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ZY is a professional designer and manufacturer for screw and barrel, Pls find the detailed info. Of feed screws as below:
Specification:
Screw Diameter: Ø 15- Ø 300
L/D ratio: 15-46
Product classification:
Aiming at different plastic products the screw can be chosen from: General type, pin type, barrier type, separation type, and gas-exhausting type, etc.
Base Materials:
(1)38CrMoAlA(JIS SACM645)
(2)42CrMo(AISI 4140)
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
Nitriding treatment
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Bimetallic layer depth: 3mm
Terms and conditions:
Production time: 25 days
Packing: Export standard wooden case
Trade Terms: FOB, CNF, CIF, etc
Payment Terms: TT or L/C
Warranty and service: 1 year(Life time is much longer)
We offer:
Qualified products
On time delivery
Technical supports and services
Experienced manufacturer, we will be your best choice.
Feed Screws Extruder Screws