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
Parameter
Feature
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
38CrMoAlA(JIS SACM645)
42CrMo(AISI 4140)
Cr12MOV(JIS SKD-11)
4Cr5MoSiV1(JIS SKD-61)
9Cr18MoV,etc
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°
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:
