Stationary Sand Filling Systems


Slim Design For Maintenance Facilies
Railquip sand filling systems with RQsand.max are suitable for use inside maintenance halls or at outdoors
maintenance sites.Thanks to the remarkably slim design, the RQsand.max sand dispensing stations can easily
be integrated into the limited space conditions of maintenance facilities and alongside tracks.



The brake sand is supplied from the storage silo to the individual sand dispensing stations fully automatically and in a particularly gentle conveying process. In order to adapt the operation of the special demands of maintenance facilitities, each sand dispensing station can be activated individually. The automatic air return system carries the dust from the individual filling valves to a central filter located near the silo so that no dust escapes into the working areaor is conveyed into the sand boxes.

The sand dispensing station RQsand.max is constructed in such a way, that it is not subject to regular inspections according to European pressure vessel guide lines.

bulletConceived for particulary limited space conditions, maximum depth 7.9"
bulletAvailable as stationary or suspended, as single pipe, twin pipe or Y- shape models
bulletSand supplied from above, from below or from each side. Flexible connection.
bulletInlet head with special expansion disc valve and return of dust to the exhaust system.
bulletOne or two filling hoses per sand dispensing station.
bulletVelocity of sand within the filling hoses less than 0.25 m/s.
bulletThe conveying air is extracted and returned to the exhaust system. In order
to ensure the dosing of sand, free dust is not conveyed into the sand boxes.
bulletPressure vessel is not required to be monitored.

(1) Pneumatics conveyor to supply sand to the individual sand dispensing stations.Gentle
conveying process, low consumption of compressed air.

(2) Flexible connection. Optimally adabtable to the conditions at site.

(3) Advanced control technigue. ISO - base plate valves. Compact, protected.

(4) Arrangement of pipes including conveying pipe, copressed air pipe, exhaust pipe,
cable conduit. Compact, space - saving.

An SPC - controlled switch and control system, equipped with a luminous circuit diagram or a screen
monitoring system, ensures the save and automatic functionof the entire system.

The extraction of the conveying air is ensured by a special injector system. Individual for each filling valve. Effective, safe, wear - resistent.
Integrated dust extraction. Ergonomical, selfarresting, no sand spills on the floor.

Dust Disposal - Sand Storage - Sand Transport

For health reasons it is recommended to dispose of lung piercing silica dust at only one point of the sanding plant. The automatic air return system carries the dust from the individual filling valves to a central filter by means of aspecial injector system Here, the dust can be disposed of without harming the environment.
The sizes of the sand storage silos are customized according to specific customer requirements.



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