Hot Feed Screw and Barrel for Rubber Extruder

• Model NO.: Dia 75-200mm Dia 30-300mm
• Type: General Rubber Machinery
• Type of Tire Machinery: Rubber Regeneration Machinery
• Nitrided Layer Depth: 0.5-0.8mm
• Nitrided Brittleness: Less Than Grade 1
• Linearity of Screw: 0.015mm
• Specification: ISO9001: 2008
• HS Code: 84779000

• Certification: ISO
• Type of General Rubber Machinery: Rubber Extruder
• Screw Barrel: Hot Feed Screw and Barrel for Rubber Extruder
• Nitrided Hardness: 900-1000hv
• Surface Roughness: Ra0.4
• Trademark: Zhongyang
• Origin: Zhejiang of China

Hot feed screw and barrel for rubber extruder

Specification:
Diameter of pin screw and barrel: Φ 75mm-Φ 200mm
Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm
L/D ratio: 12-18

Technical Information

Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT

Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide

Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
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
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm

Warranty and service: 1 year

Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly

Experienced manufacture, we will be the best choice.

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