ALFlak 900 F
A mobile fiber laser welding system with 900 W average and CW power, 9 kW peak pulse power and integrated lens water cooling.

- 900 W Average / CW power
- 9 kW Peak pulse power
- 90 J Pulse energy
- Integrated Lens water cooling
Product description
The Alpha Laser ALFlak 900 F is a mobile fiber laser welding system designed for precision welding with pulsed and continuous-wave operation. Its 1,070 nm fiber laser provides 900 W average and CW power, 90 J pulse energy and up to 9 kW peak pulse power. Pulse duration from 0.2–50 ms/CW and three-axis movement across 340 × 330 × 370 mm provide controlled processing. Integrated lens water cooling supports the system configuration.
Features
Fiber Laser Technology
Uses a 1,070 nm fiber laser with 900 W average and CW power.
9 kW Peak Pulse Power
Provides peak pulse power of up to 9 kW with 90 J pulse energy.
Pulsed and CW Operation
Supports both pulsed and continuous-wave operating modes.
Flexible Pulse Duration
Supports pulse duration from 0.2–50 ms/CW.
Variable Welding Spot
Provides Ø0.3–3.0 mm welding spots, with an optional range of 1.1–4.0 mm.
Three-Axis Positioning
The processing head moves across X, Y and Z axes within a 340 × 330 × 370 mm range.
Integrated Lens Water Cooling
Includes integrated water cooling for the lens.
Touchscreen Operation
Laser parameters can be controlled through the touchscreen, multifunctional footswitch and WINLaser 4 software.
ALFlak 900 F specification
| Specification | Details |
|---|---|
| Model | ALFlak 900 F |
| Laser Type / Wavelength | Fiber laser, 1,070 nm |
| Average Power | 900 W |
| CW Power | 900 W |
| Peak Pulse Power | 9 kW |
| Pulse Energy | 90 J |
| Pulse Duration | 0.2–50 ms / CW |
| Operating Modes | Pulsed / CW |
| Welding Spot | Ø0.3–3.0 mm, optional 1.1–4.0 mm |
| Display and Operation | Touchscreen; laser parameters can also be set using a multifunctional footswitch; WINLaser 4 software can be operated through a touchscreen |
| Focusing Objective | 150 mm, further according to lens data sheet |
| Pulse Shaping | Adjustability of power curve within a laser pulse |
| Observation Lens | Leica microscope attachment with eyepieces for glasses wearers 10 ×, optional 16 × |
| Movement Mechanism | Processing head can be freely positioned manually and moved by motor using a joystick |
| Movement Speed (X, Y, Z) | 0–25 mm/s |
| Movement Range (X, Y, Z) | 340 × 330 × 370 mm |
| Lowest Working Point | 200 mm |
| Highest Working Point | 1,500 mm |
| Arm Deflection | 1,500 mm |
| Electrical Connection | 3 × 400 V / 50–60 Hz / 3 × 16 A |
| External Dimensions (W × D × H) | 1,200 × 1,030 × 1,150 mm |
| Weight | With caterpillar track approx. 910 kg; without caterpillar track approx. 610 kg |
| External Cooling | Lens water cooling integrated |
| Options | Powder nozzle, turn and tilt objective with water cooling |
Maintenance & care
Keep optical components, the observation lens, processing area and machine surfaces clean. Inspect the movement mechanism, electrical connections and integrated lens water cooling regularly, and service the system according to the manufacturer's recommended maintenance schedule.
May we help?
- What type of laser does the ALFlak 900 F use?
- It uses a 1,070 nm fiber laser with 900 W average and CW power.
- What is the maximum pulse power?
- The ALFlak 900 F provides peak pulse power of up to 9 kW with 90 J pulse energy.
- What welding spot sizes are available?
- The standard welding spot is Ø0.3–3.0 mm, with an optional range of 1.1–4.0 mm.