ALW 300 F
Advanced 300 W Fiber Laser Welding with Pulsed and Continuous-Wave Operation
Summary: The ALW 300 F is an enclosed fiber laser welding system from ALPHA LASER for precision welding, component repair and series production. It pairs a 300 W fiber laser with pulsed and continuous wave (CW) modes, 3 kW peak pulse power and 30 J pulse energy with motorised XYZ positioning for workpieces up to 400 kg, WINLaserNC programmable control, a multifunctional footswitch and a Leica Ergotubus observation system.
- 300 W Average laser power
- 3 kW Peak pulse power
- 30 J Pulse energy
- Pulsed / CW Operating modes
Product description
The ALPHA LASER ALW 300 F is an advanced enclosed fiber laser welding system developed for precision welding, component repair and industrial series production. Equipped with a 300 W fiber laser source operating at a wavelength of 1070 nm, it delivers up to 3 kW peak pulse power and 30 J pulse energy, providing controlled and consistent welding performance for demanding applications.
Designed for flexibility, accuracy and repeatability, the ALW 300 F supports both pulsed and continuous-wave (CW) welding modes. Its motorised XYZ-axis positioning, joystick-controlled workpiece movement, WINLaserNC programmable software and ergonomic Leica Ergotubus observation system make it suitable for applications requiring precise positioning and consistent welding quality.
The ALW 300 F is designed to provide advanced fiber laser welding capabilities for industrial components, precision assemblies and specialised manufacturing applications. Its 300 W fiber laser operates at 1070 nm and supports adjustable pulse duration from 0.2 ms to continuous-wave operation, allowing operators to adapt the welding process according to material properties, component geometry and application requirements.
A key advantage of the ALW 300 F is its dual operating capability, supporting both pulsed and continuous-wave welding. This provides flexibility for applications requiring controlled energy delivery as well as continuous welding operations.
The system features a spacious enclosed working chamber with motorised XYZ-axis positioning and joystick control. Its WINLaserNC software, operated through an integrated PC and touchscreen interface, supports programmable welding processes and repeatable production operations.
With an ergonomic Leica Ergotubus microscope, multifunctional footswitch, adjustable pulse shaping and provision for external extraction equipment, the ALW 300 F provides a versatile solution for precision industrial laser welding.
Optional Accessories
- Turn-and-tilt focusing objective for flexible welding positions
- Rotary-axis module for rotational welding applications
- Optical cooling system
- Sealing-air system for additional optical protection
- Crossjet for protection of optical components
- Camera system for demonstrating and monitoring the welding process
- Optional micro-welding function for delicate components
- External cooling system
- Multifunctional footswitch for convenient laser parameter adjustment
- WINLaserNC software for programmable welding operations
Features
High-Performance 300 W Fiber Laser Source
Equipped with a 300 W fiber laser source operating at 1070 nm, the system delivers up to 3 kW peak pulse power and 30 J pulse energy for precision welding applications.
Pulsed and Continuous-Wave Welding
Supports both pulsed and continuous-wave (CW) operating modes, offering flexibility for different materials, component thicknesses and welding requirements.
Precise Pulse Control
Adjustable pulse duration from 0.2 ms to continuous-wave operation and pulse frequency up to 100 Hz allow operators to fine-tune laser parameters according to application requirements.
Advanced Pulse Shaping
Adjustable power curves within each laser pulse help control energy delivery, optimise heat input and achieve consistent welding results.
WINLaserNC Programmable Control
The integrated WINLaserNC software enables programmable welding sequences and automated process control, supporting repeatability and efficient series production.
Motorised XYZ-Axis Positioning
The motorised three-axis movement system enables accurate workpiece positioning through an integrated joystick. Manual and programmable movement capabilities support different welding requirements.
Spacious Working Chamber
The enclosed working chamber accommodates components of different sizes and geometries. Its large mounting plate and wide-opening doors facilitate convenient loading and positioning of industrial workpieces.
Ergonomic Leica Observation System
The Leica Ergotubus observation system provides comfortable visual access to the welding area, including eyepieces designed for operators who wear glasses.
Multifunctional Footswitch Control
The multifunctional footswitch allows operators to adjust laser parameters during welding without taking their hands away from the workpiece.
Flexible Focusing Options
The system supports a 150 mm focusing objective, with additional optical configurations available according to application requirements.
Optional Micro-Welding Function
An optional micro-welding function supports specialised precision applications requiring very small welding spots below 100 µm.
Specifications
| Parameter | ALW 300 F |
|---|---|
| Laser Type | Fiber Laser |
| Wavelength | 1070 nm |
| Average Power | 300 W |
| CW Power | 300 W |
| Peak Pulse Power | 3 kW |
| Pulse Energy | 30 J |
| Pulse Duration | 0.2 ms – CW |
| Pulse Frequency | Single pulse–100 Hz |
| Operating Modes | Pulsed / CW |
| Beam Parameter Product at 50 µm | 2–3 mm × mrad |
| Welding Spot Diameter | 0.3–3.0 mm |
| Optional Micro-Welding Spot | Below 100 µm |
| Focusing Objective | 150 mm |
| Pulse Shaping | Adjustable power curve within a laser pulse |
| Display & Control | Touchscreen with multifunctional footswitch |
| Software | WINLaserNC through integrated PC |
| Observation System | Leica Ergotubus with eyepieces for glasses wearers |
| Working Chamber (W × D × H) | 1080 × 850 × 450 mm |
| Mounting Plate (W × D) | 600 × 475 mm |
| Maximum Workpiece Weight | 400 kg, central load |
| Workpiece Movement | Motorised through joystick |
| Movement Range (X × Y × Z) | 490 × 400 × 350 mm |
| External Dimensions (W × D × H) | 1190 × 1400 × 1500 mm |
| Weight | Approx. 870 kg |
| Electrical Connection | 3 × 400 V / 50–60 Hz / 3 × 16 A |
| External Cooling | Optional |
| Fume Extraction | Connection for external extraction equipment |
Maintenance & care
- Clean the Leica observation optics and protective glass regularly using approved cleaning materials.
- Keep the working chamber and mounting plate free from dust, metal particles and welding residue.
- Inspect the laser focusing optics and protective components periodically.
- Check the extraction connection and maintain the external fume extraction equipment as recommended.
- Ensure smooth movement of the motorised X, Y and Z axes.
- Inspect joystick controls, touchscreen and multifunctional footswitch regularly.
- Check the optical cooling and sealing-air connections, where fitted.
- Inspect optional rotary-axis mechanisms and accessories periodically.
- Verify electrical and cooling connections according to manufacturer guidelines.
- Schedule preventive maintenance through qualified service technicians.
May we help?
- What type of laser does the ALW 300 F use?
- The ALW 300 F uses a 300 W fiber laser with a wavelength of 1070 nm. It works in both pulsed and continuous wave (CW) modes, offering 300 W CW power, 3 kW peak pulse power and 30 J pulse energy, with pulse durations from 0.2 ms to CW, pulse frequencies from single pulse to 100 Hz and a 0.3–3.0 mm welding spot.
- How is the ALW 300 F different from the ALW 300?
- The ALW 300 uses a 300 W Nd:YAG laser (1064 nm) with 9 kW peak pulse power and 90 J pulse energy in pulsed mode only. The ALW 300 F uses a 300 W fiber laser (1070 nm) with 3 kW peak pulse power and 30 J pulse energy, and adds continuous wave (CW) welding, a 0.3–3.0 mm welding spot and a larger 490 × 400 × 350 mm movement range.
- What size of components can the ALW 300 F handle?
- The enclosed working chamber measures 1080 × 850 × 450 mm, with a 600 × 475 mm mounting plate for workpieces up to 400 kg (central load). Motorised X, Y and Z axes, controlled by joystick, offer a movement range of 490 × 400 × 350 mm, and wide-opening doors simplify loading larger parts.
- How is the ALW 300 F programmed and operated?
- The ALW 300 F is controlled by WINLaserNC software on an integrated PC with touchscreen, supporting programmable welding sequences and repeatable series production. A multifunctional footswitch lets operators adjust laser parameters during welding without taking their hands off the workpiece.
- What are the installation requirements for the ALW 300 F?
- The ALW 300 F requires a 3 × 400 V / 50–60 Hz / 3 × 16 A supply and has a connection for external fume extraction equipment. External cooling is available as an option.