Clarke Ultra Speed 20 Battery Walk-Behind Floor Burnisher — 20" Pad, 2000 RPM, 36V 200 Ah with Onboard Charger (Model 56383523)
- FREIGHTFree freight to any US address, included at checkout. How it works →
- US EQUIPMENT SALESSold to US customers by Janitori, based in Canada
- DOCUMENTED DETAILSUse the specifications and documents published for this model
- FREE FREIGHTAny US address, no order minimum — included at checkout
- EQUIPMENT SUPPORTCall 1-888-287-3732, 24/7
Product description
The Ultra Speed 20 is the cordless burnisher for facilities that need a wet-look gloss without dragging 100 feet of cord through occupied space. A 2.5 hp pad motor spins a 20-inch pad at 2000 rpm on the floor, restoring shine on finished VCT at up to 24000 square feet an hour, with a realistic working rate near 17600. Self-regulating pad pressure holds a consistent load instead of relying on the operator, and a double-pivot pad driver lets the pad follow floor contours so the gloss comes out even rather than streaked. A stiffened frame and nine vibration isolators make it noticeably smoother to run than typical burnishers, and passive dust control with a two-port bag keeps airborne dust down in schools, hospitals and retail. It runs on 36V with 200 Ah batteries and a standard onboard charger, and tips back for pad changes without tools.
- 20-inch (50.8 cm) burnishing path driven by a 2.5 hp (1.9 kW) pad motor at 2000 rpm measured on the floor.
- Polishing rate of 24000 sq ft/hr maximum and 17600 sq ft/hr practical — real throughput numbers, not just a top-end figure.
- Self-regulating pad pressure up to 30 lb (13 kg) holds a consistent load so gloss does not vary with operator technique.
- Double-pivot pad driver keeps the pad in alignment and lets it follow floor contours for an even, consistent shine.
- Class-leading passive dust control with a two-port disposal bag — no separate vacuum or dust skirt kit needed.
- 36 V system, three 12 V 200 Ah batteries, with a standard onboard 36 V / 25 A charger (85-265 V input).
- Stiffened frame plus nine vibration isolators for a markedly smoother, lower-fatigue burnishing feel.
- 68 dB(A) operation, quiet enough to burnish during occupied hours in hospitals, schools and offices.
- Tip-back design with palm switches, reverse button and an angle-activated safety switch for fast, safe pad changes.
- Low-battery protection and non-traction drive; 551 lb (250 kg) without batteries, 23 in (58 cm) wide for doorway access.
Receiving — do not sign clean
- Count the pieces against the bill of lading before the driver leaves. A machine, its batteries and its accessories can ship as separate items.
- Walk the pallet. Check the shrink-wrap, the crate corners and the machine itself — forks go through crates more often than anyone admits.
- Photograph any damage before you sign. Once the driver has your signature the photographs are worth much less.
- Write the damage on the delivery receipt. A clean signature on a damaged pallet is what makes a freight claim hard. Then call 1-888-287-3732 the same day.
Complete your setup
This machine runs on Janitori commercial-grade chemistry — machine and solution from one supplier, one reorder. Stock the essentials with your unit.
Why buy from Janitori
Commercial & fleet orders
Gyms, schools, facilities, property managers, government. Tell us your purchasing process, quantity and timeline. Ask about PO or net-terms eligibility; approval is not guaranteed.
Questions, answered
What training is required to run this machine?
Follow the manufacturer operator manual and your workplace's required training and safety procedures before use.
How does freight delivery actually work?
Delivery method and services depend on the order and destination. Confirm the shipment plan before ordering. Full guide: how freight delivery works.
What happens if it arrives damaged?
Note the damage on the delivery receipt, take photos, and contact us promptly so we can confirm the process applicable to that shipment.
Where can I find warranty information?
Use the warranty document published for this exact model, when present, and contact us with questions before ordering.
Can my organization request purchase-order terms?
Use the commercial quote form to describe your PO or net-terms process. We will confirm whether the requested process can be supported.
Which pads and cleaning products should I use?
Use only verified product references and the manufacturer's compatibility requirements. Contact the equipment desk with your floor type and application before substituting a product.
Product specifications
- Power
- 36 V / (3) 12 V batteries
- Batteries
- 200 Ah wet (234 Ah AGM optional)
- Onboard charger
- 36 V / 25 A DC / 85-265 V / 45-65 Hz AC (standard)
- Pad motor
- 2.5 hp (1.9 kW)
- Pad pressure
- Self-regulating up to 30 lb (13 kg)
- Polishing rate (practical)
- 17600 sq ft/hr (5365 sq m/hr)
- Drive
- Non-traction (20T model adds power traction)
- Dust control
- Passive two-port disposal bag
- Sound level
- 68 dB(A)
- Dimensions (L x W x H)
- 50 x 23 x 41.25 in (127 x 58 x 105 cm)
- Weight without batteries
- 551 lb (250 kg)
- Drive wheels
- 1.62 in x 8 in (4 cm x 20 cm)
Outfitting a facility or a fleet?
Multi-unit pricing, chemistry programs, and parts stocking plans. One supplier for the machine and everything it consumes.
