Hot Runner & Control Systems

Hot One Nozzles Housing, Nozzle Plate and Gate Machining Dimensions Detail

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39

Manifold Housing, Nozzle Plate, “A” Plate and Gate Machining Dimensions

Ø 2.756 0.000 +0.001

Ø 4.000 LOCATING RING BORE

HEAD BO

LOCATING RING

Ø 2.125 H

.261 DIA. HOLE THRU 5/16–18 TAP

F DIA.

ITEM NUMBER F DIA.

G DIA.

H DIA. BUSHING HEATER CABLE EXIT

J DIA.

WATER LINES ARE RECOMMENDED IN HOUSING

Ø 8.0 (OPTION ANTI-RO

G DIA.

.34 DEEP 2-PLC'S. TYP.

EHL0252 EHL0253 EHL0254 EHL0255

4.000 5.500 4.000 5.500

3.312 4.625 3.312 4.625

3.000 4.000 3.000 4.000

2.500 3.750 2.500 3.750

H DIA. J DIA.

0.75

RISER PAD HEIGHT

.219

1.174

(4) 5

Manifold housing and insulator sheet are to be same width and length as mold base. Height of manifold housing to vary with stackup of manifold, riser pads and spacer rings. 3.50

.250 MIN.

1.174 1.378

.25 MIN.

K DIA. M DIA.

HOUSING MUST BE EQUAL TO RISER PADS, SPACER RING AND MANIFOLD AT ROOM TEMPERATURE

Ø 8 X18L (OPTION ANTI-RO

MANIFOLD HEIGHT

1.000 (1.500 FOR 625 SERIES)

NOTE: MATCH MACHINE NOZZLE TIP ORIFICE

NOZZLES

N DIA.

R 0.750

4 5 6

.625 WIRE CHANNEL

INSULA (OPTIO

Ø 0.625

+.001 –.000 M DIA.

N DIA. MIN for HIGH PERFORMANCE

N DIA. MIN for SQ. COIL

.250 MIN.

SERIES

K DIA.

.250 MIN. +.001 –.000

SPACER RING AND SUPPORT PAD HEIGHT

1.875 NOZZLE PLATE RECOMMENDED

.250

250 375 625

1.56 2.06 3.06

1.501 2.001 2 3.001

1.062 1.250 1.875

1.187 1.437 2.125

RECOMMENDED (.125 MIN.)

.31 MIN.

A + BE

WATER LINES ARE RECOMMENDED IN

R0.030

"A" PLATE AND NOZZLE PLATE

2.125 MIN.

MIN. WIRE CHANNEL

3

.125 RAD. MAX.

1

NOTE: The expansion factor must be taken into consideration prior to machining for, and installing, nozzle. This expansion factor (BE) must then be added to the nominal “A” dimension. Formula for determining this expansion factor is as follows: BE = “A” dimension x .00000633 x nozzle setpoint temp – 68°(assuming the mold is at 68˚F during operation). If mold temperature is different, substitute 68˚F with actual mold temperature. EXAMPLE: Given a 3 inch “A” dimension, with a nozzle setpoint temp. of 500°: BE = 3 x .0000063 x (500-68) = .008… thus A + BE = 3.008. The above information is only given as an example. Variations may occur based on mold configurations and cooling factor. In some instances, it may be necessary to obtain an empirical factor. 0.31 MIN. WATER LINES

1"-16 UN TORQUE TO 30

250 & 375 SERIES POINT GATE (BODILESS) MACHINING DIMENSIONS

625 SERIES POINT GATE (BODILESS) MACHINING DIMENSIONS

SPRUE AND POINT GATE (FULL BODY) MACHINING DIMENSIONS

4 NSIONS

Ø2.125 MIN 80°

Ø2.125 MIN

80°

“R” RAD.

.010 –.015 RAD.

30°0'

30°0'

30°

30°

R0.010-0.015 R0.125

+.0005 –.0000

.770

+.0005 -.0000

.005 LAND MAX.

.180

“S” DIA.

“0” DIA.

ØS

R0.312

.080 LAND

.100

.030 .005 LAND (MAX. )

+.0005 –.0000

ØO

.020 AT TANGENT

NOTE: Extended sprue length will add .750 to land.

“Q” DIA.

Ø0.6250 0.0000 +0.0005

O DIA.

SERIES T DIA.

S DIA.

SERIES NOZZLE

Q DIA.

R RAD.

UNFILLED RESIN .028 MIN. .028 MIN. .080 MIN.

FILLED RESIN

*.375

*.3755

250 AND 375

250 375 625

.060 MIN. .060 MIN. .100 MIN.

.3750 .5000 .6250

.125 .187 .312

.500 .750

.5005 .7505

1.000 1.000

1.0005 1.0005

625

NOTE: The “O” diameter can be opened by the customer to suit the application. Also the land must be remachined to .005 max. after increasing the gate diameter.

*250 Point Gate (Full Body) only.

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

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