China OEM Zinc Alloy Die Cast Double Pulley with Nylon Wheel/Swivel Eye pulley block

Product Description

Product Description
Zinc Alloy Die Cast Pulley Single/Double Wheel Rigid Eye with Steel wheel
Zinc Alloy Die Cast Pulley Single/Double Wheel Rigid Eye with Nylon wheel
Zinc Alloy Die Cast Pulley Single/Double Wheel Swivel Eye with Steel wheel
Zinc Alloy Die Cast Pulley Single/Double Wheel Swivel Eye with Nylon wheel

Technical Data and Dimensions
Zinc Alloy Die Cast Pulley Single Wheel with Nylon wheel

Size Total Length Eye Dia. Weight Each
(mm.) (mm.) (mm.) (Kg.)
15 49 10 0.571 
20 59 11 0.036 
25 70 12 0.052 
30 76 13 0.077 
40 90 16 0.110 
50 110 17 0.175 
65 133 18 0.360 

Zinc Alloy Die Cast Pulley Double Wheel with Nylon wheel

Size Total Length Eye Dia. Weight Each
(mm.) (mm.) (mm.) (Kg.)
15 49 10 0.034 
20 58 11 0.055 
25 70 12 0.072 
30 80 13 0.115 
40 90 16 0.190 
50 100 17 0.293 

Zinc Alloy Die Cast Pulley Double Wheel with Steel wheel

Size (D) Rope Dia.  Weight Each
(in.) (in.) (Kg.)
1/2 5/32 0.571 
3/4 3/16 0.040 
1 1/4 0.073 
1-1/4 5/16 0.126 
1-1/2 3/8 0.142 
2 7/16 0.283 

Zinc Alloy Die Cast Pulley Single Wheel with Steel wheel

Size (D) Rope Dia.  Weight Each
(in.) (in.) (Kg.)
1/2 5/32 0.571 
3/4 3/16 0.040 
1 1/4 0.073 
1-1/4 5/16 0.126 
1-1/2 3/8 0.142 
2 7/16 0.283 

*Other main type of Blocks are in following picture. You can contact our sales for products details.

BUSINESS FAQ: 

1) What is the MIN order quantity ?
USD 1580 in total value, usually 1 ton.

2)What is the delivery time?
15 -20 days since received the deposit.

3)What is the Payment term?
A. 30% TT deposit, the balance against copy B/L.
B. Irrevocable L/C at sight.
C. Other payment can be negotiated.

4)Could I get free samples before first cooperation? 
Yes, of course! But the buyer need to afford express fee, which is returnable once we build cooperation.

5)What's the packing method?
Packing methods for most of the products are in the cartons or polywood case.Special packages are available upon
customers'need. You can contact us for special or more detailed packages.

Why choose CHINAMFG (lift-sunny )

1). "ONE-STOP" Rigging and Marine supplier:  a great variety of rigging and marine products including 1,000 kinds
of products, 3,000 kinds of specifications, which are widely used in Construction,Transportation, Forestry, Oil&Gas,
Agriculture, Utilities, Aerospace, Marine, Manufacturing, Mining, Fishing and Government. 

2). Old history: since 1986, more than 30 years focus on rigging, marine and rubber products.
The founding principles of the company have never changed-business integrity,quality is everything.

3). Strong development capabilities: processing with Given materials and samples at own
module workshop, save cost, finish customers special and big order rapidly.

4). 4 round Superior Quality Control with 10 years records and zero complaint: 
4 round quality inspection including raw materials, production, finished products, final package, have a thorough
quality control system, professional staff, every step is under strict inspection, to insure 
that every product is perfect.For the individual and mass production part, the records which include the
sub-contractor records will be retained at least 10 years since the record has been made,
(e.g. inspection/test record, control plan, etc)
In the past years,the complaint rate of product quality from more than 50 countries customers is zero.

5). Certificate of Quality: ISO9001, CE, GS, CCS, ABS, BV, KR, REACH, etc. Photos as below.

6). Reasonable and Competitive price compared with others with same quality.

7). Fast Delivery time: within 20 days for most products.

8). Comfortable and topping after-sales service with 99.8% satisfaction rate for more than
50 countries and regions: We will send you "Customer Satisfaction Inventory" after you receive our first order.
If you are not satisfied with our quality,price or service, please list your comments or suggestions, the next day, our
senior manager will personally call you or email you, apologize to you, to solve your problem.Because day after day,
year after year of self-correction, our current customer satisfaction rate has reached 99.8%. we are very proud of this.
Of course, we still need to continue to work hard.Our main marketing as below picture.

9). Great Supports for marketing. With us, your money and business in safe.If you want to be
No.1 you should contact with us right now!

 

Type: Rigid/Swivel Eye Pulley, Shackle Block, Hook Block
Material: Zinc Alloy, Steel, Stainless Steel Available
Number of sheaves: 2
Control: Manual
Color: Nickle or Zinc Plated
Application: Double Beam Crane, Gantry Crane, Bridge Crane, Tower Crane, Single Grinder Crane, Lifting Platform, Small Crane, Industrial, Rigging, Fasteners
Customization:
Available

|

Customized Request

crane pulley

How do crane pulleys contribute to the overall efficiency and reliability of lifting equipment?

Crane pulleys play a crucial role in enhancing the overall efficiency and reliability of lifting equipment. Here's a detailed explanation:

Crane pulleys, also known as sheaves, are essential components of the lifting mechanism in cranes. They contribute to the efficiency and reliability of lifting equipment in several ways:

  • Mechanical Advantage: Crane pulleys provide a mechanical advantage that allows cranes to lift heavier loads with less effort. By incorporating multiple sheaves into the pulley system, the lifting capacity of the crane is significantly increased. The mechanical advantage gained through the pulley system reduces the force required by the crane's hoist or winch, making material handling operations more efficient and less demanding on the equipment.
  • Precise Load Control: Crane pulleys enable precise load control during lifting operations. The pulley system allows operators to make fine adjustments and achieve smooth movements, ensuring accurate positioning of the load. This level of control is crucial in various applications where precise load placement is required, such as construction, manufacturing, or delicate material handling. The ability to control loads precisely enhances efficiency and minimizes the risk of damage or accidents.
  • Load Distribution: Crane pulleys facilitate efficient load distribution across the crane's structure. The pulley system ensures that the load is evenly distributed, preventing excessive stress on specific components. Balanced load distribution enhances the crane's stability and structural integrity, reducing the risk of equipment failure or structural damage. By promoting even load distribution, crane pulleys contribute to the overall reliability and longevity of lifting equipment.
  • Flexibility in Lifting Heights: Crane pulleys offer flexibility in lifting heights. By incorporating multiple sheaves, the pulley system can alter the path of the wire rope, allowing cranes to reach greater heights. This flexibility is especially valuable in construction projects or industrial settings where materials need to be lifted to various levels of a building or structure. The ability to reach higher elevations efficiently enhances the equipment's versatility and overall efficiency.
  • Reduced Operator Fatigue: Crane pulleys help reduce operator fatigue during material handling operations. The mechanical advantage provided by the pulley system reduces the physical effort required by the operator to lift and control heavy loads. This relieves the operator of excessive strain and allows them to focus on precise load control and maneuvering. By minimizing operator fatigue, crane pulleys contribute to increased productivity and safer working conditions.
  • Safety Enhancements: Crane pulleys often incorporate safety features that enhance the reliability and safety of lifting equipment. These features can include load limiters, anti-sway systems, or emergency stop mechanisms. Load limiters prevent the crane from exceeding its maximum load capacity, protecting the equipment and preventing accidents. Anti-sway systems minimize load swing, improving stability and load control. Emergency stop mechanisms allow for immediate cessation of operations in case of emergencies or hazardous situations. The inclusion of these safety enhancements ensures the reliability and safe operation of lifting equipment.

In summary, crane pulleys contribute significantly to the overall efficiency and reliability of lifting equipment. They provide a mechanical advantage, enabling cranes to lift heavier loads with less effort. The pulley system allows for precise load control, efficient load distribution, and flexibility in lifting heights. By reducing operator fatigue and incorporating safety features, crane pulleys enhance productivity, minimize the risk of accidents, and ensure the reliability and longevity of lifting equipment.

crane pulley

How do crane pulleys contribute to the safety and precision of lifting operations?

Crane pulleys play a crucial role in ensuring the safety and precision of lifting operations. Here's a detailed explanation:

Crane pulleys are integral components of the lifting mechanism in cranes. They are designed to guide and support the cables or ropes used for lifting heavy loads. The proper functioning of crane pulleys is essential for safe and precise lifting operations. Here are the ways in which crane pulleys contribute to safety and precision:

  • Load Distribution: Crane pulleys help distribute the load evenly across multiple strands of cable or rope. By spreading the load, pulleys reduce stress on individual strands, minimizing the risk of overloading and potential failure. Even load distribution ensures that the weight is evenly supported, reducing the likelihood of sudden shifts or imbalances during lifting.
  • Mechanical Advantage: Crane pulleys provide a mechanical advantage that enables the lifting of heavy loads with less effort. The pulleys increase the effective force applied to the load, making it easier for the crane to lift and move heavy objects. This mechanical advantage allows for precise control and reduces the strain on the crane's lifting mechanism, promoting safe and controlled lifting operations.
  • Reduced Friction: Pulleys are designed with grooves that guide the cable or rope, reducing friction during lifting operations. The reduced friction minimizes wear on the cable and the pulley itself, ensuring smooth movement and preventing overheating. By reducing friction, pulleys contribute to the efficiency of lifting operations and help maintain the integrity of the lifting system.
  • Controlled Movement: Crane pulleys facilitate controlled movement of the load. By adjusting the position of the pulleys, operators can change the direction and speed of the load's movement. This allows for precise positioning, alignment, and placement of the load, even in confined or challenging spaces. The controlled movement provided by pulleys enhances safety by minimizing the risk of collisions, accidents, or damage to the load or surrounding structures.
  • Overload Protection: In some crane pulley systems, load limiters or overload protection devices can be integrated. These devices monitor the load being lifted and provide warnings or automatically stop the lifting operation if the load exceeds the crane's capacity. By incorporating such safety features, crane pulleys contribute to preventing overloading accidents and protecting the crane and its surrounding environment.
  • Operator Visibility: Crane pulleys, especially those used in overhead cranes or gantry cranes, are often positioned at elevated heights. This placement allows operators to have better visibility of the load and the lifting area. Improved visibility enhances safety by enabling operators to monitor the lifting operation closely, detect any potential hazards, and make necessary adjustments or corrections in real-time.

In summary, crane pulleys play a vital role in ensuring the safety and precision of lifting operations. They contribute to even load distribution, provide a mechanical advantage, reduce friction, enable controlled movement, incorporate overload protection, and enhance operator visibility. By functioning effectively, crane pulleys promote safe lifting practices, minimize risks, and facilitate precise and efficient load handling.

crane pulley

How does a crane pulley assist in the safe and efficient lifting of heavy loads?

A crane pulley plays a crucial role in ensuring the safe and efficient lifting of heavy loads. Here's a detailed explanation of how a crane pulley assists in achieving these objectives:

Mechanical Advantage:

A crane pulley provides a mechanical advantage that allows operators to lift heavy loads with less effort. By utilizing the principle of leverage, a pulley system multiplies the force applied to the lifting cable or rope. As the rope passes through the grooved rim of the pulley, it changes the direction of the force and distributes the load across multiple strands. This mechanical advantage reduces the amount of force required by the operator to lift the load, making the lifting process more manageable and efficient.

Load Distribution:

A crane pulley assists in distributing the weight of the load evenly across the lifting cable or rope. The grooved rim of the pulley ensures that the cable or rope sits securely in place, preventing slippage during lifting operations. This even distribution of the load helps to maintain stability and balance, minimizing the risk of accidents or imbalances that could cause the load to shift or fall.

Controlled Movement:

Crane pulleys enable controlled movement of heavy loads during lifting operations. The pulley system allows operators to adjust the speed and direction of the lifting process by manipulating the tension in the lifting cable or rope. This control is crucial for precise positioning of the load, especially in scenarios where the load needs to be placed accurately or maneuvered through tight spaces. The ability to control the movement of the load enhances safety and prevents damage to the load or surrounding structures.

Reduction of Strain and Fatigue:

By utilizing a crane pulley, the strain and fatigue on the operator are significantly reduced. The mechanical advantage provided by the pulley system lessens the physical effort required to lift heavy loads. This reduction in strain and fatigue not only improves operator comfort but also enhances their ability to focus on the lifting operation, reducing the risk of human error and increasing overall safety.

Load Capacity and Safety Factors:

Crane pulleys are designed to handle specific load capacities and incorporate safety factors to ensure safe lifting operations. The load capacity of a crane pulley is determined by factors such as its size, material strength, and construction. Safety factors are applied to account for unexpected load variations or dynamic forces that may occur during lifting operations. By adhering to load capacity and safety standards, crane pulleys provide a reliable and secure lifting mechanism for heavy loads.

Integration with Crane Systems:

Crane pulleys are often integrated into larger crane systems, such as overhead cranes or mobile cranes. These systems provide additional features and controls to enhance the safe and efficient lifting of heavy loads. The integration allows for precise positioning, smooth movement, and coordinated operations, ensuring optimal performance and safety during lifting operations.

In summary, a crane pulley assists in the safe and efficient lifting of heavy loads by providing a mechanical advantage, distributing the load evenly, enabling controlled movement, reducing strain and fatigue on operators, adhering to load capacity and safety factors, and integrating with crane systems. These features and functionalities contribute to smoother and safer lifting operations, minimizing the risk of accidents, improving productivity, and optimizing the overall efficiency of heavy load handling.

China OEM Zinc Alloy Die Cast Double Pulley with Nylon Wheel/Swivel Eye   pulley block	China OEM Zinc Alloy Die Cast Double Pulley with Nylon Wheel/Swivel Eye   pulley block
editor by CX

2023-12-12

Crane pulley

As one of the crane pulley manufacturers, suppliers, and exporters of mechanical products, We offer crane pulley and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of crane pulley.