Knowledge Center
Hook Blocks for Cranes
Engineering note from Henan Sinomac Industrial Co., Ltd.
HOOK BLOCK FOR CRANES
The manufacturing of Hook Block is a complex process involving material selection, manufacturing process, heat treatment, inspection and other steps. The following are the main steps and key points of crane hook manufacturing:
The material of hook block is usually selected from high-strength, wear-resistant and fatigue-resistant alloy structural steel. Commonly used materials include 20 high-quality carbon steel or hook-specific materials DG20Mn, DG34CrMo, etc.
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The material should have high mechanical strength and good impact toughness to withstand the impact load at the moment of starting and stopping the lifting mechanism.
The hook block is divided into forged hooks and laminated hooks according to the manufacturing method. Forged hooks are manufactured as a whole, simple to manufacture, easy to use, and suitable for work occasions with a lifting weight of less than 80 tons. Laminated hooks are made of riveted steel plates cut and formed from several pieces. They are safer, but have a larger dead weight and are suitable for cranes with large lifting weights or lifting molten steel buckets.
Related Products
1-20-ton-light-gantry-crane
- Capacity
- 1~20 Tons
- Lift Height
- 3~40m
20-ton-heavy-gantry-crane
- Capacity
- 0.5~800t
- Span
- 12~50m or Customized
Double-girder-gantry-crane
- Capacity
- 0.5~800t
- Span
- 12~50m or Customized
Semi-gantry-crane
- Capacity
- 0.25-80 Ton
- Lift Height
- 12m
Frequently Asked Questions
Who should read hook blocks for cranes?
Plant maintenance engineers, crane service companies and buyers specifying a replacement. The note is written from workshop practice rather than from a sales brochure.
Are your cranes built to FEM and DIN standards?
Yes. Sinomac designs to FEM, DIN and ISO. Duty group is set from your real lifting cycle, so the classification on the nameplate matches how the crane is actually used.
Can you supply a crane kit instead of a complete crane?
Yes. Sinomac supplies hoist, end carriages, drives, control system and anti-sway as a kit, and provides free production drawings of the girder for regional partners and clients buying kits, which lowers shipping cost.
How fast do you quote?
Sinomac provides a crane quotation within 24 hours and a CAD drawing within 48 hours.
What documentation ships with the crane?
Equipment qualification certificate, main parts qualification certificates, electrical drawing diagram, installation operation and maintenance manual, and installation and commissioning instructions.
Question About Your Crane
Send a photo of the nameplate and the part. An engineer will reply.