Clarke® CFP Pro® 20DS Dual Speed Floor Machine, 185/330 RPM

Monday the cafeteria needs a deep scrub. Wednesday the lobby needs a spray buff before the board visits. With a single-speed machine, one of those jobs always feels like a compromise. The Clarke CFP Pro 20DS is a dual speed floor machine with a switch on the motor: 185 RPM for scrubbing and stripping, 330 RPM for spray buffing and polishing. Same 20-inch deck, same 1.5 hp motor, one machine in the closet.

It's built like the rest of the CFP Pro line: all-metal construction, a cast aluminum chassis and an all-steel triple planetary gearbox. The difference is inside, where a DC rectified motor drives both speeds.

The Owner's Insights on the Clarke CFP Pro 20DS

Most facilities I talk to own a low-speed machine and wish it did a bit more on finished floors. The 20DS is the answer when you want that extra speed without buying a burnisher.

The speed switch sits right on the motor, so you flip it with the machine off, the way the manual requires. At 98 lb, it's actually lighter than the single-speed CFP Pro 20HD, and it still sits flat and steady on a stripping pad.

My honest note: 330 RPM is a buffing speed, not a burnishing speed. If you want that wet-look shine every night, you still need a 1,500 RPM machine like the Clarke Ultra Speed Pro 1500. And if your crew only strips and scrubs, the single-speed Clarke CFP Pro 20HD does that job for $823 less. The 20DS is for the crew that does both and has room for one machine.

Why You'll Love the Clarke CFP Pro 20DS

• Two speeds, 185 and 330 RPM. Scrub and strip on low, then spray buff on high, without swapping machines.

• 1.5 hp DC rectified 66-frame motor. Enough torque for a black stripping pad at low speed and steady power at high speed.

• All-steel triple planetary gearbox. The parts that carry the load are steel, so weekly stripping doesn't wear the drive out.

• 65 dB(A) on low, 68 dB(A) on high. About the level of normal conversation, so it works in occupied buildings during the day.

• 50-foot safety-yellow power cord. Up to 50 feet of reach from each outlet, and the bright cord is easy to see and step around.

• 19-inch pad driver included. The universal clutch plate locks it on with a quarter turn, so you're ready for 20-inch pads out of the box.

Which Speed for Which Job?

Low, 185 RPM: stripping old finish, deep scrubbing, scrubbing with a brush and any job where the pad needs torque more than speed. Most single-speed floor buffers run in this range.

High, 330 RPM: spray buffing and polishing a finished floor between full refinishes. The extra speed brings back more gloss than a 175 RPM machine can.

One rule from Clarke's manual: never change speed while the machine is running. Release the triggers, let the pad stop, flip the switch and start again.

Dual Speed Floor Machine or High-Speed Burnisher?

A 330 RPM spray buff restores a scuffed finish. A burnisher at 1,500 RPM or more gives the deep wet-look shine that hallways and retail floors keep between refinishes. If shine is the whole job, a burnisher is the better buy. If you scrub and strip too, the 20DS covers more work with one machine. Our guide on floor buffers vs burnishers goes deeper, and you can compare every option in our floor machines collection.

For chemical-free stripping, grout and corners, look at the Clarke FM40 orbital floor machine, which costs $3,600 more.

Still not sure? Send us your square footage, floor type and how often you strip and buff, or call (855) 601-5678. We'll tell you which machine fits, including when a cheaper one does the job.

The 20DS takes standard 20-inch pads on its 19-inch pad driver. On most pad color charts, black is for stripping, blue or green for scrubbing, and red or white for spray buffing and polishing. Genuine Nilfisk ECO floor pads in 20 inches start at $54.42 for a case of five. Brushes attach with the same quarter-turn clutch plate.

Budget for pads as your main running cost. If the pad driver ever needs replacing, the 20DS uses Clarke part MF-VF022, the 19-inch CFP Pro pad driver, for $145.58. Nilfisk treats pad holders and brushes as wear items, so they're not covered except for manufacturing defects.

Why You Should Consider a Clarke Floor Machine

Clarke is a Nilfisk brand, and the CFP Pro series is its line of all-metal swing machines for schools, offices and facility crews. Nilfisk covers its floor machines for 3 years parts, 3 years labor and 1 year travel through authorized service centers. We're an authorized Clarke retailer, so that warranty is yours from day one.

Which pad goes on this machine? Our floor pad color chart explains what each color does, from white polishing pads to black stripping pads.

Clarke CFP Pro 20DS Specifications

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Found a lower price? Call or message us and we'll beat it. Returns follow our return policy.

Ready when you are: add the 20DS to your cart, or message us first if you'd like a second opinion on which machine fits.