Just like the required cooling capacity, the routing of the cooling water in the spindle also depends on the spindle model and the associated machine. As a rule, the coolant enters the spindle housing via a nozzle. Depending on the model, HYFRA chillers supply the coolant at a pressure of 2.2 bar to 4.0 bar (32 psi to 58 psi). For many applications, the water must be provided with additives such as corrosion protection agents. More Information