Hypertherm LH2100 - Manual (Page 15)

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SPECIFICATIONS
2-2 LH2125/LH2100 Laser Head Instruction Manual
Cutting head
This manual provides the information needed to install, operate, and maintain the LH2125 and LH2100 laser cutting
heads. The LH2125/2100 is designed to process material with a CO
2
laser cutting system. Lens position is controlled
by a servo motor for precise and repeatable location of the focal position, relative to the cutting nozzle. The LH2100
accepts 2" (50.8 mm) diameter optics with focal lengths of 7.5" and 10" (190.5 mm and 254 mm).The LH2125 accepts
2" (50.8 mm) diameter optics with focal lengths of 7.5", 10" and 12.5" (190.5 mm, 254 mm and 317.5 mm).
Requirements
Electrical:
Motor ..................................................................................................................System dependent
Encoder..............................................................................................................System dependent
Sensor ................................................................................................................9 – 36 VDC, 2 Watts
Capacitive interface.........................................................................................9 – 36 VDC, 5 Watts
Purge gas: air or nitrogen
Gas quality ........................................................................................................Clean, dry and oil-free
Flow rate ............................................................................................................2 liters/minute
The customer must provide a regulated gas supply capable of delivering at a pressure of 1.4 bar (20 psig) to the laser
head.
Cutting gas: air, oxygen, nitrogen
Maximum system pressure ............................................................................27.5 bar (400 psi)*
Coolant requirements:
Coolant type......................................................................................................Water
Water purity.......................................................................................................200 k
Ω
– cm
Flow rate ............................................................................................................9 liters/hour (2.4 gallons/hour)
Pressure ............................................................................................................4.8 bar (70 psi) maximum
Note: Use purified water as coolant in order to prevent corrosion in the coolant system. The hardness
of the water should be between 0.2 and 8.5 ppm. If using a conductivity meter to measure
water purity, the recommended level is between 0.5 and 5 µ Siemens/cm at 25° C (77° F).
*Maximum pressure is determined by the individual lens used. Check with the lens manufacturer for pressure rating.
Hypertherm lenses are rated for 20.7 bar (300 psi).