Filtration & Drying Systems

ANFDs

An Agitated Nutsche Filter Dryer (ANFD) is a multifunctional equipment used for solid–liquid separation, filtration, washing, and drying in a completely enclosed, sanitary, and safe environment.
It combines the operations of a filter, filter-washer, and dryer in a single unit, eliminating manual handling and ensuring contamination-free processing.

ANFDs are widely used in:

API & Pharma intermediates
Fine chemicals & dyes
Agrochemicals
Specialty chemicals
Highly toxic / sensitive compounds

Key Functions of ANFD:

✔ Filtration
✔ Cake Washing
✔ Vacuum Drying
✔ Automatic Cake Discharge
✔ Solvent recovery

ANFDs can be designed for sterile, GMP, and explosion-proof (FLP) environments.

A. Construction & Material

Parameter	Typical Specification
Material of Construction	SS316 / SS316L / Hastelloy C22 / MS Rubber Lined
Capacity	50 L to 10 KL
Design Standard	ASME Sec. VIII Div. 1 or cGMP
Filtration Area	0.1 m² to 8 m²
Jacket	Steam/Hot water/Thermic fluid

B. Mechanical & Process Design

Parameter	Specification
Design Pressure	Full vacuum to 3–6 kg/cm²
Design Temperature	-20°C to 200°C
Agitator Type	Multi-arm agitator with variable speed
Agitator Movement	Up/Down hydraulic lifting + rotation
Agitator Seals	Single/Double mechanical seal with thermosiphon
Heating Surface	Bottom dish, side jacket, and agitator(optional)
Filtration Media	SS sintered plate / perforated plate + cloth

C. Operating Features

Feature	Description
Filtration	Slurry charged; solid retained on filter plate
Cake Washing	Uniform washing by agitator movement
Drying	Vacuum drying with heated surfaces
Discharge	Automatic discharge via bottom discharge valve (BDV)
Solvent Recovery	Through condensers & receivers

D. Nozzles & Accessories

Charging nozzle / manway
Vent/filter nozzle
Sight glass with light
Bottom discharge valve (Hydraulic/Manual)
Temperature probe
Pressure gauge & safety valve
CIP spray ball (for pharma)

E. Optional Features

cGMP internal mirror finish (Ra 0.4 µm)
Hastelloy construction for corrosive service
PLC/SCADA automation
Vacuum-rated design
Flameproof motor & panel
Nitrogen blanketing
Load cell integration
Sintered filter plate for full containment

A. Construction & Material

Parameter	Typical Specification
Material of Construction	SS316 / SS316L / Hastelloy C22 / MS Rubber Lined
Capacity	50 L to 10 KL
Design Standard	ASME Sec. VIII Div. 1 or cGMP
Filtration Area	0.1 m² to 8 m²
Jacket	Steam/Hot water/Thermic fluid

B. Mechanical & Process Design

Parameter	Specification
Design Pressure	Full vacuum to 3–6 kg/cm²
Design Temperature	-20°C to 200°C
Agitator Type	Multi-arm agitator with variable speed
Agitator Movement	Up/Down hydraulic lifting + rotation
Agitator Seals	Single/Double mechanical seal with thermosiphon
Heating Surface	Bottom dish, side jacket, and agitator(optional)
Filtration Media	SS sintered plate / perforated plate + cloth

C. Operating Features

Feature	Description
Filtration	Slurry charged; solid retained on filter plate
Cake Washing	Uniform washing by agitator movement
Drying	Vacuum drying with heated surfaces
Discharge	Automatic discharge via bottom discharge valve (BDV)
Solvent Recovery	Through condensers & receivers

D. Nozzles & Accessories

Charging nozzle / manway
Vent/filter nozzle
Sight glass with light
Bottom discharge valve (Hydraulic/Manual)
Temperature probe
Pressure gauge & safety valve
CIP spray ball (for pharma)

E. Optional Features

cGMP internal mirror finish (Ra 0.4 µm)
Hastelloy construction for corrosive service
PLC/SCADA automation
Vacuum-rated design
Flameproof motor & panel
Nitrogen blanketing
Load cell integration
Sintered filter plate for full containment

Robust industrial construction
Low maintenance
Energy efficient

Applications and industry use-cases for this product are described here.

ANFDs

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