conveyor chain 216B

Structural Features

1.Large pitch

The length of its chain plate is twice that of a standard pitch for ordinary drive chains (such as 08B/16B), but the dimensions of the rollers, pins, and other components remain unchanged.

2.Slow operating speed

Suitable for long-distance, heavy-duty material handling on automated production lines.

3.Cost reduction

Because the chain plates are longer, fewer links are required for a chain of the same length, thereby reducing manufacturing costs.

Performance Features

1. Suitable for low-speed, heavy-load applications. 

Double-pitch chains are ideal for operating conditions with lower speed and power transmission requirements; the long-pitch design makes them suitable for long-distance conveying.

2. High wear resistance and fatigue strength.

3. Excellent initial lubrication and corrosion resistance. 

High-end 216B chains undergo special lubrication treatment before leaving the factory.

4. High-precision manufacturing processes.

Precision stamping of chain plates. Improves hole positioning accuracy and contact ratio.

Chain plate holes. Ball-peened holes increase contact area with pins/bushings, enhancing fatigue strength.

Shot peening of chain plates. Eliminates internal stresses and improves fatigue resistance.

Pins, bushings, and rollers. Carbonitriding heat treatment to form a hard, wear-resistant surface.

Carbonitriding of pins. Further improves surface hardness and wear resistance.

Applicable Scenarios

1. Conveyor Technology

 This is the primary application area, such as material conveyor lines in automated warehousing systems.

2. Food Processing

Stainless steel chains are used for conveying on production lines for meat, baked goods, beverages, and other food products.

3. Agricultural Machinery

Commonly used in auxiliary drive and conveying systems for equipment such as harvesters and balers.

4. Water Treatment Facilities

Due to their corrosion resistance, stainless steel chains are suitable for use in damp or corrosive environments.

5. General Mechanical Engineering

Includes conveyor lines in industries such as packaging, glass, and ceramics.

Material Selection

• Alloy Steel: This is the most commonly used material. High-end chains strictly select high-quality heat-treated and carburized steel, and adhere to strict specifications regarding material analysis, tolerances, and surface quality.

• Stainless Steel: To meet the corrosion resistance requirements of industries such as food processing, water treatment, and chemical processing, chains are manufactured from 304 or 316 stainless steel. 304 stainless steel can also operate normally within a wide temperature range of -20°C to 400°C.

• Carbon Steel: Grades such as 40Mn steel are also common manufacturing materials, typically used for standard operating conditions.

Manufacturing Processes

1. Precision Machining

 All components are precision-manufactured and monitored using Statistical Process Control (SPC) to ensure consistent geometry and superior surface quality.

2. Fine Blanking & Ball-drifting

 For chains represented by the ELITE series, the link plates are produced using fine blanking and ball-drifting processes. This significantly increases the contact area between the link plates and the pins and bushings, enhancing fatigue strength.

3. Heat Treatment

 Critical components (such as pins and bushings) undergo carburizing heat treatment to create a hard, wear-resistant surface. Additionally, shot peening is widely applied to chain plates to eliminate internal stresses and further enhance fatigue strength.

4. Pre-stretching

High-quality chains undergo pre-stretching before leaving the factory to eliminate initial internal stresses and minimize chain elongation during the initial period of use.

5. Initial Lubrication

The chain is shipped with high-performance lubrication, such as a high-tech additive lubricant called eliDUR+, which does not drip and provides excellent corrosion protection.

Key Points for Use and Maintenance

• Regular lubrication. Keep the chain joints well-lubricated using lubricating oil of appropriate viscosity.    

• Cleaning and inspection. Clean the chain and sprockets regularly, and check for tooth surface wear and lubrication.    

• Drive sprocket replacement. Drive sprockets operate at high speeds and have fewer teeth, so it is normal for them to wear out faster than idler sprockets.

• Replace as a set. Sprockets and chains must be replaced simultaneously; replacing only one will accelerate wear on both components.

• Sprocket Maintenance. If abnormal sharpening of the teeth or excessive wear is detected, adjust or replace the sprocket promptly.