The Comac Scrubber Dryer Buyer's Checklist: 7 Steps Before You Spend a Dollar

Quick note before the checklist: if you searched comac c919 first commercial flight date, you're looking for a different company. That Comac built a plane. The Comac I work with builds floor scrubbers, sweepers, and dust collectors. This article is about the cleaning equipment one.

When I first started managing cleaning equipment budgets, I assumed the lowest quote was always the best choice. Three budget overruns later, I learned about total cost of ownership. That's why this checklist exists. It's the exact process I use before buying any floor scrubber with suction—Comac or otherwise. Seven steps. Do them in order.

If you're only replacing a floor sweeper brush on an existing machine, skip to Step 3. If you own a Makita floor sweeper, Step 3 is especially for you.

Step 1: Define the job before you look at machines

Machine specs are useless if they don't match your floor. Write down your actual operating conditions:

• Floor type and condition: sealed concrete, epoxy, tile, rough asphalt?
• Area to clean per shift in square feet or meters
• Debris type: dust, metal shavings, cardboard bits, oil, standing water?
• Water access and drainage—or lack of either
• Noise and operating hours: can you run it while customers are present?

The usual culprit isn't the machine. It's an assumption like 'should be fine for a warehouse' with no measurement. I've watched a facility buy a 'versatile' scrubber, only to discover nobody had checked how the dirty water would get dumped. That's not a machine problem. That's a five-minute question skipped.

Checkpoint: can you write one sentence that says exactly what the machine must do? For example: 'We need to scrub 20,000 sq ft of sealed concrete, pick up cardboard dust and small scraps, and leave the floor dry enough for forklift traffic by 6 AM.' If you can't write that sentence, you're not ready for a purchase.

One more thing: if a supplier claims 'eco-friendly' or 'green' cleaning, ask for proof. Per FTC Green Guides (ftc.gov), environmental claims like 'recyclable' must be substantiated. If they can't show you the evidence, that claim is a red flag.

Step 2: Compare total cost of ownership, not list price

The list price is the most visible number, but it's not the most important one. In my cost tracking, the purchase price has been less than half of the three-year cost—sometimes closer to a third. The rest comes from consumables, labor, energy, maintenance, and downtime.

When you get quotes, ask for:

• Battery and charger options, including replacement cost
• Replacement brushes and squeegee blades with part numbers and intervals
• Detergent cost per gallon and usage per tank
• Maintenance plan pricing and what it covers
• Warranty exclusions (motors, hoses, wear items?)

I almost went with a cheaper unit once. The quote didn't include battery packs or brush replacements, and the per-year consumable cost pushed it above the 'expensive' Comac scrubber dryer. That's how TCO works. It's basically a trade-off between what you pay now and what you pay later.

Checkpoint: build a simple three-column comparison: purchase price, annual consumables, and 3-year maintenance. If the dealer can't give you the third column, treat that as a red flag.

Step 3: Verify the floor sweeper brush before you order anything

This is the step most people skip—until the machine sits idle waiting for a part. A floor sweeper brush is not a universal item. You need to match:

• Brush width and diameter
• Bristle material: polypropylene, nylon, or abrasive
• Hub style and shaft or mounting pattern
• Part number from the manual, not a photo

I once said 'standard size' to a supplier, and they heard 'the one we stock.' The wrong floor sweeper brush arrived. We lost two weeks, paid return shipping, and still had to pay a restocking fee. It wasn't a Comac machine, but the lesson applies to any model: check the part number before you click buy.

Looking back, I should have opened the manual before calling the supplier. At the time, I thought a brush is a brush. That assumption cost more than the brush itself. If you own a Makita floor sweeper, don't search for a 'compatible Comac brush.' Search for the Makita part number. I've seen buyers pick a cheaper 'compatible' brush and then be surprised it doesn't fit. That's not the brush's fault—it's the lack of verification.

Buy an extra brush now. It's a no-brainer if you need uptime. It's cheaper than the expedite fee you'll pay when the one in service wears down.

Step 4: Test the floor scrubber with suction on your actual floor

A floor scrubber with suction does three things: it lays down solution, scrubs, and vacuums the dirty water back into the tank. That's the theory. The reality depends on floor condition, debris, water hardness, and your crew's habits.

Don't buy on spec. Ask for a demo on your floor, with your debris and your water. If the supplier won't do it, ask to rent the machine for a day. In Q2 2024, we tested a unit before signing. It looked great in the brochure, but it left streaks on sealed concrete under overhead lights. The rep adjusted pressure and solution flow. Still streaked. We bought a different model, and the demo cost us nothing but a few hours.

Also check the basics during the demo:

• Does it pick up the kind of debris you have, or just push it around?
• How easy is it to empty the recovery tank? A 30-second cleaning cycle turns into 15 minutes if the tank design is bad.
• Battery run time in real use—not just the brochure number
• Noise level, especially if you clean during business hours

5 minutes of verification beats 5 days of correction.

This is the prevention-over-cure part: 60 minutes of testing now can save you three days of return logistics later. It's not a slogan. It's how I build every equipment purchase.

Step 5: Confirm service, spare parts, and hidden fees before signing

Warranty is not a service plan. Ask what the warranty actually covers. Wear items—brushes, squeegees, hoses, batteries—are often excluded or prorated. Ask for the response time for service visits and whether the technician can diagnose remotely.

I didn't fully understand the value of a service plan until a $3,000 repair estimate arrived in March 2023. One failure, and suddenly the warranty exclusions mattered. Hidden fees also add up fast. Delivery, setup, training, shipping for returns, minimum orders for consumables. That 'free setup' offer once cost us $450 more in hidden charges (which, honestly, felt excessive). Or rather, the setup itself was free; the follow-up visit wasn't.

Before you sign, get these in writing:

• Service response time and what counts as 'response'
• Parts availability: floor sweeper brush, squeegee blades, filters
• Training for your team: how long, at what cost, and what's included
• A pre-delivery inspection checklist: open the crate, inspect for damage, run it with water before the technician leaves

The pre-delivery inspection is the most important line. If the technician leaves and you sign the delivery receipt, the machine is yours. If you find damage or a missing part after that, you're in a claim conversation, not a return conversation. Prevent it: don't sign until the machine runs.

Step 6: Write your own procurement policy based on lessons learned

After tracking orders and dealing with two expensive mistakes, our procurement policy now requires quotes from at least three vendors for any machine above a set amount. It's not about getting the lowest price. It's about having a baseline so a supplier can't invent their own comparison.

Create a spec sheet and send it to every vendor. Include:

• Voltage, charging time, and battery chemistry
• Scrub path width, brush speed, and pressure
• Water consumption and recovery tank capacity
• Noise level in decibels
• Floor sweeper brush part numbers, not just 'brush included'
• Warranty terms and service response time

Make the purchase order conditional on an acceptance test. Something like: 'Machine must run continuously for 60 minutes, meet the agreed cleanliness standard, and have zero parts failure during the first week.' If it fails, you can reject or require repair at no cost. That's how you turn prevention from a hope into a contract.

Common mistakes and quick notes

If you're in a hurry, here's what tends to go wrong:

• Ordering a floor sweeper brush based on 'looks about right' instead of a part number
• Buying a floor scrubber with suction without testing it on the actual floor
• Ignoring the recovery tank and battery charging until the first shift
• Skipping the pre-delivery inspection because the delivery driver is waiting
• Assuming the supplier's 'standard service' covers everything

Bottom line: the Comac scrubber dryer is a solid machine, and there's a reason so many facilities use them. But 'solid' doesn't mean 'exempt from checking.' The best-value option is the one you've verified—verified job definition, verified TCO, verified brush part number, verified performance on your floor. A 20-minute check can prevent a $1,200 redo. I know because I've paid for the redo more than once.

Oh, and if you did come for the Comac C919 first commercial flight date: May 28, 2023. Now you can tell your team why you were reading about floor scrubbers.