/// Products · Application-specific bioreactors · Microalgae
Vertical column photobioreactors
A line of vertical column photobioreactors for microalgae and cyanobacteria cultivation, from laboratory screening to pilot and industrial production. From 50 to 1000 L.
A hybrid design: a high-transmittance acrylic cylindrical body, to maximise light penetration and photosynthetically active radiation, on a 316L stainless steel flanged base. Modular architecture sealed with O-rings: it comes fully apart for cleaning and maintenance.
50 – 1000 L Optical acrylic · 316L Airlift · PAR LED
/// Data
Dimensions and footprint
Dimensions in millimetres unless stated otherwise. Every size keeps the fluid dynamic proportions of the 300 L baseline.
| Mechanical parameter | 50 L | 100 L | 200 L | 300 L (ref.) | 500 L | 1000 L |
|---|---|---|---|---|---|---|
| Nominal volume | 50 L | 100 L | 200 L | 300 L | 500 L | 1000 L |
| Tube internal diameter | Ø 310 | Ø 400 | Ø 520 | Ø 598 | Ø 700 | Ø 880 |
| Acrylic tube thickness | 4 mm | 5 mm | 6 mm | 8 mm | 10 mm | |
| Acrylic tube height | 750 | 900 | 1100 | 1300 | 1500 | 1900 |
| Stainless steel base diameter | Ø 500 | Ø 620 | Ø 780 | Ø 890 | Ø 1020 | Ø 1250 |
| Stainless steel base height | 250 | 300 | 350 | 400 | ||
| Total system height | 1000 | 1150 | 1400 | 1600 | 1850 | 2300 |
| Acrylic lid thickness | 10 mm | 12 mm | 15 mm | 20 mm | 25 mm | |
| Lid main inlet port | Ø 100 | Ø 150 | Ø 200 | Ø 250 | Ø 300 | |
/// Technical data
Construction and auxiliaries
01
Stainless steel base
- Material: AISI 316L stainless steel for all fluid-wetted metallic components.
- Finish: mirror-polished interior with Ra < 0.8 µm roughness, to reduce cell adhesion and scaling and to ease clean-in-place.
- Sealing: custom-machined groove housing a high-performance O-ring, engineered for stress-free tube decoupling during maintenance.
- Drain: centrally located 1" (DN25) ball valve on the dished flange, for 100% system drainage.
02
Optical column and reactor head
- Cylinder: optical-grade PMMA acrylic tube with enhanced UV resistance, compatible with industrial surface disinfectants.
- Lid: removable heavy-gauge acrylic top plate with a flanged central inspection and accessory window.
- Modular architecture sealed with dedicated O-rings: quick, complete disassembly for cleaning, autoclaving and maintenance, removing biofouling risk.
03
Ports and process interface
- Bottom drain: 1" ball valve across the whole range.
- Inoculation port (optional): 1" sanitary quick-connect on the stainless base, for aseptic inoculation of the starter culture.
- Quick fill port (optional): 2" sanitary tri-clamp or flanged intake on the lid, for fast media, water and nutrient replenishment.
04
Modular auxiliaries (optional)
- Gas injection sparger: bottom fine-bubble diffuser for air and CO₂, engineered to induce a stable airlift loop: pneumatic mixing, with no shear stress on fragile algal cell walls.
- Gas exhaust relief valve: automated or manual, evacuates the oxygen produced by photosynthesis and stabilises inner pressure during intensive sparging.
- Load cell kit: high-accuracy cells beneath the leg anchor plates, for continuous gravimetric mass and volume recording.
- External LED lighting: wrap-around or semi-cylindrical arrays with targeted PAR spectrum, customisable red/blue ratio and digital dimming modules.
/// Get started
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your microalgae culture
Strain, light spectrum and production scale: we choose volume and auxiliaries together.