How can a facility set acceptance criteria for cleaning machined workpieces with oil residue?

Fixed and mobile machines solve different problems. A mobile steam cleaning machine travels to the job: vehicles in a garage, a row of parking spaces, equipment spread across a shop floor. A fixed unit treats a defined area as a station — the cleaning task comes to it, or a hose run from it covers a short, repeatable route.

Write down the two or three tasks that recur at that position week after week. If the answer is "we wash whatever happens to be dirty", the site is not ready for a fixed machine yet, and a mobile unit is the lower-risk purchase.

Electrical supply. Confirm the available supply at the exact point where the machine will stand, not in the distribution board across the room. The PowerDe HW02 steam cleaner is listed with a 220 V working voltage and 6 kW heating power, so the circuit, socket and cable run must suit that load before the unit is positioned.

Water supply. The HW02 detail page specifies a tap-water inlet with a 4-point internal-tooth joint, 1/2 inch. Match your inlet fitting to that connection at the installation point, and confirm that potable supply reaches the position at a usable pressure and flow. A unit that has to be hand-filled each shift loses most of the labour advantage a fixed station is supposed to deliver.

Floor space and access. The published dimensions for the HW02 are 1,200 × 800 × 1,200 mm including handles. Measure the position, then measure the route the machine travels on delivery. A doorway that is fine for a pallet truck is not automatically fine for a machine measured with its handles included.

Ask how many continuous working minutes the station needs per cycle, and how many cycles per shift. Fixed machines are chosen for a steady load, and the differences that matter are in the tank and in the mode of the steam, not in the nameplate.

• The HW02 lists an 80 L SUS304 tank. Compare that against the volume of water one cycle consumes at your pace, and decide whether the supply line must run continuously or only between cycles.
• The machine switches between dry steam and wet steam. Dry steam suits surfaces where you want the heat and the grease to release without flooding the area; wet steam suits loosening heavier deposits. A station that only runs one mode will be the wrong station for half the tasks on your list.
• Steam temperature of 160° and vapour pressure of 0.8 Mpa are given on the HW02 detail page. Treat both as site-planning inputs: the distance from the boiler to the wand, and the height the hose has to climb, both affect what reaches the surface.

If your cycle pattern is unpredictable — one quiet week, then three heavy days — say so when you request a quotation. Duty pattern is a legitimate reason to change the specification, not something to hide in a tender document.

The HW02 page describes vehicle exterior cleaning at gas stations and parking lots, interior vacuuming and disinfection, and engine-compartment cleaning, and it lists dry/wet steam together with a vacuum cleaner. If your task is inside that scope, compare configurations directly. If your task sits outside it, do not let a specification sheet carry an assumption.

Typical examples: central kitchen degreasing work — hoods, stovetops, cooking equipment — and machine-tool or workshop cleaning are enquiries the factory receives regularly, and the suitability of a given model for that environment has to be confirmed for that environment. Send the surface type, the soil, the shift pattern and the room, and let the configuration follow from that. The same information is what makes a customized steam cleaning equipment request answerable instead of speculative.

The HW02 overview lists leakage, short-circuit, high-temperature, high-voltage, water-shortage and high-voltage-explosion protection. Get that list in writing in the specification you receive, and match it against the failure modes your own site actually produces — hard water, an operator who leaves the unit running, a supply line that gets shut off at the weekend.

Then confirm what "fixed" means for maintenance. Who services the boiler, who descales the tank, which consumables wear, and how the machine is isolated before that work. A station nobody is assigned to maintain will be off the floor within a year, whatever it cost.

A comparison is only fair when every quotation answers the same questions. Request, for each option:

• The published parameters for that exact model and variant — voltage, heating power, tank volume, steam temperature and pressure, overall dimensions — not a range covering a product family.
• The water inlet connection and the required supply pressure at the machine.
• The protection functions included as standard, and which are options.
• The named supplier of wear parts, and the service interval, in writing.

Shenzhen PowerDe Automation Precision Equipment publishes its cleaning range at PowerDe cleaning equipment, and the HW02 fixed steam cleaning machine page carries the detailed parameters for the fixed configuration. Send us your site conditions — supply, water, room, and the tasks from item 1 — and we will tell you whether a fixed machine is the right answer, and which one.

A fixed steam cleaning machine fails in the field for boring reasons: wrong circuit, wrong fitting, wrong tank size, no owner for the maintenance. All four are visible before purchase. Confirm the position, the supply, the pattern of work and the scope, and the rest of the comparison is ordinary.