Industrial Mold Water Heater: Selection Guide & Technical Specifications
An industrial mold water heater is a water-based mold temperature control unit designed to heat and circulate water through a mold circuit, maintaining precise processing temperatures.
In injection molding, thermal stability directly impacts cycle efficiency and part quality. Heating capacity, water flow, pump pressure, cooling response, and dynamic temperature feedback work together to ensure uniform heat transfer throughout the mold.
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Dual Circuit Mold Water HeaterA Dual Circuit Mold Water Heater provides two independently controlled water circulation circuits for injection molds that require different temperature conditions in separate mold zones. Each circuit features its own temperatureview more
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Closed Loop Water Mold HeaterA closed loop water mold heater is an industrial temperature control system designed to circulate heated water continuously through mold channels. This maintains a stable and repeatable thermal environment during injection moldingview more
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High Pressure Water Mold ControllerHigh Pressure Water Mold Controllers regulate mold temperature by circulating pressurized water through the mold circuit. The system integrates heating, pressurized circulation, cooling, temperature sensing, and automatic control into aview more
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Direct Cooling Mold Water HeaterA Direct Cooling Mold Water Heater is an advanced closed-loop temperature control system designed to heat, circulate, and actively cool water for industrial injection molding applications. Unlike traditional heating-only units, this systemview more
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Water Type Mold Temperature ControllerWater Type Mold Temperature Controllers circulate heated or cooled water through mold channels to maintain precise thermal conditions during industrial production. They are widely used for plastic injection molding and other processesview more
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Industrial Mold Water Circulation HeaterAn Industrial Mold Water Circulation Heater is an integrated thermal control system designed to heat, cool, and circulate water through mold channels to maintain precise mold temperatures during production.view more
Technical Specifications
Review these essential parameters together when evaluating a water mold temperature controller:
|
Parameter |
What Buyers Should Check |
Technical Standard / Guideline |
|
Temperature Range |
Required operating temperature of the mold |
Standard: Up to 90 deg C / Pressurized: Up to 120 deg C - 180 deg C |
|
Heating Power |
Thermal capacity and required heat-up speed |
Calculated based on total mold weight (kg) and target Delta T |
|
Temperature Control |
Stability and control accuracy |
Microprocessor PID control (+/-0.1 deg C to +/-0.5 deg C) |
|
Pump Flow Rate |
Water volume circulating through the mold |
Measured in L/min under continuous operation |
|
Pump Head |
Dynamic pressure to overcome circuit resistance |
Dynamic pressure rated in bar or mH2O |
|
Cooling Capacity |
Thermal removal rate during production |
Direct injection or indirect heat exchanger options (kW) |
|
Compliance & Safety |
Electrical and pressure equipment standards |
CE (LVD/EMC), PED 2014/68/EU, ISO 9001 |
|
Water Circuit |
Internal piping, manifolds, and fittings |
Stainless steel or corrosion-resistant brass |
|
Inlet / Outlet Size |
Connection sizing and quick-coupling types |
BSP or NPT thread sizes (1/2", 3/4", 1") |
How an Industrial Mold Water Heater Works
The unit operates within a closed-loop water circulation system:
Water Entry
Process water fills the internal temperature control circuit.
Heating Cycle
Electric heating elements raise the water temperature toward the setpoint.
Circulation
The high-pressure pump drives conditioned water through the mold channels.
Heat Transfer
Thermal energy transfers evenly between the circulating water and the mold cavities.
PID Regulation
Sensors measure the return water temperature and the PID controller continuously adjusts the heating output.
Cooling Response
When process friction generates excess heat, a cooling circuit opens to remove heat and restore thermal equilibrium.
5-Step Engineering Selection Guide
Verify Required Process Temperature: Standard atmospheric water units operate up to 90 deg C. High-temperature pressurized water systems reach 120 deg C to 180 deg C. If your process exceeds 180 deg C, evaluate an oil-based temperature controller instead.
Calculate Thermal Load: Base heating power (kW) on total mold weight, material thermal properties, starting ambient temperature, and target heat-up time.
Evaluate Pump Flow Rate and Head Pressure: Ensure the pump provides both adequate volumetric flow (L/min) and sufficient head pressure (bar) to overcome circuit friction caused by long, narrow, or complex mold cooling channels.
Confirm Cooling Demand: Match the unit's cooling method (direct vs. indirect) and cooling capacity to the heat removal required during continuous high-speed molding.
Inspect Water Quality & Site Power: Use treated, softened, or deionized water to eliminate scale buildup on heating elements and internal pipe walls. Verify that site voltage, frequency, and phase match the unit's electrical specifications.

Quality Assurance & Compliance
International Certifications
CE Declaration of Conformity, UL-marked electrical components, and ISO 9001 certified manufacturing.
Factory Acceptance Test (FAT) Reports
Hydrostatic leak testing, pump curve performance verification, and full-load temperature stability records.
Technical Documentation
Complete electrical schematics, operating manuals, and recommended spare parts lists.
FAQ
We're well-known as one of the leading industrial mold water heater manufacturers and suppliers in China. If you're going to wholesale high quality industrial mold water heater for sale, welcome to get quotation from our factory. For price consultation, contact us.

