Mold Temperature Controllers

A mold temperature controller circulates heated or cooled water or oil through the channels of an injection mold to hold the mold at a set temperature, helping control cooling conditions and support consistent cycle time and part quality. This category lists water-type and oil-type mold temperature controllers from Taiwanese auxiliary equipment builders, together with related temperature control products. Use the guide below to specify a unit before you request quotations.

What Is a Mold Temperature Controller?

A mold temperature controller (also written mould temperature controller, and also searched as a thermolator) is an auxiliary unit with a pump, a heater, a cooling valve or heat exchanger connected to chilled or tower water, and a controller that regulates heating and cooling against a temperature sensor. Because it both heats and cools, it is different from a chiller, which only removes heat and supplies cold water; the controller regulates the circulating fluid temperature, and its cooling source may be chilled water or cooling-tower water depending on the system. It is also different from a hot runner temperature controller, which powers the heaters inside a hot runner manifold and does not circulate heat-transfer fluid through the mold.

Water or Oil?

Water units are the usual choice for most thermoplastics. Non-pressurized units run to around 90 °C; above water's atmospheric boiling point a pressurized water unit is required, with models rated to roughly 140–180 °C. Confirm the rated operating temperature and pressure of the proposed model.

Oil units cover higher temperatures, commonly 200 °C and above, at the cost of lower heat transfer efficiency, oil handling and more maintenance.

Dual-circuit units control two mold halves or zones independently from one cabinet when core and cavity need different temperatures.

How to Choose a Mold Temperature Controller

Size heating and cooling capacity from the mold, not the machine. Heating capacity in kW sets how fast the mold reaches temperature after a changeover; cooling capacity sets whether the unit can hold temperature once the melt delivers heat every cycle. Ask the supplier to size against mold weight, resin, shot weight and cycle time.

Check pump flow and pressure against your channel layout. A unit that reaches the set temperature but cannot push enough flow through a long, small-diameter circuit shows a large inlet-to-outlet difference and uneven parts. Flow rate and pump head belong on the specification next to temperature.

Match the medium and model to the conditions you will actually run. Select from the required operating temperature and pressure, heat-transfer performance and maintenance requirements, and confirm the proposed model is rated for those conditions.

Ask about control and connectivity. Flow measurement, leak-stop and mold-drain functions, and an interface to the molding machine or a monitoring system, matter as much as the heater if you plan to track process data.

Mold Temperature Controller Manufacturers on PRM-Taiwan

SHINI PLASTICS TECHNOLOGIES, INC. lists the STM series oil heaters in standard and high-temperature models, the STM-W water heaters, the STM-WF large-flow water heaters, the STM-PW high-temperature water heaters and the STM-EB budget series, within a wider auxiliary equipment range. Request a quote from SHINI

YANN BANG ELECTRICAL MACHINERY CO., LTD., founded in 1974, lists the YBMI and YBMD mold temperature controllers, a high-degree water type, a compact water type and the YMWP unit that combines a chiller and a mold temperature controller in one cabinet, within a wider auxiliary range. Request a quote from YANN BANG

A-MAX TECHNOLOGY CORP lists its AO and AW series oil and water temperature controllers alongside industrial chillers and other auxiliary equipment, for buyers sourcing several types of auxiliary equipment from one supplier. Request a quote from A-MAX

Hot Runner Controllers Are a Different Product

Several products in this category come from ARICO TECHNOLOGY CO., LTD. and MOLDPOWER CO., LTD.: hot runner temperature controllers regulate manifold and nozzle heaters, valve gate controllers operate valve pins, and solid state relays are switching components. These products serve different functions from water- or oil-circulating mold temperature controllers. Many molds need both a hot runner controller and a mold temperature controller, and they are specified separately.

Frequently Asked Questions

What is the difference between a mold temperature controller and a chiller?

A mold temperature controller both heats and cools to hold a set temperature; a chiller only removes heat and supplies cold water. The controller's cooling source may be chilled water or cooling-tower water, depending on the system.

How do I size a mold temperature controller?

From heating capacity in kW for heat-up time, cooling capacity for holding temperature under load, and pump flow and pressure for your channel layout. Ask the supplier to size it from mold weight, resin, shot weight and cycle time rather than from machine tonnage.

Water or oil mold temperature controller: which should I buy?

Non-pressurized water units run to around 90 °C, pressurized water units to roughly 140–180 °C, and oil units cover higher temperatures or cases where water pressure is impractical. Choose from the operating temperature and pressure the mold will actually run.

Does PRM-Taiwan sell mold temperature controllers directly?

No. PRM-Taiwan is a B2B marketplace where each manufacturer runs its own showroom and answers inquiries directly. Use the request-a-quote link beside any supplier above, or send one set of requirements and it is routed to the suppliers whose range matches.

Tell PRM-Taiwan the resin, mold and cycle you run and we will match you with suppliers whose range fits. → Send your requirements to PRM-Taiwan