Railroad Grinder
High-precision lithium battery powered rail grinder designed for 50kg/m–75kg/m steel rails. Ideal for pre-weld treatment, line maintenance, and weld seam polishing with adjustable feed and reliable battery operation.

Specifications
| Model | Railroad Grinder |
| Power Source | 72V Lithium Battery, replaceable |
| Weight | 70 kg |
| Operating Temperature | -30 ℃ to 45 ℃ |
| Grinding Wheel | Resin cup-shaped, suitable for 50kg/m–75kg/m steel rails |
| Battery Life | 1+ hour continuous operation, up to 8-10 weld seam polishings per full charge |
Core Features
Precision Feed Control
Adjustable mechanical and electronic feed (0.1mm precision) for pre-weld treatment and initial grinding. Supports 50kg/m–75kg/m rails. Custom feed settings available for project requirements; MOQ: 5 units.
Intelligent Display
Real-time monitoring of battery, feed depth, and operating parameters. Optional custom software interface for fleet management; production lead time: 15–20 working days.
Outdoor Ready
IP54 waterproof design for stable operation in extreme temperatures from -30 ℃ to 45 ℃. Optional wheels, protective covers, and carry cases available.
Applications
- Pre-treatment of rail welding joints – customizable grinding depth and wheel type
- Rail waist polishing in metro and mainline maintenance – optional fleet-level monitoring system
- Weld seam repair and surface restoration – replacement wheels available for different rail hardness
- Routine track maintenance: repair wear, scratches, and minor deformations – packages include battery backup kits and protective covers
- Maintenance for turnouts, new lines, and track upgrades – custom configuration and batch delivery possible
Quality & Certification
All rail grinders are produced in our ISO 9001 certified facility, undergo strict QC checks, and comply with CE safety standards. Batch inspection reports and testing documentation available upon request. Our factory supports small to large orders with consistent quality control.


Case Studies

Vietnam Railway Project 2025
Successfully polished 100 km of 50kg/m rails with 8 units of Railroad Grinders. Customized battery kits reduced downtime by 30%.

China Metro Line Maintenance
12 units used for line maintenance; battery life and precision feed ensured consistent weld seam polishing with minimal human intervention.
FAQ
Q: How long does the battery last?
Up to 1 hour of continuous operation, completing 8-10 weld seam polishings.
Q: Can it operate outdoors?
Yes, IP54 waterproof design and temperature range from -30 ℃ to 45 ℃.
Q: Is it suitable for all rail types?
Supports 50kg/m–75kg/m steel rails; resin cup-shaped grinding wheels included. Custom wheel types available on request.
Request a Demo or Quote
Experience professional rail grinding results with the Railroad Grinder – clean, quiet, and portable. MOQ, custom configurations, and shipping options are available for B2B buyers.
Qiangli Railway Machinery Co., Ltd.
Innovating rail maintenance solutions worldwide.
Hot Tags: railroad grinder, China railroad grinder manufacturers, suppliers, factory
