Choosing a commercial scrubbing robot

Every cleaning-robot brochure leads with a big coverage number and a render of a spotless mall. Useful buying decisions come from the boring details underneath. Here's the checklist we use when we spec a machine for a site.

1. Coverage rate — in context

"Up to 1,200 m²/h" is a theoretical maximum in open space. Real throughput drops with obstacles, narrow aisles and tight turns. Ask for the effective rate on a floor like yours, and size from that — not the headline.

2. Navigation

Modern scrubbers use LiDAR and vision to map and avoid obstacles. What matters in practice:

• How it handles a dynamic environment (people, trolleys, pallets appearing mid-run)
• Whether it needs a manual teach run or maps autonomously
• How it recovers when something blocks its path

3. Tank capacity and refill

Clean and dirty water tanks set how long the robot runs before it has to stop. A larger tank means fewer interruptions, but a heavier machine. The best setups auto-return to a dock to drain, refill and recharge without a human — that's what makes an unattended overnight shift possible.

4. Noise

If the robot runs anywhere near guests, residents or staff, decibels matter. A compact unit under 60 dB can clean a hotel lobby overnight; a louder industrial machine can't. Match the noise rating to the environment.

5. Compliance and safety

This is where overseas direct-buys come unstuck. For an autonomous machine to legitimately run on an Australian site you want:

• RCM marking and local electrical compliance
• Appropriate IP rating for wet operation
• Safety certification (CE/FCC/CB and similar) and UN38.3 for the battery
• Obstacle detection and emergency stop that meet the duty of care for a shared floor

6. Service — the part that decides everything

A scrubbing robot is a wet, mechanical machine with brushes, pumps and batteries. It will need parts and service. The single biggest predictor of whether a deployment succeeds isn't the spec — it's whether someone local can fix it quickly when it stops.

The cheapest robot is the most expensive one if it's sitting broken in a cupboard waiting for a part from overseas.

The honest limits

Be wary of any seller who won't tell you what the machine can't do. A scrubber does open hard floor brilliantly. It doesn't do edges, corners, stairs, restrooms or spills — you still want a person for that. The right framing is robot-plus-human, not robot-instead-of-everything.

The short version

• Size from effective coverage, not the headline number
• Check navigation in a realistic, busy environment
• Match tank, noise and IP rating to your site
• Insist on local compliance and warranty
• Buy the service relationship, not just the hardware