K3 Air-cooled Handheld Fiber Laser Welding Machine

Product Overview

The LNX-K3 is an 800W air-cooled handheld fiber laser welder designed for metal fabricators, professional workshops, and manufacturers working with deeper-welding and higher-throughput applications.

It welds stainless steel, aluminum, and carbon steel with a rated welding depth of up to 3 mm. The air-cooled design requires no separate water chiller, while continuous and pulse modes support flexible welding applications.

The K3 features a DWS20 welding gun, 0.8–1.6 mm single-wire feeding, a 20 μm fiber core, and a welding speed of 5–20 mm/s, making it suitable for industrial equipment, heavy machinery, automotive components, structural fabrication, pipelines, metal furniture, and general manufacturing.

Key Features

800W Air-Cooled System — Higher output for deeper-welding applications up to 3 mm.
0.8–1.6 mm Wire Feeding — Supports a wider range of filler wire sizes.
20 μm Fiber Core & 5–20 mm/s Speed — Designed for deeper and higher-throughput welding applications.

The LNX-K3 is a practical choice for businesses seeking a higher-output laser welding solution for deeper-welding fabrication and production.

Technical Specifications

Parameter Specification
Model No. LNX- K3
Rated Output Power 800W
Welding Gun DWS20
Wire Feeder Single-wire
Software Functions Continuous / Pulse
Wire Feeding Range Single 0.8-1.6mm
Welding Speed 5-20mm/s
Function Description Welding within 3mm width
Common Welding Materials Stainless Steel / Aluminum / Carbon Steel
Power Consumption 0.6 kWh/hour
Fiber Interface Type MiniQBH
Operating Temperature -20°C to 45°C
Wavelength Range 1080±10nm
Fiber Core Diameter 20μm
Output Fiber Length 5m
Welding Depth 3mm
Power Supply AC220V 50/60Hz
Cooling Method Air-cooled
Total Power Consumption ≤3500W
Dimensions 516mm × 318mm × 550mm
Weight ≤35kg

Application Areas

The LNX- K3 Handheld Laser Welder is engineered for heavy-duty industrial welding applications including: thick-gauge stainless steel tank and vessel fabrication, aluminum alloy structural framework welding, carbon steel heavy machinery component joining, automotive exhaust system and chassis welding, industrial pipeline and pressure vessel construction, metal furniture and architectural fixture manufacturing, shipbuilding and marine equipment welding, and any application requiring deep penetration welding up to 3mm on ferrous and non-ferrous metals at production-line speeds.

Note: The LNX- K3 represents the flagship of the K-series handheld laser welders, It delivers 50% greater welding depth (3mm vs 2mm) thanks to its upgraded 20um fiber core diameter. With expanded wire range (0.8-1.6mm) and faster welding speeds (5-20mm/s), the LNX- K3 is the optimal choice for production lines requiring maximum penetration depth without moving to dual-wire systems.

Technical Resources

Not sure which machine fits your workshop? Explore our laser welding guides and industry insights to make the right choice.

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