Crane Hook Blocks

Shanghai ENJUE Machinery Equipment Co., Ltd is one of the most experienced manufacturers and suppliers of crane hook blocks in China. If you're going to buy custom crane hook blocks made in China, welcome to get more information from our factory. For price consultation, contact us.

The crane hook block is a critical lifting mechanism in cranes and hoisting systems, typically consisting of a hook, sheave block, bearings, and frame. It connects the crane's wire ropes or chains to the load, enabling the lifting and lowering of heavy goods. The sheave block provides a mechanical advantage that reduces tension on the wire rope.Hook assembly design and dimensions vary according to load capacity and application scenarios – including construction, marine, and industrial sectors.

ENJUE supplies single‑sheave, double‑sheave, and triple‑sheave hook blocks as required. Additional rotating functions can be integrated upon request.

All hook blocks comply with Chinese or international standards, with custom production available to your specifications. Our forged hook assemblies serve as direct replacements for crane hooks of all major brands.

Made in En Jue

Renowned for outstanding robustness, ENJUE hook blocks are engineered to withstand even the harshest operating environments. Each unit is individually designed, manufactured, and coated to meet your specific requirements.

 

High Load Capacity

Engineered for the safe lifting and transportation of heavy materials, with load ratings ranging from several tons up to hundreds of tons.

Flexible Rotation

Fitted with slewing bearings to enable free 360° rotation for precise adjustment of lifting angles.

Multi-Sheave Configuration

A sheave system is adopted to distribute loads, reducing wire rope wear and improving lifting efficiency.

Safety Locking Mechanism

Built‑in anti‑slip hook design (e.g. spring latch or safety catch) prevents accidental load release.

Wear‑Resistant Construction

Fabricated from high‑strength alloy steel or subject to thermal hardening treatment, delivering impact resistance and corrosion resistance for service in harsh environments.

Compatibility with Multiple Lifting Attachments

Can be connected to lifting chains, wire ropes, or special clamps  to expand application scenarios.

Options for Hook Blocks
  Electrical limit switches for rotation control
  Motor control: AC or DC, single‑speed magnetic drive, or Variable Frequency Drive (VFD)
  Remote control operation
  Cable collector ring below the hook for power supply
  Solid‑state soft start
  Built‑in load scale with integrated or remote display
  Air motor rotation drive
  Alternative latch assembly in place of hook; multiple sheave configurations or reeving patterns
  Pin‑type lifting eye connection
  Hardened sheaves

The crane hook block mainly consists of several simple components, including the lifting hook, nut, thrust bearing, crossbeam, and sheave.

Single Hook Block

  Lifting capacity: 0.5–80 tons (standard)
  Forged steel hook (high‑strength alloy)
  Crossbeam with thrust bearing and lock nut
  Single or multiple sheaves (1–4 grooves)
  Suitable for factory material handling, warehouse logistics, workshops, and similar applications

Forged Double Hook Block

 

Lifting capacity: 50–500+ tons (heavy‑duty)
Twin forged hooks – symmetric load distribution
Reinforced steel crossbeam
Multi‑sheave system (4–8 grooves)
Fitted with anti‑rotation washers, safety latches, and other components
Used for ladle lifting in steel plants, shipbuilding gantry cranes, and heavy machinery installation

Crane hook blocks are normally used in conjunction with overhead cranes, gantry cranes, jib cranes, and electric hoists, and are widely applied in the following scenarios:

 Precision equipment installation: For lifting precision instruments, medical equipment, semiconductor equipment, aerospace components, and more.
  Heavy machinery manufacturing: Double‑hook assemblies are commonly adopted to hoist structural parts of 50–300‑ton construction machinery , generator sets, pressure vessels, and so on.

 Iron and steel metallurgy industry: For lifting ladles, continuous casting billets, rolling mill equipment, etc.
 Port container operations: For lifting standard containers, bulk cargo forklifts, marine equipment, and more.

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