A quotation for cleaning oily equipment usually arrives as a machine price. The buyer compares kilowatts, tank volume and pressure, then asks whether the unit can remove the oil stain on a reducer housing, a conveyor frame or a machine base. That question cannot be answered from a datasheet. Two plants requesting the same model can get opposite results because their stains are not the same stain, their access is not the same access, and their definition of "clean" is not the same definition. Before you ask a supplier for a price, put the following information on one page. It is the difference between a machine that fits your work and a machine that sits in a corner of the workshop.
1. What the stain actually is
"Oil" is not one substance on a factory floor, and the supplier cannot size a process without knowing which one you have. Separate the items you are dealing with and write them down individually:
- Cutting fluid, way oil and hydraulic oil — thin films that spread over painted and machined surfaces.
- Grease from bearings, guideways and gears, often mixed with dust and metal wear particles.
- Baked-on oil, which has been heated and re-heated until it no longer behaves like liquid oil.
- Coolant mist residue that coats a machine enclosure as a wide, even film rather than a drip.
- Loose solids sitting on top of the oil: chips, grinding grit, welding spatter, packaging dust.
Each line matters for a different reason. A thin fresh film is mostly a wetting and heat problem. A baked-on film is a dwell-time problem, because heat needs time to soften it. Loose solids must be removed before any thermal step, otherwise the operator is pushing grit across the surface instead of lifting the oil off it. If you cannot name the residue, take a photograph of the worst area and describe the source of the oil in one sentence — "leak from the gearbox sight glass", "coolant mist from the machining centre", "grease splatter from the chain drive". A supplier who knows the source can usually predict the residue.
2. Whether the machine is cleaned in place or taken away
This single decision changes the equipment class more than any specification. Cleaning in place means the equipment stays where it is, so there is no wash bay, no drain, no immersion bath and no rinse tank. Water volume becomes the binding constraint, because run-off has to go somewhere and the floor has to be walkable again. It also means electrical parts, bearings, breathers and panels are all in the working area and have to be treated as off-limits or protected.
Removing the part to a fixed point is the opposite situation: you gain a drainage point, a water supply and mains power, and you can work on a fixture. For in-place work with limited water, high-temperature industrial steam cleaning equipment is usually the option worth testing first, because most of the cleaning comes from heat rather than from a volume of liquid. Where the job is fixed at one bay, a fixed steam cleaning machine plumbed to a water supply is a simpler setup than a mobile unit. Where the equipment cannot be moved and the distance from the water point is long, a battery-driven hand-pushed or driving-style unit decides whether the crew can actually reach the work.
3. Utilities available at the point of use
Most equipment selection failures are utility failures. Before the enquiry, walk to the place where cleaning will actually happen and record:
| Power | Supply voltage available at that point, socket type, cable run length, and whether a permanent connection is allowed. |
| Water | Is there a tap at the point of use? Is it tap water, and how hard is that supply? Hard feed water changes boiler and element maintenance intervals. |
| Drainage and run-off | Where the displaced oil and water go, and whether oily run-off has to be contained for your site's effluent rules. |
| Drying time | How long the equipment may stay out of production, and whether it can be left open to dry or must be dried and restarted inside a shift. |
| Access | Door widths, ceiling height, whether the cleaning point is indoors, and how far the machine has to be moved between jobs. |
Publishing an accurate utility list before the enquiry also protects you. Published figures on equipment pages describe the machine, not your installation, and wording between listings on this site is not always consistent. Confirm supply voltage, heating power, tank capacity and battery configuration for the exact model with the manufacturer before ordering, and confirm that your application is covered.
4. A written definition of "clean enough"
Ask for a quotation without stating your acceptance standard and you will be sold on the machine's numbers instead of on your outcome. Decide first what the cleaned equipment has to support:
- Safe handling — an operator can touch the frame and guards without oil transfer.
- Inspection — cracks, leaks and worn fittings become visible on the housing surfaces.
- Coating or repair — the surface must be free of loose oil before paint, sealant or adhesive is applied.
- Hygiene or audit requirements — the visible film has to be gone, not just reduced.
Then state how it will be checked: a white-cloth wipe on a defined area, a visual comparison against a reference photograph, or a simple inspection sign-off by the maintenance lead. Ask the supplier to run that check during the trial, on your own equipment. A demonstration on a clean test panel tells you nothing about your baked-on grease.
5. The surfaces that must not be cleaned like steel
Industrial equipment is a mix of materials, and heat behaves differently on each of them. In your enquiry, list the sensitive items in the area you want cleaned: hydraulic hoses and their covers, cable jackets, nameplates and labels, wiper seals and gasket edges, painted or powder-coated panels that are already chipping, electrical enclosures and junction boxes, motors with fan openings, and any component with a vent or breather. Steam works well on steel frames, cast housings, machined faces and sound painted panels; on elastomers, labels and open vents the working method — distance, a moving pass rather than a held pass — is what keeps the job safe. A supplier who has this list will talk to you about technique and accessories. A supplier who does not have it will simply send a price.
6. Frequency, quantity and labour
The same dirt cleaned weekly and cleaned yearly are two different problems, and the cleaning frequency changes the equipment choice as much as the stain type. Record how many items or machines are cleaned per week or per shutdown, who does the work, and how much time per machine your current method consumes. If the current method is a bucket, a brush and solvent, note that too, along with the solvent's storage and handling requirements; a heat-based method is often adopted because it reduces the number of consumables and the amount of wastewater, not because it is faster in the first pass. Where a plant needs a machine built around its own layout — a fixed bay, a mobile platform, a combination of washing, steam, foam and dust collection — the customized steam cleaning equipment route covers standard-product modification, function-module changes and prototype development rather than a catalogue substitution.
7. The information you should not rely on
Two kinds of claim should not carry weight in your decision. The first is a cleaning result reported by a supplier for a material you do not have. Ask instead for the parameters — temperature at the nozzle, pressure, tank volume, mode selection between dry and wet steam, accessories supplied — and check them against the manual for the exact model. The second is a general industry figure quoted at you in a sales conversation. Numbers about water use, cleaning time or labour savings only become meaningful when measured on your own equipment under your own acceptance standard. Run one trial, on one machine, with your crew, and record the pass time, the water used and whether the acceptance check passed.
A one-page summary to send with your enquiry
- Residue list, one line per type, with the source of each.
- In-place or removed, with a photograph of the working area.
- Voltage, water supply and hardness, drainage point, allowed downtime.
- Acceptance standard and how it will be verified.
- Materials and components to protect or avoid.
- Count per week or per shutdown, and current time per machine.
Send that page with your request and you will get a comparable quotation from any supplier of intelligent cleaning equipment, including the accessories and the utility conditions the machine needs on site. Shenzhen PowerDe Automation Precision Equipment reviews this information before recommending a model; email sales@powerde.net or call +86 13023198376 with the residue list, the photographs and the acceptance standard, and the proposal will be built on your conditions instead of a generic datasheet.
