Rail Grinding Machine
AGICO Professional Rail Grinding Machines
As a globally leading manufacturer of railway maintenance equipment, AGICO deeply understands the core value of high-quality track for railway operational safety and economic performance. We provide a complete rail grinding solution ranging from precision hand-guided machines to fully automated grinding trains, specifically designed to eliminate track defects and restore the perfect wheel-rail relationship. Through AGICO grinding technology, railway operators can extend rail life by over 50% and significantly reduce long-term maintenance costs.
Why Does Railway Need Professional Grinding?
Rails develop various types of damage under continuous loading, including:
Corrugations: Cause severe vibration and noise, accelerating component wear on rolling stock.
- Shelling and Spalling: Create stress concentrations, potentially leading to rail head fractures.
- Side Wear and Flow: Alter wheel-rail contact geometry, affecting running stability.
- Weld Irregularities: Generate impact loads, damaging the track foundation.
Working Principle of AGICO Railway Grinders
The Working Principle of AGICO Grinders is based on an advanced closed-loop control system:
- High-Precision Detection: Integrated laser profile scanners with measurement accuracy of ±0.1mm.
- Intelligent Plan Generation: The system automatically analyzes the optimal metal removal strategy.
- Multi-Angle Synchronized Grinding: Independently controlled grinding heads operate precisely from different angles.
- Real-Time Quality Verification: Immediate generation of profile comparison reports post-operation.
The Complete AGICO Rail Grinder Series
GM-2.2 Electric Rail Profile Grinding Machine
Drive: Electric Power
Application: Suitable for grinding rail surface welds, surface irregularities, side burrs, and other defects such as plastic flow on rails of any specification from 43 kg/m to 75 kg/m.
Key Features & Benefits:
- Eco-Friendly Operation: Electric motor driven, producing zero exhaust emissions and significantly reduced noise pollution.
- High Efficiency: Capable of continuous high-power operation, ensuring outstanding grinding results and superior maintenance efficiency.
- Cost-Effective: Delivers performance comparable to petrol-driven models but at a lower operating cost.
- User-Friendly: Designed for easy operation and convenient placement on or removal from the rail.
| Petrol Engine Model: | HONDA GX270 |
|---|---|
| Power: | 5.1 kW |
| Grinding Wheel Size: | φ254×35×φ30 mm |
| Spindle Speed: | 3500 r/min |
| Grinding Wheel Linear Speed: | 50 m/s |
| Grinding Wheel Feed Travel: | ≥45 mm |
| Grinding Wheel Swing Angle: | -30° to 90° |
| Total Weight: | 95 kg |
| Size: | 2320×1170×1150 mm |
NGM-4.8 Internal Combustion Rail Profile Grinding Machine
Drive: Internal Combustion Engine
Application: This grinder is designed for a wide range of track maintenance tasks. It effectively handles rail surface welds, uneven joints, side plastic flow (fat edge), and general profiling of the rail head on standard rails from 43 kg/m to 75 kg/m. It is an ideal tool for overhaul, daily repair, and urgent rush repair work.
Key Features & Benefits:
- Wide Compatibility: Primarily compatible with Chinese standard rails (43-75 kg/m) and can be customized for other rail profiles.
- Robust & Operator-Friendly Design: Features a sturdy, enclosed frame for torsion resistance, contributing to low noise, low spark, and low dust operation.
- High Efficiency & Quality: Delivers high working efficiency with a consistently good grinding finish.
- Portable & Agile: Easy to set on and off the track, making it more suitable for quick emergency repairs and flexible access compared to larger maintenance vehicles.
| Petrol Engine Model: | GX200 |
|---|---|
| Speed: | ≥3600 r/min |
| Power: | 3.7 kW |
| Grinding Wheel Size: | φ125×65×M20 |
| Spindle Speed: | 4400 r/min |
| Grinding Wheel Tilt Angle: | ±90° |
| Grinding Wheel Travel: | 45 mm |
| Profiling Wheelbase: | ≥1000 mm |
| Total Weight: | 98 kg |
| Size: | 1650×580×750 mm |
NCM-4II Internal Combustion Railroad Switch / Turnout Grinding Machine
Drive: Internal Combustion Engine
Application: This grinder is specially designed for the complex profiles of railroad turnouts. It excels at grinding switch points, frogs, the top surface of wing rails, and side plastic flow. Additionally, it is highly adaptable and can be effectively applied to other sections of standard track for work on the rail head and web.
Key Features & Benefits:
- Specialized Design: Features a unique structure specifically engineered for the contours and requirements of turnout sections.
- Outstanding Performance & Reliability: Delivers excellent grinding results, backed by robust construction and reliable quality for demanding maintenance tasks.
- High Efficiency: Its rational design and powerful performance translate to significant savings in both time and labor.
- Broad Adaptability: Highly versatile and applicable to various working scenarios beyond turnouts, making it a comprehensive rail maintenance solution.
| Gasoline engine power | 2 strokes /4.4kw |
|---|---|
| The spindle speed | 4670 r/ min |
| Grinding wheel specifications | ∮150×70×∮55mm |
| Grinding head travel | 45mm |
| Machine weight | 61kg |
| Dimension | 1480 × 470 × 810mm |
SNGM-180 Portable Internal Combustion Rail Grinder
Drive: Internal Combustion Engine
Application: A highly versatile and portable grinder designed for grinding all types of rails from multiple angles. It is particularly effective for rail joint treatment and is adaptable to a wide range of complex maintenance scenarios requiring flexibility and speed.
Key Features & Benefits:
- Compact & Portable: Features a small volume and lightweight design, making it exceptionally flexible, easy to carry, and ideal for fast deployment.
- High Efficiency & Versatility: Delivers high grinding efficiency and is suitable for comprehensive treatment on various rail profiles and angles.
- Robust & User-Friendly: Built with a compact yet rugged structure for durability. It is simple to operate, easy to maintain, and can be installed and used by a single person.
| Petrol Engine Power: | 1.42 kW |
|---|---|
| Grinding Wheel Size: | φ180×22.2×φ6 mm or φ150×22×φ6 mm |
| Spindle Speed: | 6000 r/min |
| Grinding Wheel Linear Speed: | 70 m/s |
| Total Weight: | 7 kg |
| Size: | 780×270×310 mm |
NXG-4 Internal Combustion Rail Grinder / Deruster
Drive: Internal Combustion Engine
Application: This versatile machine is designed to remove surface rust from various types of railroad rails. As specialized maintenance equipment, it is primarily used to eliminate poor electrical shunting problems in track circuits by cleaning rail contact surfaces. It can also be equipped with grinding wheels to perform basic rail head profiling tasks.
Key Features & Benefits:
- Targeted Problem Solver: Specifically engineered to address critical track circuit issues caused by rail surface contamination or rust.
- Dual-Function Versatility: Primarily functions as an efficient deruster, with the added capability for basic grinding when equipped with appropriate wheels.
- Wide Compatibility: Adaptable to multiple rail types and specifications for broad application.
| Engine Model: GXV160 | Power: 4.0kW；rpm ≥3600r/min |
|---|---|
| Principal axis rpm | 3600r/min |
| grinding wheel linear velocity | ≥70m/s |
| Total weight | 7kg |
NGYM-4 Internal Combustion Rail Waist Grinding Machine
Drive: Internal combustion engine
Application: Specifically designed for high-precision grinding of the rail waist (side profile). It is an essential tool for critical preparatory work in railway laying and maintenance, including grinding before rail welding and surface preparation for constructing bonded insulated joints.
Key Features & Benefits:
- Specialized Solution: Replaces manual angle grinders to perform precise, efficient, and consistent grinding on the rail waist—a high-workload task in rail welding.
- Superior Precision: Offers a grinding wheel feed accuracy of ≤0.1 mm, with free adjustment between rough and fine grinding modes for optimal control.
- Wide Compatibility: Suitable for standard rails from 50 kg/m to 75 kg/m and can be customized to meet any specific railway standard or technical requirement.
| Petrol Engine Model: | HONDA GXV160 |
|---|---|
| Speed: | ≥3600 r/min |
| Power: | 4.0 kW |
| Grinding Wheel Size: | φ124×106×34.5 |
| Spindle Speed: | 4670 r/min |
| Grinding Wheel Diameter: | Φ100–230 mm |
| Total Weight: | 57 kg |
| Size: | 1120×430×780 mm |
Advantages of Rail Grinding Machine
1. Intelligent Grinding Stone Management System
- Real-Time Wear Monitoring: Sensors track the wear status of each grinding stone.
- Automatic Pressure Compensation: Maintains consistent grinding efficiency even as stones wear.
- Life Prediction Algorithm: Provides early warnings for replacement needs, preventing unscheduled downtime.
2. Multi-Mode Grinding Technology
- Preventive Mode: Light metal removal to maintain the ideal profile.
- Corrective Mode: Targets and eliminates corrugations and surface defects.
- Transition Zone Optimization: Special algorithms for grinding the transition between curves and tangents.
3. Data Integration and Analysis Platform
- AGICO RailCloud™: Cloud-based storage for all operational data.
- Trend Analysis Tools: Predicts track degradation trends and optimizes maintenance schedules.
- Digital Twin Modeling: Creates a virtual replica of track condition to simulate the effects of different grinding strategies.
Application
High-Speed Railway Preventive Maintenance
Recommended Model: RGH Series High-Speed Grinding Train.
Service Interval: Every 30-50 MGT (Million Gross Tons).
Expected Outcome: Rail life extended to 800-1000 MGT.
Heavy Haul Railway Corrective Grinding
Recommended Model: RG-P Series Heavy-Duty Grinding Vehicle.
Processing Capability: Can remove corrugations up to 3mm deep.
Economic Analysis: A single operation can prevent the premature replacement of approximately 15km of rail.
Urban Rail Transit Night Maintenance
Recommended Model: Low-Noise Electric RG-P Series.
Possession Utilization: Can complete 10-15km of grinding within a 4-hour possession.
Social Benefit: Reduces in-car noise by 3-5dB, enhancing passenger comfort.
Return on Investment (ROI) Analysis
Based on statistics from 300+ global clients:
Direct Cost Savings:
Rail replacement intervals extended by 2-3 times.
Rolling stock maintenance costs reduced by 18-25%.
Rate of track geometry deterioration reduced by 60%.
Indirect Benefits:
Derailment risk reduced by over 40%.
Energy consumption decreased by 5-8% (due to reduced rolling resistance).
Significant improvement in passenger satisfaction.
Typical Payback Period:
1.5 to 2.5 years (depending on traffic density).
Global Service and Support
1. Professional Technical Support
- On-Site Training: Each project includes at least 40 hours of operation and maintenance training.
- Remote Diagnostics: Provides real-time remote assistance via AR technology.
- Spare Parts Network: 8 global parts centers ensure emergency parts delivery within 48 hours.
2. Customized Solutions
- Rail Profile Adaptation: Compatible with all standard rail sections from 37kg/m to 75kg/m.
- Special Environment Design: Custom versions for high-altitude, extreme cold, and corrosive environments.
- Control System Integration: Seamless interface with clients' existing track management systems.
3. Lifecycle Management
- Extended Warranty Plans: Comprehensive warranty coverage available for up to 5 years.
- Performance Guarantee Contracts: Ensure agreed-upon metal removal rates and profile accuracy are met.
- Technology Upgrade Path: Provides regular hardware and software upgrade services.
4. Certifications and Quality Standards
All AGICO Rail Grinding Machines comply with or exceed the following standards:
- Safety Standards: EN 14033, ISO 50001
- Performance Standards: UIC 712, AREMA Chapter 4
- Environmental Standards: EPA Tier 4 Final, EU Stage V
- Quality Control: ISO 9001:2015 Certified Production System
Frequently Asked Questions (FAQ)
Q: What are the advantages of AGICO grinders compared to traditional grinding methods?
A: Traditional methods rely heavily on operator skill, leading to inconsistent results. AGICO equipment ensures the same high standard is achieved every time through closed-loop control, with 3-5 times greater efficiency.
Q: What is the learning curve for operating the equipment?
A: Basic operations can be mastered within 3 days. Our training system ensures your team can work independently within 2 weeks.
Q: How do you handle special rail profiles or non-standard situations?
A: We provide custom grinding program development services and have successfully delivered solutions for special applications like mining railways and rack railways.
Q: How complex is the equipment maintenance?
A: Featuring a modular design, 80% of routine maintenance can be performed by trained on-site personnel. We provide detailed maintenance manuals and online video guides.
We receive enquiries in English, Español (Spanish), Русский язык (Russian), Français (French) and العربية (Arabic). Our professional team will reply to you within one business day. Please feel free to contact us!
