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BM111 SERIES 3KW Auto-Focusing Laser Cutting Heads User Manual
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filters which can remove a minimum of 0.01 micron particle to purify.
We recommend customers to use the pressure gauges with stainless steel diaphragm.
Industrial pressure gauges suck in air. Rubber diaphragm produces hydrocarbons by aging or other
factors.
About the nozzle cooling gas, Nitrogen or finely filtered air is recommended. The pressure
should be less than 10 bar. Do not use oxygen as a cooling gas.
Note:
Gas interfaces can not be replaced arbitrarily, especially do not use PTFE TAPE.
Otherwise, the gas path will be blocked, the normal cutting will not be possible and the
laser head parts will be damaged at the same time.
3.3
Connection of Cutting Head Cable
3.3.1
Connection of Cutting Head and Cable
Connect the corresponding connector of cutting head with motor power cable, encoder cable,
sensor cable respectively (as shown in figure 3.3). After the proper length is reserved, the cable is
inserted into the track groove of the machine tool and fixed.
Cutting gas
Purity
Maximum content of
water vapor
Maximum content of
hydrocarbon
oxygen
99.95%
<5 ppm
<1 ppm
nitrogen
99.99%
<5 ppm
<1 ppm
argon
99.998%
<5 ppm
<1 ppm
helium
99.998%
<5 ppm
<1 ppm
Tracheal tube diameter specification
Cutting gas pipe diameter
（
outside diameter
）
10mm
Cooling gas pipe diameter
（
outside diameter
）
8mm
