DME Gate Mate Hot Sprue Bushin Tip - Manual (Page 2)

RECOMMENDATIONS AND GUIDLINES
Nozzle (multiple-applications) body or bushing (single-application) body 1.
must be cleaned of any material in the seal off area and threaded areas
before reassembling.
2. Careful attention should be taken to the tip as damage could occur if
tip is dropped or strikes a rigid material.Treat tip like a glass or ceramic
material.
3. Do NOT lubricate or use anti-sieze compound on the threads.
4. Tip must be torqued into the nozzle or bushing body using a torque wrench
at 20 to 25 ft-lbs. For the GMT4101, GM0400 and GMT0406 wear resistant
tips, and 33 5 ft-lbs. for all other tips when reassembling. For protection of
the tip point, use a 9 mm deep well 6 point socket thin wall socket for the Mini,
use a 11 mm deep well 6 point socket for the Med. and GM4, and 17mm deep
well 6 point socket for the Jumbo.
5. Careful attention should be taken to the heater and thermocouple leads
as damage could occur when working on nozzle or bushing assembly.
6. Seal ring for nozzle body must be replaced each time nozzle body and / or
manifold are removed to ensure seal off.
7. Wait a minimum of 5 minutes after set point has been achieved for sufficient
heat to transfer into the tip before molding.
8. A 0.030 min. gate dia. is recommended when using the GMT0301 Super
sharp tip.
9. For best processing and lowest gate vestige, tip must be 0.000 to 0.005
into the cavity at processing temperature. The smallest gate diameter
will yield the best gate vestige. Depending on part configuration and
plastic being used, the gate may have to be enlarged to achieve greater
flow. This increase in diameter may result in a larger gate vestige.
10. Use the GMT-2 standard tip machining dimensions when using the GMT0302
thru hole tip and use the GMT0004 jumbo tip machining dimensions when using
the GMT0007 thru hole tip. These tips are designed 0.040 shorter in length to
be direct replacement for the standard and jumbo tips. Given an "A" dimension
of 2.000 + BE (NOT 1.960 + BE) using a GMT0302 tip. For best processing and
lowest gate vestige a 0.030 to 0.060 diameter gate is recommended for the
GMT0302 thru hole tip and a 0.080 to 0.125 diameter gate for the GMT0007 thru
hole tip.
11. Using the GMT0303 no hole tip allows for flow hole alignment in the cavity. The
Gate-Mate body must be keyed into the nozzle plate or top clamp plate."A" plate
and / or cavity insert should be removed to expose tip from parting line. Determine
location of flow hole on the circumference of the tip and mark that position. Remove
the body from the mold and machine a 0.125 diameter hole into the tip at the
ME-0739-PS-222-C 02-10 GMT9999
INSTALLATION DATA
For: ALL GATE MATE STYLE TIPS
Please read carefully before installing components.
marked location. See other side of sheet for more details. Do NOT remove
tip from body. Remove any burrs around the 0.125 diameter hole and clean
all chips from the tip and body. Reassemble body back into the mold and
wire heater and thermocouple into the terminal mounting box.
DISCLAIMER
D-M-E SHALL NOT BE LAIBLE FOR MISUSE OR FAILURE TO FOLLOW THE ENCLOSED
INSTRUCTIONS AND SPECIFICATION. D-M-E HEREBY DISCLAIMS ALL IMPLIED
WARRANTIES INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL D-M-E BE RESPONSIBILE FOR LOSS OF USE, REVENUE OR PROFIT,
OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
WARNING
DANGER
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 instructions 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 can result in serious injury or death:
STORED ENERGY AND HIGH TEMPERATURE HAZARDS
This product maintains molten plastic at high pressure. Use caution when
operating and 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 caution when operating and servicing the system
to avoid severe burns. Proper protective equipment should be worn.
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 sensors to
electrical power. It will damage the product and it can 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 low Voltage or power to drive
out residual moisture before applying full power. Failure to do so may cause
damage to this product.
29111 STEPHENSON HIGHWAY
MADISON HEIGHTS
MICHIGAN 48071 USA
US 800-656-6656
CANADA 800-387-6600
www.dme.net
D M E COMPANY