Crane Main Hook Block

If you need anything, feel free to contact us anytime.

Crane Main Hook Block

1.Super Load Capacity: The crane main hook block is one-piece forged from alloy steel, tensile strength >800 MPa. With heat treatment, wear resistance is 30% higher than standard hooks.

2.Precision & Adaptability: Each hook block crane is CNC-machined with self-lubricating bushings, lowering noise (≤65 dB). Fits over 90% of crane brands.

3.Strict Safety Testing: Every main hook block passes magnetic inspection, ultrasonic checks, and 1.5× load testing.

4.Flexible Customization: Options include hook size, pulley number, and lifting points. We provide fast service, 1-year warranty, and lifelong support.

Specification Category	Specification Description	Remarks
Material	Hook: Alloy Forged Steel (42CrMo/35CrMo)	Complies with GB/T 10051.2 Standard
Rated Lifting Capacity	5t – 500t	Customizable for larger loads
Number of Pulleys	1 – 8 pieces	Based on lifting capacity and ratio
Pulley Diameter	120mm – 800mm	For wire rope Ø 6mm – 60mm
Surface Treatment	Powder Coating (RAL 2003 Orange) / Hot-Dip Galvanizing	Rust resistance: ≥480h salt spray
Safety Factor	Static ≥3.5, Dynamic ≥2.5safety factor ≥2.5	Complies with ISO 10474
Temp. Range	-40℃ – 60℃	Custom low-temp options available
Warranty	1 Year	Lifetime tech support

Product Features and Applications

1.Forged Strength: No welds, higher wear resistance.

2.Smooth Operation: Bearings and bushings reduce friction and rope wear.

3.Safety Design: Anti-drop baffle and rust-proof coating.

4.Low Maintenance: Replaceable crane hook block parts save cost.

The crane main hook block is vital in ports for container handling, in mining for ore lifting, in construction for steel bars and prefabricated components, in metallurgy for ladles and billets, and in warehousing for heavy cargo stacking.

Product Details

1.Hook Head Detail: Arc transition design prevents rope cutting; anti-drop baffle welded with thickened plate keeps gap ≤5mm.

2.Pulley Block Detail: Precision-machined hole tolerance ±0.05mm with high-hardness bearings, low noise, and quenched surface for wear resistance.

3.Connecting Shaft Detail: Made of 40Cr with chrome plating for smoothness and corrosion resistance. Double-nut lock prevents loosening.

Product Support

Hanko Heavy Industry specializes in the R&D and manufacturing of the crane main hook block. By using forged alloy steel, we ensure exceptional load capacity and wear resistance. Every step—from raw material inspection to machining—is strictly controlled. All blocks undergo non-destructive testing and overload tests before shipment. Whether single-or multi-sheave, outdoor or rough-terrain, our hook block crane solutions are tailored to customer needs.

Swivel Crane Hooks

Swivel crane hooks allow loads to rotate freely, reducing wire rope stress and improving accuracy.

Single Crane Hook

The single crane hook is the most common lifting component in hoisting systems. Compared with double hooks, it provides a simple, cost-effective solution for medium loads.

Overhead Crane Hook

The overhead crane hook is a vital lifting component for bridge cranes, gantry cranes, and other overhead lifting equipment.

Mobile Crane Hook

A mobile crane hook is a vital component that connects the crane to the load. Designed for heavy-duty use, it ensures strength, safety, and efficiency.

Forged Crane Hook

A forged crane hook is a key lifting component that ensures both operator and load safety.

Eot Crane Hook

The eot crane hook connects crane and load, ensuring safety and efficiency during lifting. It works with hoist and trolley systems and supports crane main hook and auxiliary hook lifting.

Complete Guide

About Hanko

Hanko products are manufactured using high-strength materials and go through strict quality inspections to ensure durability and operational safety.

We offer custom manufacturing services for non-standard parts based on customer drawings or specific requirements.

Our products meet international standards and are exported worldwide, earning the trust of clients across Asia, the Middle East, Europe, and beyond.

Why do crane parts need to be replaced regularly?

Over time, wear and tear can affect safety and performance — regular replacement ensures reliability.

Do you offer long-term spare parts supply?

Yes, we ensure continued availability of all key spare parts.

Do you offer on-site support?

Yes, we can dispatch engineers for on-site installation or commissioning

Send Your Inquiry Today

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Product Category2

Crane Main Hook Block

If you need anything, feel free to contact us anytime.

Crane Main Hook Block

Product Features and Applications

Product Details

Product Support

Related Products

Swivel Crane Hooks

Single Crane Hook

Overhead Crane Hook

Mobile Crane Hook

Forged Crane Hook

Eot Crane Hook

Complete Guide

About Hanko

Send Your Inquiry Today

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