I. Core Types and Structures

1. Gantry Reciprocating (Rollover)

Structure: A gantry with 2 side brushes + 1 top brush. The vehicle stops and stays stationary while the gantry moves back and forth along rails to wash.

Dimensions: Washing height 3.5–4.5 m, width ≤ 2.6 m, unlimited length; footprint approx. length 6–8 m × width 4–5 m.

Efficiency: 3–5 minutes per vehicle, suitable for depots with compact space and up to 50 washes per day.

2. Tunnel (ThroughType)

Structure: Fixed arches + multiple groups of side/top brushes (3/4/5/6 brushes). Vehicles drive through slowly at a constant speed for assemblyline operation.

Dimensions: Length 10–15 m × width 4 m × height 3.5–4.2 m; washing height 3.5–4.2 m, width ≤ 2.6 m.

Efficiency: 1–2 minutes per vehicle, 30–80 vehicles per hour, suitable for bus terminals and large fleets with highfrequency washing.

II. Core Control System (PLC)

Main Controller: Mitsubishi FX3U / Siemens S7 series PLC with touch screen, supporting automatic, manual, and remote modes.

Sensing: Photoelectric switches + length sensors + liquid level sensors – automatically identifies vehicle type, locates the body, and provides anticollision protection.

Actuation: Highpressure water pump (70–120 bar), foam pump, variablefrequency brush motors, highpower drying fans, undercarriage rinse nozzles.

Program: Standard sequence: prerinse → foam → brush wash → rinse → liquid wax → air dry; customisable fast / standard / deep cleaning modes.

III. Cleaning Performance and Key Advantages

1. Cleaning Performance

Full coverage: Side brushes + top brush provide threedimensional envelopment, leaving no dead spots on sides, roof, front/rear surrounds, wheel arches, and lower skirts; optional highpressure undercarriage rinse.

Dirt removal: Flexible foam or imported FAVAGROSSA bristles – soft yet wearresistant, effectively removing insect residue, tree sap, oil stains, and mud without damaging the original paint.

Drying: Multiple highpower air knives (15–30 kW) with contourfollowing blowing – removes over 95% of surface water droplets, minimal residue in gaps, no need for manual touchup.

Protection: Even coverage of liquid wax, enhancing paint gloss and providing lasting hydrophobic and dustrepellent properties.

2. Key Advantages

Efficient and laboursaving: Fully automatic process, only one attendant needed, greatly reducing labour costs.

Designed for large vehicles: Dedicated washing space of 4.2 m height and 2.6 m width, compatible with all types of buses/coaches.

Durable and rustproof: Entire machine hotdip galvanised + Dupont powder coating, corrosion resistance for 15–20 years, suitable for humid outdoor environments.

Energysaving and ecofriendly: Water recycling (90% reuse) + variablefrequency energy saving – water consumption of 150–200 litres per vehicle, low operating cost.

Safe and intelligent: Automatic avoidance of rearview mirrors / roof racks + triple photoelectric anticollision + emergency stop, protecting both vehicles and equipment.