Main features: 1, the unique solid-state high-frequency semiconductor variable flow control technology. 2, the full power output, with time control and split a variety of models to meet all your requirements. 3, special lightweight, only 12-60KG. 4, simple operation, a few minutes to learn. 5, special safety equipment without ten thousand volts high voltage, eliminating the danger of high voltage. 6. Energy efficient than conventional tube high frequency can power two-thirds. 7, the installation is simple, just press the power and water can be used, a few minutes to complete. 8, 24 hours of continuous use. 9, can be adjusted automatically controlled heating, power and time incubation process, help to improve the quality of heating and heating repetitive, simplified workers to operate. ● Applications: 1, diamond tools, carbide cutting tools welding. 2, metal steel - steel, steel - copper, copper - copper equivalent metal or high-frequency welding dissimilar metals. 3, hardening, annealing, quenching, tempering and other heat treatment of metallic materials. 4, metal forging, hot forming. 5, powder metallurgy sintering and metal smelting. 6, the other to be a place for metal heating. Specifications Maximum output power KW maximum oscillation power KVA maximum oscillation frequency KHz output oscillating current (A) Input Voltage (V) Automatic control (s) Weight KG 4KW series SP-04C common type 4KVA 100-250 100-400 single-phase 220V 12 SP-04 automatic control type three sections 0.1-9.9 15KW series SP-15 Normal 15KVA 30-100 200-600 single-phase 220V 18 SP-15 A three-stage automatic control type 1-99 20 SP-15B split 25