China Standard China Factory Manufacturer Directly Quality Heavy Duty Short Link CZPT Alloy Steel Industrial Lifting Sling Black Load Chain for Hoist

Product Description

China Factory Manufacturer Directly Quality Heavy Duty Short Link CZPT Alloy Steel Industrial Lifting Sling Black Load Chain For Hoist

Product Description



Grade80 Alloy Chain
(For overhead lifting applications, only alloy chain should be used)  
Nominal Chain Size Material   Diameter Working   Load Limit(Max.) Proof   Test(Min.) Minimum   Breaking Force Inside   Length(Max.) Inside Width Range
in mm in mm Ibs kg Ibs kN Ibs kN in mm in mm
7/32 5.5 0.217 5.5 2,100 970 4,200 19 8,400 38 0.69 17.6 0.281-0.325 7.14-8.25
9/32 7 0.276 7 3,500 1,570 7,000 30.8 14,000 61.6 0.9 22.9 0.375-0.430 9.53-10.92
5/16 8 0.315 8 4,500 2,000 9,000 40.3 18,000 80.6 1.04 26.4 0.430-0.500 10.92-12.70
3/8 10 0.394 10 7,100 3,200 14,200 63 28,400 126 1.26 32 0.512-0.600 13.00-15.20
1/2 13 0.512 13 12,000 5,400 24,000 107 48,000 214 1.64 41.6 0.688-0.768 17.48-19.50
5/8 16 0.63 16 18,000 8,200 36,200 161 72,400 322 2.02 51.2 0.812-0.945 20.63-24.00
3/4 20 0.787 20 28,300 12,800 56,600 252 113,200 504 2.52 64 0.984-1.180 25.00-30.00
7/8 22 0.866 22 34,200 15,500 68,400 305 136,800 610 2.77 70.4 1.080-1.300 27.50-33.00
1 26 1.02 26 47,700 21,600 95,400 425 190,800 850 3.28 83.2 1.280-1.540 32.50-39.00
1.1/4 32 1.26 32 72,300 32,800 144,600 644 289,200 1288 4.03 102.4 1.580-1.890 40.00-48.00


Grade 80 Chain can be used as assembly with lifting hook and ring to lift heavy weight.

All chain manufactured to NACM are proof load tested at point of manufacture.

Suitable for operating temperature range -40° – 200°C at full WLL.

Product Features:

• Material: high-quality alloy steel.

• Surface treatment: self-color, polishing, black, plastic coating, hot-dip galvanized. etc.

• Safety Factor 4:1.

• Product marking: CZPT or required by client.

• We also can make the non-standard chain according to the clients’requirements.




WORKING LOAD LIMIT designates the maximum stress in pounds which should ever be applied to chain. This refers also to chain in the best condition, when new, and when the load is applied uniformly to a straight, untwisted length of chain. WARNING: WORK LOAD LIMIT MUST NOT BE EXCEEDED.

BREAK TEST LOAD is the minimum load in pounds at which new chain has been found by experience to break, under tests in which the load is applied in direct tension to a straight length of chain with a uniform rate of speed on a standard chain testing machine.


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Packaging & Shipping


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Company Profile


HangZhou CZPT Co., Ltd. is located in HangZhou, 1 of the largest port city in China. As China leading manufacturer for rigging, lifting, and material handling applications, CZPT delivers a diverse portfolio of products engineered to exceed the toughest demands of any industry, construction, cargo handling, towing, marine, and transportation.

Our products include welded chain, CZPT and G100 lifting chain & accessories, hooks, shackles, hoist rings, master links, chain slings, turnbuckles, snatch blocks, wire rope & fittings and a host of other custom engineered solutions: the most comprehensive portfolio in the industry.

Powerful Machinery has 20 years of export experience, with customers in dozens of countries around the world.

At Powerful Machinery, We have a team of professionals working together to provide our customers with the best products and services. When you choose Powerful Machinery, you are guaranteed more than superior products-you are guaranteed the quality assurance that comes with a customer service team committed to exceeding end user expectations.At Powerful Machinery, it’s not just about lifting products; it’s about working with a trusted partner who is invested in your success.



1. Where is your factory located?

Our factory is located at #37, Wenhua Road, Xihu (West Lake) Dis., HangZhou City, ZheJiang Province, China. 
You’re welcomed to visit us any time for future cooperation.

2. What products do you supply?  

As mentioned above, HangZhou CZPT is capable of supplying:
♦ all kinds of marine supplies 
♦ chains
♦ rigging hardwares
♦ fasteners
♦ and related hardwares

3. Do you produce them all?

We produce all kinds of chains in our factory, other products in our partner factories. By establishing cooperation agreements & capital injection, we obtained a wide & CZPT supply chain to meet your demands.

4. How do you control quality? 

By setting up quality control points and inspecting at each production process with strict standards, the defective products will be eliminated before packaging and delivery. For partner factories, we use a comprehensive system of quality standards to evaluate the 
production line. Also our professional QC team will implement the onsite check and finish product check before delivery.

5. Why are you more trustworthy than the other factories? 

Quick Response: 
We feedback your questions immediately 24 hours a day, 7 days every week.

Competitive Price:
We can provide a more competitive price based on the same quality level by more efficient management in every process.

One-stop Solution:
Just say what you need, and we’ll figure out a one-stop solution for your business to save your time and effort.

6.  How do I pay? 

We accept 30% payment in advance & 70% before shipment for the first cooperation, either by T/T or L/C.

7. How do I receive the goods? 

With our professional transport agents, we are capable of delivery products to most ports all over the world. Door-to-door service is also supported.

FOB, C&F, CIF are most commonly used trade terms.


Usage: Lifting Chain
Material: Alloy
Surface Treatment: Black Paint
Feature: Heat Resistant
Chain Size: 7/32"-1.1/4"
Structure: Welded Chain
US$ 10/Meter
1 Meter(Min.Order)

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Customized Request

heavy duty chain

What are the benefits of using a heavy-duty chain over other chain types?

Heavy-duty chains offer several advantages over other chain types, making them a preferred choice in various industrial applications:

  • High Strength: Heavy-duty chains are specifically designed to handle heavy loads and high forces, making them ideal for applications that require superior strength and durability.
  • Robustness: These chains are constructed from tough materials and undergo rigorous manufacturing processes, ensuring they can withstand harsh operating conditions and resist wear and tear over extended periods.
  • Reliability: The robust design and high-quality materials used in heavy-duty chains result in reliable performance, reducing the risk of chain failure and equipment downtime.
  • Wide Range of Sizes: Heavy-duty chains are available in various sizes and configurations to accommodate different applications and equipment requirements, offering versatility in their usage.
  • Compatibility: They can be used with a wide range of sprockets or pulleys, providing flexibility in designing mechanical systems and power transmission setups.
  • Reduced Stretch: Heavy-duty chains exhibit minimal elongation or stretch during operation, maintaining consistent power transmission and precise positioning in machinery.
  • Resistance to Corrosion: Some heavy-duty chains are made from corrosion-resistant materials, making them suitable for use in challenging environments such as marine, outdoor, or high-moisture settings.
  • Long Service Life: Due to their strength and durability, heavy-duty chains generally have a longer service life compared to standard chains, leading to cost savings over time.

Overall, heavy-duty chains are an excellent choice in demanding industrial applications where reliable performance, strength, and longevity are crucial factors. Their ability to handle heavy loads, resist wear and corrosion, and maintain precision makes them indispensable in various industries, including construction, mining, agriculture, marine, and material handling.

heavy duty chain

Can heavy-duty chains be used in railway maintenance and repair equipment?

Yes, heavy-duty chains can be used in railway maintenance and repair equipment. Railway maintenance and repair require robust and reliable equipment to handle the heavy loads and demanding conditions involved in servicing railway tracks, switches, and other infrastructure.

Heavy-duty chains are well-suited for such applications due to their high strength, durability, and resistance to wear and tear. They can efficiently handle the forces generated during railway maintenance tasks, such as lifting heavy sections of track, tensioning cables, or operating machinery used for track alignment.

In railway equipment, heavy-duty chains are often employed in conjunction with sprockets and other components to create a dependable and efficient power transmission system. The chains’ ability to transmit power smoothly and consistently makes them ideal for operating various railway maintenance and repair machines.

Furthermore, heavy-duty chains can withstand the challenges of working outdoors in different weather conditions and environments. They are designed to resist corrosion and are often equipped with special coatings or plating to enhance their durability.

When using heavy-duty chains in railway maintenance equipment, proper lubrication and maintenance are essential to ensure optimal performance and longevity. Regular inspections and replacement of worn or damaged components will help prevent unexpected failures and ensure safe and efficient operation.

In conclusion, heavy-duty chains are a reliable choice for powering and operating railway maintenance and repair equipment, contributing to the efficiency and effectiveness of railway maintenance tasks.

heavy duty chain

What are the maintenance requirements for heavy-duty chains?

Maintaining heavy-duty chains is crucial to ensure their longevity and reliable performance in various industrial applications. Here are some essential maintenance requirements:

  • Regular Inspection: Implement a regular inspection schedule to visually examine the chain for signs of wear, corrosion, or damage. Inspect the chain’s pins, rollers, and links for any abnormalities.
  • Lubrication: Proper lubrication is essential to reduce friction and wear between chain components. Use the appropriate lubricant recommended by the chain manufacturer for the specific application and operating conditions.
  • Tension Adjustment: Maintain the correct tension in the chain to prevent excessive slack or tension, which can lead to premature wear or chain failure.
  • Cleaning: Regularly clean the chain to remove dirt, debris, and contaminants that can contribute to wear and corrosion. Use appropriate cleaning agents that won’t damage the chain’s surface or coating.
  • Replacement of Worn Components: If any part of the chain, such as pins, rollers, or links, shows significant wear or damage, replace those components promptly to avoid further damage to the chain and other equipment.
  • Environmental Considerations: Consider the environment in which the chain operates. In harsh conditions, such as dusty or corrosive environments, more frequent maintenance may be necessary.
  • Training and Handling: Ensure that personnel responsible for chain maintenance are properly trained in safe handling and maintenance procedures. Mishandling the chain during maintenance can lead to accidents and injuries.
  • Record-Keeping: Maintain a record of the chain’s maintenance history, including inspection dates, lubrication schedules, and any replacements or repairs performed.

Following a comprehensive maintenance program will help detect any issues early on, prevent chain failures, and extend the chain’s service life. Regular maintenance also contributes to the overall safety and reliability of the equipment in which the heavy-duty chain is used.

China Standard China Factory Manufacturer Directly Quality Heavy Duty Short Link CZPT Alloy Steel Industrial Lifting Sling Black Load Chain for Hoist  China Standard China Factory Manufacturer Directly Quality Heavy Duty Short Link CZPT Alloy Steel Industrial Lifting Sling Black Load Chain for Hoist
editor by CX 2023-08-04