# Hot Runner & Control Systems

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

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DME standard E-Series Straight-Shot Hot Sprue Bushings (Long and Short Styles) provide a .25 inch extra stock allowance on the front face to permit machining of runner profiles or part contours into that face. They are supplied with a .06 diameter gate and a .25 inch gate land. The gate diameter can be enlarged to suit the particular molding application.

Long Style See DME Control Systems Catalog for temperature controllers.

E-Series (Long Style)

NOTE: Must always be altered as shown in Figures 1 thru 6 (see next page).

5.34

.25 LAND

7 TO 3

A = 8 7

1.995 DIA. +.000 –.005

.19

8

.44

.06 DIA.

.06 DIA.

1.000 DIA.

.31 DIA.

R

.015 RELIEF

.25

.015 RELIEF

.340

ENLARGED VIEW AS SUPPLIED

.62

The DME standard E-Series Straight-Shot (Long Style) is available in seven standard shoulder lengths with either a ½" or ¾" spherical radius and 120 or 240 volt heater. The E-Series Straight-Shot (Long Style) can be retrofitted to suit the particular molding application. 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.

E-Series Straight-Shot (Long Style) Hot Sprue Bushings

WITH 120 VOLT

WITH 240 VOLT HEATER

HEATER SHOULDER LENGTH A

R

ITEM NUMBER

ITEM NUMBER

SSBT4507E1 SSBT4513E1 SSBT4517E1 SSBT4523E1 SSBT4527E1 SSBT4533E1 SSBT4537E1 SSBT6507E1 SSBT6513E1 SSBT6517E1 SSBT6523E1 SSBT6527E1 SSBT6533E1 SSBT6537E1

SSBT4507E2 SSBT4513E2 SSBT4517E2 SSBT4523E2 SSBT4527E2 SSBT4533E2 SSBT4537E2 SSBT6507E2 SSBT6513E2 SSBT6517E2 SSBT6523E2 SSBT6527E2 SSBT6533E2 SSBT6537E2

7 ⁄ 8

1 3 ⁄ 8 1 7 ⁄ 8 2 3 ⁄ 8 2 7 ⁄ 8 3 3 ⁄ 8 3 7 ⁄ 8

1 ⁄ 2

7 ⁄ 8

1 3 ⁄ 8 1 7 ⁄ 8 2 3 ⁄ 8 2 7 ⁄ 8 3 3 ⁄ 8 3 7 ⁄ 8

NOTE: 5° heater lead is standard. For 90° lead, add “90” to end of item number (e.g., SSBT4507E190).

3 ⁄ 4

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

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