# Hot Runner & Control Systems

Straight-Shot Hot Sprue Bushings T-Series Straight-Shot ™

86

The DME standard “T” Series Straight-Shot improves the performance of three-plate molds by virtually eliminating the sprue from the runner system. It is available with either 1 / 2 " or 3 / 4 " spherical radius, 120 or 240 volt heater and a 7 / 8 " or 1 3 / 8 " long stripper plate bushing to suit the application. NOTE: 5° heater lead is standard. For 90° lead, add “90” to end of item number (e.g., SSBT4517T10790).

NOTE: The expansion factor must be taken into consideration prior to machining for and installation of the bushing. This factor (BE) must then be added to the A dimension. The formula for determining this expansion factor is as follows: BE = “A” dimension x 0.00000633 x nozzle set point - 68ºF (assuming the mold is at 68ºF during operation). If mold temperature is different, substitute 68ºF with actual mold temperature. EXAMPLE: Given a setpoint of 500°F: BE = 1.375 × .0000063 × (500 – 68) = .004 thus 1.375 + .004 = 1.379. Please note that the above information is given as an example. Variations may occur based on mold configuration and cooling factor. In some instances, it may be necessary to obtain an empirical factor.

5.09

+.000 –.005

A = 1

1.995 DIA.

7

8

No. 10-24 × LONG F H S (2) INCLUDED 2 1

.19

.16 DIA.

.97

+.0000 –.0005

R

.31 DIA.

1.4995 DIA.

.97

1.69 DIA.

.340

.25

L

T-Series Straight-Shot Hot Sprue Bushings

WITH 120 VOLT HEATER

WITH 240 VOLT HEATER

Typical Application

R

L

TYPICAL APPLICATION

ITEM NUMBER

ITEM NUMBER

SSBT4517T107 SSBT4517T113 SSBT6517T107 SSBT6517T113

SSBT4517T207 SSBT4517T213 SSBT6517T207 SSBT6517T213

7 ⁄ 8

1 ⁄ 2 3 ⁄ 4

1 3 ⁄ 8

7 ⁄ 8

1 3 ⁄ 8

Replacement Stripper Bushings ITEM NUMBER*

MOLD OPEN

L

SSSB07 SSSB13

7 ⁄ 8

1 3 ⁄ 8

*Includes mounting screws.

X-2 PLATE

X-1 PLATE

A-CLAMPING PLATE

For Improved Performance and Increased Productivity: • Use DME standard T-Series (3-Plate) Mold Bases (See DME Mold Bases and Plates Catalog)

U.S. 800-626-6653 n Canada 800-387-6600 n dme.net n store.dme.net

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