Compliance
PRAB Candle Filters contain over 10,000 membrane wafers that consistently capture grinding swarf down to 2-3 micron to accommodate recycle and reuse goals.
Health & Safety
Coolant filtration management improves housekeeping and employee safety.
Low Maintenance
Candle filters are self-cleaning with air driven backwash systems to automatically clear filter of dirt and debris eliminating the need for manual cleaning.
Value
Candle filters have a small footprint and are used in coolant filtration for EDM, tungsten carbide tool grinding, honing, and bearing grinding applications with replaceable filter elements that last several years.

Fine particulate oil and coolant filtration for cutting & grinding applications.

Remove fine particulate from spent oil in honing and electronic discharge machining, tungsten carbide tool, and steel ball grinding applications with a PRAB Candle Filter.

PRAB’s Candle Filter improves coolant recycling systems and fluid reclamation by using media in a long cylinder that houses more than 10,000 thin membrane wafers. These membranes effectively and consistently capture grinding swarf down to 1-3 micron and operate reliably under large production runs for improving fluid waste management.

Advantages of the candle filter include:

  • Improves coolant recycling and fluid reclamation
  • Filters operate with virtually no downtime for maintenance
  • Performs reliably under large production runs
  • 10,000 thin membrane wafers capture grinding swarf down to 1-3 micron
  • Self-cleaning air pressure backflush cycle reduces labor costs and increases process efficiency
  • Swarf is purged into an external receptacle for easy collection and recycling in coolant filtration
Applicable Scope:

  • Tungsten carbide tool grinder
  • Electronic discharge machining
  • Honing
  • Ball bearing grinding

Maximum permissible oil viscosity:

  • Grinding – under 45 SUS (100°F, 37.8°C)
  • EDM – under 37 SUS (73°F, 33.8°C)
  • Filter precision: Down to 1-3 micron
Candle Filter Media | Prab.com

Candle Filter Specifications

Model
No. of
Vessels
L
W
H
Dirty
Inlet (h)
Tank Vol
(Gal)
Flow Rate
GPM

CF4T-1R

1

52.8

41.8

60.8

11.8

170

13

CF4T-1

1

52.8

41.8

60.8

11.8

170

18

CFT-1

1

52.8

48

60.8

15.8

210

20

CFT-1S

1

70.9

48

60.8

15.8

285

30

CF7T-1

1

60

60

60.8

15.8

285

42

CF7T-1S

1

60

60

60.8

15.8

285

56

CFT-2

2

70.8

48

60.8

15.8

285

42

CFT-3

3

96

48

60.8

15.8

380

60

CFT-4

4

120

48

60.8

15.8

485

80

 

Chiller Specifications

Model
Chiller
(TON)
Chiller Dimension
L (in) x W (in) x H (in)

CF4T-1R

1

21.6 x 18.9 x 40.9

CF4T-1

2

21.6 x 18.9 x 40.9

CFT-1

2

27.4 x 19.4 x 46.3

CFT-1S

3

23.6 x 36.2 x 49.0

CF7T-1

3

23.6 x 36.2 x 49.0

CF7T-1S

4

43.5 x 27.8 x 55.0

CFT-2

3

23.6 x 36.2 x 49.0

CFT-3

4

43.5 x 27.8 x 55.0

CFT-4

5

43.5 x 27.8 x 55.0

Recommended Grinding Oil

Model
Viscosity
Flash

Crown Cut 850

43 [email protected] 100°F

266°F

Sintogrind TT

45 [email protected] 100°F

320°F

Castrol 488 CF

45 [email protected] 100°F

230°F

Castrol Honilo 980

43 [email protected] 100°F

250°F

Omni-Grind V

37 [email protected] 100°F

239°F

Norpar 15

33 [email protected] 100°F

240°F

Emal-O-Grind 168/3

35 [email protected] 100°F

266°F

 

Recommended EDM Oil

Model
Viscosity
Flash

Castrol SE 180

37 [email protected] 100°F

212°F

US-1

36 [email protected] 70°F

240°F

US-2

32 [email protected] 77°F

165°F

US-3

34 [email protected] 77°F

210°F

Interlyte

37 [email protected] 72°F

220°F

Iono Plus

37 [email protected] 77°F

225°F

Commonwealth 259T

37 [email protected] 72°F

259°F

Commonwealth 244

7 [email protected] 72°F

244°F

PRAB completes comprehensive sample testing to establish an accurate understanding of the unique characteristics of your mixed solution and its industrial applications. This test determines the correct centrifuge system design and capacity to optimizes the filtration process within your facility.

To receive a free test contact us today at (800) 968-7722.

Guardian Coolant Recycling Systems | Prab.com
To discuss your custom application

The PRAB Guardian™ Coolant Recycling System removes tramp oils and suspended solids from contaminated coolant, controls bacteria and can adjust fluid concentration for fluid recovery. Typical ROI is 6-9 months. Enter your details below to calculate system payback for your application:


Prab Machining ROI Calculator

Improve machining productivity at the source by filtering fluids with a single, integrated Guardian system.

  • Productivity

  • Coolant Savings

  • Extended Tool Life

  • Machining ROI

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Prab Grinding ROI Calculator

Improve machining productivity at the source by filtering fluids with a single, integrated Guardian system.

  • Productivity

  • Coolant Savings

  • Extended Tool Life

  • Grinding ROI

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per hour

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