Crane Hook And Block

Crane hooks and blocks are core components in industrial lifting operations and are designed for heavy-duty lifting, precise positioning and long-term durability. This product uses advanced materials and manufacturing processes, combined with intelligent safety technology, and is suitable for heavy equipment handling needs in construction, ports, manufacturing, energy and other fields, ensuring both operational efficiency and personnel safety.

Product features of crane hook and block

Ultra-high strength and durability

• Materials Science:

  • قلاب: Forged from alloy steel (such as S355/S690), after quenching + tempering treatment, the tensile strength is ≥800 MPa, and the toughness is increased by 30%.

  • Pulley block: The pulleys are made of wear-resistant cast steel or engineering nylon composite materials, embedded with high-precision deep groove ball bearings, reducing the friction coefficient by 40%.

• Surface treatment:

  • Hot-dip galvanized or sprayed with epoxy resin coating, resistant to salt spray, acid and alkali corrosion, and suitable for harsh environments such as ports and offshore platforms.

Intelligent security protection

• Overload protection: integrated electronic sensor (optional), real-time monitoring of load, automatic locking and sound and light alarm when overloaded.

• Mechanical insurance: The standard rotating safety tongue prevents the wire rope from accidentally falling off; the hook neck is designed with a stress dispersion structure to avoid stress concentration and fracture.

Modular and flexible configuration

• Supports free combination of single pulley to 6 pulley groups, adaptable load range from 1 to 500 تن.

• Quick-release connection design eliminates the need for special tools when replacing accessories, reducing maintenance time by 50%.

Lightweight and energy-saving design

Through topology optimization and finite element analysis (FEA), the dead weight is reduced by 15% under the same load, reducing the energy consumption of the crane.

Crane hook and block technical parameters

parameter	Standard model	Heavy duty model
Rated load	1 تن - 100 تن	More than 100 تن
Applicable wire rope diameter	14–20 mm	32–50 mm
Number of pulleys	3 pulley block	6 pulley block
Hook opening size	50 مگنی	120 مگنی
self-respect	62 کلوت	285 کلوت
Operating temperature range	-40℃ ~ +150℃	-40℃ ~ +150℃
عامل ایمنی	4:1 (DIN standard)	5:1 (FEM standard)
Certification standards	ایزو 4309, CE, OSHA	ایزو 4309, CE, ASME B30.10

Crane hook and block product advantages

Excellent security

• It has passed ISO 4309 and FEM international certification, with a safety factor of more than 4:1.
• Regular testing reports and traceable quality systems ensure full life cycle reliability.

Efficient working ability

• The pulley block adopts a low-friction design, which increases the service life of the wire rope by more than 30%.
• Supports quick-release replacement parts to reduce downtime and maintenance time.

سازگاری محیطی

• The surface is galvanized or sprayed with anti-corrosion coating, and can withstand extreme temperatures from -20°C to 120°C as well as humidity and salt spray environments.

Reasons to choose Weihua crane hook and block

As an industry-leading lifting equipment supplier, Weihua is committed to combining innovative technology with user needs to provide customers with safe, efficient, and low-maintenance cost lifting solutions. Whether a standard model or a custom design, our crane hooks and blocks will become your reliable partner in productivity.