INCH PINS, SLEEVES, BLADES Copper-Based Alloy Core Pins – High Conductivity Pins
INCH PINS, SLEEVES, BLADES Copper-Based Alloy Core Pins – High Conductivity Pins
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Reduces cycle times
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Ten times better conductivity than steel
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Beryllium-free copper-based alloy
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Beryllium-free copper-based alloy
.031 R MAXIMUM
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Ten times better conductivity than steel
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Hardness of 90-98 Rockwell B
+.0010 –.0000
Ø D
Ø H
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Reduces cycle times
•
Available in 18 diameters and four lengths
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Hardness of 90-98 Rockwell B
K
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Specials are also available upon request
L
Lower machining costs The high thermal conductivity of Copper-Based Alloy Core Pins reduces the need for complex cooling designs that can require hours of additional machining. Plus, the pins require no additional heat treatment and can be machined using conventional methods or EDM. Longer service life A high resistance to thermal stress, wear and abrasion which helps assure long life under virtually any molding conditions. With appropriate alteration to pin diameter, they can be used in conjunction with standard ejector sleeves. The dissimilar metals and compatible coefficient of friction will reduce metal-to-metal pick up and wear. Wide range of sizes A vailable in 18 pin diameters from 3/32- to 3/4- and 3-, 6-, 14- or 20-inch lengths. Typical Mold As shown in the pie chart, mold cooling comprises the largest part of the mold cycle. Copper-Based Alloy Core Pins can significantly reduce this mold cooling portion to reduce overall cycle time!
DME’s Copper-Based Alloy Core Pins are precision made using a high-strength, beryllium-free copper alloy, rather than traditional steels used in core pins. This alloy provides several advantages, including better conductivity, increased strength, reduced wear and resistance to rusting. These Core Pins are ideal for use in high-volume applications where part quality, fit and finish are critical. Reduced cycle time It is often difficult or expensive to adequately cool the area surrounding the core pin in a mold, especially when molding thick-walled parts. Depending on the design of the mold, it may even be impossible to run water lines near the pin, thus greatly increasing cycle times. The copper-based alloy used in these Core Pins can significantly reduce mold cycle times by increasing the rate of heat transfer. W hen used in place of traditional C- or CX-type pins, will provide up to 10 times the rate of heat transfer. Heat is transferred at twice the rate of pins made of a beryllium-copper alloy. In addition, the low-adhesion characteristics of the pins make part ejection faster and easier. All of these advantages combine to reduce the overall cycle time and increase productivity. Improved part quality The excellent thermal diffusivity of the pins provide a homogenous temperature profile throughout the core surface. Uniform temperatures result in reduced post- mold shrinkage and warpage, improving the quality of the part. Also, because of the low-adhesion characteristics of the pin, parts are not damaged by adhesion to the pin during part ejection.
Copper-Based Alloy Core Pins – PCL
Ø H HEAD DIA
K HEAD THICK
L = LENGTH
ITEM PREFIX
Ø D PIN DIA
3
6
14
20
PCL07_*_ 3/32 (.0937) PCL09_*_ 1/8 (.1250) PCL11_*_ 5/32 (.1562) PCL12_*_ 11/64 (.1718) PCL13_*_ 3/16 (.1875) PCL14_*_ 13/64 (.2031) PCL15_*_ 7/32 (.2187) PCL17_*_ 1/4 (.2500) PCL19_*_ 9/32 (.2812) PCL21_*_ 5/16 (.3125) PCL23_*_ 11/32 (.3437) PCL25_*_ 3/8 (.3750) PCL27_*_ 13/32 (.4062) PCL29_*_ 7/16 (.4375) PCL33_*_ 1/2 (.5000) PCL35_*_ 9/16 (.5625) PCL37_*_ 5/8 (.6250) PCL41_*_ 3/4 (.7500)
.250 .250 .281 .343 .375 .375 .406 .437 .437 .500 .562 .625 .687 .687 .750 .812 .875
.125 .125 .156 .187 .187 .187 .187 .187 .250 .250 .250 .250 .250 .250 .250 .250 .250
Mold Packing 10%
1.000
.250
Mold Filling 5%
Mold Open 15%
KEY TO CHART
Items in stock
*HOW TO ORDER: Combine Item Number Prefix and the length (L dimension) desired. • Precede single digit lengths with a zero. Examples: PCL2514, PCL0703, PCL2520
Contact DME for quote
Mold Cooling 70%
328
329
U.S. 800-626-6653 ■ Canada 800-387-6600 ■ www.dme.net ■ store.dme.net
U.S. 800-626-6653 ■ Canada 800-387-6600 www.dme.net ■ store.dme.net
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