System Solutions
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The SIEBTECHNIK TEMA Decanter centrifuge – solid bowl is a continuously operating solid bowl screw centrifuge in tunnel or pedestal bearing design.
Our decanters are individual, functional and versatile. They offer highly efficient separation of even the finest solids with almost complete clarification of the liquid phase.
Some advantages of our decanters
- Continuous operation
- Wide range of applications in all industries
- Flexible drive concept
- High machine availability
- Minimal maintenance effort
- Long service life
We manufacture decanters tailored to your requirements
The desire for ever lower dirt loads in waste water for the sustainable protection of our environment (ZLD – Zero Liquid Discharge) and the industry’s demand for the highest possible efficiency of production plants make the decanter one of the most frequently used machines.
Whether the smallest or largest throughput rates, lowest or highest temperatures, gas-tight design, chemical resistance or explosion protection – we offer your solution.
Operational safety under all operating conditions, including oil circulation lubrication of all bearings including gearbox and screw bearings, is a top priority for SIEBTECHNIK TEMA Decanter centrifuges – solid bowl.
The low maintenance requirements as well as individual adaptations and design variants make our decanters a unique separation device for almost all separation processes. These include pure separation processes (clarification and dewatering of solids), thickening (compacting) and classification, both in open and gas-tight processes.
How does a decanter work?
Decanter centrifuges – solid bowls are used to separate very fine solids from specifically lighter liquids. The solids sediment within the liquid and are therefore not retained by a sieve element. The solids deposited in the solid bowl are conveyed to the small diameter with a screw and discharged there. The clarified liquid is discharged via an adjustable weir at the cylindrical end of the bowl.
SIEBTECHNIK TEMA Decanter centrifuges – solid bowl operate according to the so-called counter-current principle. This means that the suspension to be separated is fed approximately in the middle of the bowl, the sedimented solids are conveyed by the screw rotating at a differential speed to the bowl in the direction of the small diameter, while the clarified liquid overflows at the opposite end of the bowl.
The height of the liquid level in the bowl and therefore the ratio between the clarifying and drying sections of the bowl can be adjusted. This enables optimum adaptation to the respective separation task.
The differential speed between the screw and drum is realized by a high-performance gearbox. The centrifuge is driven by V-belts as standard, whereby the centrifuge is equipped with a single drive (fixed gearbox input shaft) or double drive (driven gearbox input shaft) depending on the speed combination.
Equipment variants
We build all decanters with bowl inclinations between 6° and 15°, with single or double drive, with hydraulic or frequency converter drive, as two-phase decanters, with various centrate or solids discharge variants.
A double-conical version for separate wash water drainage is also available.
Explosion protection | Inertization
Inerting our machines and systems can be necessary for a variety of reasons. In many industrial processes, it is necessary for safety reasons to reliably prevent the formation of an explosive atmosphere caused by dust or gases (ATEX).
In addition, it may be necessary to seal and blanket product spaces with inert gas, such as nitrogen (N₂) or carbon dioxide (CO₂), to prevent oxidation and maintain product quality.
Take advantage of the decades of cross-industry experience of SIEBTECHNIK specialists in sealing and inerting the process chambers of your centrifuges.
We are happy to work with our customers to develop an inerting concept for the integration of our machines into existing or planned systems.
Hygenic Design | CIP
for processes with the highest hygienic requirements
The name SIEBTECHNIK TEMA is inseparably connected with dewatering tasks under the highest hygienic requirements. The separation of breadcrumbs from frying oil at temperatures of approx. 200°C with the SHORTBOWL decanter centrifuge, the centrifugation of lactose crystals for the production of baby food with the SHORTBOWL decanter centrifuge and the CONTURBEX screen scroll centrifuge or the production of high-purity inorganic salts with our CONTURBEX and pusher centrifuges are just a few examples. Design features include technical separation of the drive and process areas of the centrifuge, advanced sealing systems that are easy to clean by CIP.
To optimize centrifuges for hygienic applications or in areas where CIP must prevent cross-contamination, we use riboflavin tests to verify and optimize cleaning results.
In-house developed and USDA-certified CIP nozzles, in-house developed hygienic fittings, special hygienic surfaces or our sophisticated USDA-compliant sealing technology make many dewatering tasks possible with our centrifuges.
Centrifuge Service
Our reliable service enables optimal operation of your machines and systems
We offer energy optimization, machine monitoring, on-site maintenance & repair service, OEM spare parts, root cause analysis, maintenance & repair kits, inventory analysis, machine history management, personalized technical consulting, training & workshops, 24-hour service, retrofits & upgrades, and used & bridge machines.
STReAM Centrifuges
SIEBTECHNIK TEMA Remote Advanced Monitoring
Your digital module for preventive centrifuge maintenance - with optional cloud connection
Fluid Observer
We have developed an oil quality monitoring system specially tailored to our centrifuges. Reduce downtimes and extend your machine running time with the SIEBTECHNIK TEMA Fluid Observer!
Application list
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- Wood fiber
- Woodchips
- Paper fiber
- Pentaerythritol
- Glauber salt
- Glauber salt – Sodium sulfate decahydrate
- Nickel(II) sulfate
- Carnallite
- Potassium chloride – MOP – KCl
- Potassium sulfate – SOP — Sulfate of potash
- Potassium sulfate (Vinasse)
- Animal waste – Rendering
- Zero Liquid Discharge – ZLD
- Biopolymers
- Polyacrylate
- Polybutylene adipate terephthalate (PBAT)
- Polybutylene succinate (PBS)
- Polyethylene – PE
- Polyhydroxyalkanoates (PHA)
- Polyvinyl butyral PVB
- Styrene-acrylonitrile copolymers SAN
- Cellulose and derivatives
- Urea
- Herbicides – Insecticides
- Insecticide
- Methacrylamide
- Methylmethacrylamide
- Organic salts
- Coal
- Minerals
- Sodium Carbonate – Soda Ash
- Sodium chloride
- Sodium sulfite
- Flavor (Additives – Carriers – Extracts)
- Fermentation mash
- Gelatine
- Vegetables
- Isomaltulose
- Coffee extract
- Coffee grounds
- Lysine
- Melasse
- Monosodium Glutamate MSG
- Sodium bicarbonate
- Evaporated salt – NaCl
- Sorbose
- Bacon rinds
- Sweetener – sugar substitutes
- Vinasse
- Sugar
- NPK-fertiliser
- High density polyethylen HDPE
- Fructose
- Soybean meal from ethanol
- Graphite
- Cannabis extract
- Iron hydroxide
- Ethylene-vinyl acetate EVA
- Expanded polystyrene EPS
- Polymethyl methacrylate PMMA
- Polyoxymethylene POM
- Polyvinyl acetate PVA
- Polyvinyl alcohol PVOH
- Anthracene
- Azelaic acid
- Bisphenol A
- Carboxymethylcellulose CMC
- Dimethyl terephthalate DMT (chemical recycling)
- Dimethyl terephthalate DMT (virgin)
- Hydroxypropylmethyl cellulose HPMC
- Methyl cellulose MC
- Sodium gluconate
- PET recycling (chemical)
- Plastic recycling (chemical)
- Coal from coal washery
- Coal coke
- Coal middlings
- Coal sludge
- Hard coal
- Uranium oxide
- Silver nitrate
- Strontium nitrate
- Fish meal
- Fry oil (breading separation)
- Greaves
- Barley extract
- Lactose
- Grain of maize
- Stillage – Mash (DDGS)
- Chocolate
- Threonine
- Iron powder
- Ferrite sludge
- Gypsum
- Paper coatings
- Silver oxide
- Tar
- Calcium carbonate
- Lithium carbonate
- Wastewater (ZLD)
- Fracking ZLD
- Converter dust
- Waste
- Waste slag
- PVC (recycling)
- Tinder sludge
- Low density polyethylen LDPE
- Polyacrylamide beads
- Polyolefines
- Polypropylene PP
- Polyvinyl Chloride (PVC)
- Carboxylic acid derivative
- Dicarboxylic acid
- Ferrocene
- Hydroxyethyl cellulose HEC
- Nickel formate
- Sulfanilic acid
- Basalt
- FEPA abrasives
- Mica
- Chalk
- Alumina – Bentonite – Kaolin
- Aluminium hydroxide
- Barium carbonate
- Lead(II) sulphate
- Strontium carbonate
- Zinc chromate
- Fish oil – fishbone
- Casein
- Mash
- Mash of Biofuel DDGS
- Soy milk
- Surimi – fish white meat wash water
- Vitamin A
- Potassium formiate
- Boric Acid
Zero Liquid Discharge – ZLD
Water is one of the most valuable resources and water treatment is essential. Learn more about ZLD and the role centrifuges play.
Polyethylene – PE
Polyethylene, or PE for short, is the most widely used thermoplastic in our society and an essential part of modern life.
Sodium Carbonate – Soda Ash
Soda ash is an indispensable part of our daily lives. From cleaning and manufacturing to environmental technology, soda ash is a versatile helper with a wide range of practical applications.
Sodium bicarbonate
Sodium hydrogen carbonate (NaHCO₃) is a fine, white, crystalline powder that is often used as a leavening agent. Due to the fineness of the crystals, our SHS pusher centrifuge is particularly suitable for the post-dehydration of baking soda.
Polyvinyl Chloride (PVC)
Polyvinyl Chloride is a thermoplastic polymer also known as PVC. This versatile material is one of today's most important plastics, internationally recognized and proven in the market.
Boric Acid
Boric acid is an inorganic acid. It is often used as an antiseptic, insecticide, flame retardant, neutron absorber or as a precursor for other chemical compounds.
Gallery
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Decanter DZ 7
Decanter centrifuge DZ for lactose
Decanter DZ 8E for PVC
Decanter HDPE
Gas-tight decanter
Decanter for HDPE
How can we help you?
We have the right solution for every task. And if not, we’ll work with you to find one. Get in touch with us!
Our specialists will be happy to advise you individually on site or remotely, and are available to answer any questions you may have. Send us a message using our
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