Internal Combustion Rail Grinding Machine
Product Description
Engine Model: GX200 (Four-stroke)
Engine Power: 3.7 kW
Engine Speed: 3600 r/min
Grinding Wheel Spindle Speed: 4300 r/min
Grinding Wheel Specification: Ø125 × 65 × M20
Grinding Wheel Linear Speed: ≥50 m/s
Grinding Wheel Tilt Angle: ±90°
Tilt Angle Precision/Increments: 0.5°, 1.0°, 2.0°, 3.0°, 4.0°, 5.0°
Total Grinding Wheel Feed: ≥40 mm
Feed Precision/Increments: 0.01mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm
Tracing Wheel Distance (from rail): ≥1000 mm
Net Weight (Host Machine): 119 kg
Overall Dimensions (L×W×H): 1650 × 580 × 750 mm
Product Advantage
Lower Fuel Consumption: A correct rail profile and smooth surface significantly reduce rolling resistance. Trains require less energy (fuel or electricity) to pull loads over smoothly ground tracks.
Reduced Wheel Wear: A poor rail profile accelerates wear on train wheels. Properly ground rails promote optimal wheel-rail contact, dramatically reducing maintenance costs for the entire rolling stock fleet.
Lower Maintenance: By preventing major defects, grinding reduces the need for emergency track repairs and spot replacement of rails, which are expensive and disruptive.
Primary Purposes:
Remove Rolling Contact Defects: These are micro-cracks on the rail surface caused by the immense pressure and friction from train wheels. If left untreated, they can lead to shelling, spalling, or even complete rail failure.
Correct Rail Profile: Over time, rails wear into an uneven shape. Grinders restore the original, optimal profile to ensure smooth wheel-rail contact, which reduces wear on both the track and train wheels.
Remove Corrugation: This is a wave-like pattern of wear on the rail surface that causes the familiar "roar" or "rumble" as trains pass. Grinding smooths this out, drastically reducing noise.
Package & Delivery
Why choose us
1.Quality Control
All materials we use must be inspected by professional QC. We strictly inspect the product according to the national standard before shipment.
2.Professional Technical Team
We have been in railway maintenance equipment manufacturing for more than 30 years. And we offer engineers help you installing the equipment and provide free technical advice services.
3.Service &Support
Tiegong values your business and trust in our expertise, products and services.Our journey begins with the selection of the right equipment and solution to get the job done successfully. We accompany you throughout the lifetime of your investment from commissioning and training, maintenance and spare parts to possibly extending the lifetime or providing rentals.
The goal of our Customer Service Department and partner network is to ensure your success and maintain your business and trust every day.
Our ambition is to provide you timely Customer Services to accompany you along your journey with Tiegong.
4.Various Types
With eight main department, four work-shops,a dozen engineers and nearly 100 staff, the company is mainly engaged in railway maintenance equipment manufacturing and processing, such as rail drilling machine, rail cutting machine and other more than 100 kinds of products.
FAQ
1.Why does the grinding process create so many sparks?
The sparks are tiny, burning particles of the steel rail and the abrasive grinding stone. The process generates intense heat and friction, causing these particles to ignite in the air. Modern grinders have elaborate water spray and containment systems to manage this fire hazard.
2.What are the main types of rail grinding machines?
Production Grinders: Large, train-like machines that perform high-speed, preventive maintenance over long distances. This is the primary method for mainline tracks.
Switch & Crossing Grinders: Smaller, specialized machines designed to grind the complex geometry of turnouts and crossings.
Portable Grinders: Hand-held or small walk-behind units used for spot repairs, smoothing welds, and detail work in yards.
3.How does rail grinding save fuel?
A smoothly ground rail with the correct profile dramatically reduces rolling resistance. When a train's wheels meet a rough or poorly shaped rail, it creates more friction. Less friction means the locomotives need less power (and thus less fuel or electricity) to pull the train.
4.What is the basic purpose of rail grinding?
The basic purpose is to maintain the health and shape of railway tracks. Think of it like getting a dental cleaning and polishing for your teeth: it removes harmful buildup (metal fatigue, cracks) and restores the correct shape (rail profile) for optimal function and longevity.
5.What are "spalls," "corrugation," and "head checks"?
These are common rail defects that grinding fixes:
• Corrugation: A wave-like pattern on the rail surface that causes a loud "roar" or "rumble." It's a wear phenomenon.
• Head Checks / RCF: Tiny, repetitive cracks that form on the gauge corner of the rail in curves. They are the #1 target for preventive grinding. If left untreated, they can lead to spalling.
• Spalling: The process where small metal fragments break away from the rail surface, often because head checks have connected.
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