DIY Mini Fiber Laser Cutting Head – SMA905 Interface, Up to 2000W, Manual/Auto Focus

The DIY Mini Fiber Laser Cutting Head is a compact, versatile optical assembly designed for laser cutting, engraving, and prototyping applications. Engineered for hobbyists, makers, and small-scale industrial users, this cutting head features an SMA905 interface, supports laser power up to 2000W, and offers both manual and automatic focus options. With integrated beam centering, capacitive height sensing, and modular nozzle design, it provides professional-grade functionality in a miniaturized, accessible format.

Key Features

• High-Power Compatibility: Supports fiber laser power up to 2000W, ideal for cutting and engraving metals, plastics, and composites.

• SMA905 Fiber Interface: Standard connector ensures compatibility with most fiber laser sources.

• Focus Adjustment Options:

  • Manual Focus: ±5mm fine-tuning for precise beam positioning.

  • Automatic Focus: Integrated capacitive sensor enables automatic height following for consistent cutting depth.

• Wide Wavelength Range: Compatible with 915–1064nm lasers without lens change; other wavelengths available with coated lens replacement.

• Modular Nozzle System: Standard threaded nozzle allows easy swapping for different aperture sizes to optimize cut quality.

• Beam Centering Function: Built-in alignment feature ensures accurate beam positioning through the optical path.

• Protective Lens Cartridge: Quick-change lens design simplifies maintenance and reduces downtime.

• Compact & Lightweight: Miniaturized design (150×70×60mm) with net weight of 415g for easy integration into DIY or small-format CNC systems.

• Cooling & Gas Support:

  • Water cooling: 6mm OD tubing, ≥50L/min flow recommended.

  • Assist gas: 6mm OD tubing, 7–15bar pressure range.

Technical Specifications

Available Models & SKU Details

Notes:

• All models include D20F70 focusing lens, beam centering, and interchangeable nozzle.

• Straight (0°) models are for standard horizontal mounting; 90° models are for vertical or angled beam delivery.

• Auto-focus models include integrated capacitive sensor for automatic height control.

Application Range

• Metal Cutting & Engraving: Stainless steel, mild steel, aluminum (up to 3mm thickness).

• Plastic & Acrylic Processing: Cutting, marking, and prototyping.

• Woodworking & Crafting: Detailed engraving and cutting for DIY projects.

• PCB & Electronic Prototyping: Precision ablation and circuit board depaneling.

• Education & Research: Laser system integration for labs and maker spaces.

• Small-Scale Production: Custom signage, jewelry making, model building.

Installation & Integration

• Compatible with most CNC routers, gantry systems, and laser engraving frames.

• Requires fiber laser source with SMA905 connector, water chiller, and air compressor/gas supply.

• Includes mounting holes for standard M4 or M5 screws.

• Electrical connection for capacitive sensor (auto-focus models) required.

Accessories & Consumables

• Lens Options: D20F70 standard; other focal lengths and coatings available.

• Nozzle Kits: Various aperture sizes (1.0mm, 1.5mm, 2.0mm, etc.) for different materials and cut widths.

• Protective Windows: Replaceable cover glass to protect internal optics.

• Mounting Brackets: Adjustable brackets for XYZ positioning.

Performance Guidelines

• Material Thickness: Optimal for materials ≤3mm; thicker materials require higher power or multiple passes.

• Cutting Speed: Varies based on material, power, and focal length; typical range 5–50mm/s.

• Maintenance: Regular cleaning of lens and nozzle; periodic inspection of water and gas lines.

• Safety: Always use appropriate laser safety enclosures, eyewear, and ventilation when operating.

Package Contents

• 1× Laser Cutting Head (model as selected)

• 1× D20F70 Focusing Lens (installed)

• 1× Standard Nozzle (1.5mm aperture typical)

• 1× Set of mounting screws

• Basic installation guide

Note for DIY Users
This product is designed for users with technical knowledge of laser systems, CNC integration, and workshop safety. Proper cooling, gas assist, and electrical setup are essential for performance and longevity. Always follow laser safety protocols and local regulations.