The question is worth asking in writing, because the answer is not on the product page. PowerDe lists a hand-pushed HMW3 in both a version without battery and a version including battery, and the detail page gives the working power supply as a 48 V battery while the no-battery card states plainly that no battery is included. Cleaning modes are the part that is documented: the same page lists dry steam and wet steam, and the same model family is described as a high-temperature, high-pressure machine with a high-pressure water gun and nozzle. Battery capacity, runtime, steam temperature and steam pressure for this model are not published, so a buyer evaluating a battery-powered HMW3 is really evaluating a short list of confirmed settings plus a longer list of items to be confirmed.
Start with what the page already confirms
Before comparing quotations, separate the settings you can rely on from the settings you will have to ask for. On the PowerDe HMW2 steam cleaner is not the machine in question, but its neighbour in the same PowerDe cleaning equipment line makes the point: several machines are published as dry-steam and wet-steam units, and the driving-style units add a hot-water mode. The HMW3 detail page states two modes, not three. If your cleaning routine depends on a hot-water rinse, that difference is the first thing to raise, and it should be answered in writing rather than inferred from a photo of the control panel.
Dry steam and wet steam decide what the machine is for
Treat the two published modes as two different jobs. Dry steam puts most of the energy into heat and leaves the surface comparatively dry afterwards, which is what you want on surfaces where standing water is a nuisance: equipment casings, frames, walls and fittings that sit next to a walkway. Wet steam carries more water with it, which helps lift baked-on soil but leaves runoff that has to go somewhere. The published water inlet for the HMW3 is tap water through a 4-point internal-tooth fitting, and the water tank is listed as a 50 L clean-water tank. That tells you the machine is refilled by hand from a tap rather than plumbed in, so a battery-powered unit can be pushed away from the wall - but the refill point, not the tank, sets your working radius.
Ask the supplier which mode is the default at start-up, how the mode is changed, and whether one mode can be selected and left running for a whole task. On a machine you are evaluating for repeat daily work, a mode switch that has to be re-set for every item slows the crew down more than any difference in power rating.
Battery or mains: which constraint are you accepting?
A 48 V battery working supply means the machine does not need a socket at the work face. What it does need is a charging place, a swap or charging routine, and a plan for the shift length. None of those figures - battery capacity, run time per charge, charger rating, recharge time - appear in the published parameter table, so write them into your question list and have the supplier fill them in. A useful test is to run the machine on the least critical section of your work area, log the clock time when output drops or the machine stops, and compare that against the supplier's stated number. If no number was given, your own trial becomes the baseline, and you should say so in the purchase file.
The two published variants of the HMW3 answer different situations. If your work is concentrated near one building with an available socket and you can run a hose, the no-battery version avoids carrying and charging a pack you do not need. If your crew moves between floors, buildings, or open yards where the socket is far away, the battery version is the one that keeps the machine at the work face. The trade is not "battery good, mains bad": it is whether you accept charging downtime in exchange for moving freely. Ask the supplier which accessory pack and charger are supplied with the battery variant, and what is left out.
Move the machine through your actual route
The HMW3 is listed as a hand-push machine with dimensions of L1150 mm x W520 mm x H1030 mm. Before you buy, walk the route with those dimensions in mind: door widths, the narrowest gap between benches or racks, the turning space at the end of the aisle, threshold heights, and any drainage channel the wheels will cross. A machine that fits through the door but cannot turn at the working end will be carried, and a carried machine gets damaged. Add the hose to that walk - the published data does not give hose or wand lengths, so measure the distance from where the machine will stand to the farthest point you need to reach and ask whether the supplied hose covers it or an extension is available.
The description also describes the machine as one that can be stopped and driven at any time, which is useful in shared space. Even so, set the working boundary before the crew starts: hot steam and a high-pressure gun are a hazard to anyone who walks into the area unannounced, and the safety functions - leakage, short-circuit, high-temperature, high-voltage and water-shortage protection, plus high-voltage explosion protection, as listed on the page - are there to stop the machine, not to protect a bystander standing in front of the nozzle.
Match the mode and the gun to your surfaces
The published cleaning method is a high-pressure water gun with a nozzle. On painted panels, plastic housings, seals, insulated pipework and coated floors, the nozzle distance and the mode matter more than the machine model. Run a short trial on the least visible part of one item, keep the nozzle further away than feels natural at first, and check the surface afterwards for lifted coating, forced water into seams or a changed surface texture. Then repeat at closer range if the soil has not moved. Record which mode and which nozzle setting you used, because that record is what turns a one-off trial into an instruction your crew can follow.
Where your work touches food handling, hospital or other regulated areas, do not settle for a general claim. The listing describes the machine as used for cleaning and disinfecting hospital beds and medical machinery, but your own audit or the equipment supplier's written statement is what your inspector will look for. Ask, in writing, what the machine is specified for and what documentation is supplied with it, and send the machine to your site for a trial before the specification is signed off.
Where the task is heavier soil on equipment or hard-standing in a fixed area, a machine that sits at one position close to the water feed and drain may suit the routine better than a pushed unit. That is a site decision, not a preference: compare fixed steam cleaning machine options against the hand-push route, and check which models publish a vacuum function. One driving-style page lists a vacuum suction method with a flat nozzle and a sewage tank; pages for other models do not, so read the page for the exact model you are quoting and do not assume the function is shared across the range.
What to send PowerDe before you ask for a price
A clear enquiry gets a usable answer, and it protects you later. Send the surface types and how soiled they are, the areas and route dimensions, the shift length you need the machine to cover, whether a socket and a drain are at the work face, the access to a tap for refilling, and the items you will not clean (electrical enclosures, bearings, anything open to the atmosphere). Then ask three specific questions: what steam temperature and pressure this model delivers, what battery capacity and run time apply to the battery variant and how it is charged, and which modes and nozzle accessories are included in the quoted configuration.
If your site is not a standard case, say so and ask for a build around it; the company lists customised configurations and engineering services, so a changed fitting, accessory set or supply arrangement is worth raising at the enquiry stage rather than after delivery. Customized steam cleaning equipment and intelligent cleaning equipment manufacturer support from Shenzhen PowerDe Automation Precision Equipment Co., Ltd can be discussed before the specification is fixed.
To put those questions to the manufacturer directly, use the contact page on this site, or write to sales@powerde.net. Ask for the missing figures in writing and insist on a site trial with your own surfaces before the HMW3 you evaluate becomes the machine you own.
