Rubber Machine Screw Barrel Rubber Screw Barrel

  • Model NO.: Rubber screw barrel
  • Type: General Rubber Machinery
  • Type of Tire Machinery: Rubber Regeneration Machinery
  • Trademark: Zhongyang
  • Origin: China(Mainland)
  • Certification: ISO
  • Type of General Rubber Machinery: Rubber Extruder
  • Screw Barrel: Rubber Machine Screw Barrel
  • Specification: ISO9001: 2008
  • HS Code: 84779000
Rubber screw barrel, Rubber machinery screw barrel, plastic machinery screw barrel, extrusion screw barrel

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.

Photovoltaic Bracket Roof Hook

Solar Roof Hook Stainless Steel Fixed Connects The Photovoltaic Hook Of The Solar Cell Bracket,Roof Mounting , Custom , Stainless Steel

Snow Load:

Custom
Warranty:
No
Product name:
Solar Roof Hook
Material:
Stainless Steel
Usage:
solar system
MOQ:
500pcs
Our Service:
OEM/ODM
Package:
opp bag/Other
Length:
200/250/300/400/500
Delivery time:
5-25Day
Certificate:
ISO/ROHS
Sample:
Free


Solar Roof Hook,Solar Roof Brackets,Roof Solar Mounting System,Photovoltaic Mounting System

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