Feed screw

Feed screw 1.Material: 38C rMoALA 2.Double-alloy technical 3.Nitriding hardness:800-1050HV

Feed screw  

The conical twin screws and barrel can be designed different structure according to the different product and market requests.

 Specifications of conical twin-screw and barrel:

 

45/90	45/97	50/103
55/110	60/120	65/125
68/146	80/156	80/172
92/188

 

Technical standard:

1.Material: 38C rMoALA

2.Hardness of modulator: HB260-290

3.Hardness of nitrification:800-1050HV

4.Depth of nitrification layer: 0.4-0.7mm

 

Double-alloy technical standard:

Double-alloy level:

1.Level A - containing tungsten of 40%

2.Level B - containing tungsten of 25%

3.Level C - containing tungsten of 9.5%

4.Hardness of alloy: HRC56-65o

 

Applied scope of plastic: applied for PVC and WPC material,  has a high output and stable performance.

1.Components of alloy powder: Ni + Co + Cr + W + Si + Fe + B + C

2.Depth of alloy layer: 1.2 mm-2.0 mm

3.Hardness of alloy: HRC>65°

 Two stage type of barrel (material of powder outlet is Cr12MoMV, vacuum quenching)and screw (powder output is treated by alloy), the using lifespan is long as twiceas common ones.The twin screws and barrel can be equipped in differents