Designed, built, and serviced in Sullivan, Ohio since 1985
Two stages, in series

The magnet protects the paper bed

In a steel or cast-iron operation, ferrous fines account for most of the load a paper bed handles. Removing that ferrous fraction at a magnetic separator, which uses no consumable media, reduces how often the fabric advances. Because filter fabric is the paper bed's primary consumable cost, upstream magnetic separation reduces media use and associated operating expense.

Dirty coolant in
Mixed load
Ferrous + non-ferrous + solids
Mixed particulate generated by the machining process.
Stage 01
Magnetic separator
Ferrous fines → drum
98% removed, no consumable media.
Stage 02
Paper bed filter
Non-ferrous + solids → roll-off
Captured on disposable fabric, grade by cloth.
Clean coolant out
To the machine
Returned through the pump
Clean fluid back to the sump.
How each stage works

Ferrous removal followed by fabric filtration

Stage 1

Magnetic separator

01

Rotating magnets attract ferrous particulate from the fluid as it flows through. A scraper blade cleans the discs continuously, so the separator runs without shutting down for cleaning. The ferrous material builds up and slides down a chute into a 55-gallon drum or a portable chip dumpster.

It removes ferrous material one-quarter inch and smaller at 98% efficiency, with no filter media to buy. Taking the iron out early also reduces machine wear and reservoir pump-outs.

98%
Ferrous removal
No media
Nothing to replace
Continuous
No shutdown to clean
View the magnetic separator
Stage 2

Paper bed filter

02

The fluid then passes through disposable fabric on a self-advancing bed. This stage captures non-ferrous particulate, slag, process residue, and general sludge that the magnetic separator does not remove. Filter-cloth selection determines the micron rating.

The bed handles water, emulsion, solution, and oil. Every unit can be built in stainless steel for corrosive liquids, pure water, and food-industry duty.

By cloth
Grade set by fabric
All fluids
Water, emulsion, oil
Self-advancing
No bag to change
View the paper bed filter
Specifications

Seven models, sized to flow

The DMD line includes seven models from DMD 50 through DMD 400. Particle capacity and stainless steel construction are summarized below, with full dimensional drawings available for specification.

DCO combination filter model dimensions
DMD modelDimension D (in)Dimension H (in)
DMD 5049.239.4
DMD 10065.053.1
DMD 15072.861.0
DMD 20090.678.7
DMD 250110.298.4
DMD 300129.9118.1
DMD 400169.3157.5
13–396 GPM
Magnet stage range (MD line, water-based)
13–132 GPM
Bed stage range (gravity paper bed, water-based)
6 × 6 mm
Maximum metallic particle handled
4 × 4 mm
Maximum non-metallic particle handled
Stainless
Optional build for corrosive liquids, pure water, food industry

Filter-cloth selection determines the filtration grade. Higher-capacity configurations are available. D and H are the primary model dimensions; complete dimensional drawings are available for specification. EdjeTech sizes the magnetic and paper-bed stages together using the required flow rate and material mix. Request dimensional drawings

Applications

Machining and industrial process-fluid filtration

The combination filter can serve individual machine tools or process-fluid systems carrying mixed ferrous and non-ferrous solids.

01Turning, grinding, general machiningMetalworking coolant with mixed ferrous and non-ferrous particulate
02Glass fabricationSolids removal from process fluids
03Chemical and dyeingParticulate removal from process fluids
04Food industryStainless build for clean-fluid duty
05Painting and washingParticulate removal ahead of the process
06Water treatmentSolids separation from water and emulsions