Most quotes for fleet washing equipment are wrong on the first pass, not because the supplier is careless but because the buyer sent an incomplete brief. "We need a steam cleaner for twelve vans" tells a manufacturer almost nothing about what the machine has to survive. A useful brief is a short document you can reuse with every supplier, and the more specific it is, the more comparable the answers become. The sections below are what to put in that document, and why each one changes the equipment you are quoted.
1. Vehicle mix, dimensions and how many per day
Start with the fleet itself. List every body style: panel vans, refrigerated box trucks, articulated buses, rigid tippers, crew cabs. Give the tallest and longest vehicle in the fleet, because height decides whether the operator can reach a roof rail from the ground or needs an extension. Then give the real throughput: vehicles per day, per shift, and how that number changes between a normal week and the month-end push. A fleet that washes four vehicles a day and a depot that turns thirty through a single gate need different machines, and a supplier who never asks the second question is sizing for the easy case.
2. What actually has to come off
"Dirty" is not a specification. Say what the soil is: road film and traffic grime, diesel soot around the rear of the vehicle, grease and lapping dust at the wheel ends, mud packed into chassis rails and the underside of a tipper body, or salt crust in winter. Soil type decides whether hot water alone is enough or whether high-temperature steam under pressure does the work. The published parameters for the Fixed Steam Cleaning Machine PowerDe HW02 — 160° steam at 0.8 MPa with 6 kW of heating power — are what you should be asking every supplier to state for their own machine, at the wand rather than in the tank. Put the soil list in writing and ask each supplier which of the listed soils their machine removes without a second manual scrub.
3. Where the washing happens, and what the site can supply
This is the section that most often kills an otherwise good machine. Describe the washing position in plain terms: an indoor garage bay with a floor drain, an outdoor yard with a hard standing, or a narrow space between racking. Then give the three utilities. Power: is a 220 V supply available at that point, and can the board carry 6 kW while other equipment is running? Water: is there a tap within hose reach, and what fitting — the HW02 takes a 4-point internal-tooth joint (1/2 inch)? Drainage: where does the fat-, oil- and grit-laden run-off go, and does your site permit discharge there? A fixed 220V steam cleaning machine measures roughly 1,200 × 800 × 1,200 mm including handles, so also state where it will physically stand when not in use.
If the fleet is washed in more than one place, or in a yard with no fixed supply, say so in the brief and ask to be quoted on a driving style steam cleaner instead. Battery-driven mobile units from the PowerDe cleaning equipment range carry their own water and move between bays, which suits sites where the washing point changes with the shift. Be explicit about which option you want tested and why, and the comparison becomes a fair one.
4. What is inside the wash area that could be damaged
Ask the opposite question of the one most buyers ask. Instead of "what can this clean?", put a list of fragile items in the brief and ask what must not be sprayed: air-intake trims, electrics under a step panel, bed-liner edges, decals and reflective safety markings, bearings behind a wheel cover, and any sensor housing on a modern van. A supplier willing to name the limits tells you more about the machine than a brochure will. Ask the same for the operator: what protective equipment is expected, and what stand-off distance the manufacturer recommends near paint and glass.
5. Staffing, shift pattern and who does the training
State how many people will wash, whether washing is a dedicated role or something drivers do themselves at the end of a run, and whether shifts overlap. This drives whether one machine is enough or the depot needs a second unit and a rotation. Then put your training requirement in the brief: ask for a written operating procedure per surface, ask who delivers the induction, and ask for the trial to be run by your own drivers rather than the supplier's demonstrator. A machine that only the demonstrator can use well is not the machine you are buying.
6. Downtime, spares and who answers the phone
A depot with no standby machine loses its wash schedule the day a heater fails. Put your downtime limit in the brief — how many hours the site can run without washing — and ask for response and spare-parts terms in writing against that number. Also ask what the machine needs to keep working: consumables, filter changes, and whether the water quality at your site (hard or soft) changes the service interval. These costs belong in the comparison, not only the purchase price.
7. Compliance and record-keeping
If your fleet runs into food distribution, abattoirs, farms or building sites with controlled access, washing records are part of the job. Say so in the brief and ask what documentation the supplier provides: a stated cleaning procedure, confirmation of what the machine does and does not achieve, and a format your supervisors can sign off per vehicle. If the fleet operates in cold weather and washing happens outdoors, mention it — ambient temperature changes how long a machine holds its working temperature and whether the crew can finish the round before dark.
Put the same brief to every supplier
Send the identical document to each supplier, insist on the same items back, and the quotes become comparable line by line: nozzle temperature and pressure, tank volume, heating power, supply voltage, footprint, water inlet fitting, run-off handling, service response, and the list of surfaces excluded. If two answers differ, the brief tells you exactly where they differ and why.
One point worth stating plainly, because honesty here saves an argument later: the published product page for the HW02 describes vehicle exterior cleaning, interior vacuuming and disinfection, and engine-compartment cleaning. It does not present every fleet scenario — buses, tippers, refrigerated bodies — as a documented application. If your fleet falls outside what the listing covers, include the exact vehicle photos and the soil description in the brief and ask the supplier to confirm in writing which commercial steam cleaning equipment configuration fits, or to design one. Where a standard unit does not match your yard, the customised equipment route is the correct next step rather than forcing a machine into a job it was not built for.
