RayTools BM111 is an auto-focus fiber laser cutting head for flat sheet metal cutting applications. It is used in fiber laser cutting machines where automatic focus adjustment, stable beam delivery and reliable assist gas flow are required for consistent cutting performance.
The BM111 is designed for medium- and low-power laser cutting applications with a power rating up to 3.3 kW. The head uses an internal servo motor drive unit to move the focusing lens automatically, allowing focus position adjustment for piercing and cutting different materials and thicknesses.
Main Features
Product type: Auto-focus fiber laser cutting head
Model: RayTools BM111
Application: Flat sheet fiber laser cutting
Power rating: ≤3.3 kW
Fiber interface: QBH
Clear aperture: 28 mm
Collimation length: F75 / F100
Focusing length: F125 / F155 / F200
Auto focus range: -12 mm to +10 mm
Focus adjustment accuracy: 0.05 mm
Cutting gas pressure: 25 bar
Protective windows: D24.9×1.5 mm upper; D27.9×4.1 mm lower
Nozzle styles: Single layer / double layer
Weight: approx. 5.7 kg
Application
The BM111 cutting head is used in flat sheet fiber laser cutting systems. It is suitable for machines where automatic focus control is required for piercing and cutting operations.
The head supports different optical configurations with F75 / F100 collimation length and F125 / F155 / F200 focusing length. Correct configuration depends on the machine, laser source, CNC system, height control system and cutting application.
Optical Protection and Maintenance
The BM111 design includes replaceable protective windows for optical protection. RayTools Germany specifies upper and lower protective window sizes for BM111, while the BM111 manual also describes a drawer-type protective lens holder designed to make replacement faster and easier during maintenance.
Regular inspection of nozzles, ceramic bodies, protective windows and seals is important for stable cutting quality. Contaminated or damaged optical protection can affect piercing, edge quality and repeatability.
Service and Consumables
The BM111 cutting head uses replaceable consumables and service parts, including nozzles, ceramic bodies, protective windows, lenses, seals and related mechanical components.
When ordering consumables or spare parts for BM111, check the exact head model, optical configuration, nozzle type, protective window size and machine compatibility. Similar-looking parts may have different dimensions, thread types or installation geometry.