Rail vehicles often require the backfilling of sand used to improve traction and braking performance. Traditional methods are time-consuming and labor-intensive, and the spilled residue is harmful to health and the environment.
Aquafrisch supplies automated equipment that allows a single operator to refill sand tanks through dispensers. The sand is stored in a silo and distributed directly to the train tanks through a fixed installation or by means of a mobile filling vehicle.
Sand can be supplied to the silo directly by tanker trucks. In this case, the truck is equipped with a pressure group to feed the silo. In cases where the silo cannot be supplied by truck, we recommend the bag feeding system, which is loaded into an auxiliary pneumatic group to feed the silo.
Fixed sand dispensers
Fixed installations have local dispensing points located along a service track, so several train sand tanks can be filled consecutively. The operator simply places the dispenser in the train’s sand tank and opens the flow valve. When the tank is full, the sand covering the dispenser will automatically stop the flow.
The range includes a silo in which the sand is stored prior to distribution to the bogie tanks.
Mobile sand dispensers
For greater flexibility, we supply mobile sand dispensing systems, installed on trailers or electric vehicles.
This system has a storage tank that is loaded pneumatically and directly from the silo, allowing the sand to be easily transported and dispensed to each tank on the train, using a roll-up hose and gun.