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Introduction  

 

The cutting machine applies the advanced technology of inversion. Its 
principle is making the 50/60Hz line frequency inverted to high frequency 
(more than 100 kHz) with the V-MOSFET high power binistor, and then 
stepping down and rectifying to attain high power DC source through the 
pulse width modulation (PWM) technology. Thus the weight and size of the 
transformer is greatly decreased and the efficiency is improved up 30%. The 
principle of high frequency oscillation (HFO) is applied in the arc striking 
system and makes it easy to arcing. Furthermore, the gas pre-flow and 
post-flow function is available. It is stable, reliable, portable, energy saving, 
noiseless, fast cutting speed, smooth scarfing and free of burnishing. 

The cutting machine can be widely used. It can cut stainless steel, low carbon 
steel, copper and other non-ferrous metals. The conversion efficiency of the 
whole machine is over 85%. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание LGK-40

Страница 1: ...LGK 40 Instruction Manual M s WARPP ENGINEERS PVT LTD B 1005 WESTERN EDGE II NEAR METRO MALL OFF WESTERN EXPRESS HIGHWAY BORIVALI E MUMBAI 400 066 Tel 91 22 28542272 73 74 Fax 91 22 28542275 Email sal...

Страница 2: ...size of the transformer is greatly decreased and the efficiency is improved up 30 The principle of high frequency oscillation HFO is applied in the arc striking system and makes it easy to arcing Furt...

Страница 3: ...CONTENTS 1 MAJOR TECHNICAL PARAMETERS 1 2 INSTALLATION 2 3 OPERATION 3 4 PRECAUTIONS 4 5 MAINTENANCE 6 6 TROUBLESHOOTING 7...

Страница 4: ...30 Current adjustable range A 10 40 Rated output voltage V 100 Rated duty cycle 60 Efficiency 85 Power factor cos 0 93 Insulation level B Casing protection level IP21 Arcing mode contacted Recommended...

Страница 5: ...components inside the machine burnt 2 The power line should be well connected to the power switch or the connector and prevented from oxidization If possible check if the power voltage lies in the ra...

Страница 6: ...ention the machine should be turned down each time the spray nozzle or the electrode is replaced or examined 2 3 Examination 1 Whether the cutting machine is grounded according to the standard 2 Wheth...

Страница 7: ...louver for ventilation on both sides and on the front of the machine The place that the welding machine is installed should at least 0 3m from the surrounding objects The ventilation condition should...

Страница 8: ...nd press it again After the arc is successfully stricken move the cutting torch at a uniform speed to conduct normal cutting The speed varies according to the thickness of the plate If the sparks upwe...

Страница 9: ...vented from contacting with sharp things so as to avoid breakage 8 Dismount the nozzle casing the nozzle the electrode and the pilot arc line if the pilot arc line is not removed the cutting torch wil...

Страница 10: ...s If the control button of the cutting torch is pressed the electromagnetic valve acts without the sound of high frequency arc striking discharging and the red LED inside the machine shines 1 The MOS...

Страница 11: ......

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