Qiangsheng 55/113 conical twin screw barrel for PVC profile

Application

PVC profile, we can adjust the structure of screw according with the raw material, such as percent of CaCo3

Machine Brand

Qiangsheng

Diameter

55/113

Materials

38CrMoAlA,DIN1.8550

Processing

1)72 hours Hardening & Tempering;2)120 hours Gas Nitriding treatment;3)Bimetallic for output parts of screw barrel

Hardness

1)HB280-320 after Hardening & Tempering;2)HV850-950 after Nitriding;3) HRC50-65 after bimetallic

Nitride Case Depth

0.50-0.80mm

Nitride Brittleness

Less than Grade 2

Surface Roughness

Ra 0.4

Screw Straightness

0.015mm

Alloy Component

Ni60 Tungsten Carbide

Life time

Common Nitrided:2.5-4 years

Guarantee Time

One year

Packing

PE Casting Film wrapped and then packed in standard wooden cases for exporting

Delivery

25~35 days after order confirm

Payment Term

30% deposit by TT and 70% balance before delivery