Your configuration
- Duty class
- Pad
- Layout & ramps
- Splash guards
- Gutter & solids
- Washing
- Water
- Controls
Portable wash racks
Build the wash bay around the vehicle.
Bolt-together galvanised steel modules make a wash pad the size of the machine you wash, with the water collection built in — and it moves with you to the next site.
Configure yours in four steps and send it straight to our engineers.
Any
pad size — modules bolt together to the length and width of your largest vehicle
3
duty classes, golf carts to mining equipment
20 ft
container — the system is modular, and even its largest part fits in one or on a small truck
The KKE approach
One module. Three duty classes. Any pad size.
Every KKE portable wash rack is built from the same 2900 × 2200 mm hot-dip galvanised module. Bolt modules together for the length and width of the vehicle, choose the structural class for its weight, and the water drains across the deck into a side gutter that takes it to settling and treatment.
- Bolted, not cast — the system is modular, and even its largest part fits in a 20 ft shipping container or on a small truck; it sits on a level hardstand, comes apart and goes up again on the next site
- Light, medium and heavy duty — from golf carts to mining equipment, without paying for steel a light fleet never needs
- Water handled — side gutter, solids removal and optional containerised recycling
- Manual or automatic washing — pressure-washer stations, or automatic wash arches on a drive-through lane
Configurator
Configure your wash rack
Four short steps about your vehicles, the layout, the washing and the site. You get a starting configuration you can send straight to our engineers for a quote.
How the configurator sizes a rack
- Duty class comes from the heaviest axle load of your heaviest vehicle.
- Pad size is your largest vehicle plus working room on every side — 1 m for light duty, 1.5 m for medium and heavy duty — rounded up to whole 2900 × 2200 mm modules.
- Splash guards run along both long sides, and across the closed end when vehicles drive in and reverse out.
- Gutters run along one side, or both sides once the pad is three modules wide. Where the site can be dug, a simple trough feeds an underground dirt trap beside the bay; above ground, medium- and heavy-duty gutters carry their own scraper conveyor.
- Water and controls follow from your reuse level and whether the site can be dug; a container's heating and ventilation follow from the site temperatures.
This is a starting configuration, not a quotation. KKE Engineering confirms axle, wheel and point loads, the pad layout and the water system for your vehicles and site before we quote. A level hardstand is still needed under the rack.
Get started
Have our engineers size a wash rack
Used the configurator? Your configuration is already in the message below. Otherwise, tell us the machines, the site and roughly how much washing you do.
The family
Three duty classes, one module
| Duty class | Indicative vehicle class | Typical equipment | Sludge handling |
|---|---|---|---|
| Light duty | up to approx. 2 t | Golf carts, ATVs and UTVs, small pickups, vans, small forklifts, light plant | Optional |
| Medium duty | approx. 18–25 t | Commercial and dump trucks, backhoes, medium wheel loaders, excavators, telehandlers, tactical trucks | Recommended |
| Heavy duty | up to approx. 80 t | Mining support and heavy earthmoving equipment, large loaders and dozers, heavy haulage, armoured and engineering vehicles | Recommended, with a scraper conveyor for high mud loads |
In this section
Pick a duty class, then configure the rack
Start with the structural class the machine needs. Pad size, ramps, splash containment, sludge handling and water treatment are all selected on top of it.
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Light duty
Up to about 2 tonnes — golf carts, UTVs, small pickups and light plant, on a pad that isn't over-built for them.
Read more
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Medium duty
The general industrial rack, around the 18–25 t vehicle class — construction trucks, loaders, excavators and telehandlers.
Read more
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Heavy duty
Reinforced structure targeting vehicle classes up to about 80 t, with the sludge handling heavy mud loads actually need.
Read more
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Wash rack selection guide
What a wash rack is, how above-ground and in-ground types differ, and the four numbers our engineers need to size one.
Read more
water
Water recycling & sludge
Containment under the deck, solids out before treatment, and a containerised plant that returns water to the wash guns.
Read more
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Ramps & splash guards
Bolt-on ramps and removable splash containment — open, single-side or three-sided, configured for the site you are on now.
Read more
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Defence & military
Modular racks and containerised treatment for utility, tactical and armoured vehicles — built to be set up, taken down and moved.
Read more
water
Settling tanks
Steel settling tanks for passive separation of mud, silt and debris — the simplest water stage behind a wash rack.
Read moreHow it works
From the wash gun back to the wash gun
The rack is the collection end of a loop. How much treatment sits at the other end depends on your water, your dirt and what you need to reuse it for.
01
Wash on the pad
The vehicle drives up a ramp onto the steel deck. Operators wash it manually with high-pressure lances; splash guards contain overspray where the site needs them contained.
02
Contain and channel
The deck drains across its width into a side gutter that runs the length of the pad, carrying water, mud, sand and grit toward the collection end — no under-slab drainage required.
03
Drop the solids
Heavy solids are separated before they reach the treatment plant. A scraper conveyor clears accumulated sludge on high-mud installations; a sludge-capable pump moves the slurry on.
04
Treat and reuse
A containerised plant takes it from there — separation, filtration, oil removal and storage — and returns treated water to the wash guns. Top-up water covers what evaporates, leaves on the vehicle or goes out with the sludge.
FAQ
Portable wash racks, answered
What size does the wash rack come in?
There isn't one size. The standard module is 2900 × 2200 mm, and modules combine to make the pad as long and as wide as the equipment needs. A compact pad suits utility vehicles; multi-module arrangements are built for construction and mining equipment.
Why 2900 × 2200 mm?
The 2200 mm dimension fits inside a standard ISO shipping container. The 2900 mm dimension lets two modules sit side by side in a 20 ft container and four in a 40 ft, so freight is not paying to ship empty floor — and two modules across make a lane about 6 m wide once the side gutter is added.
Do we still need civil work?
Much less than a conventional wash bay — there is no excavation, no reinforced wash slab and no buried drainage. You do still need a suitable level hardstand for the rack to sit on, sized for the machines you are washing. We would rather tell you that up front than have a pad settle.
How much weight will it take?
The three duty classes target roughly 2 t, 18–25 t and up to 80 t vehicle classes. Those figures place your machine in the right class — they are not the published rating. Final axle, wheel and point-load capacities come from structural calculation against your actual vehicles before we quote.
What happens to the mud?
It is designed for, not ignored. Solids are separated from the collected water before treatment; a sludge-capable pump moves the slurry, and a scraper conveyor clears accumulated solids where the loading justifies it. Sludge disposal is then a site waste stream like any other.
Can the water be reused?
Yes — the collected water goes to a treatment system and treated water returns to the wash guns. We do not claim a closed loop with no make-up water: evaporation, carry-off on the vehicle, sludge removal and filter backwashing all take water out, so a top-up supply is part of the design.
Can it be moved to another site?
That is the point of it. Modules are bolted rather than cast, sized for container transport, and hot-dip galvanised so they survive being taken apart, shipped and reassembled. The containerised equipment room travels the same way.
What does one cost?
It depends on the pad area, the duty class and how much treatment you need behind it — a small light-duty pad and an 80-tonne-class rack with a containerised recycling plant are different orders of magnitude. Send us the vehicles, the site and the wash volumes and we will quote the configuration.
Ready to size your wash rack?
Four steps in the configurator, or send us your vehicle list — either way our engineers come back with a layout and a quote.