Novaferm AB develops, manufactures and markets, complete fermenter systems for use in laboratory and industrial applications.

If you need a customized solution in the field of biotechnologies, Novaferm is the ideal partner to find the solution that suits your specific needs. Vi are active in Pharmaceutical. Nutraceutical, Food Biotechnologies, Milk and Dairy Farming, Chemicals and general Process Plants.

Sunday, 27 January 2013 14:49


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Production fermenter designed with special features for work under aseptic conditions. It is equipped with magnetically coupled agitator, flat turbine impeller that easily can be changed e.g. to marine type propeller. The aeration system allows air flows of up to 2 VVM. Electrode and sample ports are placed in side and in the top cover. Sight glass in top cover. The sparger is easily exchangeable or removable for different methods of aeration. The vessel can be provided with central draft tube. To facilitate cleaning and preparation, the fermenter is mounted tiltable on a movable stand.

Piping and Control Unit

The fermenter is provided with a piping and control system enclosed in a stainless steel, floor standing cabinet or mounted in an open frame.

In the closed cabinet type the lower part of the cabinet contains valves, circulation pump, heater etc. to conduct gas, steam and water for sparging, sterilisation and temperature control during the process.

The gas flow can be set with a manually operated valve and is monitored by a mechanical flow meter. The system may optionally include electronic flow measurement of the gas flow and regulation through the Novaferm computer control system by sensor and control valve in the gas inlet line.

Sterilisation, cooling and fermentation temperatures are controlled by solenoid and pneumatically operated valves, circulation pump and heater governed from the computer control system. Manometers at the front indicate the pressure of the connected media.

The electric cabinet is placed at the upper part of the piping system and contains the electric components, the Novaferm Fermenter Control System and additional instrumentation. The cabinet is provided with fan for forced ventilation.

All connections of supply media are placed at the rear of the bottom frame.

Control Unit

The system is provided with the Novaferm Fermenter Control System for direct digital control of fermentation processes based on programmable logical controllers from the SIMATIC S7 (Siemens) family. The modular concept allows control of fermenter systems from laboratory to industrial scale.

The standard control system includes hard- and software for control of temperature, speed and pH and measurement of dissolved oxygen. As an option dissolved oxygen can be cascade controlled by agitator speed and air flow. Additional parameters can be supplied on request. PC hardware is not included in the standard package.

Sensor Kit

The standard kit contains the following:

  • 2 pcs Pt100 sensors with cables and connectors
  • 1 pce Inductive sensor with cable and connector
  • 1 pce pH sensor (Mettler) with cable and connector
  • 1 pce pO2 sensor (Mettler) with cable and connector
  • 1 pce Foam sensor with cable and connector

Additional sensors on request.

Pump Unit

Peristaltic pump for dosing of acid, alkali or other addition. Fix speed pump. Including glass container, tubing, sterile filter and needles. Container, hose and needles to be sterilised in autoclave. Delivered with silicone hose diameter 6,4/3,2 mm.

Technical Specification, Fermenter Vessel, 420 L

Material: Acid resistant stainless steel equal to AISI 316L
Working pressure: 3 bar overpressure and full vacuum
Conditioning, vessel interior: Ground, grit 220, polished
Conditioning, vessel exterior: Ground, grit 180, polished
Bottom: Dished, with agitator

Material: Acid resistant stainless steel equal to AISI 316L
Working pressure: 3 bar overpressure and full vacuum

Material: Acid resistant stainless steel equal to AISI 316L
Conditioning: Ground, grit 220, polished
Dished, diam. 450 mm, with six clamps.

Material: Stainless steel
Conditioning: Ground, grit 180, brushed
On wheels, with tilting possibility.

Bottom mounted, magnetically coupled. Torque 48 Nm, power 4,5 kW, speed 0-1000 rpm. Impeller, flat turbine, 6 blades. Other powers on request. Tungsten carbide bearings.

Material, packings and seals: EPDM

Connections in lid: Sight glass, diam. 80 mm
Connections in top: 8 pcs E-connections, diam. 25 mm
Connections in side, upper level: Gas inlet, gas outlet
Connections in side, lower level: 5 pcs E-connections, diam. 25 mm
Connections in bottom: 1 pce temp. sensor pocket, diam. 6 mm
Bottom valve for aseptic drain
Connections in jacket: TC-clamp flanges

Material: Acid resistant stainless steel equal to AISI 316L
Single nozzle below impeller. Multi nozzle, ring type etc. on request.

Material: Acid resistant stainless steel equal to AISI 316L
With 4 baffle plates. Detachable.

Pt 100 pocket
Material: Acid resistant stainless steel AISI 316L for Pt 100 sensor

Sterile filter
Heated filter housing. Capacity 600 l/min, incl. filter cartridge glass fibre deep filter type, or 0.22 µm hydrophobic PTFE filter cartridge.

Sampler in acid resistant stainless steel equal to AISI 316L. In situ sterilisable
Rubber septum connector with 7 holes
Stainless steel wire reinforced PTFE-hoses for connection of jacket to steam/condensate and water/drain, aeration and filter jacket to steam and drain
Sight glass illumination
Seal kit
Tool kit

Total volume 420 l, working volume approx. 300 l

H=2000 mm, W=850 mm, L=1100 mm
Vessel diam.=650 mm
Weight, approx. 350 kg

According to the Swedish Code for pressure vessels

Technical Specification

Piping and Control Cabinet for Fermenters 420 L

Cabinet: Stainless steel
Tubing: Stainless steel
Components: Stainless steel, brass/gunmetal

As per Swedish regulations for electrical installations. Electrical parts splash protected, mainly IP54.


Conn. No. 15
Max. consumption 5 l/min free air

Conn. No. 20
Max. consumption 600l/min free gas

Conn. No. 20
Max. consumption 50 l/min

Conn. No. 20
Rec. min capacity 150 kg/h

Conn. No. 25
Max. capacity 60 l/min

Voltage (see below)
Max. consumption 10 Kw

Gas filter, in
Conn. No 20

Gas filter, out
Conn. No. 20

Vessel jacket, up
Conn. No. 20

Vessel jacket, down
Conn. No. 20

All connections for inlet supplies media are provided with female pipe thread type BSP.


Pressure 4-6 bar
Dry, particle free

Pressure 2 bar
Dry, oil free, particle free

Pressure 2-4 bar
Particle free, max. temp. 5o below min. vessel control temp

Pressure 2 bar
Dry, saturated, particle free

Free flow

Voltage 3x380V+N+G, 50 Hz
Transient free, voltage stability +-5%

Height=2000 mm, Width=630 mm, Depth=820 mm
Weight, approx. 200 kg

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Novaferm AB Gjuterivägen 6M,  SE-31132 FALKENBERG SWEDEN