Characteristics of Resin and Mold Temperature Control: Brushless Motor for Cooling Pump Drive

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CMH Series

last updated：Oct 11, 2026

CLUW Inc.

Explanation of temperature management for molds using hard and soft resins and press technology. Brushless motor (CMH) optimal for pump drive in mold temperature control units.

The temperature control design required for injection molding molds varies significantly depending on the type of resin being poured. For "hard resins" such as glass fiber reinforced resin and super engineering plastics, it is necessary to set the mold temperature higher to ensure fluidity, requiring a strong heating cycle using heaters or thermal oil. In special resin pressing processes (stamping), reliable mold temperature control directly impacts the quality of the molded product. Conversely, "soft resins" like TPU must be sufficiently cooled and solidified within the mold to avoid deformation during demolding. Therefore, in addition to improving release properties with Teflon coatings on the mold, the ability of the "mold temperature control unit (chiller)" to efficiently circulate cooling water and effectively remove heat is crucial. Our "brushless motors (CMH series)" are widely used to drive the water and oil circulation pumps of mold temperature control units, supporting precise temperature management of molds tailored to these resin characteristics.

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basic information

■ Key Points of Mold Design and Temperature Control Based on Resin Characteristics (Rigid and Soft) - Measures for Rigid Resins: Gas vent design to prevent gas generation due to high-temperature filling, and a thermal medium oil circulation circuit to maintain uniform mold temperature during molding. - Measures for Soft Resins: Textured processing to prevent sticking of molded products. Optimal placement of reliable cooling water circuits (baffle plates and spiral water pipes) to prevent deformation. ■ Features of Brushless Motors (CMH Series) for Temperature Control Units - Continuous Operation and Energy Saving: By adopting high-efficiency DC brushless motors (CMH) for the pumps of temperature control units that operate 24 hours, significant power consumption reduction and low heat generation of the motors themselves are achieved. - Variable Speed Control: The optimal cooling water and medium oil amounts can be freely controlled through linear adjustments of the rotation speed, according to the type of resin (rigid or soft) and the thermal load of multiple products. - Complete Domestic Inspection: We conduct complete domestic inspections from prototypes and small lots to ensure reliable quality.

Price information

By leveraging our unique global procurement network (world-class ODM products), we significantly reduce the development and implementation costs of pumps. Even with small-scale production of several dozen units, we offer price advantages comparable to mass production, minimizing initial investment and inventory risks for companies.

Delivery Time

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Applications/Examples of results

【Adoption Results of Mold Temperature Control and Peripheral Equipment for Resin Molding】 - Mold temperature control units (water-cooled and oil-cooled) that maintain optimal temperatures for both hard and soft resins, driven by media circulation pumps (CMH series). - Energy-saving drive sources for pumps in hydraulic units and cooling water units around thermoplastic resin press processing machines. - Smooth continuous low-speed drive components of cooling conveyors that transport products removed after molding while cooling them. 【Our Motor Lineup】 - Brushless motors for temperature control unit pumps and conveyor drives (CMH series). - AC servo motors for extraction robots and precision positioning (CMS series). - Wheel-type geared motors for transporting heavy molds in AGVs (WGM series).

Detailed information

Manufacturing Site 1
Manufacturing Site 2
Automatic winding machine 1
Automatic winding machine 2
Final assembly
Abnormal sound inspection
Pre-shipment inspection
2D design
3D design

Line up（7）

Model number	overview
CMH42 Series	(Maximum output 20W to 50W)
CMH57 Series	(Maximum output 30W to 150W)
CMH86 Series	(Maximum output 90W to 750W)
CMH110 Series	(Maximum output 800W to 2000W)
CMH130 series	(Maximum output 2500W to 4500W)
CMH180 Series	(Maximum output 5000W to 10,000W)
The entire series	Each model can be combined with a dedicated planetary gear head (square/round type, reduction ratio 1/3 to 1/1000) and an electromagnetic brake.