PLMNL0232 REV. H Effective Date: 01/14/19
54
FiberCUT
®
2D Operation Manual
8 Appendix A
– Coolant Specifications
The cooling manifolds are designed to be operated on either a closed-loop cooling system or facility tap
water. For either type of system, the requirements in the table below must be met.
Minimum Flow Rate
1.5 liter/minute @ 2 BAR minimum
Inlet Pressure
5.0 Bar (72.5 psi) Max
Inlet Temperature
≥room temperature / >dew point
Hardness (Equivalent to CaCO
3
)
<250mg/liter
pH
6 to 8
Particulate Size
<200 microns in diameter
See the manufacturer’s specifications for information on cooling the fiber
9 Appendix B
– Assist Gas Specifications
Impurities in the assist gas such as hydrocarbons (THC) and moisture (H
2
O) can damage optics, cause
power fluctuations and result in inconsistent cuts. See the table below for recommended assist gas
specifications.
Impurities can also be picked up in the supply lines. Non-metallic materials can allow oxygen and moisture to
permeate the system and can be a source of dust and hydrocarbons. Stainless steel lines and fittings are
recommended. Use filters that remove particles down to .01 microns and purifiers that guard against oil or
water from getting into the optical system.
Regulators with a stainless steel diaphragm are recommended. Industrial regulators can aspirate air and the
neoprene diaphragm can be a source of hydrocarbons.
10 Appendix C
– Beam Delivery Purging
The beam delivery system must be purged with clean, dry air {specification to meet or exceed ISO
8573.1:2001 Class 2.2.1};
Solids
<100,000 particles per cubic meter of 0.1-0.5 µm size, <1000 particles per
cubic meter of 0.5-1.0 µm and <10 particles per cubic meter of 1-5 µm;
Water
dew point <-40º C;
Oil
<0.1 mg
per cubic meter. A self-regenerating desiccant air dryer filter unit (PLKIT0188) is available as an option from
Laser Mechanisms.
An inlet pressure of 0.5
– 0.7 Bar (7-10 psi) produces 15 – 20 mBar at the internal purge pressure sensor.
11 Appendix D
– Nozzle Cooling and Air Blast Specifications
The nozzle cooling and air blast systems must be supplied with clean, dry air {specification to meet or exceed
ISO 8573.1:2001 Class 2.4.2};
Solids
<100,000 particles per cubic meter of 0.1-0.5 µm size, <1000 particles
per cubic meter of 0.5-1.0 µm and <10 particles per cubic meter of 1-5 µm;
Water
dew point <+3º C;
Oil
<0.1
mg per cubic meter.
Inlet Pressure: 2.0
– 3.5 Bar (30.0 – 50.0 psi)
GAS
PURITY
MAX H
2
O ppm
MAX THC ppm
Oxygen
99.8%
<5 ppm
<1 ppm
Nitrogen
99.998%
<5 ppm
<1 ppm
Argon
99.998%
<5 ppm
<1 ppm
Helium
99.998%
<5 ppm
<1 ppm