Raycus RFL-C Series User Manual page 18

Parameter
Cooling Capability
Minimum Flow
Maximum Pressure
Pipe Outside Diameter
There are additional cooling requirements for the QBH and RFL-QBH head. The head should be
cooled with an independent water circuit. A chiller with double temperature outputs is a good
option, and an individual chiller is also a proper choice. The cooling capability should be higher
than 400W, minimum flow should be 0.5L/min, outside diameter of the pipe should be 6mm, and
the most important, the maximum pressure is 2bar, and de-ionized water must be used.
Water temperature setting:
Summer (ambient temperature higher than 30℃)
Winter (ambient temperature lower than 30℃)
Requirements on Cooling Water:
Purified water should be used. In order to prevent mould growing that may lead to pipe blockage,
we recommend to add alcohol about 10% of the total volume. The cooling system should be
equipped with filter. Check and clean the filter every six months.
If the product is used in an environment that ambient temperature is between -10℃ and 0℃, we
recommend to use 30% alcohol, and replace it every 2 months.
If the product is used in an environment that ambient temperature is below -10℃, you must use
chiller with both heating and cooling functions, and keep it in full-time operation.
Other requirements:
Table 5: Cooling Requirements
200W
Unit 100W
W >400 >800
L/min
Bar
mm
CAUTION:
The water pressure to the QBH and/or RFL-QBH output head must be less
than 2bar, or the head will be damaged. Such damage is not covered by
guarantee.
Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide 100W~750W Ver: 1.0
300W 400W 500W
>1200 >1600 >2000 >2400 >2800 >3000
8
7
10
29±0.5℃;
25±0.5℃
5
600W 700W 750W