The Mercury Ultra DC-19-1500 is a 19-inch, 1500 RPM corded high-speed floor burnisher built around a 1.5 HP DC-rectified motor. The DC motor eliminates the burn-out, low-voltage stalling, and start-up torque spikes that retire AC burnishers in long buildings on long extension cords. The all-metal chassis adds the down-weight that gets the pad in contact with the finish without operator effort, and the 19-inch apron handles either 19- or 20-inch high-speed burnishing pads. Backed by a 5-year warranty on the motor and chassis.
Best for
- Supermarkets, big-box retail, and warehouses 1500 RPM brings nightly burnish-shine on long aisles without the slow-burnish RPM penalty.
- School, hospital, and commercial corridor work DC motor handles voltage drop on 100-foot extension cords without thermal trip.
- Burnish maintenance programs 1500 RPM is the standard maintenance speed for VCT and resilient flooring with film-forming finish.
- Corded shift work no battery to charge, no propane to fill; corded power covers the whole shift.
Specifications
- Pad size: 19 inches (accepts 19- or 20-inch high-speed burnishing pads)
- Motor: 1.5 HP DC-rectified
- Speed: 1500 RPM
- Chassis: all-metal
- Handle: fully adjustable 48-inch
- Operating wheels: 6-inch non-marking
- Transport wheels: 4-inch separate
- Safety: enhanced interlock switch, non-conductive dual triggers
- Bumper: non-marking full-wrap on the 19-inch apron
- Warranty: 5 years on motor and chassis
Frequently Asked Questions
What is the difference between a floor machine and a burnisher?
Floor machines run 175 to 300 RPM and use chemistry to clean, strip, scrub, or polish. Burnishers run 1000 to 2500 RPM and use heat (generated by pad-to-floor friction) to flow and re-level film-forming floor finish into a high-gloss shine. Same operator job, two different machines.
Why DC rectified and not AC?
DC motors do not stall on low voltage and do not spike a startup torque load that nuisance-trips circuit breakers. On long extension cords (and burnishers typically run far from the panel), in old buildings with marginal wiring, and on continuous shifts, the DC motor is more reliable than the equivalent AC machine.
Is 1500 RPM the right speed?
For commercial maintenance burnishing of VCT, vinyl, and most resilient finishes, 1500 RPM is the workhorse speed it generates enough heat to flow the finish without scorching or burning the pad. Lower-RPM machines (1000 to 1200) are entry-tier; higher-RPM machines (2000 to 2500) are premium maintenance for thick film systems.
What pad does it use?
A 19- or 20-inch high-speed burnishing pad. Beige and natural-fiber pads are the maintenance standard; white pads are gentler for thin finishes; tan and aqua pads are for high-gloss finishes. Avoid red or blue pads (scrubbing-speed pads) at 1500 RPM.
How is the down-weight set?
On the DC-19-1500 the pad pressure comes from the all-metal chassis weight (set by Mercury to industry-standard burnisher down-pressure). Some premium burnishers add adjustable weighting; the DC-19-1500 keeps it simple with fixed factory weight.
Discount Cleaning Products is an authorized Mercury dealer with US-based customer service. Burnishing pads, pad drivers, and replacement parts in stock.
