Working principle: 
Molecule occur polarization under the action of high frequency electric field. and put in order according to the direction of electric field, but it will change the direction rapidly under the high frequency electric field to emit heat and weld quickly.

Characteristics:
1) High power head of machine, pressure can be adjusted freely.
2) Stable frequency: it adopts industry wave band: 27.12MHZ, which correspond with the standard of international wave band.
3) It adopts preheating protection system, prolong life of electron tube, improve the economic benefit.
4) NL-5557 high frequency sparking protection system, sensitive. It can protect electron tube, mold and material.
5) Easy operation, high efficiency and good looking for products.