Rocket
Groups

Rocket groups are located at the end of the injection screw and serve as the most important for the injection system. A rocket with suitable tolerances will ensure the correct and smooth operation of the injection unit.

Rocket Groups with Protective

Rocket groups are parts that are subjected to very high pressure and corrosion. In particular, the point where the rocket and the ring are in contact with each other is subject to very high corrosion. With the special welding of these zones, the service life of the rocket group gets 2-3 times longer.

 

ROCKET GROUP, NOZZLE MATERIALS
Norm Material Heat Treatment Hardness Depth of Hardness (mm)
12.344 X40CrMov51 Hardening 52-54 HRc Full Section
12.379 X155CrVMo121 Hardening 58-62 HRc Full Section
14.122 X35CrMo17 Plasma Nitration 1000-1050 HV5 0,15-0,20
12.316 X36CrMo17 --- 36-40 HRC Full Section
PM Powder Met. Various Hardening 54-64 HRc Full Section

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