A cleaning trial on production-line machinery rarely fails because the equipment underperforms. It fails because nobody defined, in writing, what the trial was supposed to prove. By the end of the shift the machine looks better, the operator is exhausted, and the purchasing decision is no clearer than it was that morning. The information below is what a plant team and a cleaning-equipment supplier both need before the first nozzle pass, so that one trial can answer the question it was meant to answer.
1. Describe the machine, not the machine category
Suppliers plan around a specific machine, not a class of machines. Before the trial, record the make, model, age and what the machine produces, then walk the machine together with the line supervisor and write two lists: the surfaces the trial will clean, and the surfaces it will not. The second list matters more than the first. Guideways, ball screws, spindle tapers, electrical cabinets, encoder scales, bearings and nameplates usually need shielding or are excluded entirely; housings, guards, chip conveyors and painted panels are normally straightforward.
Record the physical access as well, because a cleaning method only works where the nozzle can reach:
- Door widths, aisle turns and the route from the cleaning machine to the target machine, measured rather than estimated
- Whether the machine stays in the line during the trial or moves to a wash bay
- Fixed obstacles that block nozzle reach, and any panels that would need tools to remove
- Photographs taken from the angle you intend to clean at, not brochure photographs
2. Describe the soil as it actually is
Soil condition, not machine type, drives the choice of method and parameters. Distinguish three states and say which one you are dealing with:
- A fresh oil or cutting-fluid film transferred by contact or splash, hours to a few days old
- Polymerized, hardened deposits built up over months, often dark and varnish-like
- Oil carrying embedded solids such as abrasive fines or chip particles, which behaves like an abrasive paste
Also note where the soil comes from, how long it has been there, and how the area is cleaned today. A supplier who knows the soil can say honestly whether a high-temperature steam method will handle it, or whether scraping, a chemistry step, or a different process belongs in the plan.
3. Write the acceptance criteria before the trial starts
Agree what counts as clean before anyone starts cleaning, and make the check repeatable by more than one person:
- Oblique-light inspection for any remaining film, with the light angle and lamp position noted
- A white-cloth wipe over agreed test spots
- A water-break test on painted or coated surfaces, where a continuous water film indicates an oil-free surface
- Before-and-after photographs from fixed reference points, with the camera position marked on the floor
Name the person who signs the result and the evidence that person requires. A trial without a named acceptance owner turns into an opinion debate afterwards.
4. Fix the time window and the production constraints
A trial that borrows time without permission gets cut short. Record the downtime the trial is allowed, who grants lockout and tagout, how long hot surfaces need to cool before anyone works near them, and whether the cleaning happens between shifts or during a planned stop. Then measure the full cycle during the trial: heat-up, cleaning, and the drying time before the machine can run again. Drying time is the number most often forgotten and most often decisive for production-line work, because a machine cannot go back to production damp.
5. Record the site and utility conditions
- Power: the available voltage near the machine, whether a dedicated circuit exists, and the cable run distance
- Water: whether a tap-water connection is available and how far it is from the planned machine position
- Drainage: where the condensate and rinse water will go, and whether an oil separator or other treatment applies — discharge rules are set by the local authority, so confirm them locally
- Ventilation: steam work indoors raises humidity and reduces visibility, so airflow needs checking before the trial, not during it
- Floor condition: slopes, walkways that must stay usable, and standing-water paths during the trial
6. Collect the equipment information the supplier should provide
Ask for the working parameters in writing: steam temperature and pressure, whether the machine switches between dry and wet steam, heating power, tank capacity and the resulting work cycle, hose and wand lengths, and the protections built into the machine. These figures tell you what the machine can do and how long it can do it before refilling or recharging. For example, the datasheet for the PowerDe HW02 fixed steam cleaning machine lists a 160 °C steam temperature, 0.8 MPa vapor pressure, 6 kW heating power, an 80 L SUS304 tank and a 220 V supply — enough to judge cleaning capability and work cycle against your own conditions. Note that the HW02 product page describes vehicle-cleaning applications, so confirm production-line use with the manufacturer before treating those figures as a fit for your machinery.
Just as important, ask what the datasheet does not state: continuous runtime, battery or recharge details if the model uses a battery, the accessory list, and spare-parts availability. Industrial steam cleaning equipment is sold on its parameters but judged on the gaps between them.
7. Agree on the record sheet
One page per trial, filled in during the trial rather than afterwards: machine identifier, operator names, the parameters actually used, timings for heat-up, cleaning and drying, before-and-after photographs, and a line for surprises — because the surprises are what the second trial exists to address. A useful habit is to leave one panel or one half of a surface uncleaned as a permanent reference, so the result can be compared honestly instead of from memory.
8. Run one machine, one shift
Resist cleaning the whole line. One machine, one shift, judged against the written acceptance criteria, produces a decision. If the result passes, extend to a second machine with similar soil. If it passes on housings but not on polymerized deposits, adjust the plan — pre-scraping, a longer dwell, or a different method for those areas only. If it fails, the record sheet shows which assumption was wrong, and that is worth more than a flattering demo.
If you are planning production line equipment degreasing and want a supplier to prepare for a real trial rather than a sales demo, send the machine description, soil description, acceptance criteria, time window and site conditions before the visit. That same information is what separates a supplier quoting from a brochure from a supplier engineering a solution. You can send it through our contact page; the more of the list you can attach, the more specific the answer will be.
