We offer you technically mature solutions for the mixing of substrates from small plants (75kW) up to plant sizes in the MW range.
The consistent focus on the development and construction of agitators for agriculture and the biogas sector allows us a high vertical range of manufacture. This not only results in sophisticated products, but also enables us to respond to the individual needs of our customers at an early stage.

WE MAKE STIRRING BETTER !
The agitator is the most important component in biogas technology. It is the “heart” of an anerobic digestion plant.
Whether it is for the digester, secondary digester or the end storage tank – the right mixing technology must be able to deal with an extensive range of feedstocks. It must be able to stir fibre rich feedstocks with a high DM content. It must also be able to cope with waste from agriculture, general refuse and
industry.
Whether you are constructing a new plant or repowering an existing one – Peters will plan the mixing system with you, so that it is perfectly suited to your needs and the demands of your feedstock.






The digester feed has a key role to play in biogas plant performance. Our „ECO-DOS R“ solids feeder is available in four modular versions.
Thanks to its corrosion and acid-resistant interior lining it is extremely durable. It can operate forwards and backwards and is suitable for side or rear loading. It can be interfaced with the plant central control system via a PLC control. The „ECO-DOS R“ is also available with a weighing device.
This feeder has very low energy requirements.
Your benefits

The defining characteristic of Paddle mixers is that they mix slowly and evenly.
This means that the bacteria in the mix is constantly fed, thus promoting the undisturbed anerobic breakdown of the biomass.
Paddle mixers are especially suited to challenging feedstocks and those with a high concentration of dry matter.
The paddles ensure that the digestate is mixed thoroughly, thus fully homogenising any floating or sinking layers. Our EXCENTRO V paddle mixer has already proven its high level of efficiency in numerous plants.
Technical details

Based on this sophisticated and highly reliable technology Peters have developed the EXCENTRO S paddle stirrer.
Just like its partner system, its special advantage is that all of the maintenance and replacement work on the EXCENTRO S can be carried out without emptying the digester.
Now this even applies to digesters with flexible gas storage instead of concrete covers. For operators this means the minimum amount of downtime for the plant.
The EXCENTRO S also has a gear reducer motor with an output of between 7.5 and 15 kW. High quality and robust materials guarantee smooth low-maintenance operation.The full diameter of the system is 3 m and the length is between 5 and 10 m. The EXCENTRO S not only ensures optimum efficiency in new plants, it can also be installed to upgrade existing plants.
Technical details




Our powerhouse the FERMENTO comes in six different performance classes from 7.5 kW to 22 kW.
It is installed into the side of the concrete lid, in a mounting frame which is embedded in the concrete. It can be easily de- and re-installed for maintenance work or retro-fitted into the digester. It is suitable for steel or concrete tanks.
The FERMENTO rod mixer is installed laterally and can be easily removed and re-inserted for maintenance. It is suitable for steel or concrete tanks and can be mounted in the wall or cover. For steel tanks there is a special support available. The mixer can be adjusted easily and efficiently via a manual, hydraulic or electric height control mechanism. Our FERMENTO rod mixer is available in different versions.
Technical details




Based on our decades of experience in the manufacture of agitators for agriculture and biogas plants, we have developed our "Methabolix" power package.
It can be installed laterally into the concrete wall, from above through the concrete ceiling or over the roof frame "Methabox". The installation can also be carried out with the tank filled.
As with all Peters agitator systems, maintenance or repair can be carried out conveniently, as the agitator can be removed without emptying the fermenter. The agitator Methabolix is not only an option for new plants, but also for the extension of existing plants.
Technical details




The Methabox® system is a built-in option for flexible gas storage, such as air-supported roofs and has been specially developed for flexible gas membranes.
Air-supported or foil roofs are often used as flexible biogas storage and gastight silo covers for biogas plants. These roofs are usually made of a PE film and an outer weather protection film made of PVC. The new Methabox system from Peters Mixer is easy to install into these air-supported roofs on biogas plants. The stainless steel frame is shaped so that the film can fit around it perfectly. At the same time the tarp between the two sheets is pulled taut, both for the double and single membranes. Thanks to the curves, stress points are avoided.
As with all stirring systems from Peters, maintenance and repairs can be carried out easily as the agitator (EXCENTRO) can be removed without draining the digester. The Methabox system is not just an option for new plants, but also for the expansion of existing plants.
Technical details
Methabox S:
Suitable for the installation of Excentro S, Fermento and Methabolix
Frame width : 3430 mm
Frame height : 1040 mm
Frame depth : 1390 mm
Weight : ca. 530 kg
All parts in connection with gas: stainless steel A4
Methabox L:
Suitable for the installation of Excentro S, Fermento and Methabolix
Frame width : 4470 mm
Frame height : 1200 mm
Frame depth : 1600 mm
Weight : ca. 800 kg
All parts in connection with gas: stainless steel A4

Our powerful, low maintenance, easy to install SLE electric mixers (11kw, 15kw, 18.5kw, 22kw) achieve optimal mixing of the slurry through daily use. They also maximize yield when pumping out the slurry cellar and ensure uniform spreading of the manure. The drive unit is located outside the slurry in a sealed, fully galvanized housing, this means that it is completely protected from external weather conditions.

Our powerful, low maintenance, easy to install SLE electric mixers (11kw, 15kw, 18.5kw, 22kw) achieve optimal mixing of the slurry through daily use. They also maximize yield when pumping out the slurry cellar and ensure uniform spreading of the manure. The drive unit is located outside the slurry in a sealed, fully galvanized housing, this means that it is completely protected from external weather conditions.
Technical details
with fully automatic or manual controls (soft-start, suction pressure, digitized controls) also suitable for exterior use.

FLEXIBLE AND PRACTICAL
The wall-mounted SLE electro mixer guarantees a thoroughly regular mixing of the slurry in an open pit all year round. This can be equipped with a manual or hydraulic hight adjustment mechanism.
Your benefits
Technical details

FLEXIBLE AND PRACTICAL
The telescopic hitch or front-loader hitch (available for a wide range of models) make the electric mixer suitable for use in open slurry pits, digesters or biogas plants.
Technical details

The SLT slalom mixer for tractor drive is particularly suitable for small circuits (100 m).
The agitator is permanently installed and can be fitted with a bi-directional or angular gearbox as required. A retrofit to electric drive with gears is also possible.
The special shape of the stainless steel Peters propeller and the adjustable counter blade ensure optimal chopping and homogenisation of slurry that contains straw
Technical details
Electric drive can be retrofitted at any time on request!

Our powerful, low-maintanence STD mixer, with a three-point hitching system and hydraulic cylinder is especially suitable for smaller spaces. Due to its characteristic mobility and flexibility it has a whole host of applications.
The STD is available with a variety of mixing tanks. A switching mechanism (suction input/pressure output) or an electric motor for automatic stirring are also available for the STD.
Technical details

The V2A stainless steel mixing paddles and counter blades in the LA6 make short work of shredding straw in sediment layers.
The specially developed bearing seal with oil bath lubrication is perfect for medium to large open pits and lagoons. Electric drive of up to 22 kW is also available.
The STS version makes it easy to swing the mixer into pits with a small opening (80 x 80cm). Also available with a hydraulic swivel arm and bi-directional gearbox.
Technical details
Optional extras

The Jumbomix is a fully hot-dip galvanized slurry agitator equipped with a high-performance pressure propeller made of reinforced stainless steel as standard. It is the ideal choice for large open pits.
As it is particularly robust and designed for high-performance stirring it needs tractor
power of at least 120 bhp. The agitator blades are specially designed to easily shred and stir large quantities of slurry. A counter blade made of stainless steel finely chops straw and other fibers in the mix.
All wear and tear parts can be ordered as kitsand can be replaced quickly and easily.
Using extensions the frame can be extendedup to 13m.
Technical details

A Jumbo mixer JU7 with a frame extension is perfect for reaching over a wall or mound.
The frame extension with quick-coupling for the lower link is available in three lengths: 3m, 4m and 5m. These can be fitted to a Tractor mixer to create a machine that is up to 13m long. It can also be fitted with a double cylinder.




The agitator type STS Combimix is ideal to be inserted into small pit openings (80 x 80cm) thanks to its pivoting device.
The agitator is optionally available with hydraulic swivel device and change-over gear.
Technical details
Optional extras




The SPS Combimix is the ideal agitator for mixing slurry in raised tanks or difficult to access slurry pits.
Thanks to the combination of two double-acting cylinders and a t-gearbox this mixer can be used in different positions.
Technical details




The unique kinematics on this mixer make it possible to swivel up to 170° without having to get off the tractor or reclamp the cardan shaft.
The SPX Combimix is suitable for use in a raised slurry tank or in slurry pits that are difficult to access.
The combination of a double-acting hydraulic cylinder and a swivel gearbox that was specially designed for this mixer make it possible to use it in many different positions.
The mixer can be easily controlled from the tractor. This particularly robust machine is a powerful mixer and needs to be fitted to a tractor with at least 150 bhp. The swivel gearbox is protected from overload by a slip clutch.
Thanks to the specially developed stirring blades, the mixer can stir and chop very large quantites of slurry. A stainless steel counter blade keeps the rotor blades clean.
Technical details