TMC-120W vs TMC-180W: Comparing Model Specs
Compare the TMC-120W and TMC-180W by heater power, maximum flow, and pressure, then match those published ratings to your mold-circuit requirements.

The choice between the TMC-120W and TMC-180W water mold temperature controller comes down to heat load and flow demand: the TMC-120W delivers 12 kW of heating with a 60 L/min maximum flow, while the TMC-180W raises heating capacity to 18 kW and maximum flow to 165 L/min for larger or multi-cavity molds. Both units run on clean water, reach a maximum temperature of 120°C, and share the same upper temperature limit, so pump performance and heater power are what actually separate them.
What are the key specification differences between the two models?
The TMC-120W is listed with a 12 kW heater, 0.75 kW pump, 60 L/min maximum flow, and 0.4 MPa maximum pressure. The TMC-180W is listed with an 18 kW heater, 1.5 kW pump, 165 L/min maximum flow, and 0.25 MPa maximum pressure. Maximum flow and maximum pressure are distinct ratings; confirm the expected operating point for your circuit.
| Specification | TMC-120W | TMC-180W |
|---|---|---|
| Heater power | 12 kW | 18 kW |
| Pump power | 0.75 kW | 1.5 kW |
| Maximum flow | 60 L/min | 165 L/min |
| Maximum pressure | 0.4 MPa | 0.25 MPa |
| Heat transfer medium | Clean water | Clean water |
| Maximum temperature | 120°C | 120°C |
Which mold sizes and applications suit the TMC-120W?

The TMC-120W is listed with a 12 kW heater, 0.75 kW pump, and 60 L/min maximum flow. Those specifications do not establish suitability for a cavity count or mold size; compare them with the documented heat load and circuit requirements.
When does the TMC-180W make more sense?
The TMC-180W has the higher listed heater and maximum-flow ratings, while the TMC-120W has the higher listed maximum pressure. Compare each value with the documented process and circuit requirements, then obtain supplier confirmation for the intended configuration.
How should I calculate my heating and flow requirements?
Provide the supplier with the mold details, target operating temperature, channel arrangement, utilities, and required startup conditions. Ask for a model recommendation tied to those inputs and the published ratings rather than inferring suitability from mold size or model number.
What should I include in a quote request?
To get comparable quotes on either model, state the mold temperature controller model number or your calculated heater and flow requirements, your target temperature (up to 120°C for both units), your available power supply, and any space or connection constraints at the machine. Ask each supplier to confirm pump power, maximum flow, and maximum pressure in writing, because these vary between models even within the same series. Requesting these four data points keeps every quote on a like-for-like basis and prevents surprises at commissioning.
Which model should I shortlist first?
The TMC-120W and TMC-180W have different published flow and pressure ratings. Use those values as a comparison point, then confirm the circuit operating point and model suitability with the supplier before ordering.
Frequently asked questions
Do both models use the same heat transfer medium?
Yes. Both the TMC-120W and TMC-180W operate on clean water and share a maximum temperature of 120°C. For any process requiring temperatures above that limit, a different medium or unit class would be needed, so confirm your setpoint falls within this range before ordering.
Is the TMC-180W higher pressure because it has higher flow?
No. The TMC-180W offers 165 L/min maximum flow but a 0.25 MPa maximum pressure, while the TMC-120W provides 60 L/min at 0.4 MPa. Higher flow and higher pressure are independent pump characteristics, so match the specification that your cooling circuit actually requires.
How much power does each unit need?
The TMC-120W carries a 12 kW heater and a 0.75 kW pump; the TMC-180W carries an 18 kW heater and a 1.5 kW pump. Verify that your facility’s power supply can support the heater load of the model you select, and state your supply voltage in the quote request.
Can one TMC-180W serve several smaller molds?
The TMC-180W lists an 18 kW heater and 165 L/min maximum flow. Whether it can serve multiple circuits depends on the circuit design and operating conditions; ask the supplier to review the combined requirements.
See the Water Type Mold Temperature Controller TMC Series page for the published model specifications.
Last updated: October 30, 2026