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Screws for extrusion machines

we manufacture in the following variants:

  • nitrided screws
  • hardened screws (CPM)
  • armoured screws EXTRA
  • armoured screws EXTREM

  • NITRIDED screws – suitable for extrusion of clean materials

Diameter in mm Lenght (max.) in mmNitrided layer depth in mmWeld thickness in mmHardness 
20 ÷ 75060000.5 ÷ 0.6- 950 ± 80 HV

  • HARDENED screws (CPM) – the maximum possible screw quality 

Diameter in mm  Lenght (max.) in mmNitrided layer depth in mmWeld thickness in mmHardness  
20 ÷ 7503500-Hardened throughout
the whole cross-section		58 ÷ 61 HRC

  • ARMOURED screws EXTRA

Diameter in mm   Lenght (max.) in mmNitrided layer depth in mmWeld thickness in mmHardness  
20 ÷ 7506000-1.5¸ 250 ÷ 55 HRC

  • ARMOURED screws EXTREM, armoured layer contains tungsten carbide grains of high hardness up to 2400 HV.

Diameter in mm   Lenght (max.) in mmNitrided layer depth in mmWeld thickness in mmHardness  
40 ÷ 7506000-

1.5 ¸ 2

56 ÷ 60 HRC