Screw and barrel for Rubber machines:
1. Cooling feeding rubber screw and barrel Diameter: Φ40-Φ 300mm L/D=8~20 2. Hot feeding rubber screw and barrel Diameter: Φ30-Φ 250mm L/D=4~8 3. Pin rubber screw and barrel: Diameter: Φ60-Φ 250mm L/D=12~18
In order to get good plasticization to different rubber material, we could supply different screw designs.
Screw Raw Material	Hardening
38CrMoAlA, SACM645,42CrMo.	Nitriding
42CrMo, AISI4140,	Hard chrome plating
Cr12MoV, SKD11, SKD61, YXMI, EFZD, DC53, SKH55, SKH58, SKH51, SKH-9, ASP60, ASP30, ASP25, CW6Mo5Cr4V2,	Quenching
YPT72, DAC-MAGIC, 4Cr5MoSiV1,	whole bimetallic alloy coating
HPM38, SI36, SUS440, 9Cr18MoV,	Quenching
GHⅡ3	Nature harden after heating
Barrel Raw Material	Hardening
38CrMoAlA, SACM645	Nitriding
Cr12MoV, Cr12	Quenching
38CrMoAlA, SACM645,40Cr, 42CrMo, AISI4140,	Centrifugal bimetallic casting
GHⅡ3	Nature harden after heating