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Lifting Crane Hook Block

Your Professional Lifting Crane Hook Block Supplier

Henan Zhongzao Industry Co., Ltd. has a registered capital of 10 million yuan and is located in Changyuan City, Henan Province. We are a professional manufacturer and seller of crane accessories. Our main products include crane spreaders, crane hook sets, pulley sets, and rolling pulleys.

Why choose us

Design and Requirements

Our technical performance parameters can meet your design needs. We can also manufacture products according to your design drawings.

Certification

We have obtained ISO9001, ISO14001, and ISO45001 certifications for our products, ensuring quality control, environmental management, and occupational health and safety.

Competitive Advantage

We have professional experience in sheave design and production, a strict quality control testing system, and offer 24-hour online service.

Technical Parameter of crane Bottom hooks

◆The hook grade and material
Hook grade		M		P		(S)	T	(V)
Hook No
1.6#-40#		Q345qD or 20Mn		Q345gD or DG20Mn		Q420qD or 35CrMo	35CrMo	34Cr2Ni 2Mo
50#-250#				Q420qD		35CrMo	34Cr2Ni2Mo	30Cr2Ni 2Mo
Standard: GB10051-2010 same as DIN15400
◆ Mechanical standard
Hook Grade	Carbon Steel					Alloy Steel
	Upper yield strength Mpa	lmpart energy Akv(ISO-V)/J				Upper yield strength Mpa	Mpart energy Akv(ISO-V)/J
		20℃		-20℃			20℃	-20℃
		Vertical	Cross	Vertical	Cross		Vertical	Cross
M	235	55	31	39	21	-		-
P	315						-	-
(S)	390					390	35	27
T	-	-				490	35	27
(V)						620	35	27

Features

Bottom Hook with Latch

The main hook component, painted in orange, with an integrated safety latch to secure the load.

01

Shackle

A structural component designed to connect the hook to the other parts.

02

Shackle Sleeve

A circular sleeve used to enhance the connection between the shackle and other parts, providing stability and reducing wear.

03

Bearing

A cylindrical bearing for smooth rotational movement of the hook.

04

Bottom Hook Guard

Two identical protective covers designed to shield the hook assembly and bearing from external impacts or wear.

05

High Performance Bottom Blocks
Our bottom block hooks with manuel rotatable load hook are the result of 30 years experience in the range of production and progess for custom-specific solutions for bottom block hooks. We produce according to drawings, sketches or samples on specialized and high efficience CNC turning- and milling centre as well as flame cutter machine. Made in Europe.

With Mechanical Rotatable Hook
Rotating and positioning of charges by pushing the button, also optional with electrical coupling for the decoupling of the hook. Use of durable SEW gear motors.

Fitting Bottom Hook Blocks For Your Requests
Tailor-made solution for special application up to 500t load-bearing capacity, constructed and produced in‑house.

One of following cases happens, and discard as useless

Flaws.

Abrasion of dangerous fracture surface reaches 10% of full size.

Degree of opening adds to 15% than full size.

Torsional deformation exceeds 10°.

Dangerous fracture surface and hook neck have plastic deformation.

Lining of board hook abrades reaches 50% of full size, and should be discarded as useless.

Mandrel of board hook abrades reaches 50% of full size, and should be discarded as useless.

Options

Mechanical rotation stops

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Electrical limit switch rotation control

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Motor controls, single-speed

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Remote controls

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Collector rings for power below the hook

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Solid state soft start

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And more

Certificate

productcate-1-1

FAQ

Q: Are you trading company or manufacturer?

A: We are manufacturer.

Q: Do you have your own R&D team?

A: Yes, we can customize products as your requirements.

Q: How about the quality?

A: We have the best professional engineer and strict QA and QC system.

Q: Can we be your distributor?

A: We are looking for distributor and agent all over the world.

Q: How’s the package?

A: Normally are wooden box, but also we can pack it according to your requirements.

Q: How’s the delivery time?

A: It depends on the quantity you need, 1-25 days usually.

We're professional lifting crane hook block manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy high-grade lifting crane hook block made in China here from our factory.

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