Calima Plus

Automatic Hot Air Welder

The light weight Calima roofing welder is easily five times faster than hand welding. Featuring an air dam, seam guide, and 230 or 120 volt models, it is perfect for big or small roofing jobs. The 120V version can be used with 20A household current. It's low profile helps is get under HVAC units and other tight areas. It is perfect for fast edge metal welding, and most importantly, it gets hot.

Includes: Case, Spare Heat Element, Weights, and Adjustment Tools.


Model Number: ZTR-C300

Power: 230V, 2600W, 11.3A, 50/60Hz

Power Option: 120V, 2000W, 1650/60Hz

Welding Speed: 1-39ft/min, 1-12m/min (adjustable)

Air Temp: 68-1150ºF, 20-620ºC (adjustable)

Seam Width: 0.8/1.2/1.5in, 20/30/40mm


Weight: 28lbs, 12.5kg (with weights)

Digital Display: Temperature and Speed

Material: PVC, TPO, Single Ply Roofing Membrane


The Calima Plus Automatic Hot Air Welder, welding under an HVAC ON A 90,000 sq. ft. job.