Laser Technologies

AL-Q 300

Advanced Automated Laser Welding with 300 W QCW Fibre Laser Technology

Summary: The AL-Q 300 is an enclosed laser welding system from ALPHA LASER for automated precision welding. It pairs a 300 W QCW fibre laser with pulsed and continuous wave (CW) modes, 3 kW peak pulse power and 30 J pulse energy with programmable X, Y and Z positioning accurate to below 0.02 mm, WINLaser 5 control software and a Performance Level d safety design.

AL-Q 300 — Closed Laser Welding Machine
  • 300 W Average laser power
  • 3 kW Peak pulse power
  • 30 J Pulse energy
  • Pulsed / CW Operating modes

Product description

The ALPHA LASER AL-Q 300 is an enclosed laser welding system specially developed for automated production and precision welding applications where consistent weld quality, process reliability and repeatability are essential. Equipped with a 300 W QCW fibre laser source, it delivers 3 kW peak pulse power and 30 J pulse energy, making it suitable for demanding industrial welding applications.

Designed for automated production environments, the AL-Q 300 combines an enclosed laser welding cell, advanced WINLaser 5 control software, programmable X, Y and Z positioning and flexible integration options. Its combination of pulsed and continuous wave (CW) welding capabilities makes it suitable for applications requiring controlled energy input, precise positioning and consistent weld seams.

The AL-Q 300 is designed to provide reliable and consistent laser welding performance for industrial manufacturing applications. Its QCW fibre laser operates at a wavelength of 1070 nm and supports both pulsed and continuous wave (CW) welding modes, allowing operators to adapt the welding process to different materials, component geometries and production requirements.

With 300 W average laser power, 3 kW peak pulse power and 30 J pulse energy, the system provides enhanced welding capability for applications requiring higher laser output. Its adjustable pulse duration and welding spot diameter allow precise control over the welding process.

The system features an enclosed working chamber with a precision mounting plate, motorised X, Y and Z positioning and programmable control through WINLaser 5 software. Optional rotary-axis configurations, wire feeding systems and production connectivity interfaces further expand its application flexibility.

With an enclosed safety design, touchscreen operation and external fume extraction connectivity, the AL-Q 300 provides a compact and flexible solution for automated precision laser welding and series production.

Optional Accessories

  • WINLaser CSP Interface: Connectivity package for production integration and job management.
  • I/O Interface: Enables communication with external equipment and automation systems.
  • Rotary Axis: Jaw chuck or pneumatic collet configurations for rotational welding applications.
  • AL-DV Wire Feeder: Automatic wire feeding for laser wire deposition welding.
  • Tilt-Swivel Objective: Provides greater flexibility when welding components with difficult-to-access positions.
  • Air Curtain: Helps protect optical components from contamination.
  • Crossjet: Supports protection of the optical system during welding.
  • Pneumatic Connection: Additional pneumatic functionality inside the working chamber.
  • External Chiller: Optional external cooling arrangement.
  • AL-Autofocus: Automatic focusing functionality.
  • Sealing Air: Additional protection for optical components.


Features

High-Performance QCW Fibre Laser Source

Equipped with a 300 W QCW fibre laser source operating at 1070 nm, the system delivers up to 3 kW peak pulse power and 30 J pulse energy for precise and consistent welding applications.

Pulsed and Continuous Wave Welding

Supports both pulsed and continuous wave (CW) operating modes, offering flexibility for different materials, component geometries and welding requirements.

Precise Pulse Control

Adjustable pulse duration from 0.2–50 ms and pulse frequency up to 100 Hz allow operators to customise welding parameters according to application requirements.

Advanced Working Chamber

The enclosed working chamber provides a spacious area for positioning and securing components. The standard working chamber measures 900 × 650 × 850 mm, with an extended chamber option available.

Programmable X, Y and Z Movement

The motorised positioning system provides controlled movement across three axes, with a standard travel range of 210 × 175 × approximately 300 mm and positioning accuracy below 0.02 mm.

WINLaser 5 Control Software

The system uses ALPHA LASER's WINLaser 5 control software, providing convenient programming and operation through an integrated industrial PC and touchscreen interface.

Automated Production Integration

Designed for industrial production environments, the AL-Q 300 supports optional I/O interfaces and WINLaser CSP connectivity for integration with manufacturing systems and production workflows.

Enclosed Laser Safety Design

The enclosed welding cell is designed to meet Performance Level d safety requirements, supporting safe operation in industrial production environments.

Flexible Rotary-Axis Integration

Optional rotary-axis configurations, including jaw chuck and pneumatic collet systems, allow additional flexibility for rotational welding applications.

External Fume Extraction Connection

The system supports external fume extraction to remove welding fumes from the working chamber, helping maintain a cleaner operating environment.

Laser Specifications

ParameterAL-Q 300
Laser TypeQCW Fibre Laser
Wavelength1070 nm
Average Power300 W
CW Power300 W
Peak Pulse Power3 kW
Pulse Energy30 J
Pulse Duration0.2–50 ms / CW
Pulse FrequencySingle pulse–100 Hz
Beam Parameter Product (50 µm Fibre)2–3 mm·mrad
Operating ModePulsed / CW
Welding Spot Diameter0.2–2.0 mm
Focusing Objective150 mm
CoolingAir

Control System

ParameterAL-Q 300
Operating SystemWINLaser 5
Job ManagementWINLaser CSP (Optional)
Display & InputTouchscreen, Mouse and Keyboard
Safety RequirementsPerformance Level d

Working Chamber

ParameterAL-Q 300
Standard Chamber (W × D × H)900 × 650 × 850 mm
Extended Chamber (W × D × H)1300 × 650 × 850 mm
Standard Worktable (W × D)610 × 440 mm
Extended Worktable (W × D)500 × 390 mm
Worktable Mounting PatternM5 Hole Pattern
Maximum Workpiece Weight100 kg (Centred)
Standard Travel Range (X × Y × Z)210 × 175 × Approx. 300 mm
Extended Travel Range (X × Y × Z)310 × 225 × Approx. 300 mm
Positioning Accuracy (X, Y, Z)Less than 0.02 mm
Travel Speed (X, Y, Z)25 mm/s

External Dimensions

ParameterAL-Q 300
Standard (W × D × H), Operating Position1850 × 1775 × 2470 mm
Extended (W × D × H), Operating Position2380 × 2105 × 2470 mm
Transport Position (W × D × H)1250 × 1140 × 1990 mm
WeightApprox. 475 kg
Extended Version WeightApprox. 500 kg

Electrical & Media Connections

ParameterAL-Q 300
Electrical Connection3 × 400 V / 50–60 Hz / 3 × 16 A
Fume ExtractionNW45 Connection
Extraction Volume Flow50–250 m³/h
Shielding Gas Connection6 mm Push-in Fitting
Compressed Air Connection6 mm Push-in Fitting (Optional Applications)
Cooling Water ConnectionOptional External Cooling

Maintenance & care

  • Clean the focusing optics and protective glass regularly to maintain consistent laser performance.
  • Keep the working chamber free from dust, metal particles and welding residue.
  • Inspect the mounting plate and fixture positioning points periodically.
  • Check the X, Y and Z movement mechanisms for smooth and accurate operation.
  • Inspect the external fume extraction system and maintain filters as recommended.
  • Check shielding gas connections and compressed-air connections periodically.
  • Ensure electrical connections and cooling arrangements are maintained according to manufacturer guidelines.
  • Inspect optional rotary-axis systems and wire-feeding accessories regularly.
  • Keep the touchscreen and control system clean and ensure software operates correctly.
  • Schedule periodic inspection and servicing through qualified technicians.


May we help?

What type of laser does the AL-Q 300 use?
The AL-Q 300 uses a 300 W QCW fibre 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 of 0.2–50 ms or CW, pulse frequencies from single pulse to 100 Hz and a 0.2–2.0 mm welding spot.
How does the AL-Q 300 compare with the other AL-Q models?
The AL-Q range comprises four QCW fibre laser models: AL-Q 150 (1.5 kW peak pulse power, 15 J), AL-Q 300 (3 kW, 30 J), AL-Q 450 (4.5 kW, 45 J) and AL-Q 600 (6 kW, 60 J). The 150 and 300 are air-cooled, while the 450 and 600 support air or water cooling. All share the same working chamber, travel ranges, WINLaser 5 control and Performance Level d safety design.
What working area and travel does the AL-Q 300 offer?
The standard enclosed chamber measures 900 × 650 × 850 mm (1300 × 650 × 850 mm extended), with a 610 × 440 mm worktable with M5 hole pattern for workpieces up to 100 kg, centred. Programmable X, Y and Z axes travel 210 × 175 × approx. 300 mm as standard (310 × 225 × approx. 300 mm extended) at 25 mm/s, with positioning accuracy below 0.02 mm.
Can the AL-Q 300 be integrated into automated production?
Yes. The AL-Q 300 is controlled by WINLaser 5 software on an integrated industrial PC with touchscreen, mouse and keyboard, and supports optional I/O interfaces and WINLaser CSP connectivity for integration with manufacturing systems. The enclosed welding cell is designed to meet Performance Level d safety requirements.
What are the installation requirements for the AL-Q 300?
The AL-Q 300 requires a 3 × 400 V / 50–60 Hz / 3 × 16 A supply, an external fume extraction system on its NW45 connection (50–250 m³/h) and a 6 mm shielding gas supply. In operating position the standard version measures 1850 × 1775 × 2470 mm and weighs approx. 475 kg (extended version approx. 500 kg).

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