Beijing Reci Laser Technology Co., Ltd
User Guide for Single Module Fiber Laser
18
(2)Just as the figure 3.6, the QBH must be connected in the water way first, and
then the processing head. Do not reverse or divide water in order to avoid
cooling capacity lacked.
Figure 3.6 the connection of water way between QBH and processing head
3.3.2
Requirement of the cooling system
The requirement of the cooling system is on display in the table below:
Table 3.1 the requirement of the cooling system for the series fiber laser
Item
Unit
1000W
1500W
2000W
3000W
Refrigerating
capacity
For the laser machine
kW
>2.5
>4
>5.5
>8
For QBH
>0.5
Water flow
With load
For the laser machine
L/min
>15
>20
>25
>35
For QBH
1.5~2.5(with load)
Pump lift of the
cooler
For the laser machine
m
≥35
≥45
For QBH
≥20
Max. water pressure
For the laser machine
Bar
8
For QBH
6
Water temperature
For the laser machine
℃
25 (28 when it is summer)
For QBH
Room temperature (No condensation)
Diameter of the pipe
For the laser machine
mm
Φ12 (outer diameter) Φ20(Inner diameter)
For QBH
Φ6(Outer diameter)-Φ4(Inner diameter)
