Views: 0 Author: Site Editor Publish Time: 2026-06-23 Origin: Site
A car wash self service lets drivers clean their own vehicles using a coin- or app-operated car wash machine that delivers high-pressure water, foam, and vacuum cleaning. It's affordable for customers and profitable for owners, with compact units like the OKO OK-108 measuring just 65cm×60cm×170cm and supporting payment by WeChat, Alipay, or credit card.
A self service car wash gives drivers full control over how they clean their cars—and gives entrepreneurs a low-staff, high-margin business model. Instead of paying for a full-service detail or waiting in a long tunnel queue, customers grab a wand, choose a setting, and get the job done in minutes.
This guide explains how self service car wash machines work, what features matter most, and how to compare popular models. We'll also look at real specs from OKO car wash equipment, including the OK-108, OK-208, and OK-308 units, so you can decide which setup fits your space and budget.
A self service car wash is a station where the customer operates the equipment themselves. The core of the station is a car wash machine that pumps high-pressure water and foam through a wand, paired with a vacuum for interior cleaning.
Customers pay per use—often by coin, card, or mobile app—and only pay for the time or functions they need. This keeps prices low for drivers while reducing labor costs for owners.
A typical self service car wash machine offers a mix of functions:
Clear water rinse to remove loose dirt
Foam application to lift grime
Hand washing with a brush or mop
Dust removal and vacuuming for interiors
Ozone treatment for odor control
Most machines follow a simple flow. The driver parks in the bay, selects a payment method, and chooses a function from the control panel. Voice navigation then guides them through each step.
Inside the unit, a commercial high-pressure water pump pushes water through a copper wand at strong pressure—anywhere from 110kg to 150kg depending on the model. A separate foam chamber mixes detergent for the soaping stage. A built-in vacuum handles the interior.
OKO car wash machines include voice navigation, automatic foam balancing, and an operating display lamp on every model, which makes them easy for first-time users to operate.
OKO, founded in 2019, produces three main self service models: the OK-108, OK-208, and OK-308. They share the same core functions but differ in size, pump power, and display features. The table below breaks down the key specs.
Feature | OK-108 | OK-208 | OK-308 |
|---|---|---|---|
Size | 65cm×60cm×170cm | 75cm×65cm×180cm | 75cm×65cm×180cm |
LCD display | No | No | Yes |
Water pump | 2.2kW | 2.5kW | 3.0kW |
Water pressure | 110kg | 130kg | 150kg |
Out-of-water flow | 12L/min | 12L/min | 15L/min |
Bubble gun | No | Yes | Yes |
Net weight | 90kg | 120kg | 120kg |
Water tank | 20L | 60L | 60L |
Foam chamber | 20L | 60L | 60L |
Body material | Cold rolled plate, anti-rust paint | 1.5 galvanized sheet | 1.5 galvanized sheet |
All three models share these performance features: water consumption of 80–110L per wash, effective range of 8–13m, a working temperature range of -15 to 55°C, and a 1400W vacuum cleaner with 10m of large-diameter pipe.
Choose the OK-108 if space is tight and budget matters most. At 90kg and 65cm wide, it's the most compact and affordable, though it skips the bubble gun and LCD screen.
Choose the OK-208 if you want stronger pressure and a foam gun without paying for a display. Its 2.5kW pump and 60L tanks suit busier locations.
Choose the OK-308 if you run a high-traffic site and want the LCD display, the strongest 3.0kW pump, and the highest 15L/min flow rate.
Not all self service machines are built the same. When comparing equipment, focus on these factors:
Pump power and pressure: Higher pressure cleans faster and tackles tough grime. OKO units range from 110kg to 150kg.
Durable materials: Look for 304 stainless steel water control parts and pure copper high-pressure kits, both standard on OKO machines.
Flexible payments: Modern machines accept WeChat, Alipay, and credit card payments, which removes the need for coins.
Remote management: OKO machines include background management tools for online/offline notifications, remote start, income records, and member recharge.
Cold-weather performance: A working range down to -15°C keeps the machine running through winter.
Operating costs stay low thanks to efficient water and power use. OKO machines list power consumption at 0.22 c/m and water use of 80–110L per wash. Because customers do the work, there's no need for full-time washing staff.
Payment is handled through WeChat, Alipay, or credit card, and the background system tracks income in real time. Owners can also set custom prices for clean water, foam, vacuuming, and hand washing, which makes it easy to fine-tune profit per function.
Each OKO machine ships with starter accessories, including a bottle of foam, 50 membership cards, a waterproof pad, a faucet, a car wash mop, and a one-year flow card. The brand also supports custom logos and slogans for orders of more than five units.
For the right location, yes. A self service car wash needs little staff, runs on low utility costs, and serves customers around the clock. The compact footprint of a unit like the OK-108 means you can fit stations into small lots or add bays as demand grows.
Success depends on placement. High-traffic spots near apartments, gas stations, or busy roads tend to perform best. The remote management and membership features built into OKO machines also help owners build repeat business through recharge cards and nearby-customer coupons.
A self service car wash machine puts powerful, affordable cleaning in your customers' hands while keeping your overhead low. The key is matching the machine to your space and traffic—a compact OK-108 for tight budgets, an OK-208 for balanced performance, or an OK-308 for high-volume sites with an LCD display.
Before you buy, measure your available bay space, estimate daily traffic, and decide which payment methods your customers prefer. From there, you can pick the model that delivers the best return. To explore full specs or request a quote, reach out to OKO directly.
OKO self service car wash machines use between 80 and 110 liters of water per wash, depending on the functions selected and how long the wand is in use.
Yes. OKO machines operate in temperatures from -15°C to 55°C, so they can run through winter and hot summers alike.
OKO machines accept WeChat, Alipay, and credit card payments. Owners can also issue membership cards and set custom prices for each function.
The OK-108 is the compact, budget model with a 2.2kW pump and no LCD display. The OK-308 is the premium model with a 3.0kW pump, 150kg water pressure, a bubble gun, and an LCD screen, making it better for high-traffic locations.
Yes. Every OKO model includes a 1400W vacuum cleaner with 10 meters of large-diameter pipe for interior cleaning.
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