ALV 120 (WINLaserNC)
Advanced Programmable Laser Welding with Automated CNC Positioning
Summary: The ALV 120 (WINLaserNC) is an enclosed Nd:YAG laser welding system from ALPHA LASER for precision welding of small and intricate components. It pairs a 120 W laser with 9 kW peak pulse power, 75 J pulse energy and pulse frequencies up to 50 Hz with motorised X, Y and Z axes, WINLaserNC programmable control, a Leica microscope and integrated fume extraction.

- 120 W Average laser power
- 9 kW Peak pulse power
- 75 J Pulse energy
- 110 × 90 × 280 mm Movement range
Product description
The ALPHA LASER ALV 120 (WINLaserNC) is an enclosed precision laser welding system designed for accurate, repeatable and programmable welding of small components, intricate workpieces and specialised industrial applications. Equipped with a 120 W Nd:YAG laser source, it delivers up to 9 kW peak pulse power and 75 J pulse energy for controlled and consistent welding performance.
Featuring advanced WINLaserNC software, motorised X, Y and Z positioning, an integrated fume extraction system and an enclosed laser-safe working chamber, the ALV 120 offers enhanced automation capabilities compared with the standard manual configuration.
Its programmable welding functions, adjustable pulse shaping and precision movement system make it suitable for tool and mould repair, micro welding, sensor manufacturing, medical instruments and small-batch production applications.
The ALV 120 (WINLaserNC) is designed to combine precision manual welding with programmable automated operation. Its pulsed Nd:YAG laser operates at 1064 nm and provides adjustable pulse parameters to accommodate different materials, component geometries and welding requirements.
A key advantage of this configuration is its WINLaserNC software, which enables operators to create, manage and execute programmable welding sequences. The software offers up to nine programmable pulse shapes, allowing precise control over the laser power curve during each pulse.
The integrated motorised X, Y and Z movement system follows joystick commands during manual operation and can also execute programmed movements in automatic mode. This improves repeatability and reduces the need for continuous manual positioning.
With a convertible enclosed working chamber, ergonomic Leica microscope viewing, integrated fume extraction and optional rotary-axis compatibility, the ALV 120 (WINLaserNC) provides a flexible solution for precision welding and repeatable manufacturing processes.
Optional Accessories
- Micro Welding Function: Reduces the welding spot diameter for extremely fine and delicate welding applications.
- Rotary Axis Module: Enables rotational welding of cylindrical components, with tiltable configurations for horizontal-to-vertical positioning.
- Pneumatic Rotary Axis: Supports convenient and flexible component clamping.
- ALFT-HDMI Camera System: Displays the welding process on an external monitor.
- Ergo Wedge: Allows microscope inclination adjustment between 5° and 25° for improved operator comfort.
- Multifunctional Footswitch: Provides additional control over laser parameters.
- Turn-and-Tilt Objective: Allows laser beam positioning at different angles for difficult-to-access welding locations.
- 16× Microscope Eyepieces: Provide enhanced magnification for detailed welding applications.
- Wing Doors with Side Slots: Facilitate loading and positioning of long components, tubes and sensors.
- Additional Monitor: Displays the microscope camera image for improved process observation.
Features
High-Performance Nd:YAG Laser Source
Equipped with a 120 W Nd:YAG laser source operating at 1064 nm, the system delivers up to 9 kW peak pulse power and 75 J pulse energy for precise welding of delicate and intricate components.
Advanced WINLaserNC Software
The integrated WINLaserNC control software enables programmable welding sequences, parameter management and automatic movement control, supporting repeatable welding processes and improved production efficiency.
Programmable Pulse Shaping
Offers up to 9 programmable pulse shapes, allowing operators to adjust the laser power curve within individual pulses for greater control over heat input and weld quality.
Precise Pulse Control
Adjustable pulse duration from 0.5–20 ms and pulse frequency up to 50 Hz provide flexibility for different materials, component geometries and welding applications.
Motorised X, Y and Z Movement
The integrated three-axis movement system provides precise positioning with a travel range of 110 × 90 × 280 mm and adjustable movement speeds up to 25 mm/s.
Automatic Welding Operation
Supports manual, semi-automatic and fully automatic movement through WINLaserNC software, helping improve positioning accuracy and process repeatability.
Convertible Enclosed Working Chamber
The enclosed working chamber can be quickly converted into an open configuration for larger or longer components. Optional wing doors with side slots simplify loading of tubes, cables and sensors.
Optional Micro Welding Function
The optional fine welding function reduces the welding spot diameter to less than 100 µm, making it suitable for delicate components and extremely fine welding applications.
Integrated Fume Extraction
The built-in extraction system helps remove welding fumes from the working chamber, maintaining a cleaner operating environment.
Ergonomic Optical Viewing
The Leica microscope attachment with 10× magnification supports detailed visual inspection during welding. Optional 16× magnification is available.
External Software Connectivity
The WINLaserNC configuration supports an interface for external control of the software via an external PC, providing additional flexibility for specialised production workflows.
Flexible Rotary-Axis Integration
Optional rotary-axis configurations enable rotational welding of cylindrical components, with manual or pneumatic chuck arrangements available.
Laser Specifications
| Parameter | ALV 120 (WINLaserNC) |
|---|---|
| Laser Type | Nd:YAG |
| Wavelength | 1064 nm |
| Average Power | 120 W |
| Peak Pulse Power | 9 kW |
| Pulse Energy | 75 J |
| Pulse Duration | 0.5–20 ms |
| Pulse Frequency | Single Pulse–50 Hz |
| Operating Mode | Pulsed |
| Welding Spot Diameter | 0.2–2.0 mm |
| Micro Welding Function | Optional, less than 100 µm |
| Focusing Objective | 150 mm |
| Pulse Shaping | 9 Programmable Pulse Shapes |
Optical Viewing System
| Parameter | ALV 120 (WINLaserNC) |
|---|---|
| Microscope | Leica Microscope Attachment |
| Standard Magnification | 10× |
| Optional Magnification | 16× |
Control & Operation
| Parameter | ALV 120 (WINLaserNC) |
|---|---|
| Control Software | WINLaserNC |
| Display & Control | Touchscreen |
| Movement Control | Precision Joystick |
| Operating Modes | Manual / Semi-Automatic / Automatic |
| Pulse Programming | Programmable |
| External Software Interface | External PC Connectivity |
| Multifunctional Footswitch | Optional |
Working Chamber
| Parameter | ALV 120 (WINLaserNC) |
|---|---|
| Chamber Dimensions (W × D × H) | 580 × 420 × 530 mm |
| Mounting Plate (W × D) | 455 × 315 mm |
| Table Feed-Through | Ø 46 × 40 mm |
| Maximum Workpiece Weight | 50 kg (Centred Load) |
| Movement Range (X × Y × Z) | 110 × 90 × 280 mm |
| Movement Speed | 0–25 mm/s |
| Fume Extraction | Integrated |
External Dimensions
| Parameter | ALV 120 (WINLaserNC) |
|---|---|
| Machine Dimensions (W × D × H) | 650 × 1160 × 1590 mm |
| Weight | Approx. 260 kg |
Electrical Connection
| Parameter | ALV 120 (WINLaserNC) |
|---|---|
| Power Supply | 200–240 V |
| Frequency | 50–60 Hz |
| Electrical Protection | 16 A |
Maintenance & care
- Clean the microscope optics and protective glass regularly to maintain clear visibility and consistent welding performance.
- Keep the working chamber free from dust, metal particles and welding residue.
- Inspect the integrated fume extraction system and maintain filters as recommended.
- Check the joystick and X, Y and Z movement mechanisms for smooth and accurate operation.
- Inspect the mounting plate and workpiece fixtures periodically.
- Check the laser focusing objective for contamination or damage.
- Ensure shielding gas nozzles and connections are clean and functioning correctly.
- Inspect optional rotary-axis mechanisms and ensure smooth rotation.
- Maintain the WINLaserNC software, control computer and program backups according to manufacturer recommendations.
- Check electrical connections and operating conditions periodically.
- Schedule regular inspection and servicing through qualified technicians.
May we help?
- What type of laser does the ALV 120 (WINLaserNC) use?
- The ALV 120 (WINLaserNC) uses a 120 W Nd:YAG laser with a wavelength of 1064 nm, operating in pulsed mode. It delivers 9 kW peak pulse power and 75 J pulse energy, with pulse durations of 0.5–20 ms, pulse frequencies from single pulse to 50 Hz and a 0.2–2.0 mm welding spot.
- What is the difference between the ALV 120 and the ALV 120 (WINLaserNC)?
- Both use the same 120 W Nd:YAG laser, working chamber and motorised X, Y and Z axes. The standard ALV 120 offers 5 pulse shapes with SPS and is operated manually or semi-automatically by joystick, with WINLaserNC available as an option. The ALV 120 (WINLaserNC) comes with WINLaserNC software for programmable welding sequences, automatic movement, 9 programmable pulse shapes and an interface for external PC control.
- What size of components can the ALV 120 (WINLaserNC) handle?
- The enclosed working chamber measures 580 × 420 × 530 mm, with a 455 × 315 mm mounting plate for workpieces up to 50 kg (central load). Motorised X, Y and Z axes travel 110 × 90 × 280 mm at 0–25 mm/s, and optional wing doors make it easier to load long components such as tubes and sensors.
- How is the ALV 120 (WINLaserNC) programmed and operated?
- The ALV 120 (WINLaserNC) is operated through a touchscreen with WINLaserNC software, which supports programmable welding sequences and manual, semi-automatic or automatic movement of the X, Y and Z axes, controlled by joystick or by program.
- What are the power and space requirements of the ALV 120 (WINLaserNC)?
- The ALV 120 (WINLaserNC) requires a 200–240 V / 50–60 Hz / 16 A supply. It measures 650 × 1160 × 1590 mm and weighs approx. 260 kg, with fume extraction integrated.