STC MARINE ENGINEERING LIMITED

Crane Sheaves

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Crane Sheaves

Core Functions and Applications
Crane sheaves are critical load-bearing and guiding components for marine deck cranes (cargo cranes, material cranes, and hose cranes). They enable the lifting and horizontal movement of cargo through the rotation of steel wire ropes. Compatible with international crane brands such as MacGregor, Mitsubishi, and IHI, these sheaves comply with the ISO 4309 international standard to ensure safe and efficient lifting operations.

Product Detail

Product Advantages

  • High-strength material: Made of high-quality alloy steel via forging, with surface quenching treatment (hardness: HRC45-55), improving wear resistance by over 30% and ensuring a service life of up to 10 years
  • Corrosion resistance: After shot blasting for rust removal, marine-specific anti-corrosion paint is applied, achieving over 800 hours of salt spray corrosion resistance
  • Stock delivery: Regular models are shipped within 24 hours of order placement; for emergencies, express delivery to ports is available
  • Customization service: Custom production can be completed within 3–7 days based on customer-provided sheave drawings or original equipment parameters, supporting non-standard groove designs and load requirements

Compatible Brands and Stock Specifications

We maintain sufficient stock of regular crane sheave models, complete with supporting components like bearings and bushings, which can be used as direct replacements for original sheaves. Popular stock specifications include:
  • Groove design for 6×19 steel wire ropes (for MacGregor 10-ton deck cranes)
  • Groove design for 8×36WS steel wire ropes (for Mitsubishi 20-ton deck cranes)
  • Single-sheave rated load: 5–200 tons (covering needs from small material cranes to heavy-duty cargo cranes)
  • Sheaves for various dedicated deck cranes (including bearings of original specifications)

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