NGC JS (MPS) Series Scraper Conveyor Gearbox Introduction
The JS (MPS) Series Scraper Conveyor Gearbox, a cutting-edge heavy-duty transmission product developed by Nanjing High Accurate Gear (NGC), is exclusively engineered for scraper conveyors and crossheading scraper transfer machines in underground fully mechanized mining faces. As a core power transmission component in coal mining production, this series integrates NGC’s advanced industrial gearbox technology platform with mine-specific optimizations, delivering exceptional load-bearing capacity, operational stability, and reliability under the harsh conditions of underground coal mines.
Adopting a modular design concept, the JS (MPS) Series features high part interchangeability and standardization, which simplifies maintenance, shortens delivery cycles, and reduces inventory costs. The gearbox employs a three-stage transmission structure combining bevel and cylindrical gears, optimized through advanced finite element analysis (FEA) to enhance structural rigidity and torque density. All gears are crafted from high-performance low-carbon alloy steel via carburizing, quenching, and precision grinding processes, complying with ISO, AGMA, and DIN international standards, with gear accuracy exceeding national standard Grade 6.
Targeted for underground mining environments, the series is equipped with a unique gear modification technology that optimizes meshing performance, ensuring smoother transmission, lower noise, and reduced vibration. A multi-form sealing structure with a specialized design effectively minimizes oil leakage risks, a critical advantage in dusty, humid underground conditions. The gearbox supports an installation angle range of 0° to ±25° and bidirectional operation, adapting to the complex layout requirements of mining working faces, while its compact structure saves valuable installation space in limited underground environments.
Covering a power range of 40kW to 1600kW and a speed ratio range of 3.5 to 40, the JS (MPS) Series perfectly matches various scraper conveyor models for coal mining. It operates stably at an input shaft speed of up to 1500r/min and ambient temperatures ranging from -20℃ to 35℃, meeting the rigorous working conditions of underground mines. Backed by NGC’s strict quality control system and rich experience in mining transmission solutions, this series achieves advanced international levels in key technical indicators, providing reliable power support for efficient and safe coal mining operations.
NGC JS (MPS) Series Scraper Conveyor Gearbox Specifications
Note: Modular gearboxes for underground coal mine scraper conveyors/transfer machines, high load capacity, large inclination adaptability. Weights are for standard reducer only (motor weight additional; IEC/NEMA/DIN frames compatible).
| Model | Approx. Weight | Motor Combination (Power Range) |
|---|---|---|
| JS15, JS17, JS22, JS30, JS40, JS75, JS90, JS110, JS132, JS160 | 500kg – 2,800kg | Three-phase induction motors (15kW – 160kW); IE3/IE4 high-efficiency, inverter-duty; 3-stage helical-bevel, ratio 3.5:1 – 25:1 for light/medium scraper conveyors |
| JS200, JS250, JS315, JS400, JS500, JS630, JS710, JS800, JS900, JS1000 | 3,000kg – 8,500kg | 200kW – 1,000kW motors; reinforced gear sets, ratio 10:1 – 40:1 for heavy-duty long-distance scraper conveyors |
| JS1100, JS1250, JS1400, JS1600 (MPS1100), JS1800, JS2000 | 9,000kg – 16,000kg | 1,100kW – 1,600kW motors; ultra-heavy-duty, integrated forced lubrication for super-large scraper conveyors |
| JS-FL-15, JS-FL-17, JS-FL-22, JS-FL-30, JS-FL-40 | 550kg – 3,000kg | 18.5kW – 55kW motors; flange-mounted, compact for space-constrained scraper conveyor installations |
| JS-FT-15, JS-FT-17, JS-FT-22, JS-FT-30, JS-FT-40 | 600kg – 3,200kg | 22kW – 75kW motors; foot-mounted, rigid base for high-load scraper conveyor drives |
| JS-EX-15, JS-EX-17, JS-EX-22, JS-EX-30, JS-EX-40 | 650kg – 3,500kg | 15kW – 45kW explosion-proof motors; Ex d I Mb certified for gas/dust hazardous underground zones |
| JS-SERVO-30, JS-SERVO-40, JS-SERVO-75, JS-SERVO-90 | 800kg – 4,000kg | Servo motors (30kW – 90kW); low-backlash (<12 arcmin), precise speed control for metering scraper conveyors |
| JS-IE5-40, JS-IE5-75, JS-IE5-90, JS-IE5-110 | 900kg – 4,500kg | IE5 ultra-premium PMSM motors (40kW – 110kW); high efficiency, low energy for sustainable scraper conveyor systems |
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