667 Series Pintle Chain

A conveyor chain designed specifically for heavy-duty, high impact, and harsh environments, commonly found in agriculture, mining, wastewater treatment, and snow removal equipment.

The key to its design lies in the open barrel structure: each link of the chain has a closed "barrel" at one end and an open end, and when connected, the pin passes through the barrel structure of the open end and adjacent links. This "open" design prevents dust, sediment, and other materials from accumulating easily, and has self-cleaning function, making it very suitable for dusty and muddy environments

Unique Structure

1. Link: Usually cast or precision stamped, it integrates the side panel and barrel structure together, providing extremely high overall rigidity.

2. Pin: This is the core technology. To prevent the pin shaft from falling off or rotating due to vibration during operation, the manufacturer has designed a special locking structure:

3. D-type head: One end of the pin shaft is machined into a D-type and matches with the D-type hole on the chain link to prevent rotation.

4. Knurling: The other end of the pin shaft is treated with embossing and firmly fixed in the chain link hole through interference fit.

5. Quad Stacked: By physically squeezing the metal around the pin shaft, extremely tight fixation is achieved to resist lateral forces

Main Advantages

1. Durable and sturdy

The open design can effectively remove debris and avoid blockages.

2. Strong impact resistance

The integral structure can withstand high loads and frequent impacts, and is not easily deformed.

3. Easy to maintain

Some models have detachable pin shafts, which can replace damaged chain links without the need for special tools.

4. Strong adaptability

It can work stably in a wide temperature range of -20 ° C to+120 ° C and in humid and corrosive environments

Selection Suggestions

1. Space and cost priority

If the conveyor line space is compact or the budget is limited, choose 667X (the most universal specification).

2. Heavy load and harsh working conditions

If transporting asphalt, ore, logs, or chains that require frequent high impact loads, choose 88C.

3. Optimization within the 667 series

If the 667X strength is not sufficient but the 88C is too large, 667K or 667XH can be considered as intermediate options.

Application Scenario

1. Asphalt paver: Transport high-temperature and heavy-duty asphalt mixture.

2. Agriculture: Grain conveying system for combine harvesters, hay balers, and manure treatment systems.

3. Industry and Mining: Heavy duty material conveyors, mining equipment, stone processing lines, crushed stone and ore conveyor lines.

4. Municipal and Environmental: Scraper chains for sewage treatment plants (especially suitable for corrosive environments), snow throwing conveyor belts for snow removal machines.

5. Forestry: log conveyor, sawdust processing

6.Garbage disposal: withstand irregular and impactful materials