Start with the workspace, not with the machine
The first set of answers is spatial. Measure the bay where the work actually happens: floor area, ceiling height, the width of the entry door, and whether the surface is concrete, epoxy, drainage-grated, or something else. Ceiling height matters because steam and hot-water equipment is normally operated at close range, and a low ceiling changes how fast the room dries out after a wash.
Then map the travel distance. A machine parked in a back room and pulled through a corridor behaves differently from one driven into the bay. PowerDe's cleaning equipment range is split along exactly this line: the driving-style units are positioned for indoor garages and narrow outdoor parking spaces, while the fixed units are installed at a working point and connected to a water inlet. Send the supplier a sketch or photographs of the bay and the doorway. A floor plan is worth more than a paragraph of description.
Define the power supply and water supply you can actually deliver
This is the step that most often kills an otherwise good quotation. State what is available at the wall: supply voltage, the outlet or circuit rating, and whether that circuit is shared with lifts, compressors, or lighting. Fixed equipment in the range is specified on a 220 V working supply; a battery-powered or battery-included variant removes the cable but transfers the constraint to charging space and duty cycle. Both answers are legitimate. The wrong answer is silence.
On the water side, record whether a tap line reaches the wash point, what pressure that line delivers, and how the used water is collected. Some machines draw from tap water through a fitting, others carry their own tank. A bay with a drain and a tap line is a different design problem from a curb-side job with a hose reel and a bucket of constraints. Include the fitting size in your message, because adapters are frequently the item that arrives too late.
Separate the surface list from the soil list
"We clean cars" is not a specification. Detailing workspaces differ in the substrates they touch — painted panels, plastic trim, wheels, upholstery, carpets, leather, glass, engine bays — and each one limits what temperature and pressure are appropriate. A paint surface, a fabric seat and an engine compartment require different treatment even on the same machine.
The soil list is separate and often more useful to an engineer than the surface list. Road film, brake dust, tree sap, old wax, oil, grease and interior organic residue behave differently under heat. Where oil and grease dominate, the machine needs to sustain high steam temperature at pressure; the Fixed Steam Cleaning Machine PowerDe HW02 page, for example, lists 6 kW heating power, 160° steam temperature and 0.8 MPa vapor pressure, and describes exterior vehicle cleaning at fuel stations and parking areas, interior vacuuming and disinfection, and engine-compartment cleaning. Those are figures for that model, not a general target for your site — send your soil list and let the supplier tell you which unit matches.
Describe the water-consumption and chemical constraints on site
Many indoor and covered locations restrict discharge water or prohibit detergent run-off into the drainage system. Others ban solvent-based products near occupied customer areas. Send the site rules, not your interpretation of them: what may be discharged, where, and what products the landlord, local authority or facility manager already prohibits. High-temperature steam and dry-steam modes are typically presented as a way to work with less water and less reliance on chemical detergents, which is why the same equipment turns up in indoor garages and shared commercial buildings as well as dedicated wash bays. If water use is capped, say so numerically, and ask for the consumption figure of the machine being quoted rather than inferring it from the tank size.
Quantify the daily workload in hours and vehicles
Give the supplier an average and a peak: vehicles or jobs per day, hours of continuous operation per shift, number of operators, and whether the same machine serves more than one bay. Continuous operation and peak-day operation lead to different answers, especially for battery-driven units, where runtime, recharge time and the availability of a charging point set the practical daily ceiling. If your business runs a Saturday that is three times a Tuesday, say that explicitly. It is the difference between one machine and two, and a supplier who is not told will quote one.
Record the skill level of the operators too. A two-person team with a dedicated wash bay works differently from technicians who move between customer locations carrying their own equipment.
Write down the compliance and safety requirements early
High-temperature, pressurized equipment is not treated the same way in every building. Indoor public spaces, hospitality areas, medical surroundings and transport hubs may require specific protection functions, signage, operator training or a documented procedure before equipment is approved for use. PowerDe's product pages list leakage, short-circuit, high-temperature, high-voltage and water-shortage protection on several models, but the exact set differs by model, so ask for the protection list of the specific unit rather than assuming a family-wide specification. Send your own safety paperwork requirements at the same time and ask which certificates and manuals the supplier can supply in the language your inspectors expect.
List the accessories and consumables you expect on day one
Quote the work, not just the chassis. Specify the wand, nozzle and brush set you assume you will use, the hose length required to reach the far end of the bay, the vacuum function for interiors, and the storage or trolley arrangement. Also ask what is included in the box and what must be ordered separately. A quotation that omits a longer hose, a second nozzle set or a spare filter is not comparable to one that includes them, and the cheapest-looking offer is often the least complete one.
State the service and spare-parts expectation
Detailing equipment earns money only when it runs. Before the quotation, set out what you need in writing: warranty length and what voids it, response time, the stocking of wear parts such as seals, filters, hoses and nozzles, and whether a replacement unit is offered while a repair is carried out. Ask how faults are diagnosed — remote support, video inspection, or physical return — and how long each route takes. Shenzhen PowerDe Automation Precision Equipment presents its work as manufacturer-led design, customization and technical support rather than resale, so send the site information and ask for an application-based recommendation.
If your bay is unusual — a basement with a low door, a shared forecourt, a fleet depot with no fixed wash point — say so in the first message. Customization questions are cheap at the quotation stage and expensive after delivery.
A checklist to send with your enquiry
- Bay dimensions, ceiling height, door width and floor surface; a photo or sketch
- Available supply voltage, circuit rating and whether the circuit is shared
- Water inlet location, pressure and fitting size; how waste water is collected
- Surfaces treated and the soils that dominate each surface
- Any restriction on discharge water or chemical detergents
- Average and peak daily workload, shift hours, operator count
- Safety and documentation requirements from your landlord or authority
- Assumed accessories, hose length and consumables
- Warranty, response-time and spare-parts expectation
Assembling this list costs an hour. It lets two quotations be compared line by line, and it removes the most common cause of an equipment purchase going wrong: a specification written from a verbal description of the work rather than from a measurement of the place where the work happens.
