Firma Tropper was founded as a mill construction company in 1938. Company head office was a former contract mill.
In 1993, the first mobile grinding and mixing plant with the original Suction-Pressure System was presented to the public. Important features of this plant are dust-free operation, low feed hopper, electronic mixer weighing without locking, and complete discharge.
This innovative idea was awarded for "Noteworthy Development" at the Agritechnica in 1995.
In 1998, the construction of the first wood pellets silo vehicles with weighing system started.
In 2001, Mag. Johannes Tropper as Managing Director took over, along with his three brothers, the reins of the successful company.
In 2004, Tropper developed its own "On Board Weighing System" for the purpose of weighing transported goods on the transporting vehicle.
In 2005, the next great milestone followed: the MEGA MIX – a mobile grinding/mixing plant with a 12-ton mixer was developed, patented and presented amid much acclaim at Agritechnica in Hannover.
In 2006, Tropper was approved for the Calibration License and can now carries out calibrations in Class III and IV themselves.
The design department has been supported by a high performance CAD program since 2006.
In 2007, the latest MEGA MIX Duo with partition was presented at Agritechnica in Hannover. With this system, two different mixtures can be produced in only one grinding process.
In 2008, construction has begun on 3 production buildings, an environmentally-friendly painting plant as well as the leisure and office building on an area of around 6000 m2. Annual turnover is around € 7.5 million, whereof approximately 75% go in exports to EU member countries. Tropper employs a company size of 58 employees (10 apprentices) and is supported by 10 leasing workers.
In 2009, more Mega Mix mixers, superstructures for the transportation of animal foodstuffs, and wood pellets as well as tip superstructures with a volume of up to 60 m3 with and without weighing systems, were produced at Tropper.