Railway Grinding Machine

Railway Grinding Machine

Details
NGM-6.3 internal combustion railway grinding machine is dedicated to the profile grinding of rail welding and rail head repair after rail damage welding. By accurately trimming the geometric contour of the weld seam, the flatness of the rail joint is ensured, thereby improving the smoothness and safety of high-speed rail operation. It is suitable for grinding 43Kg/m-75Kg/m rails.
Category
Rail Grinding Machine
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Description
Technical Parameters
NGM-6.3 Internal Combustion Rail Grinding Machine

NGM-6.3 Internal Combustion Rail Grinding Machine

The NGM-6.3 rail grinder delivers precise rail head shaping for high-speed track maintenance. Powered by a 6.3 kW gasoline engine, it offers stable performance even under continuous field operation, making it reliable for rail weld finishing and track leveling tasks.

Its robust yet compact frame allows rapid deployment on-site and easy handling for rails ranging from 43 to 75 kg/m. The machine supports longitudinal grinding, edge rounding, and weld seam smoothing, ensuring rails maintain an accurate profile and safe train operation.

Applications: Rail welding joint finishing, rail head profiling, wave abrasion correction, and high-speed track maintenance operations.

 

Structure and Working Principle

 

Structure: The NGM-6.3 comprises a reinforced frame, guide wheels, precision rollers, a gasoline engine, feed mechanism, grinding head, and ergonomic control handle.

Working Principle: The engine drives a transmission shaft that rotates the grinding head. Operators adjust the feed rate via a handwheel and move the machine along the rail for uniform grinding. The frame can rotate up to 90° for edge and corner polishing, ensuring an even rail head profile with minimal deviation.

 

Product Specification

 

Engine Power ≥ 6.3 kW 4-stroke gasoline engine
Rotation Speed 3600–4200 rpm Stable under continuous operation
Grinding Feed Accuracy 0.05 mm Precision control for uniform profile
Total Feed Range 44 mm Suitable for various rail profiles
Track Width 1049 mm Standard gauge compatibility
Operating Temperature -40°C ~ +70°C All-weather field readiness
Weight ≤ 79 kg Portable for on-site use

 

Application

The NGM-6.3 rail grinding machine is engineered for precision rail maintenance, including weld seam finishing, rail head reshaping, and high-speed track polishing. It ensures smooth transitions at welded joints, improving ride quality and reducing wear on rolling stock.

Suitable for 43–75 kg/m rails, the machine also performs on ultra-long continuous tracks and turnout zones, delivering consistent rail head profiles across varying track conditions.

NGM-6.3 rail grinding operation

Operation and Maintenance

 

After each shift, operators should clean exposed guide bars, chains, and sliding surfaces. Lubricate moving parts to maintain smooth operation and reduce wear.

Grease external lubrication cups every 20 hours of operation to ensure continuous and efficient performance.

 

Customization & Certification

 

Customization Options: Choose engine type (gasoline or electric), grinding wheel composition, paint color, and custom branding to fit project requirements.

Certification: ISO 9001 quality management system, CE certified for international shipping, and compliant with industrial safety standards.

 

Transport Packaging and After-Sales

 

Packing: Heavy-duty wooden crates or pallets to safeguard units during transit.

Delivery: Typical lead time 10–15 working days after confirmation of payment.

After-sales Service: Remote technical support, spare parts availability, and operation guidance provided to ensure customer satisfaction.

NGM-6.3 rail grinder packaging
NGM-6.3 shipping crate
Rail grinder ready for delivery
Rail grinding machine transport

 

Company Information

 

Our manufacturing facility, located in Zhengzhou High-Tech Industrial Development Zone, spans 20,000 m² with advanced workshops and assembly lines. We specialize in rail grinding, tamping, lifting, and welding machines, with export experience to over 40 countries worldwide.

Factory exterior

Workshop overview

Production line

 

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