Tag Archives: plastic roller conveyor chain

China factory CZPT HS-820-K325 Straight Running Plastic Chain Plastic Slat Top Chain for Chain Conveyor System roller chain sprocket

Product Description

Data(HS-820-K325)Side Flexing Flexible Chains
Belt Material Width W Working Load  Radius Reverse Radius Weight
mm inch N(21°C) lbs(21°C) mm inch mm inch kg/m
POM 82.6 3.25 1230 276 50 1.97 0.83

 

Avantages of the CZPT products

1.CZPT modular conveyor belt has more than 10 times service life,long life time and reducing replacement cost than traditional conveyor belt.

2.CZPT modular conveyor belt is easy to assemble, allowing only the replacement of damaged parts, easy to replace, saving maintenance time and costs.

3.CZPT modular conveyor belt has strong wear resistance, high temperature resistance, cold resistance and oil resistance.

4.CZPT modular conveyor belt is easy to clean, farewell to the propagation of bacteria, especially suitable for application in food industry.

5.CZPT modular conveyor belt in food and non-food industry, it plays an important role in the character of durability,low maintenance cost and easy to clean.

6.CZPT has agents in many countries and can provide good after-sales service.
7.CZPT not only has a complete production line to meet different application needs, but also can provide comprehensive product knowledge and experience. After 20 years of innovative research and development, we can provide more than 5000 kinds of solutions to provide perfect support for you in the field of transportation.

Application
Meat& Poultry& Seafood industry
Simple design makes the belt easy to assemble, dismantle and clean
Add antibiotic in additional to meet the strict request with food hygiene
The quantity of colon bacillus and gold staphylococcus is about 0.125 times of that in PVC conveyor belt
 

Cooperation Case

 

We Cooperated with DHL & Amazon to Help Them Solve Multi-scenario Application Parcel Sorting

Global cooperation broke through 50+ agent service providers

and signed strategic cooperation agreements with “Safari Belting Systems” in the United States

“HONG’S BELT Branches” in Europe, and “HONG’S BELT Branches” in India

 

 

Exhibitions around the world

Every year CZPT will go to all over the world to participate in exhibitions

We have served projects in more than 120 regions and countries with global delivery capabilities

Hong’s Belt team can provide customers with more than 5,000 solutions

 

Factory

HONG’S BELT

Xihu (West Lake) Dis. Xinhai (HangZhou) Technology Co., Ltd is a leading high-tech company providing intelligent conveyor solutions. We have a modern industrialized manufacturing area of 100,000 square CZPT for the production of modular plastic belts and conveying systems solutions.

 

 

Hong’sbelt Group currently has more than 1,000 employees, including more than 100 R&D teams, more than 500 production and functional departments, and about 300 sales and sales support departments. The sales points are distributed on all continents of the world.Realize Automatic and Intelligent.

We developed a fully integrated industrial chain with independent core technology, key components, leading products and conveyor systems solutions.

 

Certificate

 

We hold more than 400 national authorized patents and software certifications

Allseries of products have obtained the US “FDA” food grade certification And “EU” certification in Europe

Obtained “ISO9001-2008” quality management system certification

FAQ

Q: Are you a trading company or manufacturer?
A: We are a manufacturer of modular belt, chains belt and conveyor components, with head office in HangZhou, China, and 2 big factories located in HangZhou and HangZhou.

Q: Are HONGSBELT  products in accordance with FDA regulations and EU Directives?
A: Our standard materials (PP, POM, PE, PA) comply with the FDA regulations and EU Directives. A letter of assurance can be made available on demand.

Q: Can we use HONGSBELT  Modular Conveyor Belt in corrosive environment?
A: HONGSBELT belts can be used in medium to severe CZPT applications, however, special product recommendations and conveyor design guidelines must be followed. More information, pls contact our online Customer Service or email to HONGSBELT Team.

Q: What is the temperature range for the belt material?
A: HONGSBELT belts offers various materials suitable for operation in temperatures ranging from -60 °C to 260 °C. Specific material should be chosen based on your operating temperature.

Q: What is the real meaning of the belt strength?    
A: The belt strength is the maximum tension (per foot or meter of width) the belt can continuously run at.

Q: How long will it take me to get quotation?
A: You will always receive any requested quote by the end of the next working day at the latest, but often quotes are emailed to you before you hang up the phone.

Material: POM–Dp,POM-Lf
Structure: Top Chain
Surface Treatment: Plastic
Chain Size: 3.048m/Box
Feature: Fire Resistant, Oil Resistant, Heat Resistant
Pin Material: Cold Rolled Austenitic Stainless Steel
Samples:
US$ 12/Meter
1 Meter(Min.Order)

|
Request Sample

chain

Types of Roller Chains

There are several types of roller chains available. These chains have different properties and serve different purposes. Here you will learn about diamond roller chains, X-ring and O-ring chains, inverted tooth chains, and self-lubricating chains. You can choose the type that best suits your needs by reading this article. It will also help you make an informed decision. Buying the right roller chain for your needs is easy. Hope this article is helpful to you!

Diamond roller chain

Diamond roller chains are more efficient than other chains and can significantly extend chain life. The superior design of the chain prevents internal rust from seeping out. Additionally, Diamond ACE features a corrosion-resistant exterior and a zinc-nickel pre-assembled coating that provides extended corrosion protection and wear resistance. These features reduce chain downtime and labor costs, saving a building materials manufacturing company nearly $33,000 over the life of its machines.
Diamond series chains lead the industry in quality and durability, with industry-leading tensile strength and the lowest total cost of ownership. With a diverse product portfolio including standard chains, specialty chains, and custom chains, the company is sure to provide the right chain for your application. The company also offers a wide range of accessories for a variety of machinery. For more information, please visit the company website.
As one of the leading manufacturers of roller chains, the CZPT Company offers unparalleled expertise and wear resistance in the power transmission market. CZPT is trusted by leading industries and provides the highest return on investment. The diamond is a symbol of strength and durability, and the company chose it as the company’s trademark to convey its core values. CZPTs can last up to 100 years or more in harsh conditions, even in underwater environments.

Self-lubricating chain

Self-lubricating roller chains are designed to increase performance while maintaining a high level of cleanliness. These chains are made of sintered alloy bushings impregnated with lubricant and pins specially treated to release oil when necessary. These chains have a long service life and are suitable for environments where regular lubrication is difficult. Below are the benefits of self-lubricating roller chains.
Maintenance-free self-lubricating roller chains are the perfect replacement for standard roller chains. They are suitable for packaging, printing, textile, and sawmill applications. These chains reduce downtime and increase productivity. Furthermore, they reduce the risk of contamination. Another advantage is that there are many types of self-lubricating roller chains to choose from, allowing you to choose the one that best suits your needs. To learn more about these benefits, read the Maintenance Free Roller Chains Market Report published by Dataintelo.
CAN-AM self-lubricating roller chains ensure stick-free operation. These chains are available in ANSI/BS standard and double pitch variants. They feature oil-impregnated bushings and preloaded sintered steel bushings for long life. These self-lubricating roller chains are drop-in replacements for standard roller chains and run on standard roller chain sprockets.<br/

X-Ring and O-Ring Chains

Both O-ring and X-ring roller chains are sealed and unsealed. You’ll find them on vintage bikes and small economy cars. Other applications include bulldozer treads and conveyor belts. Standard chains are made of simple plain bearings that require lubrication every few hundred miles. While the former is the most affordable type of roller chain, they do require more maintenance than O-rings.
The main difference between the two types of chains is the friction and cost they generate. X-rings are slightly less expensive, but they create less friction than O-rings. X-rings are a more affordable option for road riders, while O-ring chains are more expensive for off-road racers. In some cases, X-ring and O-ring roller chains can be distinguished by the price tag alone.
Both X-ring and O-ring roller sprockets are available in a variety of styles. The two styles offer comparable performance, but there are some key differences to consider. X-rings are generally better for longer travel as they offer greater durability and performance. O-rings are usually more expensive than X-ring chains, but if you’re thinking about long trips, they’re a great option.

Reverse chain

Inverted roller chains are often referred to as silent chains. They have two protrusions on each board. The outer surface is ground to include an angle of sixty or seventy degrees. These protrusions about the working surfaces of the sprocket teeth. The inner surface or shape of the sprocket can clear the sprocket. This produces a silent but still valid chain. This type of chain is used in transmissions to move heavy objects.
There are three basic types of inverted toothed roller chains. Simple chains are single chains, while double and triple chains have two or three strands. In these types of chains, the pins pass through-hardened steel bushings at the ends of the links. The main difference between these types is their size. If you are not sure what size you need, first calculate the capacity of the chain. You might be surprised to learn that the smaller the diameter the better.
The number of links in a reverse roller chain determines the frequency of vibration. The frequency depends on the size of the chain and the length of the chain between the sprockets. The shorter the chain, the bigger the “pull” – the up-and-down jitter caused by the sprocket. This causes additional peak loads on the drive and shortens its life.

PEER Chain’s Heavy Duty Series Double-Stranded Roller Chains

Heavy-duty double-strand roller chains are ideal for industrial and agricultural use as they provide extra stability and strength. PEER Chains manufactures chains in various lengths and pitches and offers different accessories including sprockets and pre tensioned chains. These chains are also available in a variety of different alloys and grades. Listed below are some of the most common uses for heavy-duty double strand roller chains.
Heavy-duty PEER double-strand roller chains are available in a variety of styles and types, including the HKK NICKEL PLATED series. These chains are best suited for outdoor and mildly corrosive applications. They use a patented process to increase fatigue strength and reduce initial elongation. In addition, HKK double pitch twin-strand roller chains are lighter and less expensive than standard roller chains.
The report also highlights the competitive environment and the latest market trends. The report identifies key players in the Roller Chains industry, including manufacturing, sales, and global market share. It also provides detailed company profiles and analyses of each vendor, including recent product launches, partnerships, and mergers and acquisitions. It also provides the competitive landscape, including company profiles, product mix, and production scale. Once you know what to expect from the market, you can make a buying decision.

Maintenance of Mechanical Flexible Couplings

Proper maintenance of mechanical flexible couplings on roller chains is critical to ensuring the proper operation and reliability of the system. Maintenance of these couplings includes periodic inspection of the components. Check for signs of fatigue and wear. Regular inspections will help determine when to replace the coupling. It also helps determine the remaining life of the coupling.
Couplings should be replaced periodically for optimum performance. When replacing, be sure to use the correct parts. Make sure the coupling type matches the coupling type and chain size. Identical coupling parts may not fit, so a cross-reference guide or manufacturer’s spec number may be helpful. Make sure that the coupling is fitted with a suitable roller chain.
Mechanical elastic couplings on the roller chain can be easily lubricated to avoid premature failure. Elastomeric couplings can accommodate minor shaft misalignments and are suitable for high rotational speeds. Also, it absorbs shocks. Its flexibility is due to loose components. Additionally, lubrication is essential to reduce wear on coupling components.
chain

Roller chain size

Knowing the basic dimensions of the rollers is essential if you need to find the right roller chain for your needs. The three key dimensions of a roller chain are pitch, width, and pin diameter. These dimensions are important because they are used to identify the type of chain. These dimensions do not normally appear in chain manufacturer catalogs. They are usually designed for people designing new equipment. They are not important to maintenance technicians, but they are important to know if you are looking for a specific type of roller chain.
Once you know the exact size of the chain, you can move on to choosing the correct type. You can use the printable template to measure your chain, which makes it easy to compare with the size chart. Don’t forget to check the rest of the roller chain’s specs to make sure it fits your machine. Using the Roller Chain Size Chart is an easy way to determine the proper length, width, and height for your application.
When buying a roller chain, be sure to check the number of teeth and the ratio of the two. A common ratio is 2:1. The drive sprocket must have at least twice as many teeth as the roller sprocket. If the chain is used for high precision, check the type of sprocket as this will determine the correct size of the chain. You can also choose between slip-fit ​​and press-fit mid plates.

China factory CZPT HS-820-K325 Straight Running Plastic Chain Plastic Slat Top Chain for Chain Conveyor System   roller chain sprocketChina factory CZPT HS-820-K325 Straight Running Plastic Chain Plastic Slat Top Chain for Chain Conveyor System   roller chain sprocket
editor by CX 2023-04-21

China supplier Hairise wholesale high quality plastic Har880TAB factory directly provide plastic conveyor chain a2040 roller chain

Warranty: 3 many years
Relevant Industries: Manufacturing Plant, Food & Beverage Factory, Retail, Building works , Advertising Organization
Personalized help: OEM
Regular or Nonstandard: Common
Variety: Slat prime chain
Materials: POM, POM/DuPont
Tensile Energy: Strong
Identify: Har880TAB chains
Organization Variety: Maker
Plate width: 104.9MM
Pitch: 38.1mm
Color: Brown/As your necessity
Guarantee Time: 6 Months
Construction: Straight managing belt
Doing work load: 1230N
Assembling Style: Rods/Stainless Steel Rods
Packaging Details: Typically,we use wood containers,your demands could be available.
Port: ZheJiang , china

Hairise wholesale large quality plastic Har880TAB factory directly offer plastic conveyor chain

Solution IdentifyFlat Prime Chain
ContentPOM
Product No. Har880TAB series curve leading chains
Pitch38.1mm
ColorationBrown
Thickness19.9mm
PackagePicket Box/Carton/As you required
ProcessingInjection molding and machining
SoftwareFoods & beverage &Packing sector

Benefits of the CZPT products:
one.this products are handy to assembly and keep
2.All shade could be offered
three.this modular conveyor belt can bear High mechanical energy
four.this modular conveyor belt has Excellent item managing performance
5.these modular conveyor belts are wear resistance and Oil Resistant
6.we are a expert conveyor technique producer, our item line consists of modular belt, slat best chain, conveyor spare parts, conveyor technique.
seven.we can give great following-sale support.
8.each item can be customized

Software:
Bakery, Dairy, Fruit, and Vegetable
We have substantial encounter in establishing specialized options personalized to the requirements of many diverse Bakery business segments: bread and bun, new pastry (oven and fried pastry), pizza, pasta (new and dry), frozen bread, frozen pastry, cookies, and crackers, with our content managing tools conveyor systems conveyor plastic modular belt conveyor you can get amazed!

Meat Poultry Seafood
With belts and equipment developed to satisfy the particular requirements of fruit and vegetable processing and packaging purposes, CZPT is fully commited to assisting customers accomplish their operational and company targets.
Hairise continues to produce new and far better ways for consumers to improve throughput efficiency, boost sanitation, and lessen the costs of belt ownership.
Content managing tools conveyor programs conveyor plastic modular belt conveyor technological innovation to fulfill the certain difficulties of seafood processors.

All set Meals
Completely ready food consumers who equip their lines with CZPT Industrial plastic slat table prime foods grade conveyor chain recognize many vital positive aspects, such as:
·Reduced sanitation costs and enhanced foodstuff basic safety
·Improved line performance and keep item alignment
·Reduced unscheduled downtime and lowered labor demands
Our Solutions
Connected Description

Slat leading chains
There are stainless steel, engineering plastics, carbon metal and other components, with a extensive assortment of technical specs, which can be chosen in accordance to the conveying supplies and approach demands, which can satisfy the different wants of a variety of industries.It is broadly utilised in the automated conveying, distribution of meals, canned food, medicines, drinks, cosmetics, bike assembly strains, animal slaughter manufacturing traces, washing provides, paper items, condiments, dairy and tobacco, and so forth., and in-line conveying of downstream packaging.

Application
Slat top chains largely consist of the following varieties: chip conveyor chain plates, metallic chain plates, conveyor chain plates, cleansing chain plates, steel chain plates for beer, chip conveyor chain plates, punching chain plates, stainless metal chain plates, carbon metal chains Plate, travel chain plate, engineering plastic chain plate, keel chain plate, and so forth.The principal characteristics of the chain plate: the floor operates effortlessly, and is not easily interfered by other components, can load heavy components, and is sturdy. We can layout and generate chain plates of appropriate specs in accordance to certain conditions. The generally utilised chain plate specifications are 31.75, 38.1, and 50.8, which are reasonably costly in comparison to other transmission belts.

Classification
Product classification
one. Slat top chains
Plastic slat best chains
Steel desk leading chains
Multiflex conveyor chains
Flexible chains
2. Modular belts
Slab modular belts
Grid modular belts
three. Accessories of conveyor
Plastic comb boards
Sprockets
Rails
Steel chains
Neck guides
Conveyor rollers
Belts
Canned tuna components
four. Transmission products

Chain conveyor
Chain community conveyor
Steel mesh conveyor
Roller conveyor
Belt conveyor
Up grade conveyor
Screw conveyor

Company Data
Mu-Jia is an built-in business engaged in the R&D, manufacture and sale of slat best chain,modular belt,conveyor method and other related components virtually twenty several years. Insisting on the operation principle of “Quality Based and Service Very first”, our firm has received a higher status by way of a lot of many years of advancement. We also cooperate with some properly-known domestic and overseas enterprises.
Our head place of work situated in ZheJiang ,new manufacturing unit located in ZheJiang province,handles an places of 15,000 square meter,there are 3 primary properties:place of work constructing,conveyor assembly workshop and manufacturing workshop.Much more than 10 equipment for creating,several hundreds of item versions for meeting buyer assortment demands.Our primary merchandise are modular belt,slat best chain,versatile chain,conveyor system,comb,rail,sprocket and other conveyor connected parts.They are widely utilised in foodstuff, delicate consume, packaging & producing, tobacco, medicine & chemical, electronics, automobiles and logistics industries.

Packaging & Transport
FAQ

Q:The place is your manufacturing unit positioned? How can I go to there?
A:All our clientele, from home or abroad, are warmly welcomed to pay a visit to us, Prior to you check out our business, we can join by mobile phone ! Our firm is positioned in ZheJiang , China, near the ZheJiang Xihu (West Lake) Dis.ao Global Airport.

Q:I don’t know what belt I currently use. Can you help me identify my belt?
A:Our on the internet belt identifier can help you narrow down the collection and fashion of your present belt. If you need a lot more particular info on plastic conveyor chain belt components producers, make contact with me freely for plastic tobacco industrial mat flat desk slat best miniature conveyor chain belt parts makers.

Q:What can you do If the products were damaged?A:(1.If items ended up damaged as soon as you bought from me,I would exchange them freely for potato chips production line substitution parts. (2.If the merchandise had been broken when you used,We could provide 5 12 months good quality ensure for plastic conveyor chain belt components makers below frequent working surroundings.
Q:Does CZPT supply PDF files of goods?A:Indeed, in our down load centre you can discover PDF documents for a large quantity of our goods bakery tools.If you can not discover what you are seeking for ,deliver me your request by e-mail.
Buyer Suggestions
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What is a drive chain?

A drive chain is a wheeled device that transmits power from one gear to another. The drive chain is usually an oval ring around a corner or worm gear. On the other hand, idler pulleys do not transmit power and are not used to move the chain. In some cases, drive chains can be used with idler pulleys to transport objects. This allows the drive chain to recover some power from the second gear.

conveyor chain

There are many types of conveyor chains to choose from. One type is a closed joint chain. It consists of the barrel and connecting rod, made from a single casting and heat-treated for high strength and durability. Conveyor chains typically have low running speeds and are typically made of malleable iron. Another type of chain is the power transmission chain, which is used to transmit mechanical power. They feature efficient lubrication and are stronger than conventional conveyor chains.
Roller chain pitches can range from half an inch to a third of an inch. They are available in steel and nickel-plated steel. They can be used with inline or staggered rollers and can be designed with different pitch levels. They can also have bushings between the chainplates or gaps between the teeth to increase their maximum spacing. When choosing a conveyor chain, remember to properly lubricate bearing surfaces to minimize power absorption, wear, and corrosion. Mineral oils of medium viscosity are suitable for normal operating temperatures. SAE 20W50 is suitable. Manufacturers also offer self-lubricating chains.
Conveyor chains are used in many industries. The automotive industry has traditionally used these chains for bulk transport. Their reliability and low cost make them an excellent choice for a variety of applications. CZPT Chains offers stainless steel and CZPT conveyor chains to meet your unique requirements. If you’re in the market for a new conveyor, don’t forget to shop around. CZPT Chain can help you find the perfect one.
The regular drive version consists of an ASME/ANSI roller chain wrapped around a driven sprocket. It can also be configured for variable rpm. The gear ratio between the two parts determines the reduction or increase in speed. In some cases, solution chains can be used. Roller chains are more efficient. Then, there are solutions for both cases. There are many types of conveyor chains to choose from.
Conveyor chain pitch also plays an important role in performance. The smaller the pitch of the chain, the faster it spins. On the other hand, a smaller pitch will require more teeth on the sprocket, which means more links will be engaged during the movement. This smaller articulation angle also produces smoother motion. It also reduces vibration. Therefore, CZPT Chains can be trusted for a long time.
chain

roller chain

The performance of a drive chain depends on how well it is maintained and lubricated. Careful attention to detail is required when selecting a roller chain, which is one of the most important components in a drive chain. Its proper lubrication and assembly will significantly affect its wear life. Here are some important tips to follow when buying a roller chain:
The size of the drive chain should be selected according to the sprockets used. The large sprocket should have at least 25 teeth, and the small sprocket should have fewer teeth. The pitch of a drive chain is the contact angle between the chain and the sprocket. The smaller the sprocket, the smaller the contact angle of the two parts. Larger sprockets are better, but smaller sprockets must never have fewer teeth.
When purchasing a roller chain, be sure to consider the maximum speed of the small sprocket. This will determine how much lubrication you need. Different lubrication systems have different requirements. Manual lubrication limits how many feet per minute the drive chain can run, while oil bath lubrication can get you up to 1100 ft/min. The only way to maximize drive chain speed is to purchase a pump lubrication system.
Once you have the right length, you can determine if you need a new one. To do this you have to move the axis to measure the length. Once the length is determined, the drive chain should be removed from the sprocket and measured using the ANSI specified measuring load. You should also follow safety guidelines when measuring your chain. If you want to maximize the life of your drive chain, be sure to follow these tips.
Another important consideration is the type of environment you operate in. For applications that need to avoid rubbing steel rails, it is best to use a roller chain that can withstand a clean indoor environment. Although roller chains are generally more durable, they must be stored properly to avoid corrosion. If you care about the environment, consider opting for double chain. Its durability and low maintenance costs will make it a valuable investment in your business.

closed pivot

Closed-end pivot drive chains are used in a variety of applications. They are known for their durability, high strength, and long life. They are available in a variety of grades, including grade 400, grade 600, and grade 800 pivots, which can withstand the high forces required for certain applications. Enclosed pivot chains can be used to lift, pull, convey and transfer heavy loads.
Class 400 closed-end pivot chain features one-piece cast offset link construction. Steel pins connect each link and are prevented from rotating by head stops. This design allows the pin to connect inside the barrel without breaking. This type of chain is the most commonly used and has the highest durability. In addition to being extremely durable, it offers long-lasting performance and smooth operation.
Another closed-end pivot conveyor chain drive is called a power drive chain. These chains consist of barrels and links used to transmit rotation from one shaft to another. The barrels of the closed-end pivot chains are made of steel, which allows them to run easily on the sprockets. Block drive chains are used for low-speed applications, but they can be noisy when the chain is in contact with the sprockets.
The enclosed pivot drive chain has rollers on both ends to minimize wear. These chains are usually made of steel and can be used in areas where high-speed power transmission is required. They are also available in heavy-duty versions. Unlike other types of chains, steel pivot chains are designed for a variety of applications. They are suitable for heavy-duty applications and their open barrel design allows for minimal contact with the pins in the barrel and the root of the sprocket.
chain

Linear chain

CZPT is an important part of linear drive technology. This type of chain is capable of delivering real power in tight spaces. Typically, loads are moved by pulling or pushing. CZPT can perform both types of movements. They can push and pull additional loads. This type of chain can also be wound and stored in the magazine. It is a popular choice for small machine tools and many other uses.
Unlike traditional mechanical chains, CZPT uses a push-pull strategy to move heavy objects. It is a rigid locking design that prevents kinking and allows the chain to transmit force without bending. The CZPT is an excellent choice for moving large loads and is particularly versatile in power transmission. However, CZPT is more expensive than traditional drive chain options.
The service life of a linear chain depends on its design, material type and size. You may want to buy a good quality chain, but it’s not necessary in all cases. While superior quality can extend the life of the chain, it may not be necessary for low-speed drives or very light shock loads. If you’re not dealing with high-velocity shock loads, you probably don’t need features like oil reservoirs or bushing grooves.
The size of the drive sprocket can have a major impact on the overall life of the linear chain. It determines how fast the chain can go and how much horsepower it can produce. An 11-tooth chain will hit about half its rated speed, but only about 30 percent of its rated horsepower. You can extend the life of your linear chain by choosing a drive sprocket with a higher number of teeth. It is best to choose a drive sprocket with a high number of teeth, but make sure the number of teeth is even. This will ensure that your chain wear is evenly distributed.

China supplier Hairise wholesale high quality plastic Har880TAB factory directly provide plastic conveyor chain     a2040 roller chainChina supplier Hairise wholesale high quality plastic Har880TAB factory directly provide plastic conveyor chain     a2040 roller chain
editor by czh