Import 3 Ton Tunelling Trolley Locomotive — Buy in wholesale FOB from Supplier in China

The CJY3/6B IGBT trolley locomotive from Hunan Shuangma Electric Co., Ltd. is a 3-tonne electric mining locomotive built for underground tunnel operations, featuring module design with step-less speed regulation through IGBT technology. It delivers an adhesive weight of 3 tonnes and runs on 600 mm, 762 mm or 900 mm track gauge, powered by a 250 V DC system with 6.5 kW rated power per unit. The locomotive achieves a rated traction of 5.74 kN, maximum traction of 7.36 kN and a running speed of 7.5 km/h, with dual-level gearing transmission and combined electric plus mechanical braking.

The IGBT step-less speed regulation system replaces conventional thyristor control, providing larger starting torque and smoother acceleration while reducing energy consumption by approximately 35% compared to thyristor-speed-control equivalents. The power components are imported, contributing to improved reliability and thermal performance in confined underground environments. The compact structure measures 3035 mm in length, with width options of 920 mm, 1082 mm or 1220 mm, and a height of 1550 mm; the wheelbase is 850 mm with 520 mm diameter wheels. Pantograph working height ranges from 1800 mm to 2000 mm, and the minimum negotiable curve radius is 6 metres, which is standard for narrow-gauge mining railways in medium-section tunnels.

This locomotive is intended for haulage of ore cars, personnel carriers and material wagons in underground metal mines, coal mines and tunnel construction projects where explosive atmospheres are not present. Typical buyers include mine operators, tunnel engineering contractors and mining equipment distributors in Asia, Africa and Latin America. The supplier is located in Xiangtan Hi-Tech Development Zone, Hunan Province, and the trust tier is listed as harbour with zero recorded response rate, so buyers should contact the supplier directly to confirm current availability, spare parts support, warranty terms and delivery arrangements.

Hunan Shuangma Electric Co., Ltd. is headquartered at Shuangma Electric Building on Xunda Road in Xiangtan Hi-Tech Development Zone, Xiangtan City, Hunan Province, China, postal code 411100. The company's profile on this listing carries a harbour trust tier, but shows a response rate of 0.00% and an average response time of zero hours, which indicates that direct communication channels may be limited or that the supplier has not engaged through the platform's messaging system. No information about factory size, year of establishment, annual revenue or workforce is provided in the source data, and these details should be requested directly from the supplier.

The listing focuses specifically on the CJY3/6B IGBT trolley locomotive, suggesting that Hunan Shuangma Electric specialises in electric mining locomotives and related traction equipment for underground applications. The use of imported IGBT power modules and the emphasis on energy-saving performance relative to thyristor-controlled alternatives points to a product strategy oriented toward modernising older mine haulage fleets. Buyers should verify the supplier's after-sales capabilities, including availability of spare IGBT modules, brake components and wheel sets, as well as their experience with export documentation and commissioning support in target markets.