Hawk F91-20-01 20-Inch Glide Freedom HD Floor Machine – 1.5 HP, 175 RPM, 10:1 Gear

Hawk F91-20-01 Glide Freedom HD 20-Inch Floor Machine – Floating Head WD at 175 RPM

The Hawk F91-20-01 Glide Freedom HD runs a 1.5 HP dual capacitor motor at 175 RPM through a 10:1 gear ratio with a floating head WD (Wet/Dry, Wheels Down) design that keeps the 20-inch pad in constant contact with uneven floor surfaces. At 115 lbs with the forward-motion control system, the F91 handles commercial scrubbing, stripping, and spray buffing without the lateral operator effort required by conventional pivot-head machines.

F91-20-01 Floating Head System, Gear Drive, and Motor

• Floating head WD design — head pivots independently of the machine body, maintaining pad contact on uneven concrete, pavers, and grouted tile surfaces without operator adjustment.
• Motor: 1.5 HP dual capacitor AC, 66 frame — consistent torque at 175 RPM under stripping and scrubbing pad loads.
• Gear ratio: 10:1 — HD gearbox for standard heavy-duty commercial floor care; XHD (11:1) model (F92-20-01) available for extreme finish buildup.
• Weight: 115 lbs — sufficient pad pressure for stripping and scrubbing on VCT, terrazzo, and concrete.
• Noise: 66 dB, GS42 compliant — operates in occupied schools, hospitals, and office facilities during business hours.
• Cord: 50 ft industrial, 12-3 — covers standard commercial room footprints without an extension cord.

Where the Glide Freedom HD Floating Head Adds Value

Conventional floor machines on uneven surfaces—brick, pavers, textured concrete, and deeply grouted tile—lose pad contact at the high spots and concentrate pressure at the low spots, producing uneven cleaning results. The F91-20-01's floating head WD keeps the pad face parallel to the surface regardless of minor grade changes, distributing pressure evenly across the full 18-inch brush. This eliminates the missed spots and uneven gloss lines that appear after buffing on slightly crowned or wavy VCT installations. Facilities with aging vinyl floors, outdoor pavers, and terrazzo with worn grout joints use the floating head design to achieve consistent results without multiple directional passes to cover the missed sections.

RPM and Pad Selection at 175 RPM for the HD Model

At 175 RPM the F91-20-01 accepts the same stripping, scrubbing, and buffing pads as any 175 RPM machine. The HD 10:1 gear handles standard facility strip-and-refinish cycles effectively. When annual stripping on floors with 8 or more finish coats is required, compare the F91 HD against the F92 XHD (11:1)—the extra gear reduction provides more torque per pad pound-force, reducing passes on thick buildup. For typical commercial floors with 4–6 coats, the F91 HD provides all the torque needed at 175 RPM.

Documents

Hawk F91-20-01 20-Inch Glide Freedom HD Floor Machine – 1.5 HP, 175 RPM, 10:1 Gear Spec Sheet (PDF)