High Load Coal Mining Industry Heavy Duty Drive Chain for Crushing and Drum Rotation Applications

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Product Description

Definition and Uses

Mining chains are specialized heavy-duty chains designed for the harsh, abrasive and high-load environments found in mining operations. They are key components of a wide range of mining machinery, providing rugged and reliable performance for material handling, excavation and transportation.

Uses: They facilitate efficient and safe operation of mining machinery through material transportation, excavation, and equipment movement. They are essential for continuous high-throughput operations in underground and open-pit mines. Working Environment: Mining chains often work in dusty, abrasive, wet, or corrosive environments, often in hot or extremely cold conditions, so their robustness and reliability are essential.

HD SERIES roller chains feature a pitch size ranging from 3 to 7 inches,commonly employed in power transmission for crushing and drum rotation applications. Such applications frequently encounter heavy shock loads. The design of HD series crank link chain helps absorb and dissipate shock energy through the chain, reducing stress on pins and plates, and maintain the consistent pitch tolerance ranges, minimizing irregularities caused by chain elongation.

Features / Benefits

High Strength and Durability: Constructed with thicker forged plates and higher-grade materials to withstand greater loads and harsh conditions.

Robust Construction: Designed to handle heavy loads and high shock applications with reinforced links and precise manufacturing tolerances.

Enhanced Wear Resistance: Hardened components such as pins, bushings, plates and rollers to reduce wear and extend service life.

Common Type HD Chains

Motor Grader Chain

The Motor Grader Chain is a high-strength transmission chain specifically engineered for use in grader machinery. It is designed to transmit power or actuate components such as blades and track systems. With outstanding wear resistance, tensile strength, and shock resistance, this chain is ideal for heavy-duty operations in harsh and complex working environments process.

Features Description

High-Strength Structure – Ensures stable performance under demanding conditions .

Surface Hardened Treatment – Improves wear resistance and prolongs service life.

Modular Link Design – Facilitates easy installation, disassembly, and maintenance

Push Coke Chain

The coke pusher chain is a key drive component in coke oven systems, used to push red-hot coke out of the carbonization chamber. It is a specialized chain designed for high-temperature, heavy-load, and cyclic operation conditions. Typically used in conjunction with coke pusher machines, this chain must offer exceptional heat resistance, wear resistance, and structural strength

Features Description

Heat-Resistant Material Construction: Manufactured from special heat-resistant alloy steel capa. ble of withstanding temperatures of 600–800°C .

High-Strength Link Design: Ensures safety and durability under heavy coke pushing loads .

Anti-Oxidation Surface Treatment: Extends service life in high-temperature oxidative environments .

Precision Heat-Treated Pins and Bushings: Reduces wear and improves operational stability

Customizable Dimensions and Attachments: Adaptable to different coke oven and pusher machine models

Applications

1. Underground mining equipment Continuous miners: These powerful machines extract coal from the seam. Heavy-duty drive chains are used to transmit power internally to the cutting drum, coal collecting arm, and overall conveying system, which transports coal from the mining face to the shuttle car or feeder conveyor. Roadheaders: Similar to continuous miners, roadheaders use strong chains to drive the cutting head and ensure material removal. Shuttle cars and scrapers: These vehicles transport coal or waste in underground mines. Heavy-duty drive chains are often part of their drive system (for example, in the axle or gearbox) and sometimes also provide power to the onboard conveyor mechanism. Bridge conveyors: Used to connect the continuous miner or shuttle car to the main belt conveyor system. Heavy-duty drive chains provide power to the section that transports the coal. Drilling Rigs (Underground): For specialized underground drilling, drive chains can transmit power to the rotation of the drill bit or the mechanism that pushes the drill bit into the rock. 2. Surface Mining Equipment Large Excavators and Draglines: Although typically hydraulically or electrically driven, very large excavators and draglines may incorporate heavy drive chains in their motion systems (tracks) or some large digging and lifting mechanisms to withstand the huge thrust. Bulldozers/Earthmovers: These tracked vehicles are essential for pushing coal, overburdening, and opening passages, and they rely on heavy drive chains in their track systems for propulsion and steering. Mobile Crushing and Screening Machines: Many crawler-type mobile crushing and screening equipment are used to process coal directly at the mine face, and they use heavy drive chains to power their tracks for mobility and drive the crushing elements or vibrating screens. Stackers and Reclaimers: These large machines used to build and reclaim coal yards have heavy drive chains in their booms and reclaiming mechanisms to move and handle large quantities of coal. 3. Coal Preparation and Processing Plants Feeder Breakers: These machines receive the raw coal (ROM) directly from the mine. Heavy-duty drive chains are essential for driving the crushing bars, which screen the coal, as well as the internal conveying systems that move the coal within the machine. Coal Washeries (Jig Drives): In coal washing facilities, specialized heavy-duty drive chains may be used to operate jigs or other separation equipment that clean the coal by agitating it in water. Material Handling Systems (Heavy Duty Section): In addition to direct conveying of coal, specific heavy-duty drive chains may be used in the gearboxes or power transmissions of large pumps, fans, or other auxiliary equipment within the plant to ensure continuous operation.

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We provide chain matching sprockets with various specifications, which can be customized according to your drawings.

We also provide belt conveyor products for your need.

The world's leading heavy-duty mining chain manufacturer Committed to providing heavy-duty chain conveyor solutions for surface and underground applications. With decades of experience and a commitment to excellence, we focus on producing customized top-quality mining chains and sprockets to meet the diverse needs of global customers.

Hangzhou Ever-power focuses on the design and manufacturing of high-precision cold heading chain rollers, sleeves, and various types of chains. The enterprise has passed three major management system certifications: ISO9001-2015, ISO14001-2015, and ISO45001-2018. The company's leading products include: engineering chain, cement chain, sugar machine chain, palm oil chain, steel sales chain, garbage incinerator chain, stainless steel conveyor flat top chain, and various types of chain cold roller and sleeve accessories······