blow film machine screw

Material

1.SACM645

2.38CrMoALA

Process

1. 85 hours nitriding heatment in vacuum

2. Electroplated hard chromium coating

3. High-frequency quenching

4. Spray conating bimetallic-alloy

Specifications

1.Material:SACM645, 38CrMoALA

2.High quality alloy steel

3.Nitriding depth:0.5mm~0.75mm

4.Nitriding hardness:HV950~HV1100

5.Application:Plastics like PP. PE. ABS. AS. PS. PU. TPU. EVA etc.

6.Straight tolerance:0.015mm/m

Our company can produce screw and barrel according to every customer's drawing and need