Laser Engraving Module - 5W & Air Assist Nozzle - Workshop Detail

SPECIFICATIONS

• Model: LT-40W-AA; one selectable configuration.
• Function: engraving and cutting module for compatible CNC/DIY laser engraving machines; not a complete engraver.
• Housing: aluminium alloy.
• Optical output: supplier lists 5W ±0.5W. The separate Effect Output Power 40W label is not optical output and its basis is unspecified.
• Electrical supply: 12V DC, nominal 1.8A; supplier range 1.5–2A.
• Focus: fixed. Specification lists 23mm focal length; cutting guidance separately uses 45mm with a 38mm nozzle, placing focus 7mm below the nozzle. Reference points are unclear; confirm the actual focus procedure in the manual.
• Interface: XH2.54-3P socket; power adjustment via 5V PWM modulation. Confirm pinout and controller compatibility before connection.
• Module dimensions: 40×40×121mm.
• Module weight: 240g.
• Supplier-listed engraving resolution: 0.08mm; test conditions unspecified.
• Supplier cutting example: one pass through 4mm plywood at 190mm/min and 100% power, with air assist. A later heading specifies bass plywood; results depend on material, focus and airflow.
• Supplier stainless-steel engraving example: 800mm/min; surface preparation and test conditions unspecified. This is not a metal-cutting claim.
• Air-assist nozzle: intended to clear debris, reduce burn marks and limit lens contamination. Air pump inclusion, required flow and pressure are not supplied in the text.
• Nozzle diameter: 6mm outside, 3.5mm inside.
• Air tube diameter: 8mm outside, 6mm inside; tube inclusion not separately established.
• Magnetic removable light-filtering cover described. It is not a substitute for appropriate laser-rated eye protection or an enclosure.
• Supplier describes one additional protective window glass for maintenance.
• P-DA-01 driver adapter board: supplier says included for interface/power conversion. For a 24V host machine, source still requires a separate 12V supply; do not connect the module directly to 24V.
• Compatibility: source names several obscured machine brands, insufficient to establish specific fitment. Verify mounting, voltage, pinout, PWM and adapter requirements for the exact host.
• Supplier focus example for 4mm plywood: nozzle-to-surface gap 5mm, based on its stated 7mm below-nozzle focus; for engraving, focus at the material surface. Verify against the supplied manual before using these values.
• Certification label: CE; supporting documentation not independently verified.
• High-concerned chemical: none declared.
• Complete kit inventory, wavelength and laser safety classification are not supplied in the text.

Use appropriate wavelength-rated laser eye protection, a suitable enclosure and fume extraction. Never rely on the magnetic cover as permission to operate without goggles. Keep the beam away from people and reflective surfaces, confirm safe material compatibility and never leave cutting unattended.