A tunnel car wash machine is a fully automatic assembly-line car wash equipment.

After the vehicle drives in, it is moved forward slowly by a conveyor chain. The vehicle passes through multiple functional sections including pre-rinsing, foam spraying, brush washing, high-pressure rinsing, wax coating and full-body air drying, finishing the whole car wash process continuously like passing through a tunnel.

It features fast washing speed, non-stop operation and large vehicle throughput, widely used in gas stations, large chain car washes and parking lots with heavy traffic.