A cleaning trial on a manufacturing floor answers one question: will this method remove your soil, on your surfaces, inside your downtime window? Arranging the machine is the easy part. What makes the trial worth the time you spend on it is the information you prepare before the equipment arrives. The following is what to have ready.
Describe the soil before you describe the machine
Write down what is actually on the surfaces, in plain terms:
- Type of soil: cutting oil, hydraulic oil, grease, dust bonded with oil mist, dried coolant residue, or a mixture of these.
- State of the soil: a fresh film that lifts with a wipe; a dark, polymerized deposit that has survived months of warm machine cycles; or a deposit with embedded abrasive fines and swarf.
- Where it sits: horizontal tops, vertical casings, seams and corners, chip conveyors, drip trays, the floor around the machine.
- Hazard information: collect the safety data sheets for the process fluids so everyone involved knows what is being removed and how the run-off should be handled.
This description decides the method before anyone quotes one. Hot water and steam act on oils and greases; a polymerized deposit usually needs mechanical removal before any thermal method will touch it; embedded solids leave residue behind regardless of temperature. A word like “dirty” hides all three cases, and the trial will end up testing the wrong one.
List the surfaces — and mark the ones to protect
Produce a surface list with two columns: what will be cleaned, and what will be shielded or left out.
- Usually cleanable in most shops: painted casings, external guards, chip conveyor housings, panels away from live components, and the floor zone around the equipment.
- Needs protection or exclusion: guideways and ball screws, spindle tapers, electrical cabinets and connector fields, open bearings, nameplates and labels, precision tables and finished workpieces nearby.
- Material notes worth recording: bare steel, which can flash-rust when moisture sits on it; painted surfaces with existing damage; polycarbonate windows; any surface with a coating specification.
- Out of scope, stated explicitly: machine interiors, coolant and hydraulic circuits, filter housings. A surface-cleaning trial does not maintain the machine.
Marking the protected items in advance prevents the two failures that end most trials: a damaged guideway found after the fact, and a trial stopped halfway because nobody knew what was safe to spray.
Agree on acceptance criteria before the first pass
A trial without a written pass/fail standard produces an opinion, not a result. Before the trial starts, agree on:
- Who decides: the production lead, the maintenance lead, and the cleaning supplier should all apply the same standard.
- How: raking light across the surface to reveal remaining film; a white cloth wipe over agreed spots; a water-break check on painted surfaces where applicable.
- Reference points: photograph the same marked spots before and after, from the same angle and distance.
- Time limits: the cleaning window and drying time that count as acceptable for your schedule.
These checks are simple and repeatable, which is exactly what makes them useful: two people should reach the same verdict on the same surface.
Record the site conditions the machine will actually meet
The trial should run under real conditions, so measure them first:
- Power: what supply is available near the trial position, and whether a dedicated circuit is required. An electrician should confirm this before the trial, not during it.
- Water: distance from the nearest tap, hose routing, and frost protection if the trial runs in a cold period.
- Drainage: where the run-off goes, whether it passes an oil separator, and what the local drainage authority requires. Discharge rules are a local matter and should be confirmed with the local authority.
- Ventilation and space: steam indoors needs air movement. Note floor slope, clearances, door widths, and the delivery path from the loading point to the trial position.
- Time window: use a real planned stop — a shift change or a scheduled maintenance slot — so the trial measures the job as it would actually be done.
Sort out permissions, safety, and people
- Machine status: stop, lockout/tagout, and confirmation that surfaces have cooled before anyone approaches them.
- Personnel: who operates the lance, who has been trained, who supervises, and what personal protective equipment is required for hot water and steam work.
- Area control: barriers or signage around the trial zone, and notice to anyone who normally works in that area.
- Permits: whether your site requires a work permit for cleaning work near running production.
Collect this information from your own team before the trial. It is your production environment, and no supplier can guess your lockout rules or your shift pattern.
Exchange information with the supplier, both ways
Send the supplier the soil description, the surface list, the acceptance criteria, and the site conditions. In return, ask them to explain — in writing — what their equipment data means for your trial:
- What steam temperature and pressure do for your specific soil, and what they do not do.
- Whether the machine switches between dry and wet steam, and which mode suits which surface on your list.
- Tank capacity and the resulting work cycle: how long the machine runs before it needs a refill, and where the refill and drain points are.
- What the machine’s built-in protections cover — and what they do not. Protections guard the machine; your electrical supply and drainage still need site verification.
- Accessories, spare parts, lead times, and who supports the trial on site.
For example, the data sheet of the PowerDe HW02 fixed steam cleaning machine lists a 160°C steam temperature, 0.8 MPa vapour pressure, 6 kW heating power, an 80 L SUS304 tank, 220 V supply, a tap-water inlet, and dry/wet steam switching. Read a sheet like that against your own conditions: the temperature and pressure tell you what the machine can do to oil and grease deposits, the tank size tells you how long one work cycle lasts, and the inlet and supply requirements tell you what the site must provide. The HW02 product page describes vehicle cleaning applications, so before a manufacturing trial, confirm with the manufacturer whether the intended shop-floor surfaces are suitable.
When you compare options, ask specifically about industrial steam cleaning equipment as a category: which model suits a fixed trial position, which is mobile enough to follow the machines, and what the supplier recommends for each surface on your list.
Keep a record sheet on trial day
One row per machine or zone, with the same fields every time:
- Start and finish times, including setup and drying — the real cost of the task is in the total, not the spray time.
- Water used and how often the tank was refilled.
- Which acceptance check was applied, and the pass/fail result for each spot.
- Before and after photographs at the marked reference points.
- Problems encountered: areas that could not be reached, moisture left in seams, and operator feedback on handling and safety.
The record sheet turns a single trial into a comparison you can repeat on a second machine, and it is the document you and the supplier both use to decide the next step.
One page, one machine, then expand
None of this requires a formal project document. A single page carrying the soil description, the surface list with protected items, the acceptance checks, the site conditions, and the trial window is enough to run a valid trial — and it is also the information an experienced supplier needs to recommend the right steam cleaning for manufacturing facilities instead of guessing. Start with one machine in one planned downtime window, record the result against the agreed checks, and expand only to surfaces the trial has proven. If you want to arrange a trial for your production area, PowerDe can review your surface list and site conditions through the contact page.
