Product Description
Head Drive Pulley, Return Pulley,Bend Pulley, Snub Pulley,Tensioning Pulley, Take up Pulley can be provided. We are designing and manufacturing pulleys, using materials of the highest quality in a production process employing advanced technology. This together with the application of the Quality Assurance system certifi ed to ISO 9001:2015, contributes to the production of high quality products offering dependable, long life performance in the field and appreciably reducing maintenance cost. Each our conveyor pulley is individually computer designed to meet the client’s requirements.
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Product Name |
Belt Conveyor Pulley Drum |
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Type |
Drive Pulley, Bend Pulley,Snub Pulley,Take Up Pulley | ||
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Length |
200mm-2500mm |
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Materials |
Carbon steel, Stainless steel, Rubber |
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Surface Treatment |
Smooth, CHINAMFG grooved lagging, Herringbone lagging, Ceramic lagging |
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Welding |
Submerged Arc Welding |
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Bearing |
Famous brands |
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Structure |
Tube,shaft,self-aligning bearing,bearing seat/house,hub, locking bushing,end disc |
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Drive Pulley Introduction:
1. Head/Drive Pulley is located at the discharge terminus of the conveyor.
2. Drive pulley provides the driving force for the conveyor. In order to increase pulley life and traction, it often has a larger diameter than other pulleys.
3. We can supply pulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. Different patterns of grooving such as herringbone or CHINAMFG can be provided to increase tractive friction under dirty or wet conditions. CHINAMFG grooves have the advantage of being installed in any orientation, regardless of belt direction.
Specification of Drive Head Pulley Drum
| Belt Width | 500-2800mm (19-110 inch) |
| Pulley Length | 500-3500mm (19-138 inch) |
| Diameter | 200-1800mm (8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, JIS, AS/NS, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
| Length of conveyor drive pulley depends on the width of conveyor Belt. You can get drive pulleys with hot & cold vulcanized rubber lagging, plain or grooved, as required by client. | |
Bend Pulley Introduction:
1. The bend pulley is used for changing the direction of the belt.
2. The bend pulley is usually installed at the tail part or the vertical take-up equipment part when the belt direction need to 180°bending. It will be installed above the take-up equipment part while 90°bending.
3. The pulley, which is used for extending the contact surface, is usually used for below or equal to 45 degree bending.
4. The surface treatment of the bend pulley can be smooth steel and flat rubber lagging.
Specification of Bend Pulley:
| Belt Width | 500-2800mm(19-110 inch) |
| Pulley Length | 500-3200mm(19-126 inch) |
| Diameter | 200-1800mm(8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
| Length of conveyor bend pulley depends on the width of conveyor Belt. You can get drive pulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. | |
Snub Pulley
Snub pulley is used to achieve higher angle of wrap on the drive pulley thereby increasing the traction. It also reduces the belt tension maximizing the life of the conveyor component.It is mounted close to the drive pulley on the return side of the belt.
Specification of Snub Pulley:
| Items | Content |
| Belt Width | 500-2800mm (19-110 inch) |
| Pulley Length | 500-3200mm (19-126 inch) |
| Diameter | 200-1800mm (8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
| Length of conveyor Snubpulley depends on the width of conveyor Belt. You can get Snubpulleys with hot vulcanized rubber lagging, plain or grooved, as required by client. | |
Take Up Pulley
The take up pulley will ensure adequate tension of the belt leaving the drive pulley so as to avoid any slippage of the belt, ensure proper belt tension at the loading and other points along the conveyor, compensate for changes in belt length due to elongation, and provide extra length of belt when necessary for splicing purpose.
Specification of take up pulley drum:
| Belt Width | 500-2800mm(19-110 inch) |
| Pulley Length | 500-3200mm(19-126 inch) |
| Diameter | 200-1800mm(8-70 inch) |
| Standard | ISO9001:2008, CEMA, DIN, TUV, etc. |
| Working Life | More than 30,000 hours. |
| Surface | Flat Rubber Lagged, Ceramic Lagged, CHINAMFG Rubber Lagged, etc. |
| Main Material | Carbon Steel |
The components of a pulley drum include the following:
| Drum or Shell | The drum is the portion of the pulley in direct contact with the belt. The shell is fabricated from either a rolled sheet of steel or from hollow steel tubing.The shell has a specific ‘face’ width and diameter which is determined by the width of the belting and the type and rating of the belt to be used on the conveyor. | |
| Diaphragm Plates | The diaphragm or end plates of a pulley are circular discs which are fabricated from thick steel plate and which are welded into the shell at each end, to strengthen the drum.The end plates are bored in their centre to accommodate the pulley shaft and the hubs for the pulley locking elements. | |
| Shaft | The shaft is designed to accommodate all the applied forces from the belt and / or the drive unit, with minimum deflection.The shaft is located and locked to the hubs of the end discs by means of a locking elements. The shaft is supported on both ends by bearings which are housed in plummer blocks, to support the shaft and pulley assembly on the conveyor structure. Shafts often comprise different diameters along their length due to the bending moments and resultant deflection limitations. The diameter of the shaft at the landings for the bearings may be smaller to satisfy the necessary bearing diameter which is more cost-effective (smaller). Similarly in the case of a drive shaft, the drive attachment, may be different to the other diameters along the shaft and hence pulley shafts are often stepped. |
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| Locking Elements | These are high-precision manufactured items which are fitted over the shaft and into the pulley hubs. The locking elements attach the pulley firmly to the shaft via the end plates.Locking elements work on the friction-grip principle whereby the element is able to be fastened to the shaft and hub simultaneously and concentrically, by tightening a series of screws around the locking element. | |
| Hubs | The hubs are fabricated and machined housings which are welded into the end plates. The hubs are sized according to the size of the pulley, the diameter of the shaft and the size of the locking element which is required for the specific duty. | |
| Lagging | It is sometimes necessary or desirable to improve the friction between the conveyor belt and the pulley in order to improve the torque that can be transmitted through a drive pulley.Improved traction over a pulley also assists with the training of the belt. In such cases pulley drum surfaces are ‘lagged’ or covered in a rubberized material. This cover is usually 8 mm to 12 mm thick and can be plain or have a grooved pattern. The rubber lagging is vulcanized to the pulley shell to ensure that it remains attached under adverse operating conditions. |
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| Bearing Assemblies | Bearings support the rotating shaft and hence the pulley. The bearings are housed in ‘plummer blocks’ which enable the mass of the pulley assembly plus the belt tension forces to be transmitted to the pulley supporting structure.Plummer blocks are often bolted to ‘sole plates’ which are welded to the structure. The sole plates incorporate jacking screws to enable the pulley to be correctly and relatively easily aligned. |
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Several types of bearing housing, seals and end disc:
Pulley Drum Warehouse and package:
Pulley Drums:
Our Products: Belt Conveyors, Pulley Drum, Conveyor Rollers Idler, etc.
| Material: | Stainless Steel |
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| Surface Treatment: | Polishing |
| Motor Type: | Frequency Control Motor |
| Samples: |
US$ 300/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
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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What is the importance of proper pulley alignment and tensioning in flat belt pulley systems?
Proper pulley alignment and tensioning are crucial in flat belt pulley systems. Here’s a detailed explanation:
1. Efficient Power Transmission:
Proper pulley alignment and tensioning ensure efficient power transmission in flat belt pulley systems. When the pulleys are correctly aligned, the belt remains centered on the pulley surfaces, minimizing friction and reducing energy losses. Additionally, maintaining the appropriate tension in the belt prevents slipping and ensures optimal power transfer from the driving pulley to the driven pulley, maximizing the efficiency of the system.
2. Belt Longevity:
Correct pulley alignment and tensioning contribute to the longevity of flat belts. Improper alignment can cause the belt to rub against the pulley edges, leading to accelerated wear and tear. Similarly, insufficient tension or excessive tension can cause excessive stretching or strain on the belt, reducing its lifespan. By aligning the pulleys properly and maintaining the recommended tension, the belt experiences minimal stress and wear, prolonging its durability.
3. Reduced Noise and Vibration:
Proper pulley alignment and tensioning help minimize noise and vibration in flat belt pulley systems. Misaligned pulleys can create uneven forces, causing the belt to generate noise and vibrations during operation. These vibrations can propagate through the system, affecting other components and potentially leading to increased wear and reduced overall system performance. By ensuring proper alignment and tensioning, the system operates smoothly, reducing noise and vibration levels.
4. Prevent Belt Slippage:
Correct tensioning in flat belt pulley systems prevents belt slippage, ensuring reliable operation. Insufficient tension can cause the belt to slip on the pulleys, resulting in a loss of power transmission and compromised system performance. Proper tensioning ensures that the belt maintains sufficient grip on the pulley surfaces, preventing slippage and ensuring consistent power transfer.
5. Accurate Speed Control:
Proper pulley alignment and tensioning enable accurate speed control in flat belt pulley systems. When the pulleys are aligned correctly, the belt operates with consistent tension, allowing for precise speed control of the driven pulley. This is important in applications where specific speeds are required for tasks such as material handling, machining, or processing. Accurate speed control helps maintain product quality, prevents damage to equipment or materials, and ensures efficient operation.
6. Improved Safety:
Ensuring proper pulley alignment and tensioning enhances safety in flat belt pulley systems. Misaligned or poorly tensioned belts can pose a safety hazard as they may come off the pulleys or cause unexpected system failures. By aligning the pulleys correctly and maintaining the recommended tension, the risk of belt dislodgement or sudden system failures is minimized, promoting a safer working environment for operators.
7. Optimal System Performance:
Ultimately, proper pulley alignment and tensioning contribute to the overall performance of flat belt pulley systems. By maintaining the belts in the correct position on the pulleys and ensuring proper tension, the system operates at its intended capacity, delivering consistent power transmission, reliable operation, and efficient performance. This helps maximize productivity, reduce downtime, and optimize the lifespan of the components within the system.
In conclusion, proper pulley alignment and tensioning are vital for efficient power transmission, belt longevity, reduced noise and vibration, prevention of belt slippage, accurate speed control, improved safety, and optimal performance in flat belt pulley systems.
Can flat belt pulleys be customized for specific machinery and equipment?
Yes, flat belt pulleys can be customized to suit specific machinery and equipment requirements. Here’s a detailed explanation:
1. Pulley Dimensions:
Flat belt pulleys can be customized in terms of their dimensions to fit the specific space and clearance constraints of the machinery or equipment. The outer diameter, inner diameter, and width of the pulley can be adjusted to ensure proper alignment and fit within the system.
2. Shaft Compatibility:
Customized flat belt pulleys can be designed to match the shaft size and configuration of the machinery or equipment. This ensures a secure and accurate connection between the pulley and the shaft, minimizing any potential slippage or misalignment issues.
3. Material Selection:
The choice of material for the pulley can be customized based on the specific requirements of the machinery or equipment. Different materials, such as steel, aluminum, or plastic, offer varying levels of strength, durability, and corrosion resistance. The material selection can be tailored to suit factors such as the operating environment, load capacity, and desired longevity of the pulley.
4. Keyways and Set Screw Holes:
Customized flat belt pulleys can be manufactured with keyways or set screw holes to enhance the connection and torque transfer between the pulley and the shaft. Keyways provide a positive locking mechanism, preventing rotational slippage, while set screw holes allow for secure fastening using set screws.
5. Surface Coatings:
In certain cases, customized flat belt pulleys can be coated or treated with specific surface finishes or coatings. These coatings can provide benefits such as improved wear resistance, reduced friction, or enhanced corrosion protection, depending on the operating conditions and requirements of the machinery or equipment.
6. Special Features:
Customized flat belt pulleys can incorporate special features or modifications based on the unique needs of the machinery or equipment. This may include additional mounting holes, balancing adjustments, or specific groove profiles to accommodate different belt types or configurations.
By working with pulley manufacturers or suppliers, machinery or equipment manufacturers can collaborate to design and produce customized flat belt pulleys that precisely meet the requirements of their specific applications.
It’s important to note that the customization process will depend on factors such as the complexity of the pulley design, production feasibility, and any minimum order quantities that may be required by the manufacturer.
Can you explain the typical applications of flat belt pulleys in machinery?
Flat belt pulleys are utilized in various machinery applications where power transmission using flat belts is required. Here’s a detailed explanation of their typical applications:
1. Industrial Machinery:
Flat belt pulleys find extensive use in industrial machinery across different sectors. They are commonly employed in machinery such as conveyor systems, manufacturing equipment, packaging machines, textile machinery, and woodworking machinery. These pulleys enable power transmission to drive various components, such as rollers, gears, cutting tools, and conveyor belts, facilitating the processing, movement, and manipulation of materials in industrial processes.
2. Agricultural Equipment:
In the agricultural sector, flat belt pulleys are used in machinery like threshers, combines, grain elevators, and hay balers. They play a crucial role in powering components such as fans, augers, pumps, and feeders. Flat belt pulleys provide a cost-effective and reliable solution for power transmission in agricultural equipment, allowing for efficient crop processing, harvesting, and handling operations.
3. Vintage Machinery:
Flat belt pulleys have historical significance and are often associated with vintage machinery. Before the widespread adoption of modern power transmission systems, such as V-belts or chains, flat belts and flat belt pulleys were commonly used. Therefore, flat belt pulleys can be found in antique or vintage machinery, including old lathes, milling machines, printing presses, and other early industrial equipment.
4. HVAC Systems:
Heating, ventilation, and air conditioning (HVAC) systems utilize flat belt pulleys in certain applications. These pulleys are used to transmit power to components like fans, blowers, and pumps in HVAC units. They help in ensuring efficient air circulation, temperature control, and fluid movement within HVAC systems, contributing to the overall performance and functionality of the systems.
5. Exercise Equipment:
Flat belt pulleys are also employed in exercise equipment such as treadmills, rowing machines, and stationary bikes. These pulleys assist in transferring power from the motor to the various moving parts of the exercise equipment, allowing for smooth and controlled movements during workouts.
6. Garage Door Openers:
Flat belt pulleys are used in garage door opener systems to transmit power from the motor to the pulley on the garage door shaft. The rotational motion of the pulley is transferred to the door’s lifting mechanism, enabling the smooth and automatic opening and closing of garage doors.
7. Other Applications:
Flat belt pulleys can be found in a range of other applications, including printing machines, paper mills, sewing machines, power tools, and various mechanical systems that require power transmission using flat belts.
It’s important to note that with advancements in technology, other types of power transmission systems, such as V-belts, timing belts, or direct drives, have gained popularity in many applications. However, flat belt pulleys continue to be used in specific machinery and industries where they offer advantages such as simplicity, cost-effectiveness, and compatibility with existing equipment.
editor by CX
2023-11-10