- About us
The stone separator Stonefex removes stones and inert items reliably and very effectively from biomass fuels. A patented system of pressure and suction blowers generates exactly the right air flow in the expansion chamber to remove stones and heavy objects from wood.
The outcome is a fuel nearly free of stones which can be sold at a higher price. Furthermore fractions that were previously unusable due to their high amount of stones can now be processed into fuel.
The Stonefex improves fuel quality by removing more than 90 percent of stones and insert materials. Biomass processors profit from better customer acceptance of their fuels, higher sale prices, and the ability to make a saleable product from material contaminated with stones
The input material is loaded onto the intake conveyor. In the expansion chamber, a patented system of pressure and suction blowers separates the material into a stone fraction and a cleaned usable fraction, which conveyors take out to opposite sides. Fines and any light materials are collected in the container downstream of the suction fan.
The input material to the Stonefex is usually a usable biofuel fraction with a particle size from 10…20–150 mm for example:
The single-axle trailer configuration makes the machine easy to manoeuvre, and it is approved for 80 km/h road speeds, so transportation to the site is no problem. The standard version of the stone separator uses grid electrical power. As an option, a diesel generator is available.
|Engine [-]||Perkins-Industrie-Diesel engine Stage V/T4F
|Diesel generator [kVA]||30
|Electrical power input [kW]||-|
|Filling width (mm)||1200|
|Filling height (mm)||3150|
|Pressure blower [kW]||7,5
|Suction fan [kW]||11
|Weight (Dependent on equipment)|
|Max. throughput (Dependent on material)|
|Max. discharge height (mm)||2500 (3700 Option)
|Dimensions (Transport / Working)|
|Trailer [mm]||8300 x 2550 x 4000 | 8300 x 7500 x 3700
We’ll show you how to optimize your processes, based on our experience and extensive data analyses.
Expert technicians are on-site quickly to make sure your machines keep running.
Intelligent stocking for the fast, economical provision of highquality spare parts.
From individual mobile machine to complex stationary system, from us you get the right process solution.
App and integrated monitoring let you keep an eye on operating data and economy.
Our maintenance and service agreements, as well as extended warranties, are aligned with your needs.