Pressure Filters

Cyclotron's pressure filters, model CTPR, are fully automatic self-cleaning systems that can remove particles down from water soluble coolants with flow rates between 60 and 120 gpm. Sub-micron filtration is achievable. During the cleaning cycle, coolant and fines continually discharge into the main reservoir allowing the manufacturing process to remain uninterrupted. Minimal maintenance is required as the system is fully automatic; no operator is needed to monitor its activity thereby allowing staff to focus on other mission critical processes.

Standard components include centrifugal pumps sized to the application, receiver tanks, clean coolant tanks, and both pneumatic and electrical controls for automatic operation.

Additional options
  • Extra pumps for high pressure clean coolant
  • Magnetic separator pre-filters
  • Refrigeration equipment
  • PLC controls
  • Lift stations
  • Special filter media
  • Centerless grinding
  • Cylindrical grinding
  • Blanchard grinding
  • Surface grinding
  • Central coolant filter for multiple grinders
  • Roll grinders
  • Creepfeed grinding

How It Works

Our pressure filter is a pressurized horizontal bed automatic media system designed to process high flow rates of coolants using minimal floor space. Ultra-high filtration performance is achieved by pumping the contaminated coolant through the media and the solids accumulate to build a filter cake. This enables the filter to accomplish extremely fine filtration levels. The discharged filter cake is dewatered and dried by pressurized air. It is then automatically indexed, separated and deposited into a container for disposal or recycling. The resulting clean coolant enables optimum performance and finish of the machining process.

A. Filter cycle
  • A section of media (1) is sealed in the pressure chamber (2)
  • Dirty coolant is pumped from the tank by the filter pump (3) into the pressure chamber where it is forced under pressure through the media.
  • Contaminants remain on the media and are utilized as a filter cake to achieve finer filtration. The clean coolant is discharged through the outlet line (4).
B. Air blow down cycle
  • The pressure in the chamber increases as the porosity of the filter cake decreases.
  • At a preset pressure or time interval, the pump (3) is stopped. The fluid valve (5) closes, shutting off the dirty coolant supply.
  • The air valve (6) opens, allowing air to force remaining coolant through the filter cake.
C. Index cycle
  • An adjustable timer closes the air valve (6) and the chamber doors (7) open.
  • A drive roller (8) pulls the media and cake out of the chamber.
  • The filter cake is separated and removed by a scraper blade (9) and the spent media transfers to a rewinder (10) for easy disposal.
  • The cake is discharged into a cart (11) for easy disposal or recycling.
  • When fresh media is drawn into the pressure chamber, the chamber doors (7) close and the filter cycle starts again. The length of all the cycles can be adjusted to fit the specific application.