TerraScrub A3 Walk-Behind Scrubber: Specs & Use (2026)

The A3 is a compact professional hand-push scrubber built for small and medium areas where a big machine can't maneuver: 530mm brush, 2,200 m²/h theoretical coverage, 50L/55L tanks, 3–4 hours of runtime, and an adjustable brush pressure range that lets one machine handle both delicate floors and heavy soil.

1A3 Specifications

Full details and configuration options are on the A3 product page.

2What Those Numbers Mean in a Real Building

• 2,200 m²/h is a theoretical maximum. In a real retail floor or clinic corridor with turns and obstacles, expect roughly half — about 1,000–1,300 m²/h. That still clears a 1,000 m² floor in under an hour.
• 3–4 hours of runtime suits a morning or evening cleaning block, not a full eight-hour shift. For all-day use you need a charging window in the middle or a second machine.
• 50L/55L tanks mean roughly 1,000–1,200 m² per fill at mid-range flow — usually one fill for a small site, two for a larger one.
• 155 kg is light enough for one operator to push and steer, but heavy enough that ramps, lifts, and mezzanine loading deserve a check.
• 72 dB allows daytime cleaning in occupied retail or healthcare spaces without shutting areas down.

3Where the A3 Fits

4Four Features That Matter Day to Day

• Adjustable brush pressure, 10–30 kg. The single most useful feature on this machine: 10kg for polished or delicate floors, up to 30kg for heavy soil, without buying a second scrubber.
• Corrosion-resistant water path. One-piece cast-aluminum water-sucking components resist aggressive chemicals, which is what kills ordinary machines in facilities that degrease daily.
• Tool-free brush change. The triangle-buckle brush disc lets an operator swap brushes in under two minutes with no tools — the difference between a five-minute task and a maintenance call.
• Simple control panel. The brush-card layout is learnable in about five minutes, so new or temporary staff can be productive on their first shift.

5Running the A3: Routine vs Deep Clean

6Keeping the A3 Running

• Every shift: empty and rinse the recovery tank, wipe the squeegee, charge the battery fully.
• Weekly: deep clean both tanks and check the squeegee edge for nicks — the routine is in our tank cleaning guide.
• Battery care: charge after every use and never store the machine discharged — runtime only holds up if the pack is looked after.
• Monthly: inspect the brush, hoses, and filters; replace worn items before they affect results.

7When to Choose Something Else

• Large open floors over ~3,000 m² cleaned daily: step up to a wider walk-behind or a ride-on — the A3's 530mm path means more passes than a site that size deserves.
• Very tight or cluttered areas: a narrower compact model may fit where the A3's 550mm body is marginal.
• Multi-floor buildings with lifts: a mini ride-on may suit better if the machine has to travel between floors regularly.
• Full-shift cleaning: 3–4 hours of runtime means the A3 is a block-cleaning machine, not a full-day one.

Where the A3 sits against the rest of the range is covered in our walk-behind scrubber comparison.

Common Questions

The A3 is the machine you buy when the floor is too big for a mop and too tight for a ride-on: 530mm brush, 50L/55L tanks, 3–4 hours of runtime, and adjustable pressure from 10 to 30 kg. Buy it for small and medium areas with obstacles; step up to a wider or ride-on machine when the floor area or shift length outgrows it.

Contact TerraScrub

Email: Donnie@terrascrubx.com

WhatsApp: +86 166 0187 1755

No. 600, Jiye Road, Sheshan Town, Songjiang District, Shanghai, China