Decanter, built to each customer’s specifications.
Tekno4 builds new decanters, tailored to each customer’s needs, used to separate a solid from a liquid by mechanically accelerating the natural decanting process, based on the difference in specific weight between the two elements.
Automatic process control, from feed to discharge
The process is managed and controlled by a PLC, installed inside the electrical panel, which continuously monitors the machine’s status and automatically adjusts the working parameters based on the physical variations of the product. The operator interface is a touch screen panel, for easy data input.
Feed
The product enters the bowl through the central feed pipe.
Bowl rotation
The bowl rotates at high speed, using centrifugal force to separate the product.
PLC control
The PLC monitors the machine’s status and automatically adjusts the parameters.
Differentiated discharge
Clarified liquid and dewatered solid are discharged separately.
The decanter, up close



Every project followed in detail
Tekno4’s engineering department follows the analysis, design and execution of every single job in detail, based on each customer’s requirements. We handle the mechanical design of new decanters and the design of the control software, as well as the manufacturing of the related electrical panel.
What Tekno4 provides
- New decanters designed to customer specifications
- Automatic centrifuges and mobile units
- Repair and refurbishment of decanters of any brand
- Dedicated electrical panel and control software
VGA and P series
The difference between the VGA models (Automatic Differential Speed Variation) and the P models (Proportional) is that on the VGA the differential speed is adjusted automatically, while on the P models the differential speed is fixed.
| VGA series | |
|---|---|
| Differential speed control | Automatic |
| Flow rate | XX m³/h |
| Bowl diameter | XXX mm |
| Control | PLC + touch screen |
| P series | |
|---|---|
| Differential speed control | Fixed |
| Flow rate | XX m³/h |
| Bowl diameter | XXX mm |
| Control | PLC + touch screen |
* Effective flow rate calculated with a slurry weight of 1.2–1.3 kg/l. Flocculant efficiency tested with the actual product to be treated. Reference solid component: “wet clay soil”, specific weight 2300 kg/m³.
We refurbish decanters of any brand, across nine sectors
Tekno4 can supply centrifuges and automatic mobile units, and repair and refurbish decanters of any brand across a wide range of application sectors.
Water & Environment
- Wastewater treatment and sludge dewatering for municipal treatment plants
- Refinery water treatment & soil washing
- Water treatment and recycling for the mining and quarrying sector
Food & Livestock
- Treatment for the food processing and canning industry
- Treatment and recovery of by-products from industrial slaughtering
- Treatment of livestock wastewater
Energy
- Digestate recycling from anaerobic digestion for biogas production
Chemical & Tannery
- Treatment of by-products from tanning and wool washing
- Separation and recovery of salt crystals in the chemical industry
Let’s talk about your separation process
New decanter, repair or refurbishment: tell us about your case.
