What the shift window actually contains
A floor clean between production shifts is not one task. On a brewery floor you are dealing with spilled wort and beer residue, yeast and biofilm left in the texture of the floor, grease tracked in by pallet jacks and conveyor drives, and grit carried in from the yard. Each of those behaves differently under heat and mechanical action, so a written method that treats them as a single job is the first thing to question.
Ask the crew to break the shift clean into the steps they perform, in order, and time each one. The result usually has the same shape everywhere: solids pushed to a drain or a collection point, a chemical step with a stated contact time, mechanical agitation, rinse, squeegee, and a drying wait before the next run starts. If that drying wait is the longest line in the list, equipment selection changes the schedule rather than the cleaning result, and that is worth recording before any machine is quoted.
Hot water, steam, and dwell time
The high-temperature machines listed on this site are dry-steam and wet-steam machines, with a hot-water mode added on the mobile models. The distinction matters on a brewery floor because dry steam carries heat with comparatively little free water, so it is the mode to trial on sticky sugar and yeast films on walls, draping, platform edges and equipment feet, where a flooded surface creates a slip hazard and extra runoff to manage.
The fixed steam cleaning machine page for the HW02 publishes 160 °C steam temperature, 0.8 MPa vapour pressure, 6 kW heating power and an 80 L SUS304 tank with a tap-water inlet. Those are the figures to put into a method statement, and they are also the reason to ask for values at the nozzle rather than at the boiler: steam temperature and pressure at the tip, and the hose and wand lengths, are not published on that page. Ask for them in writing and attach the supplier's answer to your method.
Dwell time is what turns heat into released soil. Record it as seconds per pass for each surface type, then hold the crew to that number on a trial area. If a chemical step is being replaced, state which step is being replaced, which in practice is the degreasing and scrubbing step, and keep your own sanitation step with its contact time unchanged. Whether a finished floor meets a hygiene requirement is decided by your food-safety plan and your auditor, not by an equipment data sheet.
What a documentation pack should contain
A service provider who can hand over the following has done the engineering work. One who cannot is selling a machine and a price per visit.
- A floor map divided into zones, with the surface finish and the drainage route noted for each zone.
- The soil type assumed per zone, and the machine mode and dwell time assigned to it.
- The machine's identity and published parameters, plus an explicit note of every parameter the manufacturer does not publish.
- Water supply point, drainage or runoff collection method, and the power source and cable route for the shift.
- Trial-area results: appearance after one pass, whether seams and hollow legs took water, and measured drying time.
- The sanitation step retained, with product, concentration and contact time, unchanged from the previous method.
- Sign-off sheets per shift naming the crew, the zone, the start and finish times, and any exception taken.
Fixed, battery, or hand-pushed for a brewery floor
The fixed HW02 runs on 220 V with a 6 kW heater and takes tap water through a 4-point internal-tooth inlet. Where a zone has a water point and a drain within hose reach, and the shift window allows a cable run that does not cross a traffic route, that machine is the straightforward choice. Where those conditions are missing, a battery model removes the cable but puts a runtime limit and a charging wait into the schedule, and both should be counted as labour rather than treated as a footnote.
For walls, drains, platform edges and areas a rider cannot reach, review the mobile and hand-pushed models against your door widths, thresholds and travel distance. Ask the intelligent cleaning equipment manufacturer for runtime per charge and charger output for the specific battery variant, because those two figures decide whether one crew can finish a zone in a single pass.
Measure the floor before specifying the machine
Five numbers decide the specification, and all five come from your site rather than from a catalogue: square metres per zone and shifts per week; minutes per zone measured on a trial, including water filling, dwell and the drying wait; travel distance and the width of the tightest door or threshold; the distance from each zone to the nearest water point and drain, and whether runoff has to be collected rather than drained; and the real window between the end of one run and the start of the next.
Take those numbers to a supplier review and ask for the parameters the product page does not publish: nozzle temperature and pressure, hose and wand length, accessories for food-contact surfaces, noise level, and service intervals for heaters and seals. Where a zone will not suit a standard catalogue unit, the customized cleaning equipment route is how you get a build sized to your zones and your shift window.
Before you sign
- Run one trial zone with the mode and dwell time written down, and photograph the result.
- Treat seams, hollow legs, wheel bearings and electrical enclosures as restricted areas until the trial says otherwise.
- Confirm how runoff is collected in every zone that has no drain.
- Keep the sanitation step and its contact time in the new method.
- Require the unpublished parameters in the contract documents, not in a verbal answer.
Send floor layout and aisle photographs, zone areas, shift counts, the time window, and your water, drainage and power conditions to sales@powerde.net or +86 13023198376, and ask for a proposal that answers the parameters listed above. That is how two suppliers get compared on the same basis instead of on price alone.
