E-Series Straight Shot Straight Shot® Hot Sprue Bushings
80
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
E-Series (Long Style)
NOTE: Must always be altered as shown in Figures 1 thru 6 (see next page).
.25 LAND
5.34
7 TO 3
A = 8 7
1.995 DIA. +.000 –.005
.19
8
.06 DIA.
.44
.06 DIA.
1.000 DIA.
.31 DIA.
R
ENLARGED VIEW AS SUPPLIED
.015 RELIEF
.25
.015 RELIEF
.340
.62
E-Series Straight Shot (Long Style) Hot Sprue Bushings
Replacement Cores
WITH 240 VOLT HEATER ITEM NUMBER
SHOULDER LENGTH A
R
IEM NUMBER
SPH.RAD.
SSBT45E SSBT65E
.500 .750
1 7 ⁄ 2 3 ⁄ 3 3 ⁄ 2 7 ⁄
SSBT4517E2 SSBT4523E2 SSBT4533E2 SSBT6527E2
8
1 ⁄
2
8
8
3 ⁄
4
8
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.
NOTE: 5° heater lead is standard. For 90° lead, add “90” to end of item number (e.g., SSBT4517S290).
See DME Control Systems Catalog for temperature controllers.
U.S. 800-626-6653 n Canada 800-387-6600 n DME.net n store.DME.net
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