Product Description


Company Profile

Hongxin is IATF16949 ceritficated and professional in designing and manufacturing molds,producing prototype, precision high-pressure aluminum alloy die casting parts,zinc alloy high-pressure die casting parts, precision CNC parts and precision plastic injection parts.

Product Description

Technical parameters Aluminum alloy die casting: ADC12/A360/A380/Alsi9cu3/Alsi12Cu1Fe/Alsi12Fe
Zinc alloy die casting:ZA3#,ZA5#,ZA8#
Plastic injection: PA6/PA66/ABS/PC/POM/PE
Aluminum alloy profile extrusion: 6061/6063/6082/7075
CNC machining and Turnning: 6061/6063/5052
Part Weight: From 10g to 50000g
Manufacture Process Drawing/Sample→Mold→Die casting→Deburring → Polishing→CNC Machining→Surface Finishing→ Assembly →Quality Inspection→Packaging→Delivery
Equipment Cold chamber die casting machine:180T/280T/350T/500T/800T/1250T
Injection machines: 88T/128T/160T/250T/380T/500T
CNC centers, CNC turning, CNC lathes, electrical pulse, line cutting, milling, drilling, grinding
Surface Treatment Trimming, Deburring,Polishing, Shot blasting, Sandblasting,Tumbling, Powder coating, Anodizing, Chrome, Electrophoresis, Passivation, Chemical coating
Software Pro-e/Solid work/UG/Auto CAD/CATIA
Products Application Automotive, Electric Motor, Light, Motorcycle,Bicycle, Power tool, Telecommunication, Gas Meter, Home Appliance Equipment, Compressors, Flow Meters, Pumps, Valves, Traffic Equipment, etc.

Our Advantages

  • Direct manufacturer, lower cost and quicker feedback
  • Specialist in prototyping, help you fast verify your design
  • Specialist in low quantity orders (no MOQ requirement for aluminum CNC parts)
  • Specialist in one-step production services from designing to assembly

Facility capability







Q1. Where is your company?
A:Our company is located in HangZhou City, ZHangZhoug province, which is known as the hometown of mold
Q2. Are you a factory or trading company?
A: We are a direct and professional factory and specialized in die casting industry since 2011.
Q3.Can your company make by sample?
A: Yes, we can make by both the sample and drawing.
Q4. What do I need to provide if I want to customize products and get a offer?
A: You can send 2D & 3D drawing(.step/.stp/.igs/.dwg is prefer) or samples and detailed requirement to our team.
Q5. What’s the process of Customizing product?
A: 1. Design of product drawings/samples. 2. Confirm the drawing with the customer. 3. Make the mold.  4. Send sample to customer for approval. 5. Receive confirmation from customer and series production. 6. Quality inspection 7. Packing and shipping.
Q6. Can your company make the mold?
A: Yes, design mold and make mold and fixture by ourselves.
Q7. Your company’s yearly production capacity?
A: 200 set of molds, 5 Million die casting parts and aluminum extrusion parts, 1 Million plastic injection parts
Q8. What is the minimum order quantity?
A:No MOQ for aluminum CNC parts. Low MOQ can be provided to help you test market.
Q9. How long is the lead time?
A: Depends on the order quantity. 1 week for prototypes,Normally 3-7 weeks for mold, 2-4 weeks for series production parts.
Q10. How do you package the products?
A: Bubble bag – Carton Box – Wooden pallet. Special packaging method can be accepted.
Q11. What is the payment method?
Q12.How is the quality?
A: Strict control before shipment.
Q13: What if I got some defective products?
A:If you find any defective products, we will exchange good products or refund you immediately. If you have any questions, please feel free to contact us.

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Die Casting Machine Type: Cold Chamber Die Casting Machine
Die Casting Method: Precision Die Casting
Application: Auto Parts
Machining: CNC Machining
Material: Aluminum Alloy
Surface Preparation: Spray Coating
US$ 5/Piece
1 Piece(Min.Order)

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Customized Request

tension pulley

How does the size and design of a tension pulley impact its performance?

The size and design of a tension pulley have a significant impact on its performance in various applications. Here’s a detailed explanation of how the size and design of a tension pulley influence its performance:

1. Size: The size of a tension pulley affects its mechanical advantage and the amount of contact area with the belt. A larger pulley diameter increases the effective radius around which the belt wraps, resulting in increased belt contact. This larger contact area enhances the grip between the belt and pulley, improving power transfer and reducing the likelihood of slippage. A larger tension pulley also allows for a more gradual bend radius, reducing stress concentrations on the belt and extending its lifespan.

2. Design: The design of a tension pulley encompasses various factors, including the shape, profile, and materials used. The design influences the pulley’s ability to guide the belt, distribute tension, and minimize wear. Here are some specific design considerations and their impact on performance:

a. Pulley Profile: The profile of a tension pulley refers to its shape and contour. Common profiles include flat, crowned, and v-shaped. A crowned pulley has a slightly curved surface, which helps center the belt and maintain proper tracking. This design reduces the risk of belt misalignment and enhances the pulley’s self-cleaning ability. V-shaped pulleys are often used with V-belts for increased grip and improved power transmission. The choice of pulley profile depends on the specific application and the type of belt being used.

b. Pulley Surface: The surface texture and finish of a tension pulley impact its frictional characteristics and interaction with the belt. A smooth and polished surface reduces friction, minimizing belt wear and heat generation. However, in certain applications where additional traction is required, such as in high-torque situations, pulleys with textured or coated surfaces may be used to increase grip and prevent slippage.

c. Pulley Material: The material used in the construction of a tension pulley affects its durability, wear resistance, and overall performance. Common materials include steel, cast iron, aluminum, and various engineering plastics. Steel and cast iron pulleys are known for their strength and durability, making them suitable for heavy-duty applications. Aluminum pulleys are lighter and corrosion-resistant, making them ideal for certain environments. Engineering plastics, such as nylon or polyurethane, offer advantages like reduced noise, improved friction, and resistance to chemicals or abrasion.

d. Pulley Bearings: The design and quality of the bearings used in the tension pulley impact its smoothness of rotation and overall performance. High-quality bearings with low friction enable efficient power transmission and reduce wear on the pulley and belt. Properly lubricated and sealed bearings also contribute to the longevity and reliability of the tension pulley.

e. Pulley Configuration: The configuration of tension pulleys in a system, such as the number of pulleys and their arrangement, can impact performance. Multiple tension pulleys can distribute the load more evenly across the belt, reducing localized stress and improving overall system efficiency. The proper positioning and alignment of tension pulleys also play a crucial role in maintaining belt tension, tracking, and minimizing wear.

In summary, the size and design of a tension pulley significantly affect its performance. The size determines the contact area with the belt and the mechanical advantage, influencing grip, power transfer, and belt lifespan. The design considerations, including pulley profile, surface texture, material selection, bearing quality, and configuration, impact belt tracking, tension distribution, wear resistance, and overall system efficiency. Choosing the appropriate size and design based on the specific application requirements is essential for maximizing the performance and longevity of tension pulleys.

tension pulley

How are tension pulleys used in the production of electronics and semiconductors?

Tension pulleys play a crucial role in the production of electronics and semiconductors, particularly in manufacturing processes that involve precision and delicate handling of materials. They are utilized in various stages of production to ensure accurate positioning, controlled movement, and proper tensioning of components and materials. Here’s a detailed explanation of how tension pulleys are used in the production of electronics and semiconductors:

1. Material Handling: Tension pulleys are often used in the material handling processes during the production of electronics and semiconductors. They are employed in conveyor systems to guide and tension delicate materials such as thin films, wafers, and flexible circuit boards. Tension pulleys help ensure smooth and controlled movement of these materials, minimizing the risk of damage or misalignment during transportation between different production stages.

2. Web Processing: In the production of electronic components such as printed circuit boards (PCBs) or flexible displays, tension pulleys are utilized in web processing systems. These systems handle continuous rolls of materials, such as films, foils, or substrates, and involve processes like coating, laminating, or die-cutting. Tension pulleys are critical in maintaining the proper tension of the web as it moves through various processing stations, ensuring precise alignment and consistent quality of the produced components.

3. Wire and Cable Manufacturing: Tension pulleys are extensively used in the manufacturing of wires and cables for electronic applications. They are employed in wire drawing machines and cable extrusion lines to maintain consistent tension on the wire or cable being produced. Tension pulleys help control the speed and tension of the wire or cable, ensuring uniform diameter, proper insulation, and reliable electrical properties throughout the manufacturing process.

4. Component Assembly: Tension pulleys are integrated into assembly systems for the precise positioning and alignment of electronic components. For example, in surface mount technology (SMT) processes, tension pulleys are utilized in pick-and-place machines to guide and tension the reels of surface mount devices (SMDs) as they are accurately placed onto PCBs. Tension pulleys play a crucial role in ensuring the controlled movement and accurate placement of components, contributing to the overall quality and reliability of electronic assemblies.

5. Wafer Processing: In semiconductor manufacturing, tension pulleys are employed in wafer processing equipment. They are used in systems such as chemical mechanical planarization (CMP) or wafer dicing machines. Tension pulleys help control the tension and movement of the wafers during processes like polishing, grinding, or dicing, ensuring precise material removal, accurate alignment, and minimizing the risk of wafer breakage or damage.

It is important to note that tension pulleys used in the production of electronics and semiconductors are often designed with precision and controlled motion in mind. They are typically made from materials that minimize particle generation or contamination and incorporate features such as low friction bearings or special coatings to ensure smooth operation without compromising the cleanliness of the production environment.

In summary, tension pulleys are extensively utilized in the production of electronics and semiconductors. They contribute to accurate material handling, controlled movement, and precise positioning of components and materials, ultimately enhancing the quality, reliability, and efficiency of the manufacturing processes in the electronics and semiconductor industry.

tension pulley

How do tension pulleys contribute to efficient power transmission?

Tension pulleys play a crucial role in ensuring efficient power transmission in mechanical systems. By maintaining proper tension in belts or chains, tension pulleys enable smooth and reliable transfer of power from the driving source to the driven components. Here’s a detailed explanation of how tension pulleys contribute to efficient power transmission:

1. Preventing Slippage: Tension pulleys help prevent belt or chain slippage, which can occur when there is insufficient tension. Slippage leads to a loss of power transmission efficiency as the rotational force fails to transfer effectively. Tension pulleys maintain optimal tension, maximizing the contact between the belt or chain and the pulley, thereby minimizing slippage and ensuring efficient power transfer.

2. Reducing Vibrations and Noise: Proper tensioning of belts or chains using tension pulleys helps reduce vibrations and noise in the power transmission system. When the tension is too low, the belt or chain may oscillate or produce excessive vibrations, leading to energy losses and increased noise levels. Tension pulleys maintain stable belt or chain tension, minimizing vibrations and noise, and enhancing power transmission efficiency.

3. Optimizing Power Transfer: Tension pulleys enable optimal power transfer by maintaining the desired tension in belts or chains. Adequate tension ensures that the force applied to the belt or chain is efficiently transmitted to the driven components, such as pumps, compressors, or generators. By optimizing power transfer, tension pulleys contribute to efficient operation and performance of the entire system.

4. Compensating for Belt or Chain Stretch: Over time, belts or chains can experience elongation or stretch due to wear or thermal effects. Tension pulleys are designed to compensate for this stretch by providing adjustable tension. They allow for tension adjustment to accommodate the elongation of belts or chains, ensuring consistent and efficient power transmission despite the stretching effect.

5. Facilitating Belt or Chain Engagement: Tension pulleys ensure proper engagement between the belt or chain and the pulley system. By applying tension, they ensure that the belt or chain remains securely in the pulley’s grooves or teeth, preventing disengagement or skipping. Secure engagement enhances power transmission efficiency by minimizing energy losses and maintaining a continuous and reliable transfer of power.

6. Adapting to Variable Load Conditions: Tension pulleys are designed to adapt to variable load conditions in power transmission systems. As the load changes, the tension pulleys can automatically adjust the tension in the belts or chains to compensate for the variations. This adaptability helps maintain optimal tension levels for efficient power transmission, regardless of the load fluctuations.

7. Extending Belt or Chain Life: By maintaining proper tension, tension pulleys help extend the life of belts or chains used in power transmission. Insufficient tension can cause premature wear and fatigue, leading to belt or chain failure. Conversely, excessive tension can lead to increased stress and accelerated wear. Tension pulleys ensure the right balance of tension, promoting longevity and reliability of the belts or chains, thus contributing to efficient power transmission over an extended period.

In summary, tension pulleys contribute to efficient power transmission by preventing slippage, reducing vibrations and noise, optimizing power transfer, compensating for belt or chain stretch, facilitating belt or chain engagement, adapting to variable load conditions, and extending the life of belts or chains. Their role in maintaining proper tension ensures smooth and reliable power transfer, maximizing the efficiency and performance of mechanical systems.

China factory OEM ODM Customized Aluminum Die Casting Housing of Belt Tension Pulley   belt pulley	China factory OEM ODM Customized Aluminum Die Casting Housing of Belt Tension Pulley   belt pulley
editor by CX


Tension pulley

As one of the tension pulley manufacturers, suppliers, and exporters of mechanical products, We offer cast pulleys and many other products.

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