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MACHINE DESCRIPTION 

The cutting machines are rectifiers adopting the most advanced inverter technology, which can apply in 
plasma cutting system of using pressing air. 

The  development  of  inverter  cutting  equipment  benefits  from  the  development  of  the  inverter  power 
supply theory and components. Inverter cutting machine LGK 100IJ. Inverter current firstly commutates 
the working voltage of 50/60 Hz to Direct Current. (DC). Then inverter cutting power source utilizes high-
power  component  IGBT  to  transfer  50/60Hz  frequency  up  to  15KHz,  then  reduces  the  voltage  and 
commutates, and exports high-power voltage via PWM technology, resulting in the great reduce of the 
main transformer’s weight and volume and the efficiency increasing by 30%. Arc initiation system adopts 
HF surging theory. It is easy for arc initiation and has function for early feeding air and shutting air and its 
characteristics are arc stable, reliable, portable, and power saving and no electromagnetic noise, high 
speed of cutting, the glabrous shear-out and without polish.   

Plasma Cutting Machine series can product the stronger, the more concentrated and the more stable arc. 
The arc is pressed fiercely by the quickly flowing air and the temperature can be up to 10000-15000 
centigrade degree. That forms the electrolyte estate and then form strong plasma arc. It has the functions 
of  arc  initiation  current,  arc  stop  current,  cutting  current,  basic  value  current,  current  ascending  time, 
current descending time, gas delay time, continuous adjustment. What’s more, pulse frequency and pulse 
duty can also be adjusted independently. It has the characteristics of automatic control of arc initiation, 
arc stop and stable arc, which make the best result for shape and inner quality of the cutting surface. Its 
exclusive design is especially suitable for bicycle industry. 

Compared with the others cutting machine, the cutting machine series are using the advanced electron 
circuit to supply the quick power and control it. Moreover, they have top-ranking cutting operation and the 
extremely high transfer efficiency.   

The  cutting  machine  series  can  easily  design  into  different  cutting  power,  and  the  output  current  is 
constant  and  adjustable as  well  as  excellent  operation  performance.  In  common  situation  its  transfer 
efficiency is above 85%. 

The  machine  is  used  widely;  it  is  easier  to  design  into  cutting  machine  with  different  dynamic 
characteristics. And it can cut stainless steel, carbon steel, copper and other color metal, and also can 
be used for traditional electric cutting.   

Thanks for purchasing our products and hope for your precious advice. We will be dedicated to produce 
the best products and offer the best service. 

 

WARNING

 

             

The machine is mainly used in industry. It will produce radio wave, so the worker should 
make fully preparation for protection. 

 

 

 

Summary of Contents for LGK 100IJ

Page 1: ...3 LGK 100IJ CUTTING MACHINE USER MANUAL...

Page 2: ...rt or property lose if it is not followed The words after this sign means there is potential risk which may cause equipment fault or break if it is not followed Version Version YF TAE 0099 A0 Released...

Page 3: ...L PARAMETERS TABLE 12 PANELFUNCTION INSTRUCTION 13 INSTALLATION INSTRUCTION 14 INSTALLATION INSTRUCTION 15 NOTES OR PREVENTIVE MEASURES 16 QUESTIONS TO BE RUN INTO DURING CUTTING 17 MAINTENANCE 18 NOT...

Page 4: ...cause choke Spark and hot workpiece after cutting may cause fire Bad connected cable may cause fire Incompletion connection of workpiece side circuit may cause fire Never cut on the case of tinder st...

Page 5: ...s below to avoid electric shock Keep away from any electric parts Earth the machine and workpiece by professional personnel Cut off the power before installation or checking and restart 5 minutes late...

Page 6: ...en operating on trunks boilers cabins etc Please accept the supervisor s inspection when operating in narrow space Air the room and wear breathe preventive facilities Never operate in degrease washing...

Page 7: ...checking the wire feeding is normal or not or the shooting wire may stab your eyes and face Keep your eyes face or other naked parts away from the end of torch when feeding the wire manually or pressi...

Page 8: ...cemaker or audiphone f Equipments for adjustment and measurement g Anti disturb capability of other used equipments Users should ensure these equipments and the environment are compatible which may ne...

Page 9: ...rm strong plasma arc It has the functions of arc initiation current arc stop current cutting current basic value current current ascending time current descending time gas delay time continuous adjust...

Page 10: ...Hz 50 60 Rate input current A 23 1 21 1 19 9 No load voltage V 276 301 319 Current Range A 23 100 Rate output voltage V 89 2 120 Duty cycle 60 Efficiency 85 No load loss W 80 Power factor 0 93 Insula...

Page 11: ...er heat abnormal indicator 3 over current Abnormal indicator 4 Current adjustment knob 5 Positive output terminal 6 Pilot arc output terminal 7 Torch switch socket 8 Gas electricity system output The...

Page 12: ...e joint with hoop or other ways in case of gas leaking Dry gas with suitable pressure and flow should be supplied If your air source cannot meet above requirements you should consider using sole compr...

Page 13: ...lve turn up the pressure adjusting knob Turn the pressure to rated value meter inside shows Kgf cm2 and then put down the knob means increasing pressure _ means decreasing pressure 6 Scale of the mete...

Page 14: ...is adequately ventilated It is important for the performance and the longevity of the machine 2 Do not over load The operator should remember to watch the max duty current Response to the selected du...

Page 15: ...d input cable is too long C Output current is not up to the rated value When power voltage departs from the rated value it will make the output current not matched with rated value when voltage is low...

Page 16: ...If scale and loose are found please give a good polish to them then connect them again tightly 4 Avoid water and steam enter into inter machine if they enter into machine please dry inter machine the...

Page 17: ...ontrol wire of gun broken or switch broken 3 Control circuit is broken Contact factory Abnormal indicator is lit meter is normal fan is normal 1 High pressure device is broken 2 IGBT is broken 3 Recti...

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