Qiangli Launches QL-DL3T Industrial Diesel Locomotive for Narrow-Gauge Rail Maintenance
Zhengzhou, China - November 8, 2025
Henan Qiangli Machinery Co., Ltd. has released a new industrial diesel locomotive designed specifically for internal rail transport in heavy-duty environments. The QL-DL3T targets maintenance teams, mining operations, and industrial facilities that rely on narrow-gauge track systems (600 mm to 900 mm) for moving materials, tools, or rail components.
Unlike standard locomotives, the QL-DL3T is built for short-distance shunting where infrastructure is limited and reliability is critical. It features an 11 kW air-cooled diesel engine, mechanical band braking, and a robust Q345B steel frame-allowing it to haul up to 15 metric tons on level, dry track with minimal maintenance.
Engineered for Real-World Conditions
Field feedback from clients in Southeast Asia and Central Asia highlighted recurring challenges: corrosion in humid climates, difficulty sourcing spare parts, and inflexible gauge configurations. In response, Qiangli integrated several practical upgrades into the QL-DL3T:
Quality Assurance & Global Support
Each unit undergoes factory acceptance testing (FAT), including a 2-hour continuous run, load trial, and brake performance check. A test report and video inspection are provided with every shipment.
The locomotive is manufactured under ISO 9001:2015 standards and holds CRCC certification for railway-use machinery. Qiangli offers an 18-month warranty and maintains a global spare parts network-with common components available within 72 hours of request.
Availability
The QL-DL3T is available for order worldwide. Standard configuration units ship within 15–20 days from Qingdao, Shanghai, or Tianjin ports. Custom builds (e.g., 15 kW or 22 kW engine upgrades, special couplers) require 30–40 days.
Minimum order quantity: 1 unit. FOB pricing starts at USD 4,900.
For technical drawings, customization consultation, or a formal quotation, visit the product page: QL-DL3T Diesel Locomotive – Qiangli Railway Equipment
About Henan Qiangli Machinery Co., Ltd.
Founded in 1995, Qiangli specializes in railway maintenance and transport equipment for industrial and infrastructure applications. With an in-house R&D team and a 20,000 m² production facility in Zhengzhou, China, the company serves clients in over 30 countries-including recent projects in Indonesia, Nigeria, and Uzbekistan.


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