Twin Screw Cylinder Barrel Twin Parallel Screw Barrel/Machine Screw Twin
5.0 Ton Spider Crane
Towable boom lift is mainly featured by
its compact size, stable lifting, 360 degree rotating and multi powers
with the max platform height from 10m to 20m.
5.0 Ton Spider Crane,Auto Spider Crank Truck,16.8M Spider Crank Truck,5Section Spider Crane Truck Hubei ruiyate Automobile Co.,Ltd , https://www.ruiyateworkingtruck.com
Twin Screw and Cylinder, Parallel twin Screw Cylinder, Twin parallel Screw Cylinder in full specifications.
Technical Information
Base Materials: Stainless
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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Main Base materialsÂ
  1.38CrMoAlA  (Nitriding Steel)Â
2.  SKD-61   (Special Tool Steel) 3.  42CrMo (Ultrahigh Strength  Steel) 4. DC53 ( Cold Work  Die Steel)   5. W6Mo5Cr4V2 ( High-Speed  Tool  Steel ) 6. HPT  Â
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Main Alloy Materials 1.  Ni-based alloy/Deloro alloyÂ
2.  Tungsten carbide/Wolfram carbide 3.  NiCo-based alloy 4. Fe-based alloy 5. Co-based alloy    Â
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Processing Technics 1. Heat treatmentÂ
2.  Quenching 3. Nitriding treatment 4.  Bimetallic alloy welding 5. Bimetallic alloy centrifugal casting 6. Hard-chrome electroplating  Â
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Technical parameters Nitriding layer depthÂ
0.5-0.8mmÂ
Nitrided hardnessÂ
HRC56-58Â
Nitrided brittlenessÂ
Less than grade 1Â
Surface roughnessÂ
Ra 0.4Â
Linearity of screwÂ
0.015mmÂ
Hard-chrome plating hardnessÂ
≥HRC57Â
Chrome-plating layer depthÂ
0.03-0.09mmÂ
Bimetallic layer depthÂ
3 mmÂ
Bimetallic layer hardnessÂ
HRC58-62Â
Above are main technical information, a suitable screw and barrel will be made according to your requirement.Â
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