Product Description
High Performance Pulley for Belt Conveyors
BRIEF INTRODUCTION
Our company has adopted proprietary technology and equipment imported from German PWH company for the design and manufacturing of various pulleys . As a key component of the conveyor, the pulley should have high reliability. Our company’s R&D center has improved the pulley structure, reduced structural stress, and increased the lifespan and reliability of the pulley group through finite element analysis and optimization calculations. Our company’s pulley is manufactured from specialized high-end manufacturing equipment and has achieved serialized and large-scale production.
We have produced conveyor pulleys for belt width up to 2.4 m, pulley diameter up to 1.8 m, and maximum tension up to 300 tons.
PRODUCT INFORMAITON
| Product Name | Pulley |
| Adhesive Material | smooth, ordinary rubber, wear-resistant rubber, UHMW-PE, rubber ceramic, etc.. |
| Adehensive Treatment | glued or casted |
| Carrying Capacity | light, medium and heavy type |
| Connection Mode | Shafts and wheels of the medium and heavy-duty pulley are connected by expansion sleeves. |
| Pulley Pipe | made of Q235B carbon steel, with high roundness and straightness ensuring rotation balance |
| Shaft | 45 # round steel or according to your requirements; ultrasonic inspection, quenching and tempering treatment, strict control of key fit size tolerances, greatly extending service life. |
| Bearing Brands | Havalo, SKF, FAG, SNK or according to your requirements |
| Bear Seat | Integral bearing seat, partial bearing seat |
| Color | bright red paint or according to your requirements |
VARIOUS TYPES OF PULLEY ADHESIVE SURFACE
BEARING SEAT MODE
TECHNICAL SPECIFICATIONS & PARAMETERS
| Technical Parameters for Belt Conveyor Pulley | ||||||
| Belt Width (mm) | Pulley Standard Diameter without Adhesive Layer(mm) | |||||
| 650 | 200,250,320,400,500,630 | |||||
| 800 | 200,250,320,400,500,630,800,1000,1250 | |||||
| 1000 | 250,320,400,500,630,800,1000,1250,1400,1600 | |||||
| 1200 | 250,320,400,500,630,800,1000,1250,1400,1600 | |||||
| 1400 | 320,400,500,630,800,1000,1250,1400,1600 | |||||
| 1600 | 400,500,630,800,1000,1250,1400,1600 | |||||
| 1800 | 250,400,500,630,800,1000,1250,1400,1600 | |||||
| 2000 | 400,500,630,800,1000,1250,1400,1600 | |||||
| Technical Parameters | ||
| 1 | Outer Circle Diameter D Deviation | 200 ≤ 1.5 400 ≤ 2.0 1000 ≤ 2.5 |
| 2 | Radial Runout of Outer Circle | D ≤ 200 ; without adhesive 0.3 ;with adhesive 0.5 200 < D ≤ 800 ; without adhesive 0.6; with adhesive 1.1 800 < D ≤ 1600 ; without adhesive 1.0; with adhesive 1.5 1600 < D ≤ 1800 ; without adhesive 1.5; with adhesive 2.0 |
| 3 | Static Balance Accuracy | G40 |
PROCESS FLOW OF PULLEY
Our company is equipped with necessary equipment for processing pulleys, such as large oil pressure machines, rolling machines, specialized pulley automatic explosive welding operators, large diameter lathes, boring machines, ultrasonic flaw detectors, static balancing devices, pressure casting machines, etc. Due to the special correction process adopted by the company, the pulley pipe skin is rounded before processing, and the pulley pipe wall is uniform after processing, thereby ensuring that the pulley has high static balance performance and high mechanical performance.
PRODUCT FEATURES
For pulleys with complex forces, large loads and used in heavy working conditions, they all adopt a cast welded structure and expansion sleeve connection. Compared with traditional drums in China, this type of drum mainly has the following characteristics :
(1) The structural parameters of the pulley are advanced and reasonable, and there is a dedicated computer calculation program to determine the shaft diameter, cylinder skin thickness, wheel amplitude plate shape and spacing, as well as the position of the circumferential weld seam set at the position where the stress is minimum and the number of cycles is minimum.
(2) The key technology of using single sided welding and double sided forming ensures the quality of the weld seam.
(3) The expansion sleeve connection is used between the drum hub and shaft, which not only solves the problem of key connection stress concentration that has been existing for many years and the technical difficulties of manufacturing and installing axial double keyways, but also achieves overall quenching and eliminates welding internal stress.
(4) The circumferential and longitudinal welds of the pulley have undergone non-destructive testing, and the casting quality of the wheel hub has undergone magnetic particle or ultrasonic testing.
(5) The total radial runout of the outer circle after roller casting is less than 1mm.
(6) All drums undergo static balance tests before leaving the factory to achieve G40 accuracy.
(7) All driving pulley and directional pulley with high stress have undergone finite element analysis to ensure that the stress and strain of the rollers meet the requirements.
Due to a series of measures taken, the pulley group produced by SK has a reasonable structure, large bearing capacity, and reliable performance. And it overcomes the problem of fatigue fracture at the welding seam of the existing pulley plate in China. The pullley (including the welding part) is guaranteed to have a rotational fatigue strength of over 108°.
WORKSHOP OF FINISHED PULLEIES
PACKAGE AND DELIVEYR
APPLICATION INDUSTRIES
CONVEYORS EPC/BOT CONTRACTING CAPABILITY
VARIOUS CONVEYOR SPARE PARTS SUPPLY
AERIAL VIEW OF OUR FACTORY
INTELLIGENT PRODUCTION & TESTING
CERTIFICATES & HORNORS
BRANCHES & OFFICES
TEAM BUILDING
LONG-TERM STRATEGIC COOPEATORS
MAIN CUSTOMERS
CUSTOMERS VISITS
DOMESTIC & OVERSEAS EXHIBITIONS
SINGING CEREMONY
GLOBAL BUSINESS NETWORK
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| Certification: | CE, ISO |
|---|---|
| Pulley Sizes: | Kk |
| Manufacturing Process: | Forging, Casting |
| Material: | Carbon Steel |
| Surface Treatment: | Smooth, Rubber or Ceramics |
| Application: | Chemical Industry, Grain Transport, Mining Transport, Power Plant, Port, Dock, Energy, Cement, Metallurgy, Steel |
| Samples: |
US$ 7/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What is the difference between a fixed and a swivel pulley?
Fixed and swivel pulleys are two common types of pulleys that differ in their design and functionality. Here are the key differences between these two types:
1. Fixed Pulley: A fixed pulley is a type of pulley that is mounted or attached to a fixed point, such as a beam or a ceiling. It does not move or rotate independently of its mounting point. The primary function of a fixed pulley is to change the direction of the force applied to a rope or cable. When a force is applied to the rope or cable passing through a fixed pulley, the load moves in the opposite direction. However, a fixed pulley does not provide any mechanical advantage, meaning it does not reduce the effort required to lift the load.
2. Swivel Pulley: A swivel pulley, also known as a movable pulley, is designed to rotate or swivel on a separate mounting point. It has a built-in mechanism that allows it to move independently. Unlike a fixed pulley, a swivel pulley is capable of changing both the direction and the magnitude of the force applied to the rope or cable. When a force is applied to the rope or cable passing through a swivel pulley, the load moves in the same direction as the applied force. Additionally, a swivel pulley provides a mechanical advantage by distributing the load’s weight over multiple strands of rope or cable, reducing the effort required to lift the load.
In summary, the main differences between fixed and swivel pulleys are:
– Fixed pulleys are stationary and do not move independently, while swivel pulleys can rotate or swivel on a separate mounting point.
– Fixed pulleys change the direction of the force applied to the rope or cable, while swivel pulleys change both the direction and the magnitude of the force.
– Fixed pulleys do not provide a mechanical advantage, while swivel pulleys provide a mechanical advantage by distributing the load’s weight over multiple strands of rope or cable.
Both fixed and swivel pulleys have their specific applications and can be used individually or in combination with each other to achieve desired mechanical functions in various systems and setups.
What is the role of pulleys in the mining and construction industries?
Pulleys play a vital role in the mining and construction industries, where they are utilized in various applications to facilitate heavy-duty operations, enhance safety, and improve efficiency. Here’s an overview of the role of pulleys in these industries:
1. Conveyor Systems:
In mining and construction, conveyor systems are extensively used to transport bulk materials, such as ores, rocks, gravel, and construction aggregates. Pulleys are integral components of conveyor systems, guiding and supporting the conveyor belts or chains. They help in maintaining tension, reducing friction, and ensuring smooth movement of materials over long distances. The pulleys used in these systems are designed to withstand high loads and harsh environmental conditions.
2. Hoisting and Lifting Equipment:
Pulleys are crucial in hoisting and lifting equipment used in mining and construction activities. Cranes, winches, and lifting systems often incorporate pulley arrangements to provide mechanical advantage and control the movement of heavy loads. The pulleys, along with ropes, cables, or chains, allow for safe and efficient lifting, lowering, and positioning of equipment, materials, and structures at construction sites or in mining operations.
3. Wire Rope Systems:
In mining and construction, wire ropes are extensively used for various applications, including hauling, towing, and lifting heavy loads. Pulleys, known as sheaves, are employed in wire rope systems to guide and redirect the wire ropes. The sheaves help in maintaining proper alignment, reducing wear, and ensuring efficient power transmission. They are commonly used in applications such as cranes, elevators, and wire rope hoists.
4. Crushing and Screening Equipment:
In the mining and construction industries, pulleys are used in crushing and screening equipment. For example, in crushers, pulleys are utilized to drive the rotating motion of the crusher’s jaws or cones, enabling the crushing of large rocks or ores into smaller sizes. Pulleys also play a role in vibrating screens, helping to generate the necessary vibrations that separate and classify materials based on size.
5. Earthmoving and Excavation Equipment:
Pulleys are incorporated into earthmoving and excavation equipment in mining and construction applications. For instance, in excavators or dragline machines, pulleys are used in the cable systems that control the movement of the bucket or shovel. The pulleys help in extending or retracting the cables, allowing for efficient excavation, loading, and material handling.
6. Tensioning and Alignment:
In mining and construction operations, pulleys are utilized for tensioning and alignment purposes. Tensioning pulleys ensure proper tensioning of belts, ropes, or cables, optimizing power transmission and preventing slippage. Alignment pulleys are employed to maintain the correct alignment of belts or chains, reducing wear, minimizing vibrations, and extending the lifespan of the components.
In summary, pulleys play a critical role in the mining and construction industries, contributing to material handling, lifting and hoisting operations, wire rope systems, crushing and screening equipment, earthmoving and excavation machinery, and tensioning and alignment applications. Their use enhances safety, improves efficiency, and enables the execution of heavy-duty tasks in these demanding industries.
Can pulleys be customized for specific applications?
Yes, pulleys can be customized to meet the specific requirements of various applications. Customization allows pulleys to be tailored to specific sizes, shapes, materials, and performance characteristics. Here’s a detailed explanation of how pulleys can be customized:
1. Size and Shape: Pulleys can be customized in terms of their size and shape to fit the specific space and layout constraints of the application. This includes variations in diameter, width, groove configuration, and overall design. Custom sizes and shapes ensure optimal fit and compatibility within the system, allowing for efficient and effective load distribution and lifting.
2. Materials: Pulleys can be customized based on the materials used for their construction. Different materials offer varying properties such as strength, durability, weight, and resistance to corrosion or wear. By selecting the appropriate materials, pulleys can be customized to withstand the specific operating conditions of the application, including temperature, humidity, and exposure to chemicals or harsh environments.
3. Bearing Systems: The bearing system of a pulley can be customized to suit the requirements of the application. Different bearing types, such as ball bearings or roller bearings, can be selected based on factors like load capacity, rotational speed, and desired friction characteristics. Customizing the bearing system ensures smooth rotation, reduced friction, and improved overall performance of the pulley.
4. Coatings and Surface Treatments: Pulleys can be customized with various coatings and surface treatments for enhanced performance. For example, pulleys used in applications that involve high temperatures may benefit from heat-resistant coatings. Pulleys used in environments with corrosive substances can be coated with protective materials to prevent corrosion. Surface treatments such as polishing or plating can also be applied to reduce friction, improve wear resistance, or provide specific surface properties.
5. Load Capacity and Performance: Pulleys can be customized to accommodate specific load capacities and performance requirements. This includes determining the number of pulleys in a system, selecting the appropriate pulley ratios, and configuring the pulley arrangement to achieve the desired mechanical advantage. Customization allows pulleys to be optimized for the specific load requirements, ensuring efficient load distribution and lifting.
6. Integration with Systems: Pulleys can be customized to seamlessly integrate with existing systems or equipment. This involves designing pulleys with compatible interfaces, mounting options, and connection methods. Customization ensures proper alignment, easy installation, and smooth operation when incorporating pulleys into the overall system.
7. Specialty Applications: In certain specialized applications, pulleys can be customized to meet unique requirements. This may include designing pulleys for extreme operating conditions, such as high speeds or heavy loads, or developing pulleys with specific features like built-in sensors or locking mechanisms. Customization allows pulleys to be tailored to the specific needs of niche applications.
Customization of pulleys is typically carried out by manufacturers or suppliers who have the expertise and capabilities to design and produce pulleys according to specific customer requirements. This allows for the optimization of pulley performance, compatibility, and efficiency in a wide range of applications.
editor by CX
2024-02-04
