DME 625 Series Tip Sub-Assemblies User Manual
DME Hardware
5° PER SIDE
"C"
"T"
"L"
"T"
"O"
"T"
"E"
.08 MIN.
"S"
30°
"N"
"N"
"S"
30°
"S"
.08 MIN.
"N"
"N"
30°
0.6250
0.0000
+0.0005
80°
"O"
.005 LAND MAX.
.020 AT TANG.
.125
.235
30°
"B"
.04-.06
.04-.06
25° MAX.
25° MAX.
"O"
5° PER SIDE
"T"
"E"
0.47
R0.125
"A"
"A"
"A"
.08 MIN.
.08
.08
"A" + .750
NEEDLE
RETAINER TIP
NEEDLE
RETAINER TIP
POINT GATE
(BODYLESS)
EXTENDED SPRUE
AND EXTENDED POINT
GATE (FULL BODY)
RUNNER DESIGN
EXTENDED SPRUE
AND EXTENDED POINT
GATE (FULL BODY)
ANGLE DESIGN
625 SERIES GATE MACHINING DIMENSIONS
STD. SPRUE AND
POINT GATE
(FULLBODY)
CUSTOMER
RADIUS TO
SUIT
For selection of gate diameter it is important to take into consideration the materials flow characterisitics, shear rate of resin, molding
conditions, fill time requirements, gate vestiage, wall thickness and configuration of part to be molded. Situations requiring high injection
velocities must be considered when selecting small gate diameters. High injection rates may require larger gates due to shear heat build
up (e.g. high weight thin wall applications). See material manufactures literature for further information regarding materials to be molded.
To compensate for nozzle's growth when heat is applied, the linear expansion of the nozzle (BE) at a given temperature must be added
to the nominal "A" dimension (See catalog for "A" lengths). The formula below shows how to figure boringing depth (dimension "A" + BE)
The tip of the nozzle will now be flush with the cavity line at processing temperature.
Formula for determining this expansion factor is as follows:
BE = "A" dimension x 0.0000063 x (Nozzle set point temperature - 68 F)
EXAMPLE: Given a 4 inch "A" dimension, with a nozzle set point temperature of 500 F:
BE = 4 x 0.0000063 x (500 - 68) = 0.011
Thus "A" + BE will be 4.011
Note: the above information is only given as an example, variations may occour based on mold configurations and cooling factor. In some
instances it may be nessessary to obtain an empirical factor.
R.312
R.010-.015
OPERATING & SERVICING INSTRUCTIONS:
All interchangeable nozzles are similar, and differ only in size and material flow
capacity.
OPERATING PROCEDURE
The nozzles are supplied with a Square (Flat) Coil or Cast-In heater equipped
with a Type "J" Thermocouple.
It is recommended to use a DME closed loop Temperature Controller for optimum
temperature control with Step Smart or Smart Step . These systems will allow
heater to dissipate any moisture and then change automatically to set point. It is
essential to use controllers with the proper votage and wattage capabilities. The
voltage and wattage of each heater is clearly marked on the heater tag. Step
Smart , Smart Step and DME are all registered trademark of DME company.
DISASSEMBLY PROCEDURE
ASSEMBLY PROCEDURE
1.Tip and nozzle thread area must be clean of any material before reassembling.
2. Apply an anti-seize compound on the tip threads.
3. Torque tip into the shank of the nozzle body. Torque and untorque two or three
times making sure there is a good contact between the tip and the nozzle.
Torque the tip into the nozzle using 30 5 ft-lbs. For protection of the tip a six
point deep well socket is recommended.
IMPORTANT SAFETY INFORMATION
A hot-runner system includes electrical elements and may contain molten
plastic at elevated temperature and pressure. To avoid injury, exercise caution
by reading these instructions before servicing or operating the system.
These instrutions must be passed on to the end user where they should be
read before using this product. Failure to do so can result in serious injury or
death.
Failure to comply will result in serious injury or death.
ELECTRICAL HAZARDS
Improper voltages or grounding can result in electrical shock. Use only with
proper voltage and a proper earth ground.
To avoid electrical shock, do not operate product when wet
Do not operate this equipment with covers or panels removed.
To avoid electrical shock, turn off main power disconnect and lockout/tag out
before servicing this device. Do not connect temperature sensor to electrical
power. It will damage the product and it could cause fire, severe injuries or even
death.
If green ground wire present, wire must be connected to the ground.
Do not rebend rigid leads. Rebending leads might result in damage to circuit.
Product might absorb moisture when cool. Use Voltage or power to drive out
residualmoisture before applying full power. Failure to do so may cause damage
to this product.
Failure to comply can result in serious injury or death.
STORED ENERY AND HIGH TEMPERATURE HAZARDS
This product maintains molten plastic at high pressure. Use caution when
operating ans servicing the system.
Physical contact with molten plastic may result in severe burns. Proper
protective equipment, including eye protection, must be worn.
This product has heated surfaces. Use cation when operating ans servicing the
system to avoid severe burns. Proper protective equipment should be worn.
CUSTOMER
RADIUS TO
SUIT
EXTENDED SPRUE
AND EXTENDED POINT
GATE (FULL BODY)
RUNNER DESIGN
MACHINING
EXTENDED SPRUE
AND EXTENDED POINT
GATE (FULL BODY)
ANGLE DESIGN
MACHINING
DME SHALL NOT BE LIABLE FOR MISUSE OR FAILURE TO
FOLLOW THE ENCLOSED INSTRUCTIONS AND SPECIFICATIONS.
DME HEREBY TO DISCLAIMS ALL IMPLIED WARRANTIES,
INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE IN NO EVENT SHALL DME BE RESPONSIBLE FOR LOSS
OF USE, REVENUE OR PROFIT, OR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGED.
DME
29111 STEPHENSON HIGHWAY
MADISON HEIGHTS
MICHIGAN 48071 USA
US 800-656-6653
CANADA 800-387-6600
www.dme.net
All 625 Series tips have 1"-16 UN threads
Nozzle body head must be keyed to prevent body from turning when tip is
installed into body. Customer to torque tip into shank of nozzle body in mold
three times to set tip before marking the runner or angle on the tip. This will
ensure that the tip will line up after runner or angle is machined onto tip.
Customer may machine relief on Extended Sprue Gate Tips for molding
heat sensitive or engineering grade materials. (see drawings above)
+.0005
-.0000
+.0005
-.0000
+.0005
-.0000
RETAINER TIP
NEEDLE
PSHOT625
3-14
625 SERIES TIP SUB-ASSEMBLIES
PACKING SLIP
ME-X741-PS-421(B)
WARNING
DANGER
1. Nozzle has been designed to have the tip removed in the press.
2. For removal of tip from nozzle, a 6 point deep well socket is recommended. The
nozzle must be at processing temperature and the heater should be turned off
when removing tip counter-clockwise from the nozzle.
B1
Tip Sub-Assemblies
Sprue Gate/Extended Sprue Gate
Point Gate (Bodyless)
Point Gate (Full Body)
ME-X741-PS-421(B)
3-14
PSHOT625
625 SERIES TIP SUB-ASSEMBLIES
PACKING SLIP
Extended Point Gate (Full Body)
B2
B3
B4
TIP
ITEM
NUMBER
"B" DIA.
"T" DIA.
"L"
"C"
SPRUE GATE
EHT0022
.187
1.000
.250
.500
EXTENDED
SPRUE GATE
EHT0023
1.000
1.250
TYPE
ITEM
NUMBER
INCLUDES
"T" DIA.
NEEDLE
RETAINER
TIP
STANDARD
EHT1306
EHN0019
EHT1354
.625
EHT1311
EHT0326
WEAR
RESISTANT
EHT1307
EHN0402
EHT0326
EHT1310
EHT1354
"O" DIA.
"N" DIA.
"S" DIA.
UNFILLED RESIN FILLED RESIN
SQ. COIL OR
CAST-IN
SQ. COIL OR
CAST-IN
.080 MIN.
.100 MIN.
2.125 MAX.
1.875 MIN.
1.0005
TYPE
ITEM
NUMBER "T" DIA. "O" DIA.
"E"
INCLUDES
NEEDLE
RETAINER
TIP
STANDARD
EHT2021
1.000
.125
.250
EHN0019
EHT0036
WEAR
RESISTANT
EHT2022
EHN0402
EHT1326
TYPE
ITEM
NUMBER "T" DIA. "O" DIA.
"E"
INCLUDES
NEEDLE
RETAINER
STANDARD
EHT2321
1.000
.125
1.000
EHN0019
EHN2336
WEAR
RESISTANT
EHT2322
EHN0402
REVISIONS
ECN
REV
DESCRIPTION
BY
DATE
Released as per NDR-M0585
JA
9-20-2011
M4818
B1
Changed from: .100 To: .125
JA
3/26/2014
B2
Changed from: .180 To: .235
B3
Added: .47
B4
Added: R.125
ME-031/2008-09-18
DESCRIPTION
ASSEMBLY NAME
SCALE
US PART NUMBER
ME PROJECT
DWG NO(REV)
A1
MECHANICAL ENGINEERING
29111 STEPHENSON HWY.
MADISON HEIGHTS
MICHIGAN 48071
U.S.A.
PH: +1-248-398-6000
FX: +1-248-544-5707
625 Series Tips and Retainers Packing Slip
Externally Heated System
PSHOT625
ME-X741-PS-421(B)
1:1
GLOBAL FAMILY CODE
REVISION: PRIMARY.SECONDARY
LIFE CYCLE STATUS
B
RELEASED
2. MAXIMUM ALLOWED
SURFACE FINISH
ROUGHNESS TO BE
Ra 1.6 MICROMETER
UNLESS OTHERWISE
SPECIFIED.
1. REMOVE ALL BURRS
AND BREAK ALL SHARP
EDGES 0.35 MAXIMUM
UNLESS OTHERWISE
SPECIFIED.
Key Characteristic - -a product characteristic whose variability could significantly
affect product function and/or customer satisfaction.
Safety Characteristic - -a product characteristic whose variability could significantly
affect the products safety or compliance with govermental regulations.
This document is proprietary to D-M-E Company and is not used, circulated, reproduced,
copied or disclosed in any manner whatsoever without the prior specific written permission
of an authorized official of the D-M-E Company.
ANGLES
0.000
0.00
0.0
DATE
DATE
DATE
APPROVED
CHECKED
DRAWN
0 30'
0.013
0.13
0.3
0.8
0
UNLESS OTHERWISE SPECIFIED
TOLERANCES ARE:
DIMENSIONS ARE IN MILLIMETERS
NOTES:
PLOT DATE
HEAT TREAT
MATERIAL
Adas
4-17-2011
THIRD ANGLE PROJECTION