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Auto Top Up


Intelligent, level-sensing top up unit which, when combined with a SmartMix and distribution pipework, automatically controls the correct coolant level in a machine sump.

Benefits include:

  • Automatically maintains a correct fluid level
  • Reduces coolant consumption / costs
  • Stabilises coolant concentration
  • Improves coolant performance
  • Increases productivity

For more information call us on
01423 522911


  • Works with any mixing system, including ETL Fluid Expert’s SmartMix
  • Compact design with easy installation
  • Can be powered directly from machine tool @ 24vdc – no need for a separate mains supply
  • Fail safe operation – valve always closed if air/ power lost



24VDC (or 230V with adapter) Adapter sold separately

Current Draw:

0.3 AMPS (24VDC)


H: 222 W: 141 L: 136 mm


Inlet 3/4" BSP G (F) - Outlet 3/4" BSP G (M) Mounting Thread

Download an ATU Datasheet.

Contact us now for pricing in your workshop.

Download Datasheet


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Central coolant recycling station capable of treating 500 litres of used coolant every 3 to 4 hours.

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For more information on the ATU.

Contact us now for pricing in your workshop.

Tell me more about ATU

Need help

Call one of our coolant specialists now.
Call 01423 511 911.

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