China high quality Sliding Gate Wheel, 2PCS V Pulley, Lightweight Easy Installation for Industrial Machine Sliding Rolling CZPT Sliding Door Wire Rope Rail double pulley

Product Description

Single Bearing Trapezoid Gate Wheel

Model A B C D E Weight
(Y)
Units:g
Weight
(U)
Units:g
Weight
(V)
Units:g
30×11 35 11 30 45 17 * * 63
40×14 45 14 38 75 25 192 185 194
50×15 55 15 48 75 25 253 244 263
50×15 60 15 48 85 30 303 292 302
60×17 65 20 58 85 30 400 395 410
70×20 80 20 68 100 35 640 640 665
80×20 85 20 48 100 35 805 785 825
90×20 100 20 88 133 35 1130 1121 1145
100×20 105 20 98 133 35 1350 1338 1363
The data is measured by hand, maybe there are some errors, just for reference.

Double Bearing Gate Wheel

Model A B C D E Weight(Y) Weight(U)
50MM 55 26 48 85 30 324 320
60MM 65 30 58 85 30 617 580
70MM 80 32 68 100 35 977 954
80MM 85 32 48 100 35 1260 1223
90MM 100 32 88 133 35 1788 1760
100MM 105 32 98 133 35 2100 2078
The data is measured by hand, maybe there are some errors, just for reference.

Laminated Gate Wheel

Model A B C D Weight(Y/V) Weight(U)
50mm 48 15 100 26 260 250
60mm 58 17 100 26 390 360
70mm 68 20 136 33 590 570
80mm 78 20 136 33 750 725
90mm 88 20 152 33 1060 1030
100mm 98 20 152 33 1265 1225
The data is measured by hand, maybe there are some errors, just for reference.

Hang Gate Wheel

 Model A B C D E F G H I
H25 51 25 M9*50 9 95 79 25 6 27
H38 86 38 M12*70 11 120 118 38 10 32
H55 115 55 M20*85 14 140 159 44 10 15
The data is measured by hand, maybe there are some errors, just for reference.

Triangle Gate Wheels/ Rotation Gate Wheels/ Hanging Wheels/ White Zinc Gate Wheels/ Doule Wheels Double Bearing Gate Wheel

      We have already had nealy a decade producting and exporting experience. Since 2014, we have sold our products to dozens of countries all around the world. And we have established a deep cooperative relationship with many customers. 
      We make our products with heart, strive to bring the best quality for customers. So we got a lot of customer approval. After that, we will also strictly control, down-to-earth, and forge ahead.

        1.ZheJiang Joinwin Hardware and Tools Co., Ltd. we have 10 years manufacturing and exporting experience which ranks among the best in China. Mainly sales pliers, spanners, scissors, saws, screwdrivers, wheels, sillicone sealant, tapline and other hand tools. 
        2.Located in HangZhou where is just 180km far from HangZhou Port and many raw material factories around, greatly reduces transportation and procurement costs.
        3.We have professional sales and engineers to provide satisfied service to clients. Our company covers an area of 1000 square meters, has the most advanced production equipment and technology.      
        4.Customer first, team work, embrace change, sincere are our company culture.      
        5.We aim to provide clients more safety and convenient life.

              Pliers                 Adjustable Wrench  Combination Spanners         Hammers               Pruner Scissors        Aviation Tin Snips
      Screwdrivers                    Padlocks                   Hand Saws                       Axe                 Silicone Sealant 
Q1: Can I get a sample?
A1: Yes, the samples are usually free for customers.

Q2: Can you provide OEM service?
A2: Yes, we can produce the goods according to clients’ demands.

Q3: How can you guarantee the quality?
A3: We have advanced equipment and professional engineer and quality inspector to ensure the quality of the goods. And we will send extra goods for insurance. Besides, we have satisfied after-service.

Q4: What is the MOQ?
A4: 500 PCS.

Q5: How long you will finish my order?
A5: Totally in 30 days. (The specific situation depends on the production schedule of the production department.)
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After-sales Service: 3 Years
Warranty: 365 Days
Certification: CE
Splittable: Splittable
Surface Treatment: Zinc Plated
Material: Metal
Samples:
US$ 0.01/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

rope pulley

How are rope pulleys integrated into theater and stage rigging systems?

Rope pulleys play a crucial role in theater and stage rigging systems. Here’s a detailed explanation of how they are integrated:

1. Fly Systems:

Rope pulleys are an integral part of fly systems used in theaters and stages to raise and lower scenery, backdrops, lighting fixtures, and other equipment. In a typical fly system, ropes are attached to the objects that need to be flown and routed through a series of pulleys. The pulleys, often called blocks, are mounted on grids or frames known as grids or fly floors. By pulling the ropes, stagehands can raise or lower the objects with ease, allowing for quick scene changes and special effects during performances.

2. Counterweight Systems:

In counterweight systems, rope pulleys are used to balance the weight of flown objects. The pulleys are attached to the ceiling or grid structure, and counterweights are added to the opposite end of the ropes. The counterweights offset the weight of the scenery or equipment, making it easier to raise and lower them. The pulleys help redirect the ropes and distribute the load, ensuring smooth and controlled movement. Counterweight systems with rope pulleys are widely used in theaters to achieve precise and balanced flying effects.

3. Rigging Grids:

Rope pulleys are integrated into rigging grids, which are network-like structures typically installed above the stage. The pulleys are mounted on the grid and serve as attachment points for rigging lines. These lines are used to suspend scenery, lighting, audio equipment, and other elements from the grid. By utilizing pulleys, the rigging lines can be redirected to achieve the desired height, position, and orientation of the suspended objects. The pulleys in the rigging grids enable versatile and flexible rigging configurations to support various production requirements.

4. Motorized Systems:

In modern theater and stage rigging, motorized systems are often employed for enhanced automation and precision. Rope pulleys are an essential component of motorized systems, which use electric motors or hydraulic systems to control the movement of scenery and equipment. The pulleys are integrated into the motorized mechanisms, allowing the ropes to be guided and redirected as needed. Motorized systems with rope pulleys enable smooth, controlled, and synchronized movements, enhancing the efficiency and safety of stage operations.

5. Safety and Control:

Rope pulleys in theater and stage rigging systems are designed with safety and control in mind. They are often equipped with features such as locking mechanisms, brakes, and safety devices to prevent accidental releases or uncontrolled movements. The pulleys are carefully selected and installed to ensure they can handle the anticipated loads and forces involved in flying or suspending objects. Rigging professionals follow industry standards and guidelines to ensure proper integration and operation of rope pulleys for safe and reliable stage rigging.

6. Rigging Crew:

Integrating rope pulleys into theater and stage rigging systems requires skilled rigging crews. These professionals are responsible for selecting the appropriate pulleys, ropes, and hardware based on the specific needs of the production. They ensure proper installation, maintenance, and operation of the pulleys to guarantee the smooth functioning of the rigging system. Rigging crews collaborate closely with the production team to understand the requirements and translate them into effective rigging solutions using rope pulleys.

In summary, rope pulleys are integrated into theater and stage rigging systems to facilitate the movement, suspension, and control of scenery, equipment, and lighting. They are used in fly systems, counterweight systems, rigging grids, motorized systems, and more. Rope pulleys ensure smooth and controlled movements, enable precise positioning, and contribute to the safety and efficiency of stage operations. Skilled rigging crews play a vital role in selecting, installing, and maintaining rope pulleys to meet the specific requirements of theater and stage productions.

rope pulley

Are there different types of rope pulleys, and how do they differ in applications?

Yes, there are different types of rope pulleys designed for various applications. Each type of pulley offers specific features and advantages that make them suitable for different uses. Here’s a detailed explanation of some common types of rope pulleys and how they differ in applications:

1. Fixed Pulleys:

Fixed pulleys are the simplest type of pulleys and have a stationary axle. They change the direction of the force applied to the rope but do not provide any mechanical advantage. Fixed pulleys are commonly used in applications where the purpose is to redirect the force or change the direction of the rope, such as flagpoles, clotheslines, or simple lifting systems. They do not reduce the effort required to lift the load.

2. Movable Pulleys:

Movable pulleys have an axle that can move along with the load. They provide a mechanical advantage by reducing the amount of force required to lift a load. The rope is threaded through the pulley, and one end is attached to a fixed point while the other end is used to apply force. Movable pulleys are commonly used in systems like block and tackle setups, where multiple pulleys are used in conjunction to distribute the load and provide a mechanical advantage. This type of pulley is often used in lifting heavy objects or in applications where a user wants to reduce the effort needed to move a load.

3. Compound Pulleys:

Compound pulleys, also known as combination pulleys, are a combination of fixed and movable pulleys. They provide an increased mechanical advantage compared to a single movable pulley. Compound pulleys consist of multiple pulleys, with some being fixed and others being movable. By combining fixed and movable pulleys, compound pulleys offer an even greater reduction in the force required to lift a load. They are commonly used in applications where heavy loads need to be lifted with minimal effort, such as in construction, rigging, or industrial settings.

4. Snatch Blocks:

Snatch blocks are a specialized type of pulley that is designed with a hinged side plate or a removable sheave. This feature allows the rope to be inserted into the pulley without threading it through one end. Snatch blocks are commonly used in applications where the rope cannot be easily threaded through the pulley due to its length or the presence of knots or attachments. They are frequently used in rigging, towing, or recovery operations.

5. Self-Locking Pulleys:

Self-locking pulleys, also known as progress capture pulleys, have a mechanism that automatically locks the pulley in place when a load is applied. This feature prevents the rope from slipping backward, providing additional safety and security. Self-locking pulleys are commonly used in applications where the load needs to be held securely in position, such as in rock climbing, rescue operations, or hauling heavy objects vertically.

6. Rescue Pulleys:

Rescue pulleys are specifically designed for use in emergency and rescue scenarios. They are typically lightweight, compact, and have additional features like side plates that open to allow the rope to be easily inserted or removed without detaching the pulley from the anchor. Rescue pulleys are commonly used in situations like mountaineering, caving, or search and rescue operations.

In summary, there are different types of rope pulleys, including fixed pulleys, movable pulleys, compound pulleys, snatch blocks, self-locking pulleys, and rescue pulleys. Each type of pulley offers unique features and advantages that make them suitable for specific applications. Understanding the different types of pulleys and their characteristics helps in selecting the appropriate pulley for a particular task or use case.

rope pulley

What types of ropes or cables are typically used with rope pulleys?

Rope pulleys can accommodate various types of ropes or cables depending on the specific requirements of the application. Here’s a detailed explanation of the types of ropes or cables typically used with rope pulleys:

1. Natural Fiber Ropes:

Natural fiber ropes, such as manila or sisal ropes, are commonly used with rope pulleys. These ropes are made from natural materials, offering good grip and flexibility. They are suitable for applications where the load is not excessively heavy and where some stretching or elongation is acceptable. Natural fiber ropes are often used in recreational activities, gardening, and general-purpose lifting tasks.

2. Synthetic Fiber Ropes:

Synthetic fiber ropes, including polypropylene, nylon, and polyester ropes, are widely used with rope pulleys. These ropes offer excellent strength, durability, and resistance to abrasion and weather conditions. Synthetic fiber ropes are available in different grades and constructions, allowing users to select the appropriate rope based on the load capacity and specific environment. They are commonly used in industries such as construction, shipping, and recreation.

3. Steel Cables:

Steel cables, also known as wire ropes, are utilized with rope pulleys when dealing with heavy loads or applications that require high strength and resistance. Steel cables consist of multiple strands of steel wire twisted together, providing exceptional tensile strength and durability. They are often used in construction, mining, rigging, and industrial lifting operations. Steel cables offer superior resistance to corrosion and can withstand heavy loads and harsh environments.

4. Aramid Fiber Ropes:

Aramid fiber ropes, such as those made from Kevlar, are used in specialized applications that require high strength, heat resistance, and low stretch. Aramid fiber ropes are lightweight yet extremely strong, making them suitable for tasks such as industrial lifting, aerospace, and military operations. These ropes offer excellent resistance to chemical degradation and are often preferred in environments where other materials may not perform optimally.

5. Specialty Ropes:

In addition to the common types mentioned above, there are various specialty ropes or cables designed for specific applications. For example, static ropes or static kernmantle ropes are used in rope access, rock climbing, and rescue operations where low stretch and high strength are crucial. Dynamic ropes are specifically designed for applications that involve absorbing energy, such as climbing falls. Specialty ropes are often engineered with specific properties to meet the unique demands of their intended use.

It’s important to note that the selection of the appropriate rope or cable for a rope pulley system depends on factors such as the load capacity, environmental conditions, desired stretch or elongation, and safety requirements. Users should consult the manufacturer’s recommendations and consider the specific needs of their application to ensure the proper selection and use of ropes or cables with rope pulleys.

China high quality Sliding Gate Wheel, 2PCS V Pulley, Lightweight Easy Installation for Industrial Machine Sliding Rolling CZPT Sliding Door Wire Rope Rail   double pulley	China high quality Sliding Gate Wheel, 2PCS V Pulley, Lightweight Easy Installation for Industrial Machine Sliding Rolling CZPT Sliding Door Wire Rope Rail   double pulley
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