China Custom Manual Block, Hand Vertical Hoist, Manual Chain Pulley pulley alternator

Product Description

Products Description

Manual Block, Hand Vertical Hoist, Manual Chain Pulley

To know us

Gostern Rigging Co., Ltd.Is established in the year of 2001 in China.The company covers an area of 33000 square meters, more than 600 employees.It is a specialized slings company which can design, manufacture and market.
Our main products are steel wire ropes, wire rope slings, synthetic fiber belt slings, nylon braided ropes, chain slings, steel plate lifting clamps, metallurgy clamps, hanging beams, rigging accessories and so on.The products are widely used in machinery, metallurgy, petroleum, chemical industrial, ports, shipbuilding and other fields.The perfect performance has been highly appraised by Users.

Specifications of our products 

HSZ crane hoist is Light in Weight

Compact structure

Forged drop Hook

Ratchet type brake warrants, safe and dependable operation

G80 chain Long life

Four times tested before shipping


Chains width(mm) weight/m(Kg) working load (KN) Test load(KN) Mini breaking load(KN)
(mm) (in) a b
6*18 6 7/32 7.5 21 0.79 10 20 45.2
8*24 8 5/16 10 28 1.38 15 30 80.4
10*30 10 3/8 12.5 35 2.2 25 50 125
12*36 12 7/16 15 42 3.1 35 70 181
13*39 13 1/2 16.3 46 3.8 40 80 214
14*42 14 1/2 18 49 4.13 50 100 250
15*46 15 3/5 20 52 5.17 55 110 280
16*48 16 5/8 20 56 5.63 60 120 320
18*54 18 23/32 23 63 6.85 80 160 410
19*57 19 3/4 23.7 63.2 7.7 90 180 450
20*60 20 3/4 25 70 8.6 100 200 500
22*66 22 7/8 28 77 10.2 120 240 610
24*72 24 15/16 32 82 12.78 140 280 720
26*78 26 1 35 91 14.87 170 340 850
30*90 30 13/16 38 105 19.6 220 440 1130
32*96 32 11/4 40 106 22.29 250 500 1286
34*126 34 13/8 42.5 109 22.7 363 870 1450

 Introduction of Manual Able , Hand Pulling Chain Block 
1.Capacity from 0.5t to 50t
2.Automatic double-pawl braking system
3.Gear: by adopting Japanese technology,they are innovated symmetrical arrayed high -speed synchronous gears, and are made from international standard gear steel.Compared with common gears ,they are more wearable and steadier, and more laborsaving.
4.Chain: adopts high strength chain and high precision welding technology,meet ISO3077-1984 international standard;fits for gusty overload work conditions;takes your hands a better feeling multi-angle operation.
5.Hook: made of high-class alloy steel,it has high strength and high security; by using new design,weight will never escape.
6.Components:main components are all made of high-class alloy steel,with high precision and security.
7. Framework: slight design and more beautiful; with less weight and smaller work area.
8. Plastic Plating: by adopting advanced plastic plating technology inside and outside,it looks like a new 1 after years of operation.      


What we achieved

we have achieved many awards both domestic and worldwide.Pls see our achievements as bellow :


Our Difference

- Leatime 8-15 days
- 3 years warranty
- Varied packaging choice
-we welcome you to have factory tour

- Long history in the sling area for almost 20 years
-sales volume increase to over 40 million per year


To contact us

Thank you for visiting our website, further questions please feel free to contact us. We will do our best to support you all the time. 



Q1. Can I have a sample order ? 
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. 

Q2. What about the lead time? 
A: Sample needs 2-5 days, mass production time needs 1-3 weeks for order quantity more than 1 container

Q3. Do you have any MOQ limit ? 
A: Low MOQ, 1PC for sample checking is available

Q4. How do you ship the goods and how long does it take to arrive? 
A: Train and sea shipping both can  provide. Shipping time depends on distance. 

Q5. How to proceed an order ? 
A: Firstly let us know your requirements or application. 
    Secondly We offer you the ideal products and price . 
    Thirdly we strike the deal if everything goes well. 
    Fourthly We arrange the production. 

Q6. Is it OK to print my logo and change package? 
A: Yes. Please inform us formally before our production.we need comfirm with you the design.

Q7: Do you offer guarantee for the products? 
A: Yes, we offer 3-5 years warranty to our products. 

Q8: How to deal with the faulty? 
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.1%. We will do several inspection before we send to you.

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Usage: Drag Chain, Link Chain
Material: Stainless steel
Surface Treatment: Oil Blooming
US$ 1/Piece
1 Piece(Min.Order)


Order Sample



Customized Request

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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

chain pulley

How do you select the right chain pulley configuration for a specific lifting task?

Selecting the right chain pulley configuration is essential to ensure safe and efficient lifting operations. Here are the key factors to consider when choosing the appropriate chain pulley for a specific lifting task:

1. Load Capacity:

Determine the maximum weight of the load that needs to be lifted. Choose a chain pulley with a load capacity that exceeds the weight of the load to ensure it can handle the required lifting capacity without straining the system.

2. Working Environment:

Consider the environmental conditions in which the chain pulley will be used. Factors such as temperature, humidity, corrosive substances, and exposure to dirt or dust can impact the performance and longevity of the pulley. Select a chain pulley that is suitable for the specific working environment to ensure optimal durability and reliability.

3. Lifting Height and Distance:

Determine the height to which the load needs to be lifted and the horizontal distance it needs to be moved. This information will help determine the required length of the chain and the number of sheaves needed in the pulley system to achieve the desired lifting height and reach.

4. Speed and Control:

Consider the desired lifting speed and level of control required for the lifting task. Depending on the application, you may need a chain pulley system with features that allow for precise load positioning and control. Additionally, consider whether a single-speed or multi-speed pulley system is needed to accommodate the specific lifting requirements.

5. Safety Considerations:

Ensure that the selected chain pulley configuration includes safety features such as load limiters, safety hooks with latches or swivels, and mechanisms to prevent overloading. These safety features are essential for safeguarding both the operators and the lifting operation.

6. Maintenance and Serviceability:

Consider the maintenance requirements and ease of serviceability of the chain pulley. Opt for a configuration that allows for convenient lubrication, inspection, and maintenance to ensure the longevity and optimal performance of the pulley system.

7. Compliance with Regulations:

Ensure that the selected chain pulley configuration complies with relevant industry standards and regulations. Adhering to safety standards and regulations is crucial to ensure the safe and legal operation of the lifting equipment.

By carefully considering these factors, you can select the right chain pulley configuration that aligns with the specific lifting task requirements, ensuring safe and efficient lifting operations.

chain pulley

How do chain pulleys contribute to the safe and efficient lifting of loads?

Chain pulleys play a crucial role in enabling safe and efficient lifting of loads in various applications. Here's how they contribute to achieving these objectives:

1. Mechanical Advantage:

Chain pulley systems provide a mechanical advantage that allows users to lift heavy loads with reduced effort. By utilizing multiple sheaves and chains, the applied force is distributed across the system, making it easier to lift heavier objects compared to direct manual lifting.

2. Load Control:

Chain pulleys offer precise and controlled load handling. Operators can easily regulate the movement and position of the load by manipulating the chain. This level of control is particularly important in delicate or complex lifting operations where accuracy and precision are required.

3. Versatility:

Chain pulleys are versatile tools that can be used in various lifting applications. They are suitable for both light and heavy loads, making them adaptable to different industries and scenarios. Chain pulleys can be found in construction sites, warehouses, manufacturing facilities, and many other environments where lifting is required.

4. Increased Safety:

Chain pulleys incorporate safety features that enhance the safe lifting of loads. These features may include load limiters, safety hooks with latches or swivels, and mechanisms to prevent overloading. Additionally, chain pulleys provide stability and minimize the risk of load slippage or sudden drops, ensuring the safety of both the operators and the surrounding environment.

5. Durability and Reliability:

Chain pulleys are designed to withstand heavy loads and frequent use. They are typically constructed with robust materials such as alloy steel or stainless steel, ensuring durability and longevity. When properly maintained and lubricated, chain pulleys can provide consistent and reliable performance over extended periods.

6. Efficiency and Productivity:

Using chain pulleys can significantly improve lifting efficiency and productivity. The mechanical advantage they offer allows for faster and more efficient lifting compared to manual methods. This can save time and labor, increasing overall productivity in lifting operations.

7. Cost-Effectiveness:

Chain pulleys provide a cost-effective solution for lifting heavy loads. They are generally more affordable than alternative lifting mechanisms, such as hydraulic or pneumatic systems. Additionally, their durability and low maintenance requirements contribute to long-term cost savings.

Overall, chain pulleys are essential tools that contribute to the safe and efficient lifting of loads. They provide mechanical advantage, precise load control, versatility, increased safety, durability, reliability, efficiency, and cost-effectiveness. With their wide range of benefits, chain pulleys are widely used in various industries to streamline lifting operations and ensure the well-being of operators and the integrity of the lifted loads.

chain pulley

How does a chain pulley assist in lifting heavy loads and materials?

A chain pulley, also known as a chain block or a chain hoist, plays a crucial role in lifting heavy loads and materials efficiently. Here's how it assists in the lifting process:

1. Mechanical Advantage:

One of the key functions of a chain pulley is to provide mechanical advantage. The arrangement of multiple pulleys in the chain pulley system increases the force applied to the load chain. This mechanical advantage allows operators to lift heavy loads with less effort, reducing the amount of force required.

2. Load Distribution:

A chain pulley evenly distributes the weight of the load across the load chain. This distribution helps prevent excessive stress on any particular point, ensuring a balanced and stable lifting operation. It also minimizes the risk of damage or deformation to the load.

3. Controlled Lifting Speed:

A chain pulley allows for controlled lifting speed during the lifting process. The operator can regulate the speed by adjusting the lifting mechanism, ensuring smooth and precise lifting operations. This control is crucial, especially when dealing with delicate or sensitive loads.

4. Versatile Lifting Solutions:

Chain pulleys offer versatility in lifting heavy loads and materials. They can be used in various orientations, such as vertical lifting, horizontal pulling, or angled pulling. This adaptability enables operators to tackle a wide range of lifting tasks and accommodate different work environments.

5. Portability and Ease of Installation:

Chain pulleys are designed to be portable and easy to install. They are often lightweight, making them convenient for transportation and maneuverability. The ease of installation allows for quick setup and efficient use in different work sites and settings.

6. Safety Features:

Chain pulleys are equipped with safety features to ensure secure lifting operations. These may include load limiters to prevent overloading, safety hooks with latches to securely attach the load, and brake systems to control the movement and prevent accidental lowering of the load. These features contribute to the safety of both the operator and the load being lifted.

7. Adaptability to Different Environments:

Chain pulleys are designed to operate in diverse environments. They can be used indoors or outdoors, in various weather conditions and temperature ranges. Their robust construction and corrosion-resistant materials make them suitable for rugged and demanding work environments.

Overall, a chain pulley assists in lifting heavy loads and materials by providing mechanical advantage, load distribution, controlled lifting speed, versatility, portability, and safety features. It is a reliable and efficient tool for a wide range of lifting and hoisting applications across different industries.

China Custom Manual Block, Hand Vertical Hoist, Manual Chain Pulley   pulley alternatorChina Custom Manual Block, Hand Vertical Hoist, Manual Chain Pulley   pulley alternator
editor by CX