Laser Technologies

AL-TW 900 F

High-Performance 900 W Fiber Laser Welding Workbench for Precision Industrial Applications

Summary: The AL-TW 900 F is a stationary fiber laser welding workbench from ALPHA LASER for precision welding, repair work, deposition welding and industrial production. It pairs a 900 W fiber laser with pulsed and continuous wave (CW) modes, 9 kW peak pulse power and 90 J pulse energy with motorised multi-axis movement, joystick positioning, WINLaser 5 touchscreen operation, adjustable pulse shaping, a Leica microscope and optional powder deposition welding.

AL-TW 900 F — Open Laser Welding Machine
  • 900 W Average laser power
  • 9 kW Peak pulse power
  • 90 J Pulse energy
  • Pulsed / CW Operating modes

Product description

The AL-TW 900 F is a high-performance stationary fiber laser welding system designed for precision welding, repair work, deposition welding and demanding industrial production applications. Equipped with a 900 W fiber laser source operating at a wavelength of 1070 nm, it delivers 9 kW peak pulse power and 90 J pulse energy, providing high laser output for a wide range of metalworking applications.

Featuring an integrated dual-fiber laser configuration, motorised multi-axis movement, joystick-controlled workpiece positioning and advanced touchscreen operation, the AL-TW 900 F offers flexibility when processing components of different sizes and geometries. Its support for pulsed and continuous wave (CW) welding, adjustable pulse shaping and optional powder deposition welding further expands its application capabilities.

The AL-TW 900 F combines a powerful fiber laser source with a robust stationary workbench to provide an integrated solution for advanced industrial welding. Its open working concept allows convenient access to workpieces and supports a wide range of component configurations.

The system supports both pulsed and continuous wave welding, allowing operators to select suitable welding parameters for different materials and applications. Its dual-fiber configuration delivers high laser power, making it suitable for applications requiring increased welding performance and productivity.

The motorised movement system enables controlled positioning along the X, Y and Z axes, while joystick-controlled workpiece movement helps operators achieve accurate positioning during welding. The system is operated through WINLaser 5 software using a touchscreen, with additional laser parameter adjustments available through the multifunctional foot switch.

The AL-TW 900 F also features a Leica microscope attachment for precise observation during welding. Optional accessories, including a turn-and-tilt focusing objective, rotary axis module, camera system, programmable laser wire feed system and powder nozzle for deposition welding, allow the machine to be configured for specialised industrial requirements.

Optional Accessories

  • Turn-and-tilt focusing objective
  • Rotary axis module with chuck
  • Tiltable rotary axis for horizontal-to-vertical positioning
  • Camera system for welding process observation
  • Ergo wedge
  • AL-DV programmable laser wire feed system
  • Multifunctional foot switch
  • Powder nozzle for deposition welding


Features

900 W Fiber Laser Source

Equipped with a 900 W fiber laser operating at a wavelength of 1070 nm, the system delivers high laser output for precision welding, repair and industrial production applications.

Dual-Fiber Laser Configuration

The AL-TW 900 F features a dual-fiber configuration, supporting high laser power delivery with a beam parameter product of 2 × (2–3) mm × mrad at 50 μm fiber.

High Peak Pulse Power

With peak pulse power of 9 kW and maximum pulse energy of 90 J, the AL-TW 900 F provides powerful and controlled laser output for demanding welding applications.

Pulsed and Continuous Wave Welding

The system supports both pulsed and continuous wave (CW) operating modes. CW welding enables deeper material penetration and higher welding speeds, making it suitable for demanding industrial joining applications.

Adjustable Pulse Parameters

Pulse duration can be adjusted from 0.2 to 50 ms, with pulse frequency ranging from single pulse to 100 Hz. This allows operators to adapt welding parameters to different materials and application requirements.

Flexible Welding Spot Diameter

The standard welding spot diameter ranges from 0.3 to 3.0 mm, with an optional configuration supporting 1.1 to 4.0 mm for different welding applications.

Motorised Multi-Axis Movement

The integrated movement system supports X, Y and Z-axis positioning, with motorised workpiece movement controlled through a precision joystick. An optional rotary axis provides additional flexibility for complex component geometries.

Flexible Work Area

With a movement range of 620 × 400 × 350 mm and an additional 200 mm W-axis movement, the AL-TW 900 F accommodates workpieces of different sizes and configurations.

Touchscreen and Foot Switch Operation

The WINLaser 5 software provides convenient touchscreen operation, while the multifunctional foot switch allows operators to adjust laser parameters during the welding process.

Adjustable Pulse Shaping

The power curve within each laser pulse can be adjusted to control energy delivery and achieve the required welding characteristics for different applications.

Leica Microscope Attachment

The Leica microscope attachment with 10× magnification supports accurate observation and precise positioning during welding. An optional 16× configuration is also available.

Integrated Cooling System

The AL-TW 900 F features integrated lens water cooling to support reliable optical performance during operation. External smoke extraction connections are available for effective workplace ventilation.

Powder Deposition Welding Capability

With an optional powder nozzle, the AL-TW 900 F can also be configured for powder deposition welding, expanding its applications to surface restoration, component repair and material deposition.

Robust Integrated Workbench Design

The stationary workbench combines the fiber laser source and working area into one integrated system, providing a stable platform for precision welding, repair work, deposition welding and industrial production.

Specifications

ParameterAL-TW 900 F
Laser TypeFiber Laser
Wavelength1070 nm
Average Power900 W
CW Output Power900 W
Peak Pulse Power9 kW
Pulse Energy90 J
Pulse Duration0.2–50 ms / CW
Pulse FrequencySingle pulse–100 Hz
Operating ModesPulsed / CW
Beam Parameter Product2 × (2–3 mm × mrad), at 50 μm fiber
Welding Spot Diameter0.3–3.0 mm; optional 1.1–4.0 mm
Focusing Objective150 mm; further options as per lens data sheet
Pulse ShapingAdjustable power curve within a laser pulse
Display and OperationTouchscreen with WINLaser 5 software
Additional ControlMultifunctional foot switch
Observation SystemLeica microscope, 10×; optional 16×
Movement AxesX, Y, Z, W; optional rotary axis
Movement Speed0.05–25 mm/s
Movement Range620 × 400 × 350 mm; W-axis 200 mm
Machine Dimensions (W × D × H)1,200 × 1,438 × 1,461 mm
Height with Maximum W-Axis1,647 mm
Side Console Dimensions (W × D × H)726 × 500 × max. 2,025 mm
Machine WeightApprox. 800 kg
Side Console WeightApprox. 60 kg
Electrical Connection3 × 400 V / 50–60 Hz / 3 × 16 A
External CoolingIntegrated lens water cooling
Smoke ExhaustionExternal connection available
Powder Deposition WeldingOptional powder nozzle

Maintenance & care

Regular maintenance helps maintain welding quality, system reliability and operational safety.

  • Inspect and clean the focusing objective and optical components regularly.
  • Keep the workbench, fiber laser source and surrounding area clean and free from dust.
  • Check the integrated lens water-cooling system periodically.
  • Check the X, Y, Z and W-axis movement systems, guideways and mechanical components.
  • Inspect the joystick, touchscreen, foot switch and electrical connections.
  • Ensure external smoke extraction connections are functioning properly.
  • Inspect optional rotary axis, laser wire feed and powder deposition accessories periodically.
  • Follow the manufacturer's recommended maintenance and servicing schedule.


May we help?

What type of laser does the AL-TW 900 F use?
The AL-TW 900 F uses a 900 W fiber laser with a wavelength of 1070 nm. It works in both pulsed and continuous wave (CW) modes, offering 900 W CW output power, 9 kW peak pulse power and 90 J pulse energy, with pulse durations of 0.2–50 ms or CW and pulse frequencies from single pulse to 100 Hz.
How does the AL-TW 900 F compare with the AL-TW 600 F?
The AL-TW 900 F offers 900 W average and CW power, 9 kW peak pulse power and 90 J pulse energy, compared with 600 W, 6 kW and 60 J on the AL-TW 600 F. It has a welding spot range of 0.3–3.0 mm (optional 1.1–4.0 mm) and can be configured for powder deposition welding with an optional powder nozzle.
Can the AL-TW 900 F be used for powder deposition welding?
Yes. With the optional powder nozzle, the AL-TW 900 F can be configured for powder deposition welding, extending its use to surface restoration, component repair and material deposition.
What working range does the AL-TW 900 F offer?
The motorised movement system covers 620 × 400 × 350 mm on the X, Y and Z axes, plus 200 mm of W-axis movement, at 0.05–25 mm/s. Workpiece positioning is controlled by joystick, and an optional rotary axis adds flexibility for more complex component geometries.
What are the power requirements of the AL-TW 900 F?
The AL-TW 900 F requires a 3 × 400 V / 50–60 Hz / 3 × 16 A supply. The machine weighs approx. 800 kg, plus approx. 60 kg for the side console, and an external connection is available for smoke extraction.

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