Product Description
Nylon Sheave Wire Lifting Pulley Block
This aluminum alloy and MC nylon open type hoisting tackle with hook possesses light dead weight, which is equipped with the aluminum alloy side panel and the MC nylon sheave. This single Sheave Pulley block is the open type. Our product can be used for lifting heavy objects and other operations in the line construction.
Main Specifications
| Item Number | Model | Number of Sheave | Rated Load (kN) | Outer Diameter of Sheave ×Sheave Width (mm) | Rope Diameter (mm) | Weight (kg) | Hoisting Point Type | ||
| 11101 | QHN1-1K | 1 | 10 | Φ100×31 | Φ7.7 | 1.8 | G | H | |
| 11102 | QHN1-2 | 2 | 10 | Φ80×27 | Φ6 | 1.8 | G | H | |
| 11103 | QHN1-3 | 3 | 10 | Φ80×27 | Φ6 | 2.1 | G | H | |
| 11111 | QHN2-1K | 1 | 20 | Φ120×35 | Φ9.3 | 2.2 | G | H | B |
| 11112 | QHN2-2 | 2 | 20 | Φ100×31 | Φ7.7 | 2.6 | G | H | |
| 11113 | QHN2-3 | 3 | 20 | Φ100×31 | Φ7.7 | 3.7 | G | H | |
| 11121 | QHN3-1K | 1 | 30 | Φ150×39 | Φ11 | 3.4 | G | H | B |
| 11122 | QHN3-2 | 2 | 30 | Φ120×35 | Φ9.3 | 4.5 | G | H | |
| 11123 | QHN3-3 | 3 | 30 | Φ100×31 | Φ7.7 | 4.6 | G | H | |
| 11131 | QHN5-1K | 1 | 50 | Φ166×40 | Φ13 | 5.2 | G | H | B |
| 11133 | QHN5-2 | 2 | 50 | Φ150×39 | Φ11 | 5.5 | G | H | |
| 11134 | QHN5-3 | 3 | 50 | Φ120×35 | Φ9.3 | 5.1 | G | H | |
| 11141 | QHN8-1K | 1 | 80 | Φ205×49 | Φ17 | 7.2 | G | H | B |
| 11142 | QHN8-2 | 2 | 80 | Φ166×40 | Φ13 | 8.3 | G | H | |
| 11143 | QHN8-3 | 3 | 80 | Φ150×39 | Φ11 | 7.9 | G | H | |
| 11151 | QHN10-1K | 1 | 100 | Φ246×60 | Φ18.5 | 11.4 | G | B | |
| 11152 | QHN10-2 | 2 | 100 | Φ166×40 | Φ13 | 10.2 | H | ||
| 11153 | QHN10-3 | 3 | 100 | Φ150×39 | Φ11 | 11.7 | H | ||
| 11161 | QHN15-1K | 1 | 150 | Φ280×65 | Φ21.5 | 12.1 | B | ||
| 11162 | QHN15-2 | 2 | 150 | Φ205×49 | Φ17 | 12.8 | H | ||
| 11163 | QHN15-3 | 3 | 150 | Φ166×40 | Φ13 | 11.8 | H | ||
| 11164 | QHN15-4 | 4 | 150 | Φ150×39 | Φ11 | 13.9 | H | ||
Uses: Applied in line construction for lifting weight.
Features: Adopt aluminum alloy side panel and MC nylon sheave.so it is light in weight.the single sheave hoisting tackle is open style.
To support the Transmission work, CHINAMFG Power has Tubular Gin Pole, Hydraulic cable puller, wire rope pulley block, hoisting tackle,
Wire rope gripper
, Cable reel spool and stand- all are OEM and professionally produced per ISO 9001:2008, which are being sold to over more than 50 countries in the world. Some items like emergency restoration tower and crossing structure, we can customized, and the safety tools and accessories, are not demanded the MOQ. You can freely help you out either Tech issue or Products requirements. Pls contact us. Thanks.
1. Training and services.
CHINAMFG is a company specializing in the development, design and manufacture of electrical construction equipment and tools. We not only manufacture and sell international standard products, OEM and custom products, but also provide quality tracking and service monitoring.
2. How about the quality of your products?
Our products are manufactured in strict accordance with national and international standards, and each product is tested before delivery. If you would like to view our quality certification and various test reports, please consult us.
3. Why do you choose us?
Because we can provide you with excellent service, quality and reasonable price. In addition, we can also provide smooth delivery of goods, excellent customer solutions.
4. Customer inquiry.
If there is an emergency, customers can also use online contact methods (online Chat, Skype, WhatsApp, ) for faster and better communication. Any enquiry will be answered within 12 working hours.
5. How to obtain samples?
We can provide free samples to the buyer for testing, but the buyer needs to pay the freight. Existing samples take 2-3 days. If there is no stock, we will advise the delivery date.
6. How about packing and shipping?
All goods will be packed in plywood boxes for safe, long haul transport. Support EXW, FOB, CIF, CFR terms.
Required documents such as packing list, commercial invoice, bill of lading, air waybill, CO, Form E, Form F etc will be provided.
Note: If you do not find the product you need, please feel free to contact us. We will provide the best quotation as soon as we verify your requirements.
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| After-sales Service: | 1 Year |
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| Warranty: | 1 Year |
| Type: | Ring |
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Shipping Cost:
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about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How do sheave pulleys contribute to the functioning of garage door systems?
Sheave pulleys play a crucial role in the operation of garage door systems, enabling the smooth and efficient movement of the door panels. Here is a detailed explanation of how sheave pulleys contribute to the functioning of these systems:
In garage door systems, sheave pulleys are typically used in conjunction with cables to support and guide the door panels as they open and close. The integration of sheave pulleys in garage door systems involves the following steps:
1. Track and Cable Configuration: The garage door system includes horizontal tracks mounted on the walls and vertical tracks on either side of the door opening. Cables are attached to the bottom of the door panels and run through the vertical tracks.
2. Sheave Pulley Mounting: Sheave pulleys are mounted near the top of the vertical tracks, usually at the ceiling level. The pulleys are securely attached to brackets or frames that are affixed to the ceiling or supporting structures. The mounting arrangement ensures proper alignment and stability of the pulleys.
3. Cable Routing: The cables from the bottom of the door panels are threaded through the sheave pulleys. The pulleys guide the cables along the vertical tracks, ensuring smooth movement and preventing the cables from tangling or binding.
4. Torsion Spring System: Garage doors often utilize a torsion spring system for counterbalancing the weight of the door panels. The cables attached to the bottom of the door panels are connected to the torsion spring system, which is mounted on a torsion shaft above the door opening.
5. Tension Adjustment: The tension in the cables is adjusted to achieve the proper balance and smooth operation of the garage door. This is typically done by adjusting the tension on the torsion spring system, which affects the tension in the cables connected to the bottom of the door panels.
6. Opening and Closing: When the garage door is operated, either manually or with the assistance of an electric opener, the cables move through the sheave pulleys, guided by the tracks. The sheave pulleys ensure that the cables remain properly aligned and under tension, allowing the door panels to move smoothly and evenly.
7. Safety Features: Garage door systems are equipped with various safety features to prevent accidents or injuries. These may include sensors that detect obstructions in the path of the door panels and automatically stop or reverse the door’s movement. Sheave pulleys indirectly contribute to the effectiveness of these safety features by ensuring the proper operation and alignment of the cables and door panels.
Regular maintenance and inspection of the sheave pulleys, cables, tracks, and other components are essential to ensure the continued safe and reliable operation of garage door systems. This includes lubrication of the pulleys, checking for any signs of wear or damage, and making necessary adjustments or replacements to maintain optimal functionality.
What advantages do sheave pulleys offer for efficient load-bearing and cable routing?
Sheave pulleys offer several advantages for efficient load-bearing and cable routing in various applications. Here is a detailed explanation of the advantages provided by sheave pulleys:
1. Load Distribution: Sheave pulleys help distribute loads evenly across cables or ropes. By guiding the cables through the grooves of the pulley, the load is spread across multiple points of contact. This load distribution reduces stress on individual cables, preventing overloading and potential failure. It ensures that the load is efficiently carried and supported, enhancing the overall load-bearing capacity of the system.
2. Reduced Friction: Sheave pulleys minimize friction between cables and the surrounding structure. The smooth grooves of the pulley allow cables to move freely without excessive rubbing or snagging. This reduced friction reduces wear and tear on the cables, extending their lifespan and maintaining their strength and integrity. It also reduces the power required to move the cables, resulting in more efficient operation and energy savings.
3. Improved Cable Routing: Sheave pulleys facilitate efficient cable routing by guiding cables along a specific path. The pulleys ensure that the cables follow the desired route, preventing tangling, entanglement, or interference with other components. This organized and controlled cable routing improves the overall system efficiency, reduces the risk of damage or accidents, and enhances the ease of maintenance and troubleshooting.
4. Directional Changes: Sheave pulleys allow for smooth directional changes in cable systems. By incorporating pulleys at strategic points, cables can be redirected without abrupt or sharp turns. This gradual change in direction minimizes stress and strain on the cables, preventing kinks and bends that could weaken the cables or impede their movement. The ability to smoothly navigate directional changes ensures efficient cable routing and reliable operation of the system.
5. Adjustability: Sheave pulleys offer adjustability for accommodating different cable sizes and tensions. The diameter and configuration of the pulleys can be selected based on the specific requirements of the cables and the load-bearing capacity needed. This adjustability allows for the use of various cable types and sizes in the same system, providing flexibility and adaptability. It also enables fine-tuning of cable tension, ensuring optimal performance and minimizing slack or excessive tension in the cables.
6. Multiple Cable Support: Sheave pulleys can support multiple cables simultaneously. In applications where multiple cables or ropes need to be routed and supported, sheave pulleys allow for efficient handling of multiple lines. The grooves in the pulley can accommodate multiple cables, ensuring that each cable is properly guided and supported. This capability is particularly useful in scenarios such as lifting systems, cranes, and rigging applications.
7. Noise Reduction: Sheave pulleys help reduce noise generated by cable movement. The smooth operation of the cables within the pulley grooves minimizes vibrations and rattling noises that can occur when cables come into contact with other surfaces. This noise reduction is especially beneficial in applications where quiet operation is desired, such as in theater rigging systems or residential elevators.
Overall, sheave pulleys offer numerous advantages for efficient load-bearing and cable routing. They ensure load distribution, reduce friction, improve cable routing, facilitate directional changes, provide adjustability, support multiple cables, and contribute to noise reduction. These advantages enhance the performance, reliability, and longevity of systems that rely on cables or ropes for load-bearing and cable routing purposes.
What is a sheave pulley, and how does it differ from other types of pulleys?
A sheave pulley, also known as a belt pulley or a rope pulley, is a specific type of pulley used in various mechanical systems. Here is a detailed explanation of what a sheave pulley is and how it differs from other types of pulleys:
A sheave pulley is a grooved wheel or disk with a central axle or hub. It is designed to guide and support a belt, rope, or cable, which passes through the groove or groove(s) on the outer circumference of the pulley. The primary function of a sheave pulley is to transmit force and motion between rotating shafts or to change the direction or speed of rotational motion.
One of the key differences between a sheave pulley and other types of pulleys is the presence of a groove or grooves on the outer circumference. The groove(s) accommodates the belt, rope, or cable, allowing it to wrap around the sheave pulley securely. This design feature ensures proper alignment and grip between the pulley and the belt or rope, preventing slippage and enabling efficient power transmission.
Another distinguishing characteristic of sheave pulleys is their specific application in belt or rope-driven systems. Sheave pulleys are commonly used in various industries and applications, such as conveyor systems, cranes, elevators, and other machinery that rely on belts, ropes, or cables for power transmission or lifting operations.
Here are a few key differences between sheave pulleys and other types of pulleys:
- Grooved Design: Sheave pulleys have a grooved outer circumference to accommodate belts, ropes, or cables, while other pulleys may have a smooth surface or different types of groove patterns depending on their specific applications.
- Belt or Rope Transmission: Sheave pulleys are primarily used in belt or rope-driven systems, where the belt or rope is wrapped around the pulley to transmit power or facilitate lifting. Other pulleys may be used in different transmission systems, such as chain drives or direct mechanical linkages.
- Load Distribution: Sheave pulleys are designed to distribute the load evenly across the belt or rope, helping to prevent excessive stress and wear. Other pulleys may have different load distribution mechanisms based on their specific applications and requirements.
- Size and Configuration: Sheave pulleys come in various sizes and configurations, allowing for customization based on the specific system requirements. Other pulleys may have different size ranges and configurations depending on their intended use.
- Application Specificity: Sheave pulleys are commonly used in industries and applications that require belt or rope-driven systems, such as conveyor systems and lifting equipment. Other types of pulleys may be designed for different applications, such as guiding wires, cables, or chains in specific machinery or equipment.
In summary, a sheave pulley is a grooved wheel or disk used to guide and support belts, ropes, or cables in belt or rope-driven systems. It differs from other types of pulleys in terms of its grooved design, application in belt or rope transmission systems, load distribution mechanism, size and configuration options, and application specificity. Understanding these differences helps in selecting the appropriate pulley for specific mechanical systems and ensuring efficient power transmission or lifting operations.
editor by CX
2024-04-17