Turn returned concrete back into aggregate and water
Stetter recycling plants wash out returned and leftover concrete at your batching plant, so the stone, sand and water go back into production and not to the dump.
RA 12
A reliable, economical and highly wear-resistant recycling plant that washes concrete out in a reverse-flow drum. Truck mixers discharge what they bring back, and the plant separates it into clean aggregate and reusable water.
- Washes up to 12 m³ of normal concrete per hour
- Separation cut of 0.2 mm
- Flushing water adjustable from 7 to 12 m³/hr
- 2 m³ water capacity in the drum
- Washing drum driven by two 2.2 kW motors, 10.16 kW connected load
An RA 12 installed at a ready-mix plant in the Philippines.
Built into the wash-out bay
The RA 12 sits beside the wash-out area, so truck mixers discharge returned concrete straight into the hopper. The washing drum separates the aggregate, and the water runs to a settling basin for reuse in batching.
Recover the aggregates and sand
Returned and leftover concrete does not have to be waste. The RA 12 recycling plant washes it out, and the sand screener that works with it recovers the aggregates and sand with a rotating trommel screen, ready to go back into production.
- Runs automatically from the RA 12 control system, with no separate operator
- Recovered aggregates and sand can be reused in batching
- Low running cost, quiet operation and easy cleaning
- Screen size can be adapted to the plant and material
The sand screener for the RA 12: a 1 m x 2 m trommel that separates sand from aggregate.
| Model | Washing capacity | Flushing water | Drum water capacity | Connected load |
|---|---|---|---|---|
| RA 12 recycling plant | 12 m³/hr | 7 to 12 m³/hr (adjustable) | 2 m³ | 10.16 kW |
| Model | Output | Trommel screen (dia. x length) | Screen speed | Screen cut size | Max. aggregate size | Drive motor | Footprint |
|---|---|---|---|---|---|---|---|
| Sand screener (for RA 12) | 12 m³/hr | 1 m x 2 m | 21 rpm | 5 mm | 40 mm | 2.2 kW | 3.3 x 1.4 m |
Watch the sand screener at work
Figures are manufacturer data for the standard configuration and may vary with options. Contact us for the full data sheet of any model.
RA 20
The larger model in the range, for ready-mix plants that handle more returned concrete each day. Tell us your daily volume and number of truck mixers and we will confirm the right size.
Stop paying to throw concrete away
Tell us how much concrete comes back to your plant and we will recommend a recycling set-up.