In the field of industrial laser welding, efficiency and reliability remain the core demands of users. Driven by deep insights into real-world challenges, STRONGEST LASER launches the all-new K20 Handheld Welding Gun, powered by technological innovation to address users’ toughest pain points.
Building on the previous generation’s legacy of lightweight design and high stability, the K20 redefines performance standards in laser welding with five groundbreaking technological breakthroughs. Engineered to deliver greater ease, efficiency, and endurance, even in the most demanding environments.
Say goodbye to exhausting long-hour welding
The all-new K20 Welding Gun marks the starting point of a lightweight revolution and a leap in efficiency. Every refinement is designed to empower productivity and eliminate operator fatigue, delivering a truly effortless welding experience.
- Only 600g – 30% lighter than the previous generation, reducing fatigue during extended operation.
- 10-second quick installation – upgraded wire feeding module requires no complex calibration.
- One-click switch between single and double wire modes, doubling welding efficiency across diverse scenarios.
- 20% reduction in grip size – redesigned for palm-fit curvature and agile one-handed precision control.
Five Core Innovations Addressing the Invisible Pain Points of Welding
01. Air Shield Technology: Dual-layer protection for worry-free welding and reduced operational costs
To address issues such as spatter adhesion on lenses and heat damage to protective covers, the K20 welding gun features an optimized airflow system that creates an “air shield barrier”, blocking over 70% of welding spatter. This extends the protective lens lifespan by 30%.
When welding high-spatter materials like stainless steel and aluminum alloys, continuous operation time increases by 50%, while consumable costs drop by 20%.
02. 100,000 Extreme-Endurance Tests: Consistent Output Is the Core of Productivity
Frequent breakdowns—“minor repairs every three days, major ones every five”—disrupt welding productivity.
The all-new K20 Welding Gun features a self-developed drive motor with the core control system fully integrated into the gun body, eliminating issues like cable entanglement and signal lag. This dramatically enhances welding stability.
Tested through 100,000 high-voltage stress cycles and Level-3 anti-static interference challenges, the K20 maintains zero optical path deviation and zero signal loss, even in high electromagnetic environments.
For users, this means lower risk of equipment downtime and a significant boost in yield rate for precision tasks such as thin-sheet welding and high-reflective material processing.
03. Ultra-Flexible Armored Cable: 15-Meter Bending Radius – Durable, Agile, and Limitless in Reach
Traditional welding gun cables are bulky, prone to wear, and limit operational range.
The K20 Welding Gun features a 14mm ultra-flexible armored cable that supports an impressive 15-meter operating radius. After undergoing 100,000 cycles of 180° bending tests, it remains as flexible as new, with zero signal attenuation.
When welding large structures such as ships and construction machinery, the K20 eliminates the need for constant machine repositioning, resulting in instant efficiency gains.
04. Shock Absorption and Impact Resistance: Drop-resistant, with unwavering precision at all times
High falls and accidental impacts often lead to optical path deviation, a hidden concern in equipment usage.
The K20 Welding Gun features an innovative honeycomb structure design that has been proven through 100 drops from 1 meter. Both the core lenses and the motor remain untouched and fully functional, with stable light spot output maintained.
Whether during outdoor bumps or operational errors, the K20 ensures consistent welding precision, significantly reducing rework rates.
05. All-Weather Operation: Unwavering stability in extreme environments
The K20 Welding Gun continues the high-power integrated end cap design, eliminating the need for an external cooling system. It is capable of continuous welding at 100% load in temperatures ranging from -20°C to 60°C.
With this design, temperature differences between regions are no longer a limitation, ensuring project timelines remain unaffected by environmental conditions.
The K20 Welding Gun embodies the perfect fusion of technological innovation and craftsmanship optimization, with revolutionary design breakthroughs that push the limits of performance. Choosing the K20 means choosing efficiency, reliability, and the future of welding.
