Ecotool liester, associate of leister process technologies, switzerland, has newly introduced an economical weldy range of hot air thermoplastic welding and tarpaulin welding guns. Models are available with display system, which enables users to select programs with set value for temperature and airflow. Also, the operator can program these values himself within set range of programs. The temperature is electronically; stepless controlled from 80ºc to 650ºc and hot air blow is adjustable from 200 to 600 ltr/min. The hot-air blower supplies hot air through the nozzles, which is directed to the plastic parts to be welded together. The hot air stream can be adjusted, as finely as necessary for welding of various thicknesses of plastic materials. A selection of 7 different standard size nozzles is available. Typical applications of hot air blower are bending/shrinking/welding of plastics and thermoplastic materials; polymerization in glass fibres, hot-air welding for roofing membranes made of pvc, ecb, epdm, cspe; butt-welding of polyethylene/pvc pipes, etc.
