Product Description
Product Description
Tuohai is a professional knotted chain manufacturer in China, we have more than 40 knotted production lines, which can provide more than 100tons of various knotted chains per month.
Stainless Steel Knotted Chain is 1 of our main products. Since 1998, our knotted chains have been exported to more than 20 countries around the world, and more than 2000 customers have purchased our products.
We can also provide a variety of customizations, including size, shape, packaging, etc., to ensure that the knotted chain can meet the needs of the customer’s home market.
Contact Us to Get the Best Quote Now.
Product Parameters
Material
According to your requirements, we provide various stainless steel for the double loop chain:
- Stainless Steel 201
- Stainless Steel 304
- Stainless Steel 316
- etc.
Or we can provide other materials according to your requirements.
Size
We provide USA standard and DIN5686 of stainless steel knotted chains:
We can also provide custom double-loop chains of any size according to customer requirements, you just need to send us detailed drawings or samples.
Surface Treatment
| For Stainless Steel Double Loop Chain | |
| Polishing | Polishing is the most used surface treatment for stainless steel double loop chains |
| Electrophoresis | The surface treatment of electrophoretic surface treatment can also be used on the stainless steel double loop chains |
If there is no special request, the surface treatment of our stainless steel double loop chain is polishing by default.
We can also provide the surface treatment of electrophoretic.
Production Cycle
Tuohai has more than 40 production lines for the knotted chains, which can provide more than 100tons per month.
For the sample order, we can deliver within 3 working days.
For normal orders, the delivery time is around 30 days.
The delivery time for bulk orders will be determined separately according to the order situation and quantity.
Packaging & Shipping
Packages for Knotted Chains
According to the different needs of customers, we provide the following packaging for the selection:
- Reel Package
The color of the reel can be customed.
- Plastic Pail
We provide round pails, square pails, iron pails, paper pails, etc., and the color of the cover can also be customed.
- Bundle
The bundle package is 1 of the most affordable packages, suitable for storage and transportation in large quantities.
- PP bag
The PP bag is a self-sealing bag, which has high sealing performance and is more suitable for long-term storage.
- Carton
The size of the carton packaging can be customized according to customer requirements and can be printed with patterns or logos.
- Wooden Box
Wooden boxes are generally used for outer packaging, which is safer during transportation and will not be damaged
Shipping Method
If you don’t know how to ship goods back from China, or you are sourcing goods from China for the first time, please don’t worry, we have our own freight forwarder which can deliver your cargo to any port or location you designate.
We can deliver the knotted chains by sea, by air, or by train, according to your requirement.
For the sample order, we can also send it by express, UPS, FedEx, DHL, and EMS are all OK.
Our Advantages
Great Location
Tuohai is located in 1 of the stainless steel production bases in China and can get better stainless steel materials.
We are only 2 hours away from ZheJiang Port and HangZhou Port, the delivery is very convenient and can be delivered directly to the port.
Strong Technical Force and Production Equipment
Tuohai has an experienced team of engineers and has a number of independent patents including production and shape patents.
Our production line is fully automatic production, can realize 24-hour unattended production, which can save a lot of labor costs, greatly improve production efficiency and shorten the production cycle.
Strict Quality Control
Tuohai has strict quality control for all of our products.
When purchasing raw materials, you must check relevant certificates such as material reports, and carefully select high-quality materials.
There are quality inspectors in the production workshop to spot-check each process.
After the production is completed, each batch of products will be sampled, and the inspection content includes tensile test, salt spray test, and inspection of surface treatment, size, etc.
Multiple Quality Certifications
Tuohai has ISO 9001, SGS, and other certifications, and can be inspected according to customer requirements, which can purchase with confidence.
All our products can be subjected to tensile tests and salt spray tests according to customer requirements, and a detailed report will be issued.
Accept All Kinds of Customization
We accept various customizations for the double loop chains, including:
- Size
You can custom the standard and nonstandard knotted chains in TUOHAI, we can provide the wire diameter of knotted from 1.0mm to 5.0mm.
- Shape
We have experienced engineers who can easily adjust the machine to provide you with various shapes of knotted chains.
- Package
We provide several packages for the knotted chains, including reel, bundle, PP bag, pail, carton, etc. you can also customize your special package, just need to send us your package sample or photos, then we will provide you the same one.
Transaction & Payment Methods
Transaction Methods
According to the customer’s requirements, TUOHAI accepts the transaction method including FOB, CIF, EXW, DDU, etc.
Payment Methods
For regular orders, we accept payment via T/T, L/C, etc.
For the sample orders, if the sample you need is our regular product, or the product is in stock, then the sample is free, you just need to pay the freight.
If the sample needs to be customized, you need to pay the sample fee. The sample fee will be refunded after placing the order, in addition to T/T, you can also pay the sample fee by Paypal, Western Union, etc.
After Sales Service
Tuohai has a professional after-sales team that is 7*24 online, if there have any questions after receiving the goods, you can contact us at any time.
After receiving the feedback from customers, we will verify and confirm with the production workshop immediately. If there is a quality problem, we will find out the cause of the problem as soon as possible, and propose a solution within 3 working days.
FAQ
Q: What kinds of knotted chains can you produce?
A: Tuohai can produce stainless steel knotted chains, iron knotted chains, and brass knotted chains, or if you need the knotted chain of other material, please contact us, and our engineers will advise on your requirements.
Q: What are the wire diameters of the knotted chains you can produce?
A: Tuohai can produce the wire diameter of knotted chains from 1.0mm to 5.0mm.
Q: What surface treatment you can provide for the knotted chains?
A: We can provide the surface treatment of polishing and electrophoresis for stainless knotted chains, and electrophoresis, powder coating, and electroplate(zinc-plating, brass-plating, nickel-plating, chrome-plating, etc.) for steel knotted chains.
Q: Can I get the sample?
A: Yes.
Q: How do I customize my knotted chains?
A: You just need to send us the detailed drawing of the knotted chains you need or send us a sample directly, and we will produce it according to the drawing or sample.
Q: May I customize my special packages for knotted chains?
A: Yes, we can provide the customized service of various packaging, including the size, shape, color, print patterns or logos on the package.
Q: How long will the delivery time be?
A: It depends on quantity, the general delivery time is about 20 to 30 days, and large orders need to be reconfirmed.
Q: What surface treatments do your knotted have?
A: We can provide surface treatment such as polishing, zinc plating, copper plating, chrome plating, and electrophoresis for knotted chains.
Q: What payment methods are accepted?
A: We accept T/T, L/C, etc.
Q: What are the transaction methods?
A: We accept FOB, CIF, DDU, DDP, etc.
Q: Where is your factory?
A: Our factory is in HangZhou City, ZheJiang Province.
| Usage: | Dedicated Special Chain, Decorative Chain |
|---|---|
| Material: | Stainless steel |
| Surface Treatment: | Polishing |
| Feature: | Rust and Corrosion Resistant |
| Chain Size: | Customization |
| Structure: | Weldless Chain |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Can double chains be used in low-temperature or cryogenic environments?
Double chains are typically made from materials that can withstand a wide range of temperatures, including low-temperature and cryogenic environments. The suitability of double chains for such conditions depends on the specific material used in their construction.
Stainless steel and certain alloys are commonly used materials for double chains in applications where low-temperature or cryogenic conditions are present. These materials offer excellent resistance to corrosion, maintain their mechanical properties at low temperatures, and provide sufficient strength for power transmission even in extreme cold environments.
When using double chains in low-temperature or cryogenic settings, it is essential to consider the following factors:
- Mechanical Properties: Verify that the selected chain material retains its strength and flexibility at the operating temperature to ensure reliable performance.
- Lubrication: In extreme cold conditions, traditional lubricants may become less effective or even freeze. It is crucial to use appropriate lubricants that remain functional at low temperatures.
- Environmental Sealing: For cryogenic environments, proper sealing and protection may be necessary to prevent the intrusion of moisture or other contaminants that could affect chain performance.
- Material Selection: Consult with chain manufacturers or experts to select the most suitable material for the specific low-temperature or cryogenic application.
Overall, when the right materials and precautions are taken, double chains can be successfully used in low-temperature and cryogenic environments, offering reliable and efficient power transmission even under extreme cold conditions.
What are the limitations of using double chains in certain applications?
While double chains offer many advantages, there are some limitations to consider when using them in certain applications:
- Space Constraints: Double chains require a larger pitch compared to standard roller chains, which means they may not be suitable for applications with limited space or tight clearances.
- Weight: Double chains are typically heavier than their single-chain counterparts. In applications where weight reduction is critical, double chains may not be the ideal choice.
- Cost: Double chains are generally more expensive than standard roller chains due to their increased size and material requirements. This cost factor should be considered when selecting a chain for an application.
- Installation Complexity: Due to their larger size and additional strands, installing and aligning double chains can be more challenging and time-consuming compared to single chains.
- Operational Speed: Double chains may not be suitable for very high-speed applications where centrifugal forces and dynamic stresses can impact their performance and reliability.
- Specialized Sprockets: Double chains often require specially designed sprockets to accommodate their larger size and pitch. Availability and compatibility of these sprockets may vary depending on the application.
It’s important to carefully evaluate the specific requirements and constraints of the application when considering the use of double chains. While they offer increased load capacity and durability, their limitations related to space, weight, cost, installation complexity, operational speed, and specialized sprockets should be taken into account to ensure the best chain selection for the intended application.
How do you select the right size and pitch for a double chain?
Choosing the right size and pitch for a double chain involves considering several factors to ensure proper fit and optimal performance in the intended application. Here are the key steps to selecting the right size and pitch:
- Identify the power transmission requirements: Determine the amount of power that needs to be transmitted by the chain, including the torque and speed requirements of the application. This information will help in selecting a chain that can handle the load and operate at the desired speed.
- Determine the chain type and standards: Double chains are available in various types and standards, such as ANSI (American National Standards Institute) and ISO (International Organization for Standardization). Identify the specific chain type and standard required for your application.
- Calculate the chain pitch: The chain pitch refers to the distance between the center of one roller to the center of the next roller in the chain. It is crucial to select the correct chain pitch to ensure smooth operation and proper engagement with the sprockets. The chain pitch is typically specified by the chain manufacturer and is measured in inches or millimeters.
- Consider the available space: Evaluate the available space in the application for accommodating the chain and sprockets. Ensure that there is sufficient clearance for the double chain to fit properly without interference or excessive tension.
- Consult chain manufacturer’s specifications: Refer to the manufacturer’s catalog or technical specifications to determine the appropriate chain size and pitch options available for the specific double chain series or type.
- Application-specific considerations: Take into account any specific requirements of the application, such as environmental conditions (temperature, humidity, presence of contaminants), load variations, operating conditions (continuous or intermittent operation), and the desired service life of the chain. These factors may influence the selection of a suitable chain size and pitch.
It is important to note that selecting the right size and pitch of a double chain requires careful consideration of the application’s requirements and consulting the manufacturer’s guidelines and recommendations. Improper sizing can lead to premature wear, decreased performance, or even failure of the chain system. Consulting with a knowledgeable engineer or chain supplier can help ensure an appropriate selection for the specific power transmission needs.
editor by CX 2023-07-20