Mercury Floor Machines DC-19-1500 Burnisher – 19", 1500 RPM, 84 lbs

Mercury DC-19-1500: 19" Burnisher at 1500 RPM for Tight-Space Gloss Work

The DC-19-1500 runs a 19" pad at 1500 RPM — the same speed as the DC-21-1500 but in a narrower footprint. That 2" difference in pad width makes this machine more practical in restroom corridors, elevator lobbies, and narrow aisles where a 21" burnisher requires additional maneuvering. Machine weight stays at 84 lbs, maintaining consistent pad pressure regardless of the smaller pad diameter.

DC-19-1500 Motor and Pad Specifications

• Pad size: 19" — fits corridors and doorway approaches where the 21" model does not
• Speed: 1500 RPM — mid-range between the DC-19-1170 (1170 RPM) and DC-19-2000 (2000 RPM)
• Machine weight: 84 lbs — same as the 21" model; higher pad pressure per square inch due to smaller pad area
• Motor type: D.C. direct-current drive — consistent torque at rated speed under full load
• Compatible pads: White, tan, or natural fiber burnishing pads; stripping or scrubbing pads are not compatible at this speed

Where the 19" 1500 RPM Burnisher Fits in a Facility

A 19" burnisher at 1500 RPM covers two practical needs. First, it handles areas the 21" model cannot reach efficiently — narrow corridors, restroom entries, and service hallways where the wider machine requires partial passes and repositioning. Second, it serves as the dedicated machine for smaller floor zones in facilities that run a 21" burnisher in open areas. Running matched-speed machines across zones means uniform gloss level throughout the building without switching pads or adjusting operator technique. The 1500 RPM speed is appropriate for VCT, single-coat urethane hardwood, and light-traffic luxury vinyl where the 2000 RPM model carries too much heat risk.

Pad Pressure and Heat Cycle at 1500 RPM on a 19" Machine

At 84 lbs on a 19" pad, the DC-19-1500 delivers slightly higher pounds-per-square-inch than the 21" model — the same weight concentrated over a smaller area. This increases the rate of gloss development per pass, meaning white pads in particular will reach peak gloss faster than they would on the larger machine. Tan and natural fiber pads remain preferred for heat-sensitive finishes. As with all burnishers in this speed range, keep the machine moving — stopping mid-pass causes the finish to overheat at the pad center. Allow 2–3 inches of overlap on each return pass to prevent visible demarcation lines at the edge of the burnishing path.