Mini chiller

A mini chiller prepares the cooling water for a single piece of equipment or a small line on its own, such as a laser, a CNC machine, a laboratory instrument or a printing press. The casing contains the circulation pump, the control unit, a stainless steel buffer tank and an expansion vessel. Charged with refrigerant and tested at the factory, the unit can be started on the day the electrical and water connections are completed.

Where is it used?

Equipment that needs water at a constant temperature is the typical application: laser cutting, marking and welding machines, CNC spindles, medical imaging equipment such as MRI and CT scanners, laboratories and test rooms, printing machines and small plastic injection moulding lines. Where connecting to a central cooling system is difficult or costly, a separate unit for each machine is more practical.

What we need for selection

• The machine's heat load (kW), the required water temperature and the flow rate
• Temperature accuracy: for processes that need ±0.5 °C, a model with an inverter compressor is chosen
• Installation location (indoors or outdoors) and the outdoor air conditions of the region
• Whether water or glycol below 0 °C is needed; the glycol version goes down to −5 °C
• Power supply: single-phase or three-phase

With this information the unit is selected for the machine's load and quoted. The table below gives the typical range for this class; the technical documents of the selected model are shared at the quotation stage.