Switzerland 
Poland 
Czech Republic 
Germany 
Spain Bucher HPS presses
Hydraulic filter press for the dewatering of municipal and industrial sludge.
The HPS press was developed for the solid-liquid separation of biological substances. This machine is an effective solution for communal and industrial sludge dewatering. The solid content of a suspension may be between 2 and 10%. For a range of performance requirements, there are several machine sizes available.
High degree of dewatering
Low disposal and drying costs
Reliable process and control system
Self-optimising process operation
Continuous operation without supervision
Minimal labour costs
Minimal maintenance costs
The press is designed as a rotating cylinder piston system with hydraulic drive. Between the end of the cylinder and the piston are flexible drainage elements that are fixed and let the filtrate flow from the inside the press.
The pressing process is composed of various steps, including sludge feeding, dewatering by press-cycling, bulking stages, and filter-cake discharge. A complete pressing cycle lasts between 70–120 minutes, depending on the sludge’s capability for dewatering.
Bucher HPS 3007
Throughput kg DR/h*: 100–200
Filter area: 18
Empty weight in kg: 11300
Filled weight in kg: 14600
Dimensions (L X B x H): 6500 x 2834 x 2550
Power consumption kW*: 10
Bucher HPS 6007
Throughput kg DR/h* 200–400
Filter area 37 Empty weight in kg 18000
Filled weight in kg 24000
Dimensions (L X B x H) 7500 x 3180 x 2835
Power consumption kW* 13
Bucher HPS 7507
Throughput kg DR/h* 250–500
Filter area 47 Empty weight in kg 19000
Filled weight in kg 26500
Dimensions (L X B x H) 8395 x 3180 x 2835
Power consumption kW* 13
Bucher HPS 12007
Throughput kg DR/h* 400–800
Filter area 82 Empty weight in kg 29500
Filled weight in kg 41500
Dimensions (L X B x H) 9950 x 3550 x 3120
Power consumption kW* 18
*sludge dependent