Some specification as following: High frequency Film structure welding machine (Tensioned Membrane structure): Mainly used for various film structure welding such as construction film structure, ETFE film structure, PTFE film, sun-blind and carport and so on. Machine features Steady frequency: This machine strictly adopts industrial wave band 27.12/40.68 MHz according to the provision of nations “radio interference committee"(CISPR) with steady frequency device and prevent the leak of magnetism, have no interference about the outside environment. Spark restrains system: This machine has high sensitive Spark restraint electro-circuit can check out the imbalance current which can bring spark and cut it off, meanwhile alert the operator. Vibrate current setting: The output can be adjusted by adjuster according to thickness of material and the size of products, which ensure the quality of welding and promote production. Security protection: This machine has security protection system of exceed voltage and electric current Model JL-10G JL-15G Power 10KW 15KW Frequency 27.12MHZ 27.12MHZ Voltage 220v 380v 220v 380v Upper polar plate 30*700mm 30*1000mm electronic tube TOSHIBA TOSHIBA spark tube US5557 US5557 Maxpressure 800KG 1000KG weight 550KG 600KG We can according to your requirements made-to-measure.