1. laser tube water pump
2. laser machine accessory
3. water pump
4. cooling laser tube
5. water protection function

laser tube water pump

Cooling tube, water protection: 

for small machine series, such as TR-5030, TR-5030H, TR-6040 and TR-6040H, water pump is enough for the cooling:

For big items: TR-9060 and TR-1390, etc.

 Water chiller is better for better cooling:

You can choose according to your situation!