Rail Grinding Train and Rail Milling Train
Introduction
With the continuous expansion of global railway networks, existing tracks gradually deteriorate with age and accumulate various rail defects, such as rail spalling, rail corrugation, shatter crack and head checking, etc, which creates high demand for rail maintenance. Rail milling and grinding trains are essential for track maintenance. They effectively secure track safety and prolong the service life of rail lines. Henan Tiechuang Railway Equipment Co., Ltd. was founded in 2015. We are a high-tech enterprise incubated with technology support from Tsinghua University Luoyang Base. We are committed to developing world-leading rail transit operation and maintenance technologies and intelligent equipment, realizing intelligent detection and efficient maintenance of urban rail transit rails, and improving the safety and cost-effectiveness of rail transit operation and maintenance.
Rail Grinding Train
Rail grinding train, also called rail grinding vehicle, or track grinding train. We provide customized solutions ranging from custom design to production of high-performance rail grinding trains. The CMC-12 rail grinding train shown below is a bespoke unit we built for a client in Kazakhstan for your reference. The CMC-12 compact rail grinding train uses end-face grinding with 12 grinding heads. It works for main track and switch rail maintenance to fix common rail defects including corrugation, spalling and shelling, and can also perform rail inspection. Fitted with a cartridge dust recycling filter system, it collects iron filings and keeps the working area clean.
CMC-12 rail grinding train technical parameters
CMC-12 Rail Grinding Train Vehicle Parameters
| Item | Specification |
| Overall Dimensions (L×W×H) | 9400mm×2575mm×3445mm |
| Curb Weight | ≤27t |
| Axle Load | ≤13.5t (weight reduction available) |
| Axle Arrangement | A0-A0 |
| Wheel Diameter | Ø740mm (new wheel), Ø670mm (fully worn) |
| Tread Profile | LM type tread |
| Inner Distance Between Wheel Sets | (1353±2) mm |
| Driver's Cab Noise | ≤75dB(A) |
| External Noise | ≤82dB(A) (7.5m from vehicle side, 1.2m above rail surface) |
| EMC Standard | Complies with EN50121-3-1, EN50121-3-1 and EN50121-3-2 requirements |
| Service Life | Vehicle service life ≥30 years; Overhaul interval ≥10 years |
| Engine Brand/Model | Dongfeng Cummins / QSL8.9-G33 |
| Engine Rated Power/Speed | 270kW / 1500rpm |
| Generator Brand/Model | Leroy-Somer / LSA 46.3L11 |
| Generator Power/Frequency/Voltage | 230kW / 50Hz / AC 400V |
| Fuel Tank Capacity | 500L |
| Brake Brand/Model | Knorr / KE1dv |
| Braking Deceleration (Straight Track) | Service braking: ≥1.0m/s²; Emergency braking: ≥1.2m/s² |
| Minimum Passing Curve Radius | 50m |
| Coupler | No.2 coupler |
| Coupler Height | (880±10) mm |
| Transmission Mode | AC-DC-AC electric transmission |
| Air Cylinder Capacity | 2×225L |
| Continuous Operating Time | ≥8h |
CMC-12 Rail Grinding Train Running Performance
Maximum Operating Speed：60km/h
Maximum Operating Speed：60km/h
Design Speed：66km/h
Minimum Negotiable Curve Radius：50m
Maximum Negotiable Gradient：50‰
Dynamic Performance：Complies with GB/T 17426 Standard
CMC-12 Rail Grinding Train Working Performance
| Item | Specification |
|---|---|
| Number of Grinding Heads | 12 units (8 for rail top grinding, 4 for rail gauge side grinding) |
| Grinding Range | -70° ~ +15°(-: gauge face / working side; +: non-working side) |
| Working Speed | (3~16) km/h |
| Working Speed Control Tolerance | ±0.1 km/h |
| Minimum Negotiable Curve Radius for Operation | 50 m |
| Maximum Negotiable Gradient for Operation | 50‰ |
| Grinding Depth | 0.1 mm per pass @7 km/h |
| Post-grinding Surface Roughness | ≤10 μm |
| Grinding Taper Gradient | 1‰ (adjustable) |
| Power of Grinding Motor | 15 kW |
| Rotational Speed of Grinding Motor | 3000~4000 r/min |
| Grinding Wheel Diameter | 260 mm / 150 mm |
| Dust Collection Airflow | 8000 m³/h |
| Cross-section Profile Accuracy | ±0.3 mm |
| Longitudinal Smoothness Accuracy | Wavelength: 30＜λ≤300mm, peak-to-valley ≤0.03mmWavelength: 300＜λ≤1000mm, peak-to-valley ≤0.15mm |
Rail Milling Train
We specialize in manufacturing FGM intelligent rail milling trains. Our FGM intelligent rail milling trains integrate high-speed milling and ultra-precision grinding. It can perform corrective milling and grinding to remove rail defects including spalling, flange bulging, corrugation and lateral wear, as well as standardized preventive grinding and pre-commission pre-grinding for newly built lines. It delivers excellent corrugation repair and precise rail profiling. Clean, efficient and intelligent, it eliminates all rail defects in one single pass. It features superior performance and low full lifecycle cost, It is the best solution for metro rail maintenance worldwide. Our products have been supplied in bulk and proven reliable in service for MTR Hong Kong, Zhengzhou Metro and other projects. The FGM500A Rail Milling Train is one of our models supplied to the Hong Kong railway project. We can customize the rail milling trains to fit different rail gauges and rail profiles. Feel free to contact us for any inquiry.
Various Rail Milling Train for Sale
FGM500A Rail Milling Train
Our FGM500A rail milling train has been exported to Hong Kong and sees widespread application in local rail maintenance services. It features automatic turnout milling, enabling full-process milling for both main tracks and turnouts. It is designed in accordance with European standards and incorporates four key technologies: high-efficiency cutting, high-precision profile tracking, lightweight system integration and intelligent control. It can not only perform repair milling to fix common rail defects such as spalling, rail lip, shelling and side wear, but also conduct preventive grinding and pre-service grinding for new railway lines.It also delivers excellent performance on corrugation removal and high-precision rail profile machining. At the same time, it achieves full-automatic turnout milling function with high-accuracy measuring capacity for rail profile and corrugation.
FGM500A Rail Milling Train Technical Parameters
Items | Specification |
Gauge Clearance | Complies with vehicle gauge standards A, B1, B2 of CJJ96-2003 |
Overall Dimension (L×W×H) | 12855mm × 2450mm × 2990mm |
Total Weight | 32(1±3%) t |
Wheel Back-to-Back Distance | 1353±1 mm |
Wheel Type | Φ640mm, LM worn profile tread |
Driving Mode | Diesel-electric drive (optional upgrade: battery power / pantograph power supply) |
Maximum Travelling Speed | 60 km/h |
Braking Deceleration | Service: 1.0 m/s²; Emergency: 1.2 m/s² |
Minimum Working Curve Radius | 25 m |
Maximum Working Gradient | 80‰ |
Working Efficiency | 300～1000 m/h |
Rail Head Milling Depth | 0.2～1.5 mm per pass |
Rail Side Milling Depth | 0.2～5 mm per pass |
Cutter Head Diameter | Φ500mm × 2 pcs |
Milling Angle Range | -87°～+30° |
Grinding Angle Range | -45°～+20° |
Grinding Wheel Diameter | Φ400mm × 4 pcs |
Surface Roughness | ≤Ra5 μm |
Cross-section Profile Accuracy | ±0.1 mm |
Longitudinal Smoothness Accuracy• Wavelength: 10＜λ≤100 mm• Wavelength: 100＜λ≤300 mm• Wavelength: 300＜λ≤1000 mm | Peak amplitude tolerance±0.01 mm±0.015 mm±0.075 mm |
High-performance Milling System of FGM500 Rail Milling Train
The milling device is for rail milling operation. Our FGM rail milling and grinding train is equipped with one set of milling devices on each rail. The surface of the rail is cutting by the milling cutter disc to achieve the rail profile correcting operation.
1. The milling system adopts electric drive transmission without hydraulic system (clean, no oil leakage, low failure rate).
2. High-precision and fast-response servo spindle.
3. High-precision, high-reliability profile detection and positioning system.
4. Automatic turnout & expansion joint milling function can be upgraded.
5. Wireless remote control and RFID automatic control are optional.
6. Consumable cost cut by 30%.
Test Verification and Application Performance
We complete comprehensive tests and verifications on our rail milling and grinding trains, delivering customers reliable, high-precision equipment that meets international standards and reduces long-term maintenance expenses. We tailor rail milling trains and rail grinders to match various rail gauges and rail profiles based on client requirements.Besides, we provide complete installation and commissioning services. Our skilled technicians travel to the worksite to supervise installation and commissioning.Feel free to reach out for purchase or cooperation inquiries.
Why Choose Our Rail Milling Trains
Four Core Technologies
1. High-efficiency milling/grinding technology
2. Lightweight system integration
3. High-precision tracking technology
4. Intelligent control technology
Five competitive advantages
1. New: Core technology has independent intellectual property rights
2. Small: The train is lightweighted and easy be mobilized
3. Quick: High operating efficiency and good milling effect
4. Clean: High iron chips collection rate and low environmental pollution
5. Cheap: Significantly reduce procurement and operating costs
Rail Grinding Train and Rail Milling Train, Welcome Global Partners and Distributors
Founded in 2015, Henan Tiechuang Railway Equipment is a national high-tech enterprise. We supply rail maintenance equipment and provide full rail milling, grinding and inspection services. We are able to customize rail maintenance solutions for customers worldwide. We sincerely invite agents worldwide to cooperate with us. Our cooperation scope covers complete sales and rental of rail milling and grinding trains, on-site rail milling/grinding services, spare parts supply and equipment maintenance services. We accept OEM private-label orders for equipment and spare parts for overseas markets and can meet local assembly and technology transfer requirements. Custom fabrication is available as per customer drawings. Feel free to contact us.
Successful Cases
MTR FGM500A Rail Milling Train
Guangzhou Metro FGM500B Dual Power Rail Milling Train
Zhengzhou Metro FGM50OC Rail Milling Train
Certification
We are an experienced and reliable manufacturer of railway products, we emphasize quality control, and we have our own professional inspection center and a comprehensive quality management system. Also, our products have passed the ISO9001 quality management system, ISO14001 environmental management system and ISO45001 occupational health and safety management system triple certification, and we have also passed the product certification of China CRCC. We are indeed a trustworthy railway product supplier, Please contact us anytime if you have any needs.
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