Product Description
Company Profile
We are a leading manufacturer of UHMW-PE products in China.Established in 1993, located in the China UHMW-PE production intensive center-Xihu (West Lake) Dis..We are a leading manufacturer of UHMW-PE products in China since 1990’s covering an area of 58,000 square meter, we are specialized in UHMW-PE engineering plastic products research ,development, manufacture, marketing and services.
Product Description
Ultra-high molecular weight polyethylene (UHMWPE) conveyor roller/ idler is a new generation of plastic instead of steel of high-tech products, its main raw material is ultra-high molecular weight polyethylene. Ultra high molecular weight polyethylene conveyor roller has physical and chemical properties which are high wear resistance, low friction coefficient, not easy to wear leather strap. It also has the fine self lubrication and not easy to card to die in the bad conditions, antistatic, flame retardant, aging resistance, corrosion resistance. It can withstand repeated impact, vibration, mechanical performance is excellent, light weight, easy installation, no maintenance, low noise (3-7DB), smooth operation. The temperature of using keep in -40°C to+85°C.
Product Advantages
1,Belt Friendly
— extremely High Wear Resistance ,which is about 5-7 times than that of steel roller . strong ability to resist adhesive , can prolong the service life of the belt for 2-3 times.
— high self-lubrication , No Material Build Up , thus no belt miss-tracking & material spillage , less down time , greatly reduced the working accident.
— don’t absorb water , thus it will not CHINAMFG with belt under low temperature.
2,superior sealing system
Dust and water proof sealing system (Patented) ,no grease leaking , prolong the bearing’s service life.
3,noise reduction
The noise reduction material of roller , the superior sealing system , high-precision bearings , And the U-shaped ventilation groove make it a great performance in noise reduction.
4,excellent TIR rate
The roller material is more flexible to shape with precise machining , it can significantly lower the TIR rate to 0.1mm or even less , no vibration under High Speed Conveying.
5,longer service life
— High-precision bearing has longer life than normal bearing.
— great patented sealing system , don’t absorb water , no grease leaking
6,light weight
— easy to install , replace and delivery
— less power consumption , smaller motor power required and reduce the cost.
7,F.R.A.S
Flame retardant , anti-static , resistant to corrosion of all kinds of chemical medium.
Product Parameters
| No. | Test Items | Unit | Results |
| 1 | T.I.R | mm | ≤0.2 |
| 2 | Axial displacement | mm | ≤0.4 |
| 3 | Axial displacement after falling | mm | <1.2 |
| 4 | Axial load | KN | >1.5 |
| 5 | Rolling resistance | N | ≤2.5 |
| 6 | Water spray running test | g | 0 |
| 7 | Underwater running test | g | 5 |
| 8 | Coefficient of friction | – | ≤0.1 |
Uhmwpe Pipe Application
Power Systems:
Fire power plant fly ash emissions, chemical water circulation system, sulfur removal system.
Coal industry:
Coal, coal slurry transport, mine air supply, exhaust, drainage system.
Chemical Industry:
Strong acid, alkali and other high corrosive media delivery, salt chemical brine, salt pulp, salt transport.
Oil exploitation:
Crude oil transportation, natural gas gathering and transportation, sewage recharge.
Metallurgical industry:
Coke powder, slag, pulp and smelting residue.
Mine Industry:
Slurry pipeline, coal mine high pressure water supply, gas pipeline.
Dredging works:
Rivers, lakes, ports, docks and other dredging works to transport sediment.
Ocean works:
seawater desalination in the transport of water, fresh water.
Municipal works:
sewage treatment, domestic water supply and gas transportation.
Projects
FAQ
1.Q: What’s Your bearing type and brand usually use?
A: Large clearance C3 ZZ type deep ball bearing with LYC, HRB,C&U and imported reknown bearings brand etc. According to customer’s requirements.
2.Q: How is your Payment Term?
A: T/T or L/C. Another payment term we can also discuss.
3.Q: Can you customize it?
A: We support customization according to your request.
4.Q: What’s the MOQ?
A: 1 piece.
5.Q: What’s the production capacity of your idler and belt conveyor?
A: Idlers 1,600,000 pcs/year.
6.Q: What’s your roller’s working life?
A: Our rollers have a long lifespan with good performance. Designed working life is 8,0000 hours under the ideal site and operation.
/* 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(/(.*?):(.*)$/))&&1
| Certification: | CE, ISO, Cema |
|---|---|
| Pulley Sizes: | Type F |
| Manufacturing Process: | Casting |
| Material: | UHMWPE/HDPE/Rubber |
| Surface Treatment: | Baking Paint |
| Application: | Chemical Industry, Grain Transport, Mining Transport, Power Plant, Cement Industry |
| Samples: |
US$ 10/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How does the diameter of a pulley affect its mechanical advantage?
The diameter of a pulley plays a significant role in determining its mechanical advantage. Mechanical advantage refers to the ratio of the output force or load to the input force or effort applied to the pulley system. Here’s how the diameter of a pulley affects its mechanical advantage:
1. Larger Diameter: When the diameter of a pulley increases, the mechanical advantage also increases. A larger diameter means that the circumference of the pulley is greater, allowing a longer length of rope or belt to be wrapped around it. As a result, a larger pulley requires less effort force to lift a given load. This is because the load is distributed over a greater length of rope or belt, reducing the force required to overcome the load.
2. Smaller Diameter: Conversely, when the diameter of a pulley decreases, the mechanical advantage decreases. A smaller diameter means that the circumference of the pulley is reduced, resulting in a shorter length of rope or belt wrapped around it. As a result, a smaller pulley requires more effort force to lift a given load. This is because the load is concentrated over a shorter length of rope or belt, requiring a greater force to overcome the load.
It’s important to note that while a larger diameter pulley offers a greater mechanical advantage in terms of reducing the effort force required, it also results in a slower speed of the load being lifted. This is because the longer length of rope or belt requires more input distance to achieve a given output distance. On the other hand, a smaller diameter pulley offers a lower mechanical advantage but allows for a faster speed of the load being lifted.
The mechanical advantage of a pulley system can be calculated using the formula:
Mechanical Advantage = Load / Effort
Where “Load” refers to the weight or force being lifted and “Effort” refers to the force applied to the pulley system. By adjusting the diameter of the pulley, the mechanical advantage can be optimized to suit the specific requirements of the application, balancing the effort force and speed of the load being lifted.
What is the importance of proper pulley alignment and tensioning?
Proper pulley alignment and tensioning are critical factors in ensuring the efficient and reliable operation of pulley systems. They play a significant role in maximizing power transmission, minimizing wear and tear, and maintaining the overall performance and longevity of the system. Here’s the importance of proper pulley alignment and tensioning:
1. Power Transmission Efficiency:
Proper pulley alignment and tensioning ensure optimal power transmission efficiency. When pulleys are misaligned or belts/chains are improperly tensioned, energy is wasted due to increased friction and slippage. This results in decreased power transfer and reduced system efficiency. By aligning the pulleys parallel to each other and applying the correct tension to the belts or chains, the system can achieve maximum power transmission, minimizing energy losses.
2. Belt/Chain Longevity:
Correct pulley alignment and tensioning contribute to the longevity of belts and chains. Misalignment and inadequate tension can cause uneven wear, excessive stretching, and premature failure of the belts or chains. Proper alignment and tension distribute the load evenly across the belts or chains, reducing stress and extending their lifespan. This helps to avoid unplanned downtime, maintenance costs, and the need for frequent belt/chain replacements.
3. Reduced Noise and Vibration:
Improper pulley alignment and tensioning can lead to increased noise and vibration in the system. Misaligned pulleys or loose belts/chains can cause excessive vibration, resulting in noise, equipment damage, and discomfort to operators or nearby personnel. Proper alignment and tensioning help minimize vibration, ensuring quieter operation and a more comfortable working environment.
4. System Reliability and Safety:
Proper alignment and tensioning contribute to the overall reliability and safety of pulley systems. Misaligned pulleys or loose belts/chains can lead to unexpected failures, breakdowns, or accidents. Over-tensioning can also cause excessive stress on components and increase the risk of system failures. By maintaining proper alignment and tension, the system operates within its design parameters, reducing the likelihood of unexpected failures and ensuring the safety of operators and equipment.
5. Improved Performance:
Correct pulley alignment and tensioning enhance the overall performance of the system. Properly tensioned belts or chains provide better grip and traction, allowing for smoother and more precise movement of the driven components. This results in improved speed control, reduced slippage, and enhanced accuracy in applications such as conveyor systems, machine tools, and automotive engines.
6. Maintenance and Cost Savings:
Proper pulley alignment and tensioning can lead to significant maintenance and cost savings. Well-aligned pulleys and correctly tensioned belts or chains experience less wear and require fewer adjustments. This reduces the frequency of maintenance tasks, such as belt/chain replacements, realignments, and re-tensioning. Additionally, by maximizing power transmission efficiency and minimizing wear, proper alignment and tensioning help reduce energy consumption and lower operating costs.
In conclusion, proper pulley alignment and tensioning are crucial for achieving optimal power transmission efficiency, prolonging the lifespan of belts or chains, reducing noise and vibration, ensuring system reliability and safety, improving performance, and realizing maintenance and cost savings. It is essential to follow manufacturer guidelines and perform regular inspections and adjustments to maintain proper alignment and tension in pulley systems.
How does a fixed pulley differ from a movable pulley?
A fixed pulley and a movable pulley are two distinct types of pulleys that differ in their design and functionality. Here’s a detailed explanation of their differences:
1. Design and Attachment: A fixed pulley is attached to a stationary structure, such as a ceiling or wall, using a mounting bracket or other means. It remains fixed in place and does not move during operation. In contrast, a movable pulley is attached to the load being moved and moves along with it. It is typically suspended by a rope or cable and can freely move up and down.
2. Mechanical Advantage: When it comes to mechanical advantage, a fixed pulley does not provide any advantage. It changes the direction of the force applied but does not reduce the effort required to lift the load. On the other hand, a movable pulley provides mechanical advantage by reducing the effort needed to lift the load. It distributes the load between the rope segments attached to the movable pulley and the fixed point, making it easier to lift heavy objects.
3. Force Distribution: In a fixed pulley, the force applied to one end of the rope or belt is redirected to change the direction of the force. The load is lifted by pulling the opposite end of the rope. In this case, the force required to lift the load is equal to the weight of the load itself. In a movable pulley, the load is attached to the movable pulley itself. The force required to lift the load is reduced because the weight of the load is distributed between the rope segments attached to the movable pulley and the fixed point.
4. Directional Change: Both fixed and movable pulleys are capable of changing the direction of the applied force. However, the primary function of a fixed pulley is to change the direction of force, while a movable pulley combines force direction change with mechanical advantage. The movable pulley allows the operator to exert force in a more convenient direction while requiring less effort to lift the load.
5. Applications: Fixed pulleys are commonly used in combination with other pulleys to create more complex systems, such as block and tackle arrangements. They are often used in scenarios where the primary objective is to change the direction of force. Movable pulleys, on the other hand, are frequently used in systems that require mechanical advantage or a reduction in the effort needed to lift heavy objects. They are often found in applications such as lifting systems, cranes, and elevators.
Overall, the key differences between a fixed pulley and a movable pulley lie in their design, mechanical advantage, force distribution, and applications. While a fixed pulley primarily changes the direction of force, a movable pulley combines force direction change with mechanical advantage, making it easier to lift heavy loads.
editor by CX
2024-04-03