China Best Sales Large Diameter Cable Pulley Wheels for Stringing Block belt pulley

Product Description

Large Diameter Cable Pulley Wheels for Stringing Block 

Overhead Line MC Nylon Aerial Cable Stringing Conductor Pulley Block With Hook Single Sheave More
 

508 mm stringing blocks are normally used for stringing medium size conductor (17-25 mm) in overhead transmission line construction. We have designed series of these stringing blocks for single conductor, 2 bundled conductor and 4 bundled conductors stringing. 1.Maximum suitable conductor ACSR400.Configuration: 2.Sheave dimension ( outside diameter× root diameter × sheave width) Φ508×Φ408×75 (mm) 3.Sheave dimension Φ508×Φ408×100 (mm) can be customized
Technical Data

Item number

Model

Number of sheaves

Rated load (kN)

Weight (kg)

 

Features

15711 SHD508  1 20 18

Rubber lined aluminium sheave

15712 SHS508  3 40 61

Middle : Cast steel sheave

Conductor : Rubber lined aluminium sheave

15713 SHW508  5 60 93
15714/15714A SHDN508  1 20 16

MC nylon sheave

15715 SHSLN508  3 40 47

 

Middle : MC nylon sheave

Conductor : Rubber lined aluminium sheave

15716 SHWLN508  5 60 79
15717/15717A SHSQN508  3 40 38

MC nylon sheave

15718/15718A SHWQN508  5 60 70

Uses: Apply to pull OPGW/ADSS

Feature: Put to use Φ660mm nylon sheave. The small optical cable groove under the groove.

Company Information:

HangZhou CHINAMFG Machine Co., Ltd.
Business Type :Manufacturer.Year Established :2011
Certificate :GS , CE , GB , ISO14001 , CCC.

Product Range :To support the Transmission work, our company has Tubular Gin Pole, Come Along Clamp, Wire Rope Pulley Block , Nylon Sheave Hoisting Tackle, Cable Mesh Sock Grip, Line Stringing Swivel- 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.

ONEREEL is specialized in the design and manufacture Steel Spools, Plastic Spools, Cable roller, Yarn Bobbin,  aluminum spool , Cable Reel Stand,  Sheave Pulley, Cable Conveyor, Hydraulic Puller Tensioner, Gin Poles, Cable Pulling Winch, Safety Tools, Wire Grip, Plastic Parts, and Pump in the industry since 1991. All of our customer spool and wire carrier are engineered and manufactured in our 120,000 square foot state-of-the-art manufacturing plant located in HangZhou, ZHangZhoug.
ONEREEL is specialized in the manufacture of reels for cables and electric wires, iron axles, disc spool for steel cables and various delivery reels. With strong technological capabilities and full series of production equipment. All of our products go through the dynamic and static balance tests. We have passed the quality system certification ISO9001:2000 to ensure the product quality. Following the standards of GB4004-83, JB/T8997, DIN46395 and DIN46397 in productions. 

Product Detail

 

Hot Product

 

Packaging & Transportation

 

Authoritative Certificate

 

 

FAQ

Q1: Can I get samples?
A: According to spool model and material, we will advise.
Q2: How long is the sample LEAD TIME? 
A: For existing samples, it takes 2-3 days. If no stock, we will advise lead time.
Q3: Can you develop new products?
A: Yes, we have new products developing ability and we are good at developing new mold.
Q4: How much is the freight charge?
A: It depends on spool package volume, if small quantity, volume and urgent goods, 
we may advise FEDEX or other couriers' charge for your check. 
If volume bigger and by seaway suitable, we provide FOB or CIF price to you.
Q5: What format of the file do you need if I want my own design?
A: We have our own mound workshop and can provide spool or other plastic product developing and injection service.
Q6: How about your service?
A: We have pre-sale service, in-sale service and after-sale service. As "Customer First" is the most important principle of company operation.

You can freely help you out either Tech issue or Products requirements. Pls contact with us. Thanks. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Type: Stringing Block
Certification: CE, CCC, ISO
Customized: Customized
Condition: New
Feature: Fire/Flame Retardant
Steel: High Rigidity
Samples:
US$ 150/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

cable pulley

What role do cable pulleys play in stage and theater rigging systems?

In stage and theater rigging systems, cable pulleys play a crucial role in achieving safe and efficient movement and positioning of stage elements such as scenery, lighting, and curtains. They are an integral part of the rigging infrastructure, providing support, control, and guidance for the cables used in these systems. Cable pulleys contribute to the overall functionality and precision of stage and theater rigging operations. Here is a detailed explanation of the role cable pulleys play in stage and theater rigging systems:

  • Lifting and Lowering: Cable pulleys are used to lift and lower various stage elements, including scenery pieces, lighting fixtures, and curtains. The cables are attached to these elements and routed through the pulleys. By raising or lowering the cables, the stage elements can be moved to the desired height or position. The cable pulleys guide and support the cables, ensuring smooth and controlled movement. They contribute to the precision and efficiency of lifting and lowering operations in stage and theater rigging systems.
  • Line Set Systems: Stage and theater rigging often employ line set systems, which consist of multiple cables and pulleys organized into sets. Each line set is used to control the movement of specific stage elements. Cable pulleys play a crucial role in line set systems by guiding and supporting the cables in their designated paths. The pulleys help distribute the load evenly across the cables and ensure synchronized movement of the line set. This allows for coordinated and precise positioning of stage elements.
  • Counterweight Systems: Many stage and theater rigging systems utilize counterweight systems to facilitate the lifting and lowering of stage elements. In these systems, counterweights are attached to the opposite end of the cables from the load. Cable pulleys guide the cables and counterweights, ensuring smooth and balanced operation. The pulleys help distribute the weight and tension of the counterweights, contributing to the overall stability and control of the system. Cable pulleys play a vital role in maintaining the integrity and safety of counterweight systems.
  • Directional Control: Cable pulleys enable directional control of the cables in stage and theater rigging systems. By positioning the pulleys in specific configurations, the path and direction of cable movement can be determined. This allows for precise positioning, raising, or lowering of stage elements in desired locations. Cable pulleys assist in achieving smooth and controlled movement along the intended paths, enhancing the overall precision and reliability of stage and theater rigging operations.
  • Load Distribution: Cable pulleys help distribute the load weight evenly across the cables in stage and theater rigging systems. This ensures that the load is properly supported and prevents excessive stress on individual cables. The pulleys guide the cables and help maintain balance and stability in the rigging system. By evenly distributing the load, cable pulleys contribute to the safe and reliable operation of stage and theater rigging systems.
  • Maintenance and Safety: Regular maintenance of cable pulleys is essential for the safe and efficient operation of stage and theater rigging systems. Inspections should be conducted to check for any signs of wear, damage, or misalignment. Lubrication should be applied to the pulleys as recommended by the manufacturer to ensure smooth operation and prevent corrosion. Proper tensioning of the cables should be maintained. Any issues with the cable pulleys or cables should be addressed promptly to avoid potential safety hazards.

In summary, cable pulleys play a vital role in stage and theater rigging systems. They contribute to the lifting and lowering of stage elements, operation of line set systems, functioning of counterweight systems, directional control of cables, load distribution, and overall safety. Proper maintenance of the cable pulleys is essential for ensuring their optimal performance and safety in stage and theater rigging operations.

cable pulley

What safety considerations should be kept in mind when using cable pulleys?

When using cable pulleys, it is essential to prioritize safety to prevent accidents, injuries, and equipment damage. Several safety considerations should be kept in mind to ensure the proper and safe use of cable pulleys. Here is a detailed explanation of the safety considerations associated with using cable pulleys:

  • Equipment Inspection: Before using cable pulleys, inspect them for any signs of damage, wear, or defects. Check for cracks, deformities, or loose components that could compromise their integrity and safe operation. Replace any damaged or worn pulleys to maintain optimal safety levels.
  • Load Capacity: Consider the load capacity of the cable pulleys and ensure it matches the anticipated load in the system. Exceeding the maximum load capacity can lead to pulley failure, cable slippage, or accidents. Refer to the manufacturer's specifications and guidelines to determine the appropriate load capacity for the pulleys used.
  • Proper Installation: Follow the manufacturer's instructions for the correct installation of cable pulleys. Ensure that the pulleys are securely mounted, aligned, and attached to the system. Improper installation can result in pulley misalignment, cable disengagement, or unexpected behavior, posing safety hazards.
  • Clearance and Accessibility: Provide adequate clearance around cable pulleys to allow for safe access during operation, maintenance, or troubleshooting. Avoid placing pulleys in confined spaces or areas where it may be difficult to reach or maneuver around them. Sufficient clearance ensures safe working conditions and minimizes the risk of accidents or injuries.
  • Protective Guards: Consider the use of protective guards or enclosures around cable pulleys, especially in areas where there is a risk of contact with moving parts. Guards can prevent accidental contact with rotating pulleys, reducing the likelihood of injuries or entanglements. Assess the specific application and implement appropriate safeguarding measures.
  • Tensioning Safety: Exercise caution when tensioning cables using pulleys. Follow the recommended tensioning procedures and use appropriate tools or equipment to avoid sudden releases of tension, which can cause cable whip or recoil. Always wear appropriate personal protective equipment (PPE) when performing tensioning operations.
  • Maintenance and Lubrication: Regularly inspect and maintain cable pulleys to ensure their proper functioning and safety. Clean pulleys from dirt, debris, or accumulated material that may interfere with their operation. Apply appropriate lubrication as per the manufacturer's recommendations to reduce friction and prevent premature wear.
  • Training and Awareness: Provide proper training and instruction to personnel involved in the use, maintenance, and inspection of cable pulleys. Promote awareness of safety procedures, potential hazards, and safe work practices. Ensure that employees understand the risks associated with cable pulleys and are familiar with the necessary safety protocols.
  • Emergency Preparedness: Establish emergency procedures and protocols in case of accidents, malfunctions, or cable-related incidents. Educate personnel on how to respond to emergencies, including cable entanglements, cable slippage, or pulley failures. Have appropriate emergency contact information readily available.

By considering these safety considerations when using cable pulleys, you can help mitigate risks and ensure a safe working environment. Prioritizing safety promotes accident prevention, protects personnel, and maintains the integrity and performance of the cable pulleys and associated systems.

cable pulley

What are the key components and design features of a cable pulley?

A cable pulley consists of several key components and design features that enable its proper functioning and efficient transmission of force. These components and features are carefully engineered to withstand load, reduce friction, and ensure smooth operation. Let's explore the main elements and design characteristics of a cable pulley:

  • Wheel or Sheave: The central component of a cable pulley is the wheel or sheave. It is a grooved cylindrical or disk-shaped component that provides a guiding surface for the cable or rope. The groove on the wheel allows the cable to move along its circumference, changing the direction of force. The sheave is typically made of durable materials such as metal or high-strength polymers to withstand the loads and forces applied during operation.
  • Bearing: Cable pulleys incorporate bearings to facilitate smooth rotation of the wheel or sheave. Bearings reduce friction between the rotating components, allowing the pulley to rotate freely as the cable moves. Common types of bearings used in cable pulleys include ball bearings or roller bearings, which are selected based on the load capacity, rotational speed, and desired smoothness of operation.
  • Axle or Shaft: The wheel or sheave of a cable pulley is mounted on an axle or shaft. The axle provides the central axis of rotation for the pulley and supports the wheel. It is typically made of a sturdy material such as steel or stainless steel to withstand the forces and loads applied during lifting or movement operations. The axle is securely mounted to the framework or structure to ensure stability and proper alignment of the pulley assembly.
  • Frame or Housing: Cable pulleys are often housed within a frame or housing that provides support and containment for the pulley components. The frame or housing is designed to maintain the proper alignment of the pulley components, prevent the cable from slipping off the sheave, and protect the internal components from external elements or damage. The frame or housing is typically constructed from materials such as metal or reinforced polymers, ensuring durability and structural integrity.
  • Mounting Hardware: Cable pulleys require mounting hardware to securely attach them to the desired location or structure. The mounting hardware may include bolts, screws, brackets, or other fastening mechanisms, depending on the specific application and mounting requirements. The hardware ensures that the pulley assembly remains stable and properly positioned during operation, preventing unnecessary vibrations or movement.
  • Surface Finish: The surface finish of a cable pulley is an important design feature that influences its performance. The groove on the wheel or sheave should have a smooth finish to minimize friction and prevent excessive wear on the cable or rope. The surface finish may involve processes such as polishing, coating, or heat treatment to achieve the desired level of smoothness and durability.
  • Load Capacity and Safety Factor: The design of a cable pulley takes into account the anticipated load capacity and safety factors. The materials, dimensions, and construction of the pulley components are determined to handle the expected loads without failure or deformation. Safety factors are incorporated to provide an additional margin of strength and reliability, ensuring that the pulley can withstand unexpected peak loads or external forces.

In summary, a cable pulley consists of key components such as the wheel or sheave, bearing, axle or shaft, frame or housing, and mounting hardware. These components, along with design features including surface finish, load capacity, and safety factors, work together to enable smooth operation, efficient force transmission, and reliable performance in lifting and cable-based systems.

China Best Sales Large Diameter Cable Pulley Wheels for Stringing Block   belt pulley	China Best Sales Large Diameter Cable Pulley Wheels for Stringing Block   belt pulley
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