u-i4s-2175 | Pro-Spot Reconditioned Spot Welder - Ready for new home
Used Pro Spot i4s Smart Spot Welder (i4s ProSpot)
This pre-owned Pro Spot i4s is an OEM-certified smart spot welder designed for modern UHSS and advanced steel repairs. Featuring Adaptive Auto Welding, built-in WiFi connectivity, and on-board training, the i4s automatically adjusts weld energy and force to deliver consistent, OEM-compliant welds. With up to 12,500 amps, 1,240 lbs of electrode force, 360° rotating water-cooled arms, and over 60 pre-programmed single-sided welding modes, the i4s remains one of the most capable and future-ready resistance spot welders available today
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CRTE-Refurbished Pro Spot i4s Smart Spot Welder
This Pro Spot i4s has been fully refurbished, inspected, and validated by the CRTE technical team. We don’t flip equipment — we tear it down, correct known wear points, service cooling and electrical systems, update software, and verify weld performance under load before it ever leaves our facility.
The i4s remains one of the most capable smart resistance spot welders on the market, engineered for modern UHSS and advanced steel repairs. With Adaptive Auto Welding, the system continuously monitors material resistance and thickness, automatically adjusting energy delivery to produce consistent, OEM-compliant welds — even through adhesives, coatings, or mild contamination.
Built-in WiFi allows for software updates, training access, and weld log export, while the on-gun display and fingertip controls give technicians real-time feedback at the point of weld. With 12,500 amps of output, 1,240 lbs of squeeze force, liquid-cooled arms with 360° rotation, and 60+ pre-programmed single-sided welding functions, this machine is fully equipped to support high-volume structural and cosmetic repair work.
If you’re looking for a serious, shop-ready spot welder at a fraction of new cost — without sacrificing performance or reliability — this CRTE-refurbished i4s delivers.
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