Rail and Switch Grinding Machine for railway maintenance

This is the NCM-5.1 Rail Frog and Switch Grinding Machine, designed specifically for grinding operations on switch and crossing (frog) areas and either side of the rail head in turnouts.

Model: NCM-5.1. Dimensions: 2100 × 1120 × 1030 mm. Engine: Honda GX270 petrol. Rated power: 5.1 kW. Grinding wheel speed: ≥ 3600 r/min. Grinding wheel feeding stroke: ≥ 80 mm. Feed adjustment accuracy: ≤ 10 mm. Grinding wheel rotation angle: ≥ 30°. Weight: ≤ 117 kg.

The grinding device can tilt 30° left and right from vertical and the grinding wheel position can be adjusted in both vertical and horizontal directions, enabling accurate work in narrow spaces between rails.

The machine uses a pull-rod transverse feed mode. This gives the operator better control of feed force, improving grinding quality and efficiency and allowing precise turning and positioning at any angle.

The standard power source is a Honda GX270 petrol engine (rated 5.1 kW). For other power options, contact the supplier.

The machine uses rail grinding wheels compatible with the machine's spindle speed (≥ 3600 r/min). Specific wheel types and sizes depend on grinding requirements — consult the supplier for approved wheel part numbers and recommended abrasive types.

Weight is ≤ 117 kg. For transport, use appropriate lifting equipment or a vehicle with sufficient loading capacity. Secure the machine and account for its dimensions (2100 × 1120 × 1030 mm). Two-person handling or mechanical assistance is recommended when lifting.

Regularly inspect and replace grinding wheels as needed, check and tighten fasteners, keep sliding/adjustment surfaces clean and lubricated, and perform engine maintenance per the Honda GX270 manual (oil, air filter, spark plug, fuel). Also inspect guards and safety devices before use.

Wear appropriate PPE (eye, ear, hand, and respiratory protection). Ensure the machine is stable and secured, keep bystanders clear of sparks and debris, shut off the engine before servicing, follow fuel-handling and fire-safety precautions, and follow local railway work safety procedures.

Operators should be trained in safe operation, adjustment and basic maintenance of the grinder. Training and operational manuals are typically available from the manufacturer or supplier—contact them to arrange training.

The NCM-5.1 is designed for frogs and switches and for working either side of the rail head. Compatibility with specific turnout sizes and rail profiles depends on geometry; verify suitability with the supplier and provide turnout/rail specifications if in doubt.

Typical consumables include grinding wheels, wheel nuts/spindle fittings, engine oil, air filters and spark plugs. Keep common wear parts and fasteners on hand. Contact the supplier for a recommended spare-parts list and part numbers.

Feed adjustment accuracy is ≤ 10 mm and the machine provides precise positioning and turning at various angles, aided by the adjustable wheel position and 30° tilt capability. Final accuracy will depend on operator setup, wheel condition and rail condition.

Noise and emissions are those typical of a petrol-engine driven grinder. Expect engine noise and grinding noise—use hearing protection and comply with local emission and noise regulations. For lower-noise/emission requirements, ask the supplier about alternative power options.

Warranty terms and after-sales support vary by supplier and region. Contact the manufacturer or your local distributor for warranty details, service contracts, spare-part availability and response times.