Question 1

What is an injection molding chiller?

Accepted Answer

An injection molding chiller is a refrigeration system that supplies precisely temperature-controlled water to cool plastic molds during the injection molding process. It reduces cycle time, prevents warping and surface defects, and improves dimensional accuracy. Geson injection molding chillers range from 2RT to 200RT in air cooled and water cooled configurations.

Question 2

What size chiller do I need for injection molding?

Accepted Answer

Use the formula: Q (kW) = W x C x delta-T x S divided by 860. W = plastic processed per hour in kg/h, C = specific heat of material, delta-T = melt temp minus mold temp, S = safety factor 1.5 to 2.0. As a rule of thumb, 1 ton of cooling covers approximately 35 to 65 lbs per hour of plastic depending on material.

Question 3

What chilled water temperature is recommended for injection molding?

Accepted Answer

The standard chilled water temperature for injection mold cooling is 10 to 15 degrees Celsius. For precision molds requiring tight dimensional tolerances, 7 to 10 degrees Celsius may be used. Hydraulic oil cooling runs on a separate circuit at 25 to 30 degrees Celsius.

Question 4

Air cooled or water cooled chiller for injection molding — which is better?

Accepted Answer

For individual machine cooling from 2RT to 50RT, air cooled scroll chillers are most popular — lower cost, simple installation, no cooling tower needed. For central systems above 50RT or hot climates like the Middle East and Southeast Asia, water cooled screw chillers deliver better energy efficiency and stable output regardless of outdoor temperature.

Question 5

Can one chiller cool multiple injection molding machines?

Accepted Answer

Yes. A central chilled water system with one larger water cooled screw chiller and a distribution manifold is the most efficient solution for factories with multiple machines. Geson supplies complete central systems including chiller, pumps, buffer tank, distribution manifold, and control panel.

Question 6

What is the lead time for a Geson injection molding chiller?

Accepted Answer

Standard air cooled scroll chillers ship in 30 working days. Larger water cooled screw chiller systems or skid packages ship in 45 working days. All units are factory pressure-tested and run-tested before shipment. Worldwide delivery by sea in wooden case packaging with transportation insurance included.

Question 7

How much does an injection molding chiller cost?

Accepted Answer

Pricing depends on cooling capacity, configuration (air cooled or water cooled), and included components such as pump and tank. Geson offers factory-direct pricing from China with CE and ISO 9001 certification. Contact Geson with your required capacity to receive a formal quotation within 24 hours.

Application of Industrial Chillers in Machinery industry

What are the requirements for the cooling capacity coefficient of performance (COP) of the chiller?

Chemical chiller