Mold Bases & Plates

MOLD BASES AND PLATES

Mold Bases and Plates

Table of Contents

Introduction Terms and Conditions of Sale . . . . . . . . . . . . . . . . 4 Sales and Ordering Information . . . . . . . . . . . . . . 5 Mold and Die Steels . . . . . . . . . . . . . . . . . . . . . . . . 8 Mold Base Benefits . . . . . . . . . . . . . . . . . . . . . . . . 9 DME Item Number System . . . . . . . . . . . . . . . . . . 10 Mold Base Terminology . . . . . . . . . . . . . . . . . . . . . 11 Machining of Clamp Slots . . . . . . . . . . . . . . . . . . . 12 Mold Base and Plate Services XPress A&B Mold Bases . . . . . . . . . . . . . . . . . . . 16-19 Mold Bases PLUS . . . . . . . . . . . . . . . . . . . . . . . . . . Special Mold Bases & Pates . . . . . . . . . . . . . . . . Large Custom Mold Bases and Plates . . . . . . . . Contour Roughing Services . . . . . . . . . . . . . . . . . 20-23 25 28 28

X-, AX- and T-Series Mold Bases . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stripper Plate Mold Bases . . . . . . . . . . . . . . . . . . AX-Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T-Series................................... 3-Plate Extension Bushings . . . . . . . . . . . . . . . . . Ball Bushings for Floating Plates . . . . . . . . . . . . . Small and Shuttle Mold Bases . . . . . . . . . . . . . . Small and Custom . . . . . . . . . . . . . . . . . . . . . . . . . Shuttle Mold Bases . . . . . . . . . . . . . . . . . . . . . . . . MoldBasics Mold Bases . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Selection Tables . . . . . . . . . . . . . . . . . . . Polimold Industrial SA . . . . . . . . . . . . . . . . . . . . . American Standard Mold Bases

165-180 166 166 177 178 189 190 191 192 198

203 204 208 212

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Mold Base Series Selections . . . . . . . . . . . . . . . . 33 Standard Steel Types . . . . . . . . . . . . . . . . . . . . . . . 34-35 Standard Features Overview . . . . . . . . . . . . . . . . 36-37 Optional Features Overview . . . . . . . . . . . . . . . . . 38-39 American Standard Mold Bases

Cavity Retainer Sets Cavity Retainer Sets . . . . . . . . . . . . . . . . . . . . . . . . 215-241

Mold Plates Die Blocks & Plates . . . . . . . . . . . . . . . . . . . . . . . . Cavity Insert Blocks . . . . . . . . . . . . . . . . . . . . . . . . Standard Mold Plates . . . . . . . . . . . . . . . . . . . . . . Ejector Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ejector Retainers . . . . . . . . . . . . . . . . . . . . . . . . . . 246--252 253 254 Spacer Blocks/Rails . . . . . . . . . . . . . . . . . . . . . . . . 255-257 2 43-244 2 45 Ejector Housings . . . . . . . . . . . . . . . . . . . . . . . . . . . Small Mold Base Ejector Plates, . . . . . . . . . . . . Retainers & Housings LargeMoldPlates.......................... 262-266 2 59-260 2 61

41-42 42

Quote Request Form . . . . . . . . . . . . . . . . . . . . . . . . Special Feature Location Form . . . . . . . . . . . . . . Standard A-Series Mold Bases . . . . . . . . . . . . . . B-Series Mold Bases . . . . . . . . . . . . . . . . . . . . . . . Standard and Optional Features ............. Locating Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sprue Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upper & Lower Assembly Screws . . . . . . . . . . . . Clamp Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Guide Pins and Bushings . . . . . . . . . . . . . . . . . . .

44-129 13 0 138-164 138 139

14 0-141 142 143 Return Pins, Stop Pins and Sprue Puller Pins . . 144-145 Ejector Housing and Cover . . . . . . . . . . . . . . . . . . Ejector Assembly Screws . . . . . . . . . . . . . . . . . . . 146-147 1 48 Minimum Additional SHCS . . . . . . . . . . . . . . . . . . 149-150 Mold Base Features and Delivery Time . . . . . . . Self-Lubricating Bushings . . . . . . . . . . . . . . . . . . . Pry Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Guided Ejection Systems . . . . . . . . . . . . . . . . . . . . Lifting Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 54-155 1 56 157 Support Pillars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 58-159 Leader Pin Vents, Spring Pockets andMoldStrapHoles....................16 0 Waterlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 1 3-Plate Extension Bushings . . . . . . . . . . . . . . . . . 1 62 Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 63 Insulator Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 64 15 1 1 52 1 53

Molding Supplies Mold Cleaner and Mold Saver . . . . . . . . . . . . . . . 269-270

Technical Reference Metric Equivalents and Conversions . . . . . . . . . 27 1 Steel Hardness Chart . . . . . . . . . . . . . . . . . . . . . . . 27 2 Tensile Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 73 Draft Angles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 74 Steel Designations . . . . . . . . . . . . . . . . . . . . . . . . . 2 75 Tables for Determining Metric Tolerances . . . . . 2 76-285 American Standard Mold Base Features . . . . . . 2 88-291

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Mold Bases and Plates

Index

Mold Base 1623A.......................................................................... ..... 94-95 Mold Base 1626A.......................................................................... .... 96-97 Mold Base 1629A.......................................................................... ..... 98-99 Mold Base 1635A.......................................................................... 100-101 Mold Base 1724A.......................................................................... 102-103 Mold Base 1729A.......................................................................... 104-105 Mold Base 1818A.......................................................................... 106-107 Mold Base 1820A.......................................................................... 108-109 Mold Base 1823A.......................................................................... 110-111 Mold Base 1826A.......................................................................... 112-113 Mold Base 1829A.......................................................................... 114-115 Mold Base 1835A.......................................................................... 116-117 Mold Base 1924A.......................................................................... 118-119 Mold Base 1929A.......................................................................... 120-121 Mold Base 1935A.......................................................................... 122-123 Mold Base 2424A.......................................................................... 124-125 Mold Base 2429A ......................................................................... 126-127 Mold Base 2435A.......................................................................... 128-129 Mold Base PLUS................................................................................ 2 1- 23 Mold Base Features – Standard......................... 36-37 1 34-135 , 289-293 Mold Base Features – Optional ......................................... 38-39 , 136-137 MoldBasics Mold Bases ............................................................... 203-211 Mold Cleaner and Mold Saver.............................................................. 269 Mold Plates ................................................................................... 243-262 Mold Strap Holes ..................................................................................16 0 Parallels.........................................................................see Spacer Blocks Pillow............................................................................see Support Pillars Pockets ................................................................................................. 157 Pry Slots ................................................................................................ 153 Quick Delivery Specials........................................................................... 26 Quote Request Form, Mold Ba s e ................................................ 40-41 Rails...............................................................................see Spacer Blocks Rear Cavity Plate......................................................................see B Plate Return Pins .................................................................................... 144-145 Risers.............................................................................see Spacer Blocks Rotary Ground Mold Plates...................................................................2 46 Self-Lubricating Bushings .....................................................................1 52 Shuttle Mold Bases....................................................................... 198-200 Small Mold Bases ......................................................................... 192-195 Spacer Blocks........................................................................ 255-25 8 , 2 66 Spacers..........................................................................see Spacer Blocks Special Mold Bases & Plates..................................................................25 Special Feature Location Form ......................................................... 42 Spring Pockets.......................................................................................16 0 Sprue Bushings .....................................................................................1 39 Sprue Puller Pins ........................................................................... 144-145 Steel Designations........................................................ 8, 34-35 , 2 40 , 276 Steel Hardness Chart ...................................................................... 43 , 27 3 Steel Processing Services.....................................................................2 68 Stop Pins ....................................................................................... 144-145 Stripper Plate .................................................... 11, 33 1 66 , 168-176 , 19 0 Support Pillars............................................................................... 158-159 Support Plate...........................................................................................11 T-Series Mold Bases ................................................. 11, 33 175, 178-188 Tensile Strength .................................................................................... 273 Upper and Lower Assembly Screws .............................. ...... . 140-141 , 148 Waterlines............................................................................................. 161 X-Plate............................................................................see Stripper Plate X-Series Stripper Mold Bases................................... 11, 33 , 1 68-174 , 19 0 XPress A&B Mold Bases...................................................................16-18

3-Plate Extension Bushings........................................................... . 162,189 A-Series Mold Bases ..................................................... 11, 31 , 16 A-Slotted Rail........................................................................................2 56 AX-Series Mold Bases ...................................................... .. 11, 165 Adapter Plates, Custom Universal ........................................................ 193 Adapter Plates, Small Mold Base......................................................... 192 Additional Assembly SHCS, Minimum Recommended ................ 149-150 Arburg Locating Rings........................................................................... 138 Assembly Screws (SHCS)................................................ 140-141 B-Series Mold Bases.................................................................11, 41, 13 0 Ball Bushings......................................................................................... 190 Bolster Plate...................................................................see Support Plate Cavity Insert Blocks...............................................................................2 45 Cavity Retainer Sets...................................................................... 215-241 Clamp Slots ..................................................................................... 142 Column..........................................................................see Support Pillars Contour Roughing Services..................................................................... 28 Core Retainer Plate..................................................................see B Plate Custom Large Mold Bases and Plates....................................................28 Determining Metric Tolerances .................................................... 276-287 Die Blocks and Plates.................................................................... 242-243 Ejector Assembly Screws...................................................................... 148 Ejector Housing and Cover............................................................ 146-147 Finish Ground Mold Plates.................................................................... 246 Floating Plate..................................................................see Stripper Plate Guide Pins and Bushings...................................................................... 143 Guided Ejection Systems .............................................................. 154-155 Insulator Sheets ................................................................................... 164 Interlocks .............................................................................................. 163 Leader Pin Vents ................................................................................... 160 Lifting Holes .......................................................................................... 156 Locating Rings....................................................................................... 138 Lower Half................................................................................see B Plate Machining Services, Clamp Slots...........................................................12 Metric Equivalents and Conversions ............................................ 202 , 2 71 Mold and Die Steel Descriptions...................................... ... 34 , 2 40 2 75 Mold Base 88A.................................................................................. 44-45 Mold Base 812A................................................................................ 46-47 Mold Base 108A................................................................................ 48-49 Mold Base 1012A.............................................................................. 50-51 Mold Base 1016A.............................................................................. 52-53 Mold Base 1020A.............................................................................. 54-55 Mold Base 1112A.............................................................................. 56-57 Mold Base 1114A.............................................................................. , 58-59 Mold Base 1118A.............................................................................. 60-61 Mold Base 1123A.............................................................................. , 62-63 Mold Base 1212A.............................................................................. 64-65 Mold Base 1215A.............................................................................. 66-67 Mold Base 1220A.............................................................................. 68-69 Mold Base 1223A.............................................................................. 70-71 Mold Base 1315A.............................................................................. 72-73 Mold Base 1318A.............................................................................. 74-75 Mold Base 1321A.............................................................................. 76-77 Mold Base 1323A.............................................................................. 78-79 Mold Base 1326A.............................................................................. 80-81 Mold Base 1329A.............................................................................. 82-83 Mold Base 1518A.............................................................................. 84-85 Mold Base 1524A.............................................................................. 86-87 Mold Base 1529A.............................................................................. 88-89 Mold Base 1616A.............................................................................. 90-91 Mold Base 1620A.......................................................................... ..... 92-93

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Mold Bases and Plates

Terms and Conditions of Sale

DME COMPANY LLC (“SELLER”) TERMS AND CONDITIONS OF SALE

5.3. Because the conditions of actual production in each end user’s plant vary considerably, Buyer assumes all risk for the results obtained by use of Seller’s products in the practice of any process, whether in terms of operating costs, general effectiveness, success or failure, and regardless of any oral or written statements made by Seller related to the use of its products. 6. SECURITY INTEREST. Buyer agrees that the Seller shall have and retain a purchase money security interest in the Products securing the payment of all sums becoming due hereunder. Such security interest shall attach, upon completion of manufacture, to the Products and to any parts or accessories attached to the Products and to the proceeds of any sale thereof. Buyer represents that the Products are being acquired for use in its busi- ness and that such Products will not, without prior written consent of the Seller, be sold or removed from the Buyer’s place of business to which delivery is made. Buyer agrees upon Seller’s request to execute any financing statements or other documents required to perfect, continue or renew Seller’s security interest in the Products. 7. CANCELLATION: Unless otherwise agreed, Buyer may cancel all or any part of the order by written notice received by Seller before the completion of the order. On receipt of such cancellation notice, all work on the order or part thereof canceled will be stopped as promptly as is reasonably possible. Buyer will then be invoiced for and will pay to Seller as liquidated damages a cancellation charge. For completed items, the charge will be equal to their established prices. For items not completed, the charge will be equal to 135% of Seller’s full cost as determined by Seller in accordance with Seller’s standard accounting practices (which includes burden and overhead), plus a charge for any packing and storage, less a credit for the balance of the material as scrap. 8. RETURNS: All returned items require a Return Merchandise Authorization (RMA) number from DME. Returns are subject to a quality inspection to validate whether it can be returned to inventory. Mold bases, plates, special components, made-to-order products and other date-sensitive products are non-returnable items. Items returned to DME without prior authorization(RMA)may be returned to sender. Items returned for stated defect or non- conforming reason require detailed explanation. No products are returnable beyond 30 days after receipt. 9. CONFIDENTIALITY. Any nonpublic information, including without limitation, Seller’s pricing information and the contents of Seller’s quotation or proposal and Buyer’s purchase order, exchanged between the parties is deemed confidential (“Confidential Information”). Each party agrees to maintain the other party’s Confidential Information in confidence, to not disclose the same to any third parties, and to use it only in connection with this sale. These restrictions shall expire two (2) years after the date of disclosure. This provision does not modify or supersede any separate confidentiality or nondisclosure contract signed by the parties. 10. FORCE MAJEURE: Seller shall not be liable for any delay in performance or nonperfor- mance which is due to war, fire, flood, pandemic, acts of God, acts of third parties, acts of governmental authority or any agency or commission thereof, accident, breakdown of prod- ucts, differences with employees or similar or dissimilar causes beyond Seller’s reasonable control, including but not limited to, those interfering with production, supply or transportation of products, raw materials or components or Seller’s ability to obtain, on terms Seller deem reasonable, material, labor, products or transportation. 11. MERGER CLAUSE: This Contract entirely supersedes any prior oral or written representations, correspondence, proposals, or contracts between the parties regarding the products. This writing constitutes the final and total expression of such contract between the parties, and it is a complete and exclusive statement of the terms of that contract. 12. ASSIGNMENT: Neither party may assign this Contract without the written consent of the other party, except that Seller may assign this Contract to a third party that acquires substan- tially all of Seller’s assets and Seller may assign the flow of funds arising out of this Contract. 13. COMPLIANCE WITH LAWS. Each party agrees to comply with all applicable laws in the performance of its obligations; Buyer shall not trans-ship, re-export, divert or redirect Products outside of the original country of delivery without Seller’s prior written consent. 14. GOVERNING LAW: This Contract shall be governed by and construed in accordance with the laws of the State of Michigan, without regard to the Convention for the International Sale of Goods (CISG), which shall not apply.

1. ACCEPTANCE OF TERMS: Seller’s offer is expressly conditioned upon Buyer’s acceptance of these Terms and Conditions, and Seller expressly objects to any addi- tional or different terms proposed by Buyer. Any subsequent purchase order issued by Buyer shall constitute Buyer’s agreement to these Terms and Conditions. Any contrary terms and conditions contained in any purchase order, facility entry form, or other instrument issued by the Buyer are expressly rejected and shall not apply to this transaction. Unless otherwise specified in the quotation, Seller’s quotation shall expire 30 days from its date and may be modified or withdrawn by Seller before receipt of Buyer’s conforming purchase order. 2. PAYMENT TERMS: Payment is due in accordance with any applicable progress, advance or other agreed upon payment schedule, or, if no such schedule has been agreed to, no later than 30 days from the date of invoice. Buyer shall pay a late pay- ment charge computed at the lower of 1.5% per month on any overdue balance, or the maximum rate permitted by law. No cash discount is provided. If at any time Sell- er reasonably determines that Buyer’s financial condition or payment history does not justify continuation of Seller’s performance, Seller shall be entitled to require full or partial payment in advance or otherwise restructure payments, request additional forms of payment security, suspend its performance or terminate the order. 3. DELIVERY 3.1 In the United States, products are sold FCA Incoterms 2020 point of origin; for export sales, terms are FCA Incoterms port of export. Unless otherwise agreed in writing, title and risk of loss shall pass at the time of shipment. Buyer is responsible for all taxes, duties, fees, or other governmental charges related to its purchase of goods, with the sole exception of taxes on Seller’s income. Unless otherwise agreed, Buyer shall pay all packing and delivery costs. 3.2. Seller’s quoted lead times and targeted delivery dates are good faith estimates and are not binding on Seller. Buyer’s acceptance of delivery of Seller’s products from the carrier shall constitute a waiver of any claim for delay. If Seller notifies Buyer that the products are ready for shipment and Buyer delays delivery, then Seller may charge Buyer a storage fee equal to 1.5% of the contract price per month for each month of delay. Such storage fees are in addition to any other remedies Seller may have. 3.3. Buyer shall have a reasonable opportunity to inspect any products prior to ship- ment. Products shall be deemed to be accepted upon the earlier of: (i) inspection at Seller’s plant (provided that no reasonable objection is then raised by Buyer), or (ii) if no inspection is requested, then at shipment. If an objection is made during inspection, then Products shall be deemed accepted upon resolution of the objection by Seller. 4. WARRANTY: 4.1. Seller’s express product warranty be as stated in DME’s order specification documentation and shall run from the date of shipment (the “Warranty Period”). During the Warranty Period, Seller warrants that the products and services sold hereunder will be free from material defects in material, workmanship and title (the “Warranty”). 4.2. If, during the Warranty Period, Seller reasonably determines that the products do not meet the Warranty, then Seller shall, at its option, repair or replace the defective product or component thereof, reperform any defective services at Seller’s expense, or refund or credit to Buyer its purchase price for the defective products or services. 4.3. The Warranty will be void and will not apply: (i) when Buyer fails to promptly notify Seller of any alleged defect, (ii) when Buyer fails to properly install, maintain, or operate the products, (iii) to any product or parts thereof with a useful life, under normal operating conditions, inherently shorter than 1 month, or (iv) to products which were not made by Seller or any of Seller’s affiliates, provided that in such cases Seller shall use reasonable efforts to pass on to Buyer the manufacturer’s warranty. 4.4. If Seller provides any parts or services to repair a product that is not under War- ranty, then such parts and services will be billed to Buyer at Seller’s prevailing rates for time and materials. 4.5. The Warranty set out above is the sole and exclusive warranty provided by Seller for its products and is in lieu of, and Seller expressly disclaims, all other warranties, express or implied, oral, written or statutory. THERE ARE NO WAR- RANTIES OF MERCHANTABILITY OR FITNESS FOR PURPOSE FOR SELLER’S PRODUCTS. 5. LIMITATION OF LIABILITIES: 5.1. Seller’s total liability to Buyer arising out of or resulting from this Contract or related in any way to Seller’s products or parts thereof shall not exceed the contract price for such products. 5.2. Seller shall not be liable for loss of profit or revenues, loss of use of products, interruption of business, downtime costs, increased operating costs, or any special, consequential, incidental indirect or punitive damages, whether incurred by Buyer or Buyer’s customers.

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Mold Bases and Plates

Sales and Ordering Information

U .S .A . TERMS AND CONDITIONS OF SALE: See previous page.

PHONE ORDERS – TOLL FREE: 800-626-6653 . Our Customer Service Dept. operates Monday through Friday from 7 a.m. to 7 p.m. E.S.T. Calls can be made from anywhere in the continental U.S. and Puerto Rico (Puerto Rico: use “137” prefix instead of “1”). Our Customer Service Representatives will be happy to answer your questions on DME products or services, provide on-the-spot feedback on product availability and shipping details, or take any messages you wish relayed to your local DME sales, manufacturing or technical service representatives. MAIL ORDERS: If you prefer to order by mail, please address your order to: ● DME Company, 29111 Stephenson Highway, Madison Heights, Michigan 48071-2330 FAX 888-808-4363 ATTN: Customer Service Dept. FAX: You may fax your order to: ● DME Customer Service 248-544-5113 • 888-808-4363 CHECKS OR MONEY ORDERS: When paying invoices by check or money order, please make payable to DME Company. Include remittance copy of invoice and mail to:

● DME Company, PO Box 854867 Minneapolis, MN 55485-4867

WALK-IN ORDERS, PICK-UPS AND RETURNS: If desired, ordered products in stock at your nearest DME Service Center can be picked up rather than shipped. Walk-in orders at Service Center locations can also be processed while you wait. Products being returned for repair or exchange should be processed through Customer Service prior to being returned. SPECIAL MACHINING SERVICES: Prints for quotation on special machining work can be sent by EDI to dme_cad@dme.net or mailed to the Estimating Department of the DME manufacturing location nearest you. Call our toll-free number if desired to clarify location which serves your area. Estimating locations are: ● DME Company, 29111 Stephenson Highway, Madison Heights, Michigan 48071-2330 FAX 888-808-4363

● 1117 Fairplains Street, Greenville, MI 48838, Tel. 616-754-4601, FAX: 616-225-3924 ● 3275 Deziel Drive, Windsor, Ont N8W 5A5, Tel. 519-948-5001, FAX: 519-948-4652

Please add “DME Company” and “Attn: Estimating Dept.” to above addresses when mailing prints. To obtain prices and delivery on special mold base orders or to check status of special work in progress please contact Customer Service.

CANADA TERMS AND CONDITIONS OF SALE: See previous page. ORDERS , QUOTES, PICKUPS, RETURNS : Please c ontact 800-387-6600 CHECK OR MONEY ORDERS: Make payable to DME Company. Include remittance copy of invoice and mail to : 3275 Deziel Drive, Windsor, ON N8W 5A5 .

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Mold Bases and Plates

Mold Bases: What Every Molder Should Know

Today’s mold-building process is a complex one for the molder, who must grapple with a long list of design details before placing a tooling order It’s understandable that much of the buyer’s attention goes to the “heart” of the injection mold, the core and cavity inserts, since they have the most visible influence on the molded part Yet all sorts of ancillary tooling components, to which the molder might not be inclined to give much thought, can also make or break a mold One item that sometimes gets lost in the shuffle is the mold base, even though the wrong one can severely limit a mold’s productivity. Rather than an afterthought, mold base selection should be considered critical to the profit- ability of the entire molding project. When selecting a mold base for a particular job, first ask a few key questions about the part’s design and processing demands: What kind of ejection does it need? Does it have a cam action or some other mold-action device? What are the volume requirements? What type of machine will it run on?

Answer these design and processing questions, and you’ll be well on your way to picking the standardized or special-purpose mold base best suited to your application.

Standard Mold Base Styles For most applications, a standard mold base will fit the bill. The most common of these is the “A-style,” which has the flexibility to fit into the widest variety of molding applications. A-style models have a four-plate design: (from top to bottom) top clamp plate, A-plate, B-plate, support plate, ejector retainer, ejector bar, and ejector housing. Mold makers using an A-style mold base typically machine through pockets in the “A” and “B” plates to accept just about any kind of core and cavity insert. The B-style mold base represents an economy version of the A-style. The B-style’s two-plate design combines the top clamp plate and the “A” plate into one component called the “A-Clamping Plate” or ACP. Likewise, a beefed-up “B” plate eliminates the need for a support plate on the core side of the mold. Molders can use the less-costly “B” Series when the part design allows the cavity and core to be machined directly into the cavity plates. If the mold will be used with cavity inserts, they must be machined into blind pockets. The compactness of the “B” series mold base also makes it applicable whenever overall mold height must be limited in order to fit the tool in a given molding machine.

TOP CLAMPING PLATE

“A” PLATE

“B” PLATE SUPPORT PLATE

A-Series Mold Base Assembly The most frequently used standard assembly, the “A” Series Mold Base, is available in 43 sizes from 7 875 x 7 875 to 23 75 x 35 5

“Core and cavity inserts … have the most visible influence on the molded part yet … mold base selection should be considered critical to the profitability of the entire molding project.”

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Mold Bases and Plates

Special-Purpose Machines Mold action and ejection requirements will often dictate the use one of three special-purpose mold bases instead of the simpler A- and B-styles. One of these is the X-style, or stripper-plate, mold base. Sandwiched between the “A” and “B” plates, its stripper (“X”) plate engages the edge of a part and pushes it off the core. Typically, the X-style sees use with round parts like cups, caps, and containers. This style of mold base comes in both five- and six-plate styles- -with the six-plate version including a support plate. The AX-style mold base is used for parts requiring core detail in the cavity side of the mold. When the mold opens, that core detail is pulled so that the part remains on the ejector side of the mold. The AX-style is essentially an A-style mold base with an “X-1” plate, located between the “A” and “B” plates but attached to the top half of the mold so that it can pull the part off the core detail. The “T” style, or three-plate, mold base is used when the molder would like to separate the part from the runner in the tool. “T” series mold bases consist of an “A” clamping plate, “X-1” plate, “X-2” plate, “B” plate, and the ejector assembly and housing. Unlike the other mold bases, the “T” series operates with two parting lines. The first parting line, which occurs between the X-1 and X-2 plates, separates the part from the gate prior to opening the main parting line. The main parting line then opens and the X-1 plate is actuated to pull the runner from the sprue-puller pin, thereby freeing the runner and allowing it to be ejected separately from the part being produced.

be running. Locating rings are available in a wide variety of configurations to fit most injection machines, but the most common locating ring has a 3.990 in. outside diameter. Sprue bushings must also match the machine, so be sure to determine the proper orifice and radius of the sprue bush- ing so it will match the machine nozzle. The most common type of sprue bushing is made from 6145 steel that has been hardened, ground, and polished for sprue release. In some applications it is desirable to use a high-conductivity copper-alloy sprue bushing.

These “high-performance” sprue bushings can cool the sprue quickly when either the sprue weight is greater than the part weight, or a rigid target is needed for a robotic sprue picker, or when scrap would result from a hot sprue coming in contact with a finished part. High-performance sprue bushings are fully interchangeable with the standard bushings. A number of different clamp-slot styles are available. Whatever the style, make sure it’s compatible with the thickness of the top clamping plate on your mold base (ACP, “A” plate, or AX plate). Finally, the molder needs to determine the correct mold base height in relation to the maximum space available in the press. A mold base that won’t run in the appropriate size of press can turn potential profit into loss. In addition, be aware of the maximum stroke required to eject the part for the mold. “High-performance sprue bushings cool the sprue quickly when either the sprue weight is greater than the part weight, or a rigid target is needed for a robotic sprue picker …”

See page 11 for illustrations of standard mold base types.

Choosing A Steel Steel selection is an important aspect of specifying the right mold base. Generally there are four standard grades of steel available. See page 8 for mold and die steel descriptions. Molding Machine Considerations After you’ve picked the right style and steel for your mold base, it’s time to consider variables related to the molding machine: the locating-ring style, sprue bushing, and clamp slots. The mold maker must select the type of locating ring that will match the platens of the machine in which the mold will

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Mold Bases and Plates

Mold and Die Steels

STEEL DESCRIPTIONS Three Steels for Structural Sections DME NO 1 STEEL No. 1 Steel is a medium carbon (SAE 1030) or equivalent, silicon-killed forging quality steel with approximately 25% greater tensile strength than typical low-carbon warehouse steels. It machines easily, but is not “sticky,” permitting a faster and smoother cut. DME NO 2 STEEL No. 2 Steel is an AlSl 4130 or equivalent type steel. It is supplied pre-heat treated to 28-34 HRC (271-321 Bhn). A high strength steel, it is ideal for cavity and core retainer plates, clamping plates and support plates in molds and dies.

DME NO 7 STEEL No. 7 Steel is a modified AlSl 400 or equivalent series stainless steel for holder block applications. It is supplied pre-heat treated to 32-36 HRC (302-340 Bhn). This stainless steel offers corrosion-resistance and exceptional machinability but cannot be further hardened (see DME No. 6). For humid environments, corrosive plastics, “clean room” or “100% stainless” applications, it is an ideal choice for all structural (non-cavity/core) mold plates.

Three Steels for Cavities and Cores DME NO 3 STEEL

No. 3 Steel is a P-20 AISI 4130 (modified) type cavity steel. Exceptionally clean, it is pre-heat treated to 28-34 HRC (271-321 Bhn). It provides high hardness, good machinability and exceptional polishability for both plastics molds and die cast dies.

DME NO 5 STEEL No. 5 Steel is a thermal shock resistant, hotwork die steel (AISI-SAE H-13 type) or equivalent. Supplied fully annealed 13-20 HRC (approx. 200 Bhn) for easy machinability, it can be subsequently heat treated to the desired hardness with a minimum of deformation. Mainly used for die cast dies, it is also suitable for plastics molds with exceptional hardness or polishability requirements. DME NO 5 Steel meets or exceeds the acceptance criteria established by the NADCA as detailed in Technical Digest Number 01-80-01D DME NO 6 STEEL No. 6 Steel is T-420 type or equivalent stainless steel. It is supplied fully annealed to 8-23 HRC (179-241 Bhn), making it readily machinable. It can be used for injection, compression or transfer molds where the properties of the plastics materials or excessive condensation require a highly corrosion resistant cavity steel.

OTHER TYPES OF STEEL AVAILABLE ON SPECIAL ORDER CONTACT DME

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Benefits of Standard Mold Base Assemblies and Components Mold Bases and Plates

Seven major benefits of DME Standard Mold Base Assemblies and Components 1. Made of high quality, pre-finished mold and die steels that give you more for your money; more metallurgical consistency; more cleanliness in cavity steels; more reliability. 2. Assemblies, plates and components are pre-engineered to give you the economic and technical benefits of interchangeability. 3. Manufactured with the most advanced, precision equipment – and quality control tested to give you reliable performance. 4. Gives designers more freedom and flexibility – more time to devote to the truly creative aspects of mold, die, and product design. 5. Gives mold and die makers more time to concentrate on cavities and cores – thus increasing productivity as much as 40%. 6. Gives molders more quality parts per hour, more profitability – with production proven construction that outlasts the longest runs. 7. Readily available as you need them. The more popular assemblies are always in stock for same-day service. Our nationwide network of Service Centers means you have the products and the people near you to help you save time, money and inventory costs.

These three features have helped make DME Standard Mold Bases the most frequently specified mold base assemblies in the world: 1 CLAMP SLOTS that save platen space and provide maximum cavity area 2 TUBULAR DOWELS that provide more room for waterlines 3 THREE-PIECE EJECTOR HOUSING with shoulder bolts

DME Standard “A” Series Mold Base with Cavity Inserts

INJECTION MOLDING Injection molding is recognized as the single most important form of plastics processing. Beginning with just a handful of standardized mold bases and components in 1942, DME now offers thousands of standardized mold base assemblies and a broad variety of mold components to satisfy the consistent need for high-quality injection molds. Primarily used for thermoplastics injection molding, most of our assemblies and components are readily adaptable for the injection molding of thermosets. Future product developments from DME will include standardized components specifically designed for the injection molding of thermoset materials.

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Mold Bases and Plates

DME Item Number System

The item number system employed by DME not only prevents the duplication of item numbers, but helps lessen the chances of error in the writing and production of orders. This is accomplished by incorporating actual dimensional data into the item numbers as indicated below.

MOLD BASES – “A” AND “B” SERIES The item numbers for Standard Mold Bases in the “A” and “B” Series combine the NOMINAL Size (width and length), the Series (A or B) and the thicknesses of the “A” (or “A”-Clamping) and “B” Plates. Since all the standard mold plate thicknesses are a combination of a whole number and either 3 / 8 or 7 / 8 , the designation 13 indicates 1 and 3 / 8 ; 17 indicates 1 and 7 / 8 ; 23 indicates 2 and 3 / 8 , etc. For Example: 1016A-13-37 is the item number for a 9 7 / 8 × 16" “A” Series Mold Base with “A” plate 1 3 / 8 and “B” plate 3 7 / 8 thick. MOLD BASES – “X” OR STRIPPER PLATE SERIES The item numbers for the Stripper Plate Series Mold Base combine the NOMINAL Size (width and length), the letter “X” for Stripper Plate, the numeral 5 or 6 (plate series) and the “AX” plate thickness. Since the “X” plate thickness is constant at 7 / 8 or 1 3 / 8 , and the “BX” plate thickness is constant at 1 3 / 8 , 1 7 / 8 or 2 3 / 8 , depending on the mold base nominal size and number of plates in the assembly, these thicknesses are not represented in the item number. For Example: 1818X-5-13 is the item number for a 17 7 / 8 × 18", 5-plate “X” series Mold Base with a 1 3 / 8 thick “AX” plate. (In this case, the “X” plate is 1 3 / 8 thick, and the “BX” plate is 2 3 / 8 thick). “AX” AND “T” SERIES MOLD BASES The item numbers for the “AX” Series Mold Bases combine the NOMINAL Size (width and length), the letters “AX” and the thickness of the “A” and “B” plates. The “X-1” plate thickness is specified when ordering and is omitted from the item number. For Example: 1212AX-13-37 is the item number for an 11 7 / 8 × 12" “AX” Series Mold Base with a 1 3 / 8 thick “A” plate and 3 7 / 8 thick “B” plate. The “X-1” plate thickness (e.g. 7 / 8 ) is then specified when ordering.

The item numbers for the “T” Series Mold Bases combine the NOMINAL Size (width and length), the letter “T” and the thickness of the “X-2” and “B” plates. Since the thickness of the “A”-Clamping plate is constant at 1 7 / 8 or 2 3 / 8 and the “X-1” plate thickness is constant at 7 / 8 or 1 3 / 8 , depending on the nominal size of the mold base, these thicknesses are not represented in the item number. For Example: 1012T-23-17 is the item number for a 9 7 / 8 × 11 7 / 8 “T” Series Mold Base with a 2 3 / 8 thick “X-2” plate 8 thick “B” plate. (In this case, the “A”-Clamping plate and 1 7 /

is 1 7 /

8 thick and the “X-1” plate is 7 /

8 thick).

CAVITY RETAINER SETS Since Cavity Retainer Sets are made up solely of an “A” and “B” plate, the item numbers combine the NOMINAL Size, and the “A” and “B” plate thicknesses. (The absence of the letter “A”, “B”, “AX”, or “T” distinguish these numbers from the

item numbers of Standard Mold Bases). For Example: 1215-33-47 is an 11 7 /

8 × 15" Cavity Retainer

Set with “A” plate 3 3 /

8 and “B” plate 4 7 /

8 thick.

MOLD PLATES The same principle used for numbering Cavity Retainer Sets is applied to Standard Mold Plates; however, only one plate thickness is required. (Since the item numbers for retainer sets will always indicate two separate plate thicknesses, the distinction between these two items is easily identified). For Example: 1318-47 is a 13 3 / 8 × 18" Mold Plate, 4 7 / 8 thick. NOTE: While an understanding of this item number system can be very helpful in identifying and referring to the various standard sizes, the DME catalog should be consulted when ordering any standard item

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Mold Bases and Plates

Standard Mold Base Terminology

“B” SERIES ASSEMBLY

“A” AND REVERSE “A” SERIES ASSEMBLIES

TOP CLAMPING PLATE

“A” - CLAMPING PLATE WITH SPRUE BUSHING, LOCATING RING AND CLAMP SLOTS INSTALLED

“A” PLATE

“AX” PLATE

“B” PLATE

“BX” PLATE

“B” PLATE

SUPPORT PLATE

RETURN PINS

EJECTOR RETAINER PLATE

EJECTOR HOUSING

EJECTOR PLATE

Identical to the “A“ Series, with leader pins and bushings “reversed.“ Specify “AX“ and “BX“ plate thicknesses when ordering (rather than “A“ and “B“). REVERSE “A” SERIES

EJECTOR HOUSING

When cavities and cores are to be inserted into blind pockets, or machined directly into the “A“ and “B“ plates, the “B” Series Assembly is used. The Top Clamping Plate and Support Plate are omitted from the assembly.

The most frequently used Standard Assembly, the “A” Series Mold Base is available in 43 sizes from 7 7 / 8 × 7 7 / 8 to 23 3 / 4 × 35 1 / 2 . See pages 52-137 for complete information.

“X” SERIES (STRIPPER PLATE) ASSEMBLY

5 Plate Series

6 Plate Series

TOP CLAMPING PLATE

Most frequently used for molds requiring stripper plate ejection, the “X” Series Assembly is available with a Support Plate (6-plate series) or without a Support Plate (5-plate series).

“AX” PLATE

“X” PLATE

“BX” PLATE

SUPPORT PLATE

“T” SERIES ASSEMBLY

“AX” SERIES ASSEMBLY

TOP CLAMPING PLATE

“A”- CLAMPING PLATE

“A” PLATE

“X-1” PLATE

“B” PLATE

“X-2” PLATE

SUPPORT PLATE

“B” PLATE SUPPORT PLATE EJECTOR RETAINER PLATE EJECTOR PLATE

EJECTOR RETAINER PLATE

EJECTOR PLATE

EJECTOR HOUSING

The “AX” Series Assembly is used when the mold requires a floating plate to remain with the upper or stationary half of the assembly. It is basically an “A” Series Assembly with a floating plate (“X-1”) added.

The “T” Series Assembly is used for top runner molds that require two floating plates (“X-1” – runner stripper plate, “X-2” – cavity plate) to remain with the upper or stationary half of the assembly.

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Mold Bases and Plates

Machining of Clamp Slots

Clamp Slots facilitate clamping the mold to the platen of the press. DME mold bases offer four slot types (shown below) to ensure the best fit for the requirements of your application.

Top Clamping Plate or A-Clamping Plate

Type A

Machined when Top Clamping Plate is 0.875 or 1.375

PRESS PLATEN

0 .813

0 .625

NOTE: When this plate is 0 .875 thick, the slots will be machined through the thickness .

Special Top Clamping Plate, A-Clamping Plate, A-Plate, or AX-Plate

Type B

Machined in plates that are 2.375 or thicker

PRESS PLATEN

0 .875

0 .813

0 .625

Top Clamping Plate or A-Clamping Plate

Type C

Machined only when specified by a customer

PRESS PLATEN

0 .875

0 .813 0 .625

Special Top Clamping Plate, A-Clamping Plate, A-Plate, or AX-Plate

Type D

Machined plates that are 1.875 thick

PRESS PLATEN

0 .875

0 .625

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DME Mold Base and Plate Services

The fastest delivery of standard, mold bases, special mold bases, and contour roughed mold plates

DME Mold Base and Plate Services

Table of Contents

DME XPress A&B Mold Bases............................16 to 19 Precision Interchangeable Plates, Fully Featured, Immediate Shipment

DME XPress Plus Mold Bases.............................20 to 23 Special mold bases with the features you want delivered with precision and speed

Special Mold Bases & Plates........................................25 Special mold bases with the features you want delivered with precision and speed

Large Custom Mold Bases & Plates; Contour Roughing Services...........................................28

Precision machined custom mold bases and plates with lengths up to 90”; rough milling of your complex part shapes into mold plates

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