Operating Manual for Hot runner Nozzles Thermoject® - psg-online.de

Operating Manual for Hot runner Nozzles Thermoject®
Mini-Series 2022-Version-B
Uni-Series 2026/2040-Version-B
• Nozzle is equipped with a screw thread in the gate insert (7) and is fully assembled by the manufacturer.
• No further tightening is necessary.
• The gate inserts are equipped with a right-hand screw fine-thread!
• Please refer to the following manual when installing / removing the device.
Apply tension here
(point 2)
1. Installing/Removing of gate inserts (7) for the Hot
runner nozzle installed in the toole
First draw the mold plate down to reach the gate inserts.
Please note before!
1. Hot runner system must be cold.
100°C below the processing temperature.
2. Anti-rotation dowel must be exist.
2. Removing the gate inserts (7)
It is not necessary to take apart nozzle.
Grip the nozzle body (2) in soft V blocks an a vise.
In case of gate variants O1 and R1 dismantle the gate insert
cold. (If necessary heat up the nozzle to 100°C - 150°C ).
In case of gate style R3 and O3 heat up the nozzle to 200°C
and than dismantle. Increase nozzle temperature step by step
till 350°C, if the gate doesn´t easily turn round. (Torque see
table 1).
Switch off the nozzles immediately after dismantling the gate
insert.
Caution: pay attention to safety instructions!
3. Installing the gate inserts
Prior to installing the device it must be ensured that the sealing
surfaces on the front side and the threads on the gate insert and
on the nozzle body are free of any plastics.
3.1
3.2
Installing the gate inserts (CU-alloy) O1 and R1.
This may only be done in a cold condition of the devices.
We recommend to conduct the installation using a torque
spanner with a torque seen at the table 1.
Installing the gate inserts (thermally implanted molybdenum
alloy) O3 and R3.
Screw-in only in cold condition; tighten with a torque seen in
table 1. Then heat-up nozzle minimum to 350 °C and tighten
again with a same torque.
Caution: pay attention to safety instructions!
It is advisable to use a torque wrench for insatllation.
Parts List:
1 O-Ring
2 Nozzle body
3 Case
4 Cylindrical pin Ø 3m6x8
5 Anti-rotation dowel Ø8
6 Heater with integr.
thermocouple
7 Gate insert
8 Nozzle head
Hint:
Do not use any installing sprays!
4. O-Ring (1)
- Trial series, short-time series
It is not necessary to replace the O-ring if no plastics
infiltrated the O-ring slot. Otherwise, it is necessary to
replace the O-ring!
- During longer lasting serial production
If maintenance becomes necessary for the equipment, the
O-rings are to be replaced as a preventive measure. This is
also applies if no plastics infiltrated the O-ring slot.
Table 1: Starting torques
Temperature
Safety hint: !
• Hot fusion can spill from hot runner nozzles and systems in an uncontrolled manner from gate insert slots or
feeding slots.
• Protective goggles and protective work clothes (including gloves) protect from health damages.
O1/R1
We reserve the right to make technical changes
11/05
PSG Plastic Service GmbH • Postfach 42 01 62 • D-68280 Mannheim
Telefon +49-621/7162-0 • Telefax +49-621/7162-162 • www.psg-online.de • info@psg-online.de
2022
2026
2040
cold
10 Nm
20 Nm
55 Nm
O3/R3
350°C
15 Nm
25 Nm
80 Nm
drawn out
of position!

5. Installing/removing the nozzle during replacement
oh heater
The fundamental handling - (see fig.1-3).
Only with the Uni-series the cable attachment is to be
removed. Beside the basic device one needs the
assembly/disassembly set. Thus the housing (3) is pushed
by the nozzle body (2) - (see fig.1+2).
The ingate employment (7) remains thereby in the nozzle.
The disassembly of the heater is facilitated through for
tricks against the turn direction, when simultaneous
pushing.
Picture 1:
Picture 2:
Picture 3:
6. Further hints
Main device
Removal tools
Installing tools
In the case of use of normal ring spanners it can come
depending up on energy expenditure to the deformation of
the gate insert!
We recommend to work generally with a torque wrench.
7. Special tools for easier service
7.2 Installing-/Removal tools
Main device - device no. 265760
Installing-/Removal tools
For Thj 2022
For Thj 2026
For Thj 2040
7.3 Drawout device
Drawout device
For Thj 2022
For Thj 2026
For Thj 2040
Art.-No.
290 472
291 571
291 572
Art.-No.
290 477
291 581
291 582
The drawout device facilitates the development of the hot
runner nozzle from the tool. See fig. 4-7.
Picture 4:
Picture 5: Picture 6: Picture 7: