Screw tip assembly

Screw tip,check ring,rear seat,retainer consist screw tip assemblies.

Ring Diameter:18mm,20mm,22mm,25mm,28mm,30mm,35mm,40mm,45mm,50mm,60mm,65mm,70mm,75mm,

85mm,90mm,96mm,100mm,110mm,120mm,125mm,120mm,140mm,150mm,170mm,210mm or customed made.

• Material

38CrMoAlA(JIS SACM645)
42CrMo(AISI 4140)

Cr12MOV(JIS SKD-11) 
4Cr5MoSiV1(JIS SKD-61)

9Cr18MoV,etc

• Parameter

Hard Chrome Plating treatment:

Thickness of Hard Chrome Plating Layer: 0.05-0.10mm

Hardness of Hard Chrome Plating Layer: ≥950HV

Nickel alloy plating.treatment:

Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy)

Bimetallic Screw: Plasma Alloy Coating Spraying

Depth of Bimetallic Layer: >2mm

Hardness of Bimetallic Layer: HRC55°-72°

• Feature

good for color mixing,excellent shut-off,faster screw recovery,possibility of faster cycles,

Suit for Arburg,Boy,Bucher,Chuan Lih Fa,Cincinnati,Demag,Dima,Engle,Fu Chun Shin,Haitain,Husky,Kawaguch,Maplan,Niigata,Nissei,Tishiba,Toyo,Wabash MPI,etc.

The following basic dimensions can be varied here according to their interdependency:

• OD/ID ratio

• Outer diameter and inner diameter matched to the required OD/ID ratio

• Flight pitch of the screw

• Length of the element

• Machine-specific clearances between the element and the barrel hole or the element and the adjacent element.



• By screw elements, we mean single or multi-flight feed screws for transfering products or melt. Depending on the machine output, different ratios of outer diameter to axis clearance can be used In the case of low OD/ID ratio extruders, 1 to 3-flight profiles are possible, although current deeper cut models are generally fitted as standard with double-flight elements