Mobile Rail Welding Machines 

KZESO mobile flash-butt rail welding machines are designed for field welding of rails in mobile rail-welding installations and integrated systems. The range covers different rail profiles, force classes, upsetting strokes and application requirements.

Compare Mobile Rail Welding Machines

Rail Range

Upsetting Force

Stroke

Output

  • K900A-1

    6,500–10,000 mm²

    6,500–10,000

    6,500–10,000

    Up to 10 welds/h

  • K900T

    6,500–10,000 mm²; 60R1/60R2

    545 kN

    100 mm

    Project-dependent

  • K920

    6,500–10,000 mm²

    1,000 kN

    90 mm

    Up to 12 welds/h

  • K922-1

    6,500–10,000 mm²

    1,200 ± 60 kN

    100 mm

    Up to 15 welds/h

  • K930 / K945 / K950 / K955

    Model-specific

    1,200 kN

    Model-specific

    Up to 15 welds/h

  • K1067

    6,500–10,000 mm²

    600 kN

    Project-specific

    Project-dependent

Available Configurations

Available supply levels are Welding Head, Complete Welding Machine and Containerised Solution. The exact included equipment is stated on the individual product page and in the project specification.

Technology & System Architecture

Mobile machines combine flash-butt welding, hydraulic clamping and upsetting, post-weld flash removal where applicable, programmable process control and matched cooling/hydraulic systems. They can be integrated into mobile plants, containerised systems and complete road-rail welding complexes.

Key Advantages

    Multiple force and stroke classes for different railway applications.

    Continuous and/or pulsed flashing according to model and welding program

    Integrated process control and weld-data functions in supported configurations

    Three scalable supply levels for integration or turnkey deployment

Applications

Illustration

Field welding during railway construction and renewal

Illustration

Continuous welded rail construction and repair

Illustration

Mainline, heavy-duty, metro and tramway applications according to the selected model.

Illustration

Integration into mobile, containerised and road-rail systems.

Frequently Asked Questions

  • Selection starts with rail profile and cross-section, required force and stroke, productivity, operating conditions and integration concept.

  • Flash-butt rail welding is a resistance welding process used to join rail ends by controlled electrical heating and upsetting. KZESO equipment applies the process in stationary and field applications, with continuous or pulsed flashing depending on the machine and welding task.

  • Yes. KCM007 is a complete mobile road-rail welding complex integrating a KZESO rail welding machine with road-rail mobility, autonomous power, hydraulics, cooling, controls and handling equipment.

How to Select Mobile Rail Welding Machines 

Rail Profile

Need for Long Rail-String Welding Under Tension

Required Supply Level

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