No filter mesh
The gap between moving parts does the filtering. No cloth or mesh prone to clogging.
Technology
Four core concepts
Four core concepts
behind the technology.
Both solutions separate solids from water without a filter mesh. Everything else follows from this concept: low speed, low power consumption, low rinse water consumption.
Self-cleaning geometry
Neighbouring parts move against each other every revolution and keep the filtering gap open.
Low-speed mechanics
Slow rotation: wear-free structure, low vibration, low noise.
Energy and water
0.1 to 5.15 kW installed. Rinse water measured in litres per hour, not cubic metres.
In detail
Four core concepts
Four core concepts
behind the technology.
01
Filtration without a medium
The filtering surface is the calibrated gap between stacked rings or between rotating oval discs. Solids bridge across it, water passes through it.
- Nothing to clog, so capacity does not fade between cleanings
- Handles fat, hair and fibre that clog wedge wire
- Sludge from 2,000 to 50,000 mg/L on the same machine
02
Self-cleaning geometry
On the screw press the free rings ride with the screw; on the separator the oval discs turn in sync. Either way the two surfaces forming the filtering gap never stop moving relative to each other.
- No backwash pump, no clean-water line, no nozzles
- Service water at 2–3 bar, no high-pressure line
- Rinse water from 32 L/h on the smallest press (BTECH-201)
- No filter media in the spares list, ever
03
Low-speed mechanics
The screw turns at 2 to 4 rpm. That keeps vibration and noise low and takes out most of the wear that makes a centrifuge a maintenance item.
- Wear-free structure, installs on a flat floor
- Quiet enough to sit indoors next to people
- Fully automatic: unattended nights and weekends
04
Energy, water and cake
Small motors, litres of rinse water, and a cake dry enough to shovel. The running cost is the argument for replacing a belt press or a decanter.
- 0.1 kW on the smallest screen, 5.15 kW on the largest press (BTECH-404)
- Cake at 20% dry solids and above
- Replaces belt press, decanter centrifuge or filter press
Specific consumption 0.01 to 0.1 kWh/kg DS: about one eighth of a belt press and one twentieth of a decanter centrifuge.