ALV 120
Advanced Manual and Semi-Automatic Laser Welding with Nd:YAG Technology
Summary: The ALV 120 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, precision joystick 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 is a compact enclosed laser welding system specially developed for precision 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, providing controlled and consistent welding performance.
Designed for precision applications in limited workshop spaces, the ALV 120 combines an integrated laser source, motorised X, Y and Z movement system, built-in fume extraction and an enclosed laser-safe working chamber. Its precision joystick control, ergonomic workstation design and intuitive touchscreen operation make it suitable for micro welding, tool and mould repair, sensor manufacturing and medical technology applications.
The ALV 120 is designed to provide accurate, reliable and convenient laser welding for small and intricate components. Its pulsed Nd:YAG laser operates at a wavelength of 1064 nm, with adjustable pulse duration and welding spot diameter to accommodate different materials and component geometries.
A key feature of the ALV 120 is its motorised three-axis movement system, which allows operators to position workpieces precisely using a joystick. The system supports manual, semi-automatic and optional fully automatic operation through WINLaserNC software.
Its enclosed working chamber can be quickly converted into an open configuration for processing larger or longer components. Wide-opening doors simplify workpiece loading, while optional wing doors with side slots support applications involving long tubes and sensors.
With integrated fume extraction, ergonomic microscope viewing, optional micro welding functionality and rotary-axis compatibility, the ALV 120 offers a versatile solution for precision manual and specialised laser welding applications.
Optional Accessories
- Micro Welding Function: Reduces the welding spot diameter to less than 100 µm for extremely fine welding applications.
- Rotary Axis Module: Enables rotational welding of cylindrical components, with a tiltable configuration for horizontal-to-vertical positioning.
- Pneumatic Rotary Axis: Supports convenient and flexible component clamping.
- WINLaserNC Software: Enables programmable and fully automatic welding operations.
- 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.
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.
Precise Pulse Control
Adjustable pulse duration from 0.5–20 ms and pulse frequency up to 50 Hz allow operators to fine-tune welding parameters according to material properties and application requirements.
Optional Micro Welding Function
The optional micro welding function reduces the welding spot diameter to less than 100 µm, making it suitable for extremely fine welding applications and delicate components.
Motorised X, Y and Z Movement
The integrated three-axis movement system provides precise workpiece positioning, with a movement range of 110 × 90 × 280 mm and adjustable movement speeds up to 25 mm/s.
Precision Joystick Operation
The precision joystick allows operators to control workpiece movement directly across all three axes, supporting manual and semi-automatic welding operations.
Convertible Enclosed Working Chamber
The enclosed laser-safe working chamber can be quickly converted into an open configuration, allowing larger or longer components to be processed conveniently.
Integrated Fume Extraction
The built-in extraction system helps remove welding fumes from the working chamber, maintaining a cleaner operating environment.
Advanced Pulse Shaping
The system provides adjustable power curves within individual laser pulses, supporting up to 5 pulse shapes with SPS and 9 with WINLaserNC for greater process flexibility.
Ergonomic Optical Viewing
The Leica microscope attachment with 10× magnification supports detailed visual inspection during welding. Optional 16× magnification is available.
WINLaserNC Automation
Optional WINLaserNC software enables programmable automatic welding operations, making the system suitable for repeatable production and small-batch manufacturing.
Flexible Rotary-Axis Integration
Optional rotary-axis configurations allow cylindrical components to be positioned and rotated for specialised welding applications.
Ergonomic Workstation Design
The compact housing provides comfortable arm positioning and generous legroom, allowing operators to work conveniently during extended precision welding operations.
Laser Specifications
| Parameter | ALV 120 |
|---|---|
| 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 | 5 pulse shapes with SPS / 9 with WINLaserNC |
Optical Viewing System
| Parameter | ALV 120 |
|---|---|
| Microscope | Leica Microscope Attachment |
| Standard Magnification | 10× |
| Optional Magnification | 16× |
Control & Operation
| Parameter | ALV 120 |
|---|---|
| Display & Control | Touchscreen |
| Movement Control | Precision Joystick |
| Operating Modes | Manual / Semi-Automatic / Automatic (Optional) |
| Automatic Control Software | WINLaserNC (Optional) |
| Multifunctional Footswitch | Optional |
Working Chamber
| Parameter | ALV 120 |
|---|---|
| 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 |
|---|---|
| Machine Dimensions (W × D × H) | 650 × 1160 × 1590 mm |
| Weight | Approx. 260 kg |
Electrical Connection
| Parameter | ALV 120 |
|---|---|
| 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 the shielding gas nozzles and connections are clean and functioning correctly.
- Inspect optional rotary-axis mechanisms and ensure smooth rotation.
- Check electrical connections and operating conditions according to manufacturer guidelines.
- Schedule periodic inspection and servicing through qualified technicians.
May we help?
- What type of laser does the ALV 120 use?
- The ALV 120 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 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.
- Can the ALV 120 weld automatically?
- Yes, with the optional WINLaserNC software. As standard, the ALV 120 is operated by touchscreen and a precision joystick for manual and semi-automatic welding, and WINLaserNC adds programmable, fully automatic welding operations.
- What are the power and space requirements of the ALV 120?
- The ALV 120 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.