Published material claims
SFX publishes 4.5 mm stainless/carbon/galvanized, 3.5 mm aluminum and 2 mm brass/copper for ALW-1400. OMTech publishes up to 4 mm stainless/carbon and 2 mm aluminum for its 1500W system.
Cooling and chassis
SFX positions ALW-1400 as an integrated air-cooled system with built-in wire feeding. Verify the exact OMTech package/cooling configuration before comparing footprint or maintenance.
What the wattage number misses
This is a good example of why 1400W versus 1500W cannot be decided from 100 watts. Material-specific claims, wire-feed integration, support and price can dominate that small optical-output difference.
SFX partner linkCheck current SFX ALW-1400 pricingCoupon: ELIRANALALUF · terms may vary.
Sources checked Primary / official sources
Checked August 26, 2026. Prices, stock, shipping and policies change. We preserve uncertainty where a manufacturer does not publish a specific value.
Safety: Handheld fiber laser welders are high-power Class 4 laser systems. LaserWeldFit provides buying research, not a welding procedure, electrical design or PPE specification. Follow the manufacturer manual, applicable regulations and qualified safety/electrical guidance.