Hot-air Welders

              

One of the major advantages of thermoplastic membranes is their heat weldability. One of the characteristics of thermoplastic is that when heated sufficiently, the material temporarily changes from a solid to a semi-solid state, enabling the sheets or panels to be fused together and return to a solid upon cooling. Thus, a monolithic (continuous) membrane is created.

Sika Sarnafil is the only membrane manufacturer that designs and produces it own hot-air welding machines.  For the most reliable and permanent seam welding, Sika Sarnafil’s authorized applicators use a Sarnamatic hot-air welder.

For smaller, hard to reach areas or for use around details, a hand-held hot-air welder is used.

How hot-air welding works:

Heated air is blown into the seam area, causing the membrane surfaces to melt. A roller and the weight of the machine then presses the two sheets of membrane in the overlap together. As the welder moves away from a given seam location, the membrane quickly cools down to ambient temperature and the heat weld is completed, providing a watertight, permanent bond.  In fact, the welded seam is stronger than the surrounding membrane.

Sarnamatic 661 SpeedWeld – the new dimension in automatic welding

As successor to the well-proven Sarnamatic 641 mc, the Sarnamatic 661 SpeedWeld boasts some extraordinary features. In fact, it sets a whole new standard for reliability, safety, and convenient operation.

Reliable Results
Protection against voltage fluctuations
Error messages displayed as text
Field replaceable parts
Easy to Use
Large easy-to-read display screen
Simple menu operation
Compact and light for easy handling
Clear, easy-to-understand error messages
Welding parameters for different Sarnafil membranes are stored in memory
Versatile
Adjustable nozzle unit for perimeter edge welding
Adaptable to double-weld welding (Sarnafil Express)
Adaptable to Décor Profile welding
Quality Welding
Vertical, free-floating nozzle and pressure wheel that automatically compensate for substrate irregularities
Advanced air trap for crease-free and wrinkle-free seams
Narrow nozzle and pressure wheel provide a consistent weld over a variety of substrates
Customer Support
Service and support are important considerations in your selection of a hot-air welding machine. Sika Sarnafil understands how critical it is that your equipment work correctly
On-site Support
Sika Sarnafil field technicians are available for training and on-site support. The interchangeable parts on the Sarnamatic 661 SpeedWeld also allow your staff to quickly and easily service the welder on-site, minimizing worker downtime
Factory Service
In the event that your Sarnamatic 661 SpeedWeld needs factory service, our Sarnamatic Service Department will provide quick and efficient service. Every Sarnamatic 661 SpeedWeld carries a two year limited warranty, one of the longest in the industry
Customer Support
Service and support are important considerations in your selection of a hot-air welding machine. Sika Sarnafil understands how critical it is that your equipment work correctl
On-site Support
Sika Sarnafil field technicians are available for training and on-site support. The interchangeable parts on the Sarnamatic 661 SpeedWeld also allow your staff to quickly and easily service the welder on-site, minimizing worker downtime
Factory Service
In the event that your Sarnamatic 661 SpeedWeld needs factory service, our Sarnamatic Service Department will provide quick and efficient service. Every Sarnamatic 661 SpeedWeld carries a two year limited warranty, one of the longest in the industry

The Handheld Hot Air Welder

A hand-held hot-air welder is used mainly for seams at details. The Triac welder comes equipped with a 40 mm and a 20 mm wide welding nozzle and a pressure roller. With a digital display of set and actual temperatures, the Triac hand-held welder provides optimum welding results.