Portable hydrogen-oxygen welding and cutting machine compared with other types at home and abroad has the following characteristics:
1. Wide applicable range: applicable for the power supply of more than 220V.
2. Wide use range: the maximum thickness of cutting steel plate can reach 50MM (e.g. YQY-220/1000type). The cutting edge is smooth; the welding seam for welding steel plate is level.
3. Convenient operation: this machine has automatic control and can be conveniently used relying on the familiarity with the acetylene technology.
4. Apparent economic benefits: low cost (compared with traditional acetylene, the cost is lowered by over 80%), electricity saving (the electricity utility rate reaches over 95%).
5. Excellent working continuity: this machine does not need any addictive but just common water (especially the distilled water or boiled water after deposition) and can work continuously for a long time in normal situations.
6. Safety and reliability: this machine has automatic protection. The temperature is controlled automatically. It is equipped with fourth class anti-backfire device and two anti-explosion devices to ensure the operating safety and reliability.
7. Small volume, light weight, convenient movement. Especially applicable for frequently moving welding and cutting operation.

YQY-220/1000II
Oxy-hydrogen welding & cutting machine
Rated voltage: AC220Rated power: 3.8kw
Rated volume of produced gas : 1000 liter/hour
Working pressure : 0.08~0.20 Mpa
Blaze temperature : 2800~3000 a??
melting point of iron: 1535 a??
boiling point of iron: 2750 a??
Incision thickness: a??50mm
weld thickness : a??3mm
Consumed water volume : 600gram/hour
Working temperature of electro-bath : a??80 a??
Ignition model : bright light ignition
Working time : continuum work
Working circumstance temperature : -25~ +45 a??
Net size of product : 96cm x 45cm x 54cm
Net weight : 56kg

for your understanding its principium , please try to read following chemistry reaction
Electrolyze
2H2O ======= 2H2 + O2
Emblaze
2H2 + O2 ====== 2H2O + calorie