Rail Transit Laser Manufacturing
From train car body welding to wheelset axle cleaning, our advanced industrial laser systems deliver the extreme precision and high efficiency demanded by global rail transit standards.
Rail Transit Demands High Strength and Precision
Modern rail transit manufacturing is shifting rapidly toward lightweight, high-speed, and eco-friendly designs. Assembling stainless steel and aluminum alloy passenger trains requires structural integrity, airtightness, and minimal heat deformation. Traditional arc welding and manual cleaning struggle with efficiency, material damage, and strict safety requirements.
Advanced laser technology provides a clean, automated solution, delivering distortion-free laser-arc hybrid welding, high-speed fiber laser cutting, and precise laser cladding for critical rolling stock components.
Key Rail Transit Manufacturing Challenges
Addressing the critical production and maintenance pain points faced by modern rolling stock and railway equipment manufacturers.
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Severe Car Body Distortion
Conventional arc welding introduces excessive heat, causing thin-plate car bodies to warp, which requires costly mechanical straightening.
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Low Welding Efficiency
Traditional MIG/TIG speeds are limited to ~1 m/min on aluminum sidewalls and roofs, slowing down production lines.
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Poor Joint Airtightness
Resistance spot welding produces discontinuous joints, requiring heavy, labor-intensive sealants to prevent cabin air leakage.
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Difficult Aluminum Alloy Welding
Aluminum's high reflectivity, porosity, and thermal softening make stable, high-quality conventional welding extremely difficult.
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Slow, Toxic Cleaning Processes
Chemical paint stripping and grinding of axles during overhauls generate hazardous waste and risk micro-damage to metals.
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Costly Worn Component Scrapping
Heavy wear on critical wheelsets, axles, and pantograph strips leads to expensive component replacement rather than repair.
Laser Systems Engineered for Rail Transit
High-efficiency laser systems designed to optimize car body welding, component cutting, and maintenance operations.
Robotic Laser Welding Machine
Flexible 6-axis robotic welding system engineered for high-precision, continuous joining of complex rail transit car body components with minimized thermal distortion and heat input.
- 6-axis articulated robot arm
- Real-time laser seam tracking
- Saves post-weld straightening labor
Flat Metal Laser Cutting Machine
High-power fiber laser system designed for fast, high-precision blanking of medium-thick steel and aluminum plates used in locomotive bogie frames and carriage panel fabrication.
- Supports 6kW to 20kW power
- Cuts steel plates up to 50mm
- ±0.03mm high positioning accuracy
Intelligent Laser Cleaning System
Uses pulsed and continuous laser sources to quickly strip paint, rust, and oil from metro and high-speed rail wheelsets, axles, and brake beams.
- Eco-friendly paint stripping
- Cleans single brake beam <30s
- Zero damage to base substrate
Rail Transit Applications in Action
Real-world applications of laser technology delivering quality, efficiency, and cost savings in railway rolling stock manufacturing.
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CAR BODY
Panel Laser Welding
Single-sided continuous laser welding of aluminum sidewalls and roofs, replacing manual MIG to ensure high airtightness and paint-free finishes.
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STRUCTURAL
Bogie Frame Cutting
High-precision fiber laser cutting of structural sheets up to 14mm, achieving ±0.1mm accuracy with a minimal heat-affected zone.
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MAINTENANCE
Axle Paint Stripping
Automated pulsed laser cleaning of high-speed train axles to strip paint and rust during overhauls without inducing surface micro-cracks.
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REPAIR
Worn Part Cladding
Fusing wear-resistant alloy coatings onto worn bogie wheel treads and journals, avoiding the high cost of replacement for safety-critical components.
Partner in Rail Transit Laser Manufacturing
Backed by a 40-year pioneer legacy and 20+ years of dedicated expertise, ZG Laser delivers smart, certified industrial laser solutions for global rail transit.
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CE & ISO Certified
Premium systems exported to over 30 countries worldwide.
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400+ Patents
Advanced proprietary technology backed by 1,000+ industrial applications.
AEROSPACE INSTALLATIONS
Explore Our Aerospace Product Range
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01S-Auto Series Automated 3D Laser Cutting System for Automotive PartsDesigned for automotive hot-stamped components, this machine delivers efficient and precise hole cutting and edge trimming. It features high precision, fast speed and excellent dynamic performance to fit high-intensity automotive production. Equipped with a rotary table, it supports continuous cyclic production for stable and cost-effective manufacturing.
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02DF Series Large Format 5-Axis Laser Cutting Machine for Heavy-Duty IndustryFeatures rigid gantry structure and dual servo drive for stable high-speed cutting. It ensures large-range precise cutting with low cost and simple maintenance. Custom enclosure and dust removal options support safe and eco-friendly production.
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03SF Series High Precision 3D Laser Profiling MachineCantilever structure ensures stability, compact layout and easy access. Supports ±135° A-axis and infinite C-axis rotation for any-angle cutting. Ideal for mold prototyping, auto parts and small-to-medium batch production.
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04Fully Automatic Tube Laser Cutting MachineFully automatic feeding design enables high-volume unmanned pipe processing. Cuts round, square, rectangular and special-shaped metal tubes precisely. 1000W-15000W power range meets diverse industrial pipe cutting demands.
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05Automated Coil-Fed Fiber Laser Cutting MachineAll-in-one line for automatic uncoiling, leveling and cutting. 1000W-15000W power for coil sheet continuous processing. Built for high-volume, uninterrupted metal coil mass production.
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06Flat Fiber Laser Cutting Machine | High Speed Sheet Metal Laser CutterPower Range:1000W-15000W High-precision flat laser equipment for standard metal sheet batch cutting. Delivers fast, stable cutting with smooth edge and minimal material waste. Features simple operation, low maintenance and high cost performance for mass production.
