History

1988	Company formation Specialisation in submersible mixers for agriculture and water treatment technology
1989	"Kanalmulch": Use of self-propelled submersible agitators for purging sewers (the agitator pulse is used for propulsion)
1989	Venting attachment for submersible mixers for the aeration of slurries and sludges
1990	All-stainless-steel submersible TRV agitator - this is the first of its kind in the world. Explosion-proof submersible mixer with ATEX approval
1991	Compressed-air driven submersible agitators for mixing in containers in chemical applications (explosion protection zones)
1991	Submersible centrifugal pump TKP for thick slurries
1992	Low-speed submersible mixer ATP from 0,75 bis 5,5 kW with propeller diameter up to 2800 mm, all-stainless-steel
1994	BIOBULL® with large propeller diameter used in a biogas plant for the first time
1995	Submersible mixer for paints (used at VW Emden among others). Frequency converters for energy-saving operation of agitators with large propeller diameter
2000	Municipal digester agitator
2005	Vertical agitators for biogas plants
2006	Horizontal agitator for biogas plants BIOSUBSTRATOR®
2007	Vertical agitator for smaller heat exchangers
2008	Gas-tight adjusting device for submersible mixers in biogas fermenters
2010	Relocation to Pettermandstraße. Agitator with integrated solid feeding system