Product Description
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Product Description
Our QLD series silent chain is a power transmission chain designed for high-speed and high-torque applications. It is known for its quiet operation, long life, and high efficiency.
The chain features a high-strength construction that allows it to handle heavy loads and high speeds without stretching or breaking.
When you need a specific design, we can provide customised solutions based on what you need. Whether you require specific features, plans, materials, or specifications, our team can work to ensure you get a chain that fully meets your needs.
Are you looking for other chains?
Leave your message below, and feel free to contact us!
FAQ
| Question 1: Are you a Manufacturer or a Trading Company? |
| Answer: We are a 100% chain manufacturer with 23 years of experience |
| Question 2: What should I provide to get a quotation? |
| Answer: 1. Type of the chain (with photos if available) 2. Pitch of the chain 3. Width of the chain 4. Length and quantity of the chain 5. Other specific requirements |
| Question 3: How long is your manufacturing and delivery time? |
| Answer: Products are usually finished in 2 weeks, depending on the type and quantity. Also, please get in touch with us to check the delivery time to your destination. |
| Question 4: How long is your guaranteed time? |
| Answer: We offer a three-year guarantee if you purchase chains and matched sprockets together. If you need chains only, a one-year guarantee can also be confirmed. |
| Question 5: Trade terms and Payment terms? |
| Answer: We accept EXW, FOB, DDU, Door to Door. Payment terms, such as T/T, L/C, and Western Union, are acceptable. We also provide the service of Online Trading in this B2B platform. |
Company Profile
| Standard or Nonstandard: | Standard |
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| Application: | Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Food Machinery, Marine, Mining Equipment, Agricultural Machinery |
| Structure: | Tooth Chain |
| Samples: |
US$ 100/Meter
1 Meter(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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How does the choice of chain coating impact the performance of a transmission chain?
The choice of chain coating can significantly influence the performance and durability of a transmission chain. Here’s a detailed answer to the question:
1. Corrosion Resistance: Chain coatings, such as zinc plating or polymer coatings, provide a protective layer that prevents the transmission chain from corroding when exposed to moisture, chemicals, or harsh environments. Corrosion can weaken the chain, leading to premature failure and reduced performance. A proper chain coating can extend the chain’s lifespan and maintain its functionality.
2. Wear Resistance: Some chain coatings, such as those with specialized polymers or ceramic particles, offer enhanced wear resistance. These coatings reduce the friction and abrasion between the chain and the sprockets, minimizing wear on the chain’s pins, bushings, and rollers. By reducing wear, the chain’s performance and longevity are improved, resulting in less frequent replacements and lower maintenance costs.
3. Reduced Friction and Energy Loss: Certain chain coatings are designed to reduce friction between the chain and the sprockets, resulting in smoother operation and improved energy efficiency. The reduced friction leads to lower energy loss during power transmission, which is especially beneficial in applications where energy savings are a priority.
4. Noise Reduction: Some chain coatings incorporate noise-dampening properties, which can help reduce the noise generated during chain operation. This is particularly advantageous in applications where noise reduction is essential, such as in residential or office settings, or in machinery that requires quiet operation.
5. Compatibility with Lubricants: The choice of chain coating should be compatible with the lubricants used in the application. Certain coatings have self-lubricating properties, allowing for reduced reliance on external lubrication. In contrast, other coatings may require specific lubricants to ensure optimal performance and longevity of the chain.
6. Environmental Considerations: Depending on the application, there may be specific environmental regulations or requirements to consider. Chain coatings that are environmentally friendly, such as those free of harmful substances or compliant with specific industry standards, can help meet these requirements and ensure sustainable operation.
It’s important to select the appropriate chain coating based on the specific application’s demands, including environmental conditions, load capacity, operating speed, and lubrication requirements. Consulting with experts or manufacturers can help determine the most suitable chain coating for optimal performance, durability, and longevity of the transmission chain.

Can transmission chains be used in mining or heavy-duty industrial applications?
Transmission chains are commonly used in mining and heavy-duty industrial applications due to their durability and strength. Here’s a detailed answer to the question:
1. Robust Construction: Transmission chains designed for mining and heavy-duty industrial applications are built to withstand extreme conditions and heavy loads. They are constructed using high-quality materials and undergo rigorous testing to ensure they can handle the demanding environments and intense operating conditions.
2. High Load Capacity: Mining and heavy-duty industrial applications often involve transporting heavy loads or operating equipment under significant stress. Transmission chains used in these applications are engineered to have high load capacity, allowing them to reliably transmit power and handle the substantial forces encountered in such operations.
3. Resistance to Wear and Abrasion: Mining and heavy-duty industrial environments can be abrasive and cause rapid wear on components. Transmission chains used in these applications are designed with excellent wear resistance to withstand the abrasive nature of the materials being handled. They are often treated with specialized coatings or surface treatments to enhance their resistance to wear and extend their lifespan.
4. Corrosion Resistance: Mining operations and heavy-duty industrial settings may expose transmission chains to corrosive substances or environments. To combat corrosion, transmission chains used in these applications are often made from materials such as stainless steel or treated with anti-corrosion coatings. This ensures the chains can maintain their integrity and performance over time, even in harsh conditions.
5. Reliability and Durability: Mining and heavy-duty industrial applications require reliable and durable equipment to minimize downtime and maximize productivity. Transmission chains are known for their reliability and ability to operate in challenging conditions, making them well-suited for these demanding applications. Proper maintenance and regular inspections are necessary to ensure optimal performance and maximize the lifespan of the chains.
When selecting transmission chains for mining or heavy-duty industrial applications, it’s essential to consider factors such as load capacity, speed, environmental conditions, and compatibility with other equipment. Consulting with experts or manufacturers specializing in chains for these specific applications can help ensure the best chain selection for optimal performance and longevity.

Are there any industry standards or certifications for transmission chains?
Yes, there are industry standards and certifications that govern the manufacturing, quality, and performance of transmission chains. Here’s a detailed explanation:
1. ANSI/ASME Standards: The American National Standards Institute (ANSI) and the American Society of Mechanical Engineers (ASME) have developed standards for transmission chains, such as ANSI/ASME B29.1 for roller chains and ANSI/ASME B29.3 for pintle chains. These standards define the dimensions, materials, tolerances, and performance requirements for various types of transmission chains.
2. ISO Standards: The International Organization for Standardization (ISO) has also established standards for transmission chains, including ISO 606 for short-pitch precision roller chains and ISO 1275 for short-pitch conveyor chains. These standards ensure global consistency and compatibility in terms of chain dimensions and performance.
3. DIN Standards: In Germany, the Deutsches Institut für Normung (DIN) has developed standards for transmission chains, such as DIN 8187 for roller chains and DIN 8181 for bush chains. These standards are widely used in Europe and define the specifications and requirements for chain design and performance.
4. Certifications: In addition to standards, there are certifications that validate the quality and performance of transmission chains. One notable certification is the ISO 9001:2015, which demonstrates that the manufacturer has implemented a quality management system and meets the specified criteria for consistent product quality.
It is important to note that adherence to these standards and certifications is voluntary but highly recommended. Choosing transmission chains that comply with recognized standards and certifications ensures that they have been manufactured and tested to meet specific criteria for performance, reliability, and durability.
When selecting transmission chains, it is advisable to look for products from reputable manufacturers who prioritize quality and compliance with industry standards. This helps to ensure that the chains you choose will meet the necessary requirements for your application and deliver reliable performance over time.


editor by CX 2023-12-07