Minerals
Precise separation of mineral materialsin just one screening process
In the field of mineral processing, Zemmler screening machines offer decisive advantages. The double trommel technology enables the recovery of three high-quality fractions in just one screening pass, operating efficiently and economically. Impurities are reliably removed, and materials such as sand and gravel, as well as chippings and gravel, are cleanly recovered.
Especially in mineral processing, a particularly fine screening is often required. This can be achieved exceptionally well with double trommel technology: The upstream separation of coarse material in the inner trommel creates a clean cut, enabling precise and efficient fine screening. This also allows for screening down to 2 mm.
Another advantage results from the double trommel design: Compared to a single trommel, a significantly larger Screen area is available, leading to higher throughput and overall cleaner material processing.
Recommended screening product
Sand (2 - 5mm)
Classification and cleaning of sand
Chippings (5 - 15 mm)
Separation by grain size
Gravel (5 - 20 mm)
Screening by grain size for construction projects
Gravel (20 - 50 mm)
Separation by grain size for infrastructure projects
Sand (0 - 5 mm)
Classification of Sand
Typical applications
- Sand
- Gravel
- Chippings
- Gravel
- Railway ballast
- Lime
- Sand
- Clay
- Steinbruch
The Zemmler screening concept

Input material

Fine fraction

Middle fraction

Coarse fraction






