Solid filter-dryer Nutschenfilter 10 - 300 Liter

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Overview
Borosilicate glass Nutsche filters by Büchi for pilot plants and kilo‑labs. Mobile, sealed glass filtration vessels for solid–liquid separation, filtration, drying and crystallization. Designed for sealed processing under full vacuum and compatible with inert atmospheres and a wide range of solvents and acids.

Technical data (from product table)

• Filtration vessel volumes: 10, 30, 50, 100, 140, 300 L
• Operating pressure: full vacuum (-1.0 bar (FV)) to +0.5 bar
• Operating temperature: -60 °C to +150 °C (intermittent up to 200 °C)
• Filter cloth: mesh sizes 8 – 115 μm
• Construction materials: Borosilicate glass 3.3, PTFE, PFA, ETFE

Typical applications

• Filtration / Separation
• Solid phase peptide synthesis (SPPS)
• Drying
• Chromatography
• Purification
• Crystallization
• Ion exchange
• Cannabis extraction and winterization
• Cannabinoid extraction and purification

About the Nutsche filter
The Nutsche filter is a sealed glass filtration vessel fitted with a filter cloth and a bottom outlet. Slurry is transferred into the vessel where solids form a cake on the cloth while filtrate exits via the bottom valve. Cake squeeze is possible using the height‑adjustable stirrer to accelerate dewatering. The vessel can be lowered for top‑side cake removal and the bottom plate can be lowered for cleaning or cloth replacement.

Standard package

• Glass filter vessel
• ETFE‑coated cover plate with ports for slurry feed, nitrogen, etc.
• PTFE bottom plate with filter cloth
• Mobile stainless steel frame with lifting device
• Corrosion‑resistant materials
• FDA conformity and cGMP support
• Complete documentation

Standard options

• Manual stirrer (stainless steel, Hastelloy or inert coated)
• ATEX stirrer drive with adjustable speed
• CIP capability
• Heating jacket for drying
• IQ / OQ / PQ qualification

Technical specifications

• Available vessel volumes: 10–300 L
• Pressure range: -1.0 (FV) to +0.5 bar
• Temperature range: -60 °C to +150 °C (optionally up to 200 °C)
• Filter media: 8–115 μm mesh sizes
• Materials: Borosilicate glass 3.3; PTFE, PFA, ETFE components
• Mobile frame with lifting device for ergonomic cake handling
• Options: inert‑coated or Hastelloy stirrers, ATEX drives, CIP, heating jacket, validation documentation