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:

  1. Stainless Steel 201
  2. Stainless Steel 304
  3. Stainless Steel 316
  4. 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:

 

  1. Reel Package
    The color of the reel can be customed.
     
  2. Plastic Pail
    We provide round pails, square pails, iron pails, paper pails, etc., and the color of the cover can also be customed.
     
  3. Bundle
    The bundle package is 1 of the most affordable packages, suitable for storage and transportation in large quantities.
     
  4. PP bag
    The PP bag is a self-sealing bag, which has high sealing performance and is more suitable for long-term storage.
     
  5. Carton
    The size of the carton packaging can be customized according to customer requirements and can be printed with patterns or logos.
     
  6. 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:
 

  1. 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.
     
  2. Shape
    We have experienced engineers who can easily adjust the machine to provide you with various shapes of knotted chains.
     
  3. 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)

|
Request Sample

Customization:
Available

|

Customized Request

chain

Roller Chain Basics

Before choosing the right roller chain for your machine, it is necessary to learn some basics. Learn about sprockets, tensile strength, pitch, and width. Read this article to learn more. It will help you make an informed decision. Getting the right product is critical, but it’s not always as simple as choosing a brand name. You need to choose a company that supports its products and provides good service.

Roller sprocket

If you are planning to purchase roller sprockets for your application, you should first look at the various types available. Sprockets available for single-strand roller chains are manufactured by Boston Steel – Type B sprockets are drilled to size. They are available in 1/4, 3/8, 1/2, 5/8, 3/4 and 1″ pitch sizes.
The diameter of the sprocket is important when choosing the right sprocket for your application. Using a caliper to measure the diameter of a toothless plate is a good way to determine the exact size of the sprocket. A caliper is the diameter of a plate without teeth. On Type B and C sprockets, the hub diameter measures the thickness of the hub.
Another type of sprocket is the steel split sprocket, which is split in diameter. This type is easy to install and remove, and is held together by bolts in the hub. Typically, split sprockets have chain pitches ranging from 40 to 240 and bores ranging from 3/4″ to 6″. The split sprockets are designed with one pointing towards the ceiling and the other two parallel to the floor.
When shopping for sprockets, it is important to remember that they are designed specifically for a specific chain. All chains are manufactured to specific standards. In the United States, the most common standard is ANSI. The chain pitch is the distance between the center of each pin and the center of the next pin. In the US, the standard is always measured in eight-inch intervals.
In addition to sprocket size, sprocket pitch and the surface area also affect chain life. Unlike belt sprockets, which are made of forged steel, the teeth on roller sprockets are stamped from steel sheet or pressed from powdered metal. The harder the teeth, the longer the chain will last.

Roller chain pitch

The pitch of a roller chain is the distance between the sprocket and the pin. The smaller the thread pitch, the smaller the bushing wear. Generally speaking, the smaller the pitch, the longer the life of the chain. For best performance and longest life, manufacturers recommend a minimum chain pitch of 2% to 3%. Chain pitch is important to ensure proper performance, and the manufacturer recommends that you replace the chain when it reaches 2% to 3% of normal.
To determine the correct chain pitch for a particular chain, first determine the sprocket size and pitch. Pitch is the distance between pin centers, measured in 1/8 inch increments. The pin diameter of the chain is also important. If you’re not sure about the pin diameter of your chain, measure a few links to get a good average reading. Alternatively, use a caliper to measure the inside diameter of the sprocket and count the number of teeth.
When sizing a sprocket, measure the chain between the gears with a caliper and compare it to the measurements on the chain size chart. Make sure you have checked all the specs and checked the correct chain pitch. Then, choose the correct chain pitch for your needs. This is a critical step in choosing the right chain. So get the correct pitch for your roller chain. Correct pitch helps ensure maximum performance and safety.
To identify a specific type of roller chain, measure its tensile strength. This represents the amount of load the chain can withstand before breaking. Another key parameter to consider is fatigue strength. Chains with high fatigue strength are more resistant to rust and wear than chains with low fatigue strength. The numbers on the right in the standard numbering represent normal or light duty chains, while the numbers on the left represent the pitch of heavy-duty chains.
Double pitch roller chains are a variant of single pitch chains. They are manufactured according to ISO 606 and meet the same standards as single pitch chains. They are mainly used in applications with lower requirements for speed and power transmission. The plates of double pitch roller chains are also longer than single pitch chains. The double pitch drive series is also used for elevator and long conveyor drives. There are three main types of roller chains: single-pitch chains, double-pitch carriers, and oversized rollers.

Roller chain width

When buying a roller chain, one of the first decisions you must make is its width. To make this determination, you need to measure the overall width of the chain, the diameter, and the width of each roller. You must also know the height and thickness of the board. After taking these measurements, you can start shopping for the perfect roller chain. But before you buy a new chain, it’s important to know what to expect from the chain itself.
There are many different types of roller chains. These chains are available for ANSI and metric measurements. They come in single-stranded and double-stranded variants. They are usually used for power transmission. Other types include agricultural, automotive, conveyor, multi-strand, and four-strand chains. These charts also include a chart so you can easily see the exact size you need. Listed below are some of the benefits of buying a roller chain.
Roller diameter and pin diameter are important factors in choosing the correct chain width. The width of the chain is the nearest binary fraction of 5/8 of an inch. It should be at least half the thickness of the sprocket, and the plate thickness is one-eighth the width of the chain. Overweight chains are indicated with the suffix H. The pitch and width of the chain are determined by the working load and machine speed.
The outer links of the roller chain are called pin links. These pins are inserted into the bushings of the adjacent roller links. They are held in place by cotter pins. Pin links are usually pressed into the pins of heavy-duty chains. These pins are used to hold the rollers in place. However, these pin chains can reduce the power rating of roller chains by up to 20%.
The ANSI 29.1 Steel Chain Specification specifies a minimum pitch in inches and ultimate strength of 12,500 x pitch in inches. At the same time, the O-ring chain greatly reduces wear due to its lubricating effect. O-ring and X-ring chains contain a lubricant injected by vacuum when riveting the chain together. Transmission chains are tested and governed by standards bodies such as ANSI. In 2011, the American Society of Mechanical Engineers developed a standard for precision power transmission chains.
chain

Roller chain tensile strength

One of the most important indicators of roller chain strength is tensile strength. This measurement refers to the amount of load the chain can withstand before breaking. Another measure, called fatigue strength, refers to the maximum load a chain can withstand before it breaks. The strength of a roller chain depends on its size, the quality of the steel used in its construction, and the heat treatment. There are also differences in the types of shot peening used to treat steel, pitch holes, and link plates.
When choosing a roller chain, the workload is critical. This is the maximum load the chain can withstand before fatigue failure occurs. This measurement is critical because it helps determine the type of load applied to the chain. When deciding which roller chain to buy, be sure to consider the mechanical type and desired strength. Then, make sure it meets strength and load-carrying capacity requirements.
The ultimate tensile strength of a roller chain is based on the manufacturer’s recommended maximum tensile strength. However, the actual tensile strength may be higher or lower than this value. The working load limit of a roller chain can also be calculated by multiplying the chain diameter by the grade. The working load limit of a chain is the highest tension it can withstand before breaking. This value is usually expressed in points.
The maximum tensile strength of roller chains varies by chain type. The single-strand heavy chain has thick side plates for higher shock loads. Single strand heavy-duty roller chains, also known as “bushing” roller chains, are also available. Double-stranded heavy chains are structurally similar, but they have two layers of steel connected by pins that are nearly twice as strong as standard roller chains.
The tensile strength of a single-strand roller chain is approximately 500 tons. In comparison, a single-chain blockchain has a tensile strength of 900. The tensile strength of the two is similar, and it is not recommended to choose one or the other. Although steel and titanium chains are considered the strongest materials for roller chains, these materials are not magnetic.

China best Factory Outlet Stainless Steel Double Loop Chain Knotted Chain for Swing Set   with Best SalesChina best Factory Outlet Stainless Steel Double Loop Chain Knotted Chain for Swing Set   with Best Sales
editor by CX 2023-05-16