Double Crane Hook Blocks Product Introduction
Double crane hook blocks are forged from high-strength alloy steel and undergo specialized treatment to ensure maximum durability. Their dual-hook design evenly distributes the load and minimizes swaying, improving lifting safety. In a tandem configuration, these blocks help distribute the load and provide excellent stability when hoisting extra-long or oversized industrial loads. Covering a load range of 2.5t to 500t, these hook blocks can be precisely matched to meet the diverse requirements of equipment ranging from light-duty workshop hoists to super-heavy-duty cranes, ensuring efficient model compatibility and operational integration. Double crane hook strictly adhere to multi-level ISO/FEM certifications, while guaranteeing the structural integrity of heavy-duty lifting systems, they are perfectly engineered to meet the rigorous demands of intensive operational cycles.
Double Crane Hook Blocks Advantage
Exceptional Lifting Stability: Designed with dual lifting points and a tandem configuration, these double crane hook blocks effectively distribute the load to significantly minimize sway, making them the ideal solution for the safe handling of oversized or irregularly shaped industrial loads.
Broad Compatibility: With a load capacity range spanning from 2.5t to 500t, these hook blocks can be precisely matched with bridge, gantry, port, and mobile cranes, meeting the diverse requirements of applications ranging from light-duty workshops to heavy-duty marine terminals.
Industrial-Grade High-Strength Materials: The core components are crafted from premium forged alloy steel, ensuring exceptional load-bearing capacity and wear resistance—guaranteeing long-term durability even under the most rigorous, continuous-operation conditions.
Strict International Standards: Adhering strictly to multi-level ISO/FEM certifications, these hook blocks provide top-tier structural safety assurance and operational longevity for heavy-duty lifting applications.
Double Crane Hook Blocks Applications

Double Crane Hook Blocks for Gantry Cranes

Double Crane Hook Blocks for Foundry Overhead Cranes

Double Crane Hook Blocks for Harbour Portal Cranes
Double Crane Hook Blocks Material & Forging Process

- Material: High-performance forged alloy steel with high tensile strength, toughness, and wear resistance.
- Process: Precision hot forging + post-forging heat treatment + precision machining; stable dimensions, consistent internal structure, no defects.
- Hardness & Toughness: Meets heavy lifting standards, stable performance under continuous duty and low-temperature environments.
Double Crane Hook Blocks Quality Inspection & International Compliance
- 100% Non-Destructive Testing: Magnetic particle inspection (MT) for surface defects; Ultrasonic testing (UT) for internal flaws.
- Load Testing: Static load verification ≥4× rated load to validate strength and deformation resistance.
- Standards Compliance:
ISO 17440 (crane forging hook limit state verification)
FEM crane specifications
GB/T 10051 (forged lifting hooks)
Full M–V strength grade certification
Double Crane Hook Blocks Operation & Maintenance

- Installation: Professional commissioning; check connections, locking latches, and pulley rotation.
- Operation: Avoid side pulling, overloading, or impact loading.
- Maintenance:
Regular lubrication of bearings and moving parts
Periodic MT/UT inspections for cracks or wear
Check safety latches and guard integrity
Follow crane-specified maintenance intervals








