What the Sun Series 140 Bar Car Washer Is
The Sun Series 140 bar car washer is a trolley-mounted cold-water machine built around a 3 kW single-phase motor. It runs on 220 V household power, delivers 12 L/min (3.17 GPM), and holds 140 bar (2030 psi) at the lance. The complete unit weighs 54 kg and sits on its own cart, so one operator can roll it from one vehicle to the next without lifting.
Two duties define this machine. The first is touch-free car washing: charged with Garass or WINGSPAN touch-free shampoo, it removes foam and road film without a wash mitt touching the paint. The second is ordinary household cleaning, where the same 140 bar clears paving, fences, garden furniture, and muddy wheel arches.
The Sun Series sits between two extremes in the range. It offers far more cleaning energy than an 850 W domestic car washer, and it avoids the wiring work that a 5.5 kW high pressure cleaner demands. WINGSPAN TECH TAIZHOU CO., LTD. builds it in Taizhou, Zhejiang, China, on the same line as the 380 V three-phase version.
Why a 140 Bar Car Washer Suits Touch-Free Washing
Touch-free results depend on the energy delivered at the paint surface, not on how aggressive the shampoo is. Pressure and flow together decide whether a foam layer lifts in one pass or needs a second one.
What Does 140 Bar Lift That a 90 Bar Unit Misses?
A 140 bar car washer leaves the nozzle at roughly 2030 psi. On a horizontal panel that is enough to shear a 3-5 mm foam layer and the loosened road film beneath it in a single pass. Units under 90 bar usually need two passes over the same panel, which doubles the water used per vehicle.
Flow matters as much as pressure. At 12 L/min the jet covers a wider stripe, so passes overlap less and time per car drops. A foam lance such as the adjustable snow foam gun applies the shampoo evenly before the rinse stage begins.
Where More Pressure Stops Helping
Above 160 bar the gain on passenger cars is small, and the risk is not. Clearcoat is measured in tens of micrometres, and a fan jet held close will mark it at almost any pressure. The regulator on this machine is therefore set to hold 140 bar for bodywork while the pump can reach 160 bar (2320 psi) for flat concrete.
Pressure does not replace dwell time on tar, tree sap, or dried mud. Those respond to pre-soak and contact time rather than to extra bar, which is why the sequence in section six puts shampoo before the high-pressure pass.
Three Kilowatts on a 220V Household Supply
A 3 kW motor on 220 V draws about 13.6 A in steady state. That single figure decides whether a domestic installation can carry the machine, and it explains why the 220 V version is the one most households order.
Circuit and Cable Requirements
A dedicated 16 A circuit with 2.5 mm2 copper cable covers the running current with margin. The machine should not share that circuit with an oven, a water heater, or an air conditioner: simultaneous starting loads trip breakers even when the arithmetic says they fit.
A residual current device rated 30 mA belongs on any outdoor circuit. Water and electricity share the same working area in car washing, and the RCD is the part that keeps a nicked cable from becoming an incident.
When Should You Choose the 380V Version?
Choose 380 V three-phase when the site already has it and when the machine will run for hours a day. Current per phase falls to about 4.6 A, cables run cooler, and the motor tolerates long duty cycles better than a single-phase winding does.
For a household driveway the 220 V version is the practical answer, because it plugs into the supply that already exists. A comparable single-phase unit is the 3000 W AR high pressure washer, and for lighter domestic work the 2200 W domestic power washer covers smaller jobs at lower current.
Pump Head and Trolley on the 140 Bar Car Washer
The specification names the CB pump head, a pressure regulating valve, an autoswitch, and a double inlet filter. Those four items decide most of the day-to-day behaviour of the machine.
CB Pump Head and Standard Controls
The CB head is driven directly at 1450 rpm, so there is no belt to tension or replace. The regulating valve lets the operator drop pressure for soft trim and raise it for concrete without changing nozzles.
The autoswitch stops the motor when the trigger is released. That removes the main wear source on a domestic unit, because the pump stops turning instead of circulating against a closed gun. Spare motors and pump units are listed under pump motor units 1.1 kW to 4 kW if a replacement is needed years later.
Moving the 140 Bar Car Washer Between Vehicles
At 54 kg net and 110 x 49 x 51 cm on its cart, the machine rolls through a single garage door and turns in a normal driveway. The 15 m outlet hose reaches around a full-size car without moving the cart, and the 2 m inlet hose reaches a standard outdoor tap.
Packed size is 73 x 42 x 54 cm at 56 kg gross, which keeps one unit inside normal courier limits and allows two units per pallet for dealers. The same trolley concept appears in the Pallas trolley car washer with a moulded plastic cover.
Sun Series Technical Specifications
| Technical Specifications (220 V single-phase version) | |
| Working Pressure | 140 bar / 2030 psi / 14 MPa |
| Maximum Pressure | 160 bar / 2320 psi / 16 MPa |
| Maximum Flow | 12 L/min / 3.17 GPM |
| Pump Head Model | CB |
| Pressure Regulating Valve | Yes |
| Autoswitch | Yes |
| Motor Power | 3 kW / 4.0 HP |
| Motor Speed | 1450 rpm |
| Voltage | 220 V single-phase or 380 V three-phase |
| Outlet Hose | 15 m |
| Inlet Hose | 2 m |
| Inlet Filter | Double filter |
| Net Weight | 54 kg |
| Gross Weight | 56 kg |
| Product Size | 110 x 49 x 51 cm |
| Package Size | 73 x 42 x 54 cm |
The working point of this 140 bar car washer is self-consistent. At 140 bar and 12 L/min the hydraulic output is 140 x 12 / 600 = 2.8 kW, which sits inside a 3 kW motor rating at about 93 percent efficiency. The 160 bar ceiling corresponds to 3.2 kW, so it is a short-duration maximum rather than a continuous duty point.
Shampoo Pairing for a 140 Bar Car Washer
Garass and WINGSPAN touch-free shampoos are formulated to be sprayed on and rinsed off without agitation. The machine supplies the rinse energy and the shampoo supplies the chemical lift; neither works as well alone. The table below lists what to fit to each stage.
| Item | Role in the wash |
| Garass or WINGSPAN touch-free shampoo | Dissolves road film so the jet can lift it without contact |
| Foam gun / snow foam lance | Applies shampoo as a thick layer that clings to vertical panels |
| Quick-connect nozzle tips | Switches fan width between bodywork and concrete |
| Surface cleaner | Cleans bonnets, roofs, and driveways with an even pattern and no stripes |
| Undercarriage cleaner | Reaches the chassis and wheel arches that a lance cannot angle into |
| Steel braided replacement hose | Extends reach or replaces a worn 15 m outlet hose |
| High pressure washer gun | Spare or upgrade trigger gun for long sessions |
Touch-Free Sequence in Four Steps
- Pre-rinse the lower panels and wheel arches at 140 bar to remove grit before anything else touches the surface.
- Apply Garass or WINGSPAN shampoo from the bottom up with a foam gun, then let it dwell for the time stated on the label.
- Rinse from the roof downward at 140 bar, holding the nozzle about 30 cm from the paint and keeping it moving.
- Finish large horizontal panels with a surface cleaner and the chassis with an undercarriage cleaner, then rinse with filtered water.
Frequently Asked Questions
Answers below refer to the 220 V single-phase version and the specification table above.
Can the 140 bar car washer run on a normal household socket?
On a 220 V supply, yes. The 3 kW motor draws about 13.6 A, so it needs a 16 A circuit. A 10 A lighting circuit will trip under load.
What pressure is actually needed for touch-free washing?
140 bar (2030 psi) at 12 L/min covers passenger cars. Below 90 bar the foam layer usually survives the first pass and a second application becomes necessary.
Can any shampoo be used with this machine?
Use a touch-free formula such as Garass or WINGSPAN. Wax-heavy and hand-wash shampoos are designed for contact washing and leave residue when they are only sprayed and rinsed.
Does the regulating valve allow concrete cleaning as well?
Yes. The pump reaches 160 bar (2320 psi), and the valve sets the working pressure for each task, so bodywork and paving use different settings on the same machine.
How much water does one car take?
Water use depends far more on technique than on the pump. One pre-rinse, one foam pass, and one rinse at 12 L/min is the leanest sequence, and adding a second pass roughly doubles consumption.
What maintenance does the pump need?
Check the double inlet filter before each session, never let the pump run dry, and change the pump oil at the interval in the manual. The autoswitch releases pressure whenever the trigger is released, which reduces idle wear.
Is the 380 V version a different machine?
Same pump, same trolley, different motor winding. Order it only when three-phase power is already on site. Accessories for both versions ship from the pressure washer accessories category.
Browse the rest of the single-phase high pressure cleaner range or the full high pressure cleaner catalogue for units at other pressure and power levels.
