Buchner Funnel
Buchner Funnel is a robust vacuum filtration device designed for efficient solid-liquid separation in laboratory and pilot-scale processes. It is typically used with a vacuum pump, in which negative pressure accelerates the filtration process. With simple operation and high filtration efficiency, it is widely applied in the chemical, pharmaceutical, food, and other industries.
Key Features
Safe & Durable Material
Food-grade SUS304 stainless steel funnel, upgradeable to SUS316, offers excellent corrosion resistance with no coating peeling or leaching risks for long-term durability.
High Filtration Precision
Available in multiple funnel sizes and compatible with various grades of filter papers and filter bags to meet various separation requirements.
Hygienic Dead-Leg-Free Design
Smooth welds and dead-leg-free construction prevent material accumulation, improve product recovery and simplify cleaning and maintenance.
Customizable Capability
Funnel size, pore size, receiver capacity, connection type, frame height, and other structural dimensions can be customized according to process requirements.
Structure
Funnel
Wide-mouth design with optimized diameter (300 - 600 mm) to support high flow rates and ensure efficient filtration.
Dual Vacuum Ports
Designed for connection to vacuum pumps, featuring ground glass joints / hose barb fittings to ensure airtight sealing and minimize vacuum leakage.
Filter Plate
Precise pore size with smooth edges and no burrs, ensuring close contact with filter media for reliable filtration performance.
Discharge Valve
Dead-leg-free design with removable structure for easy cleaning and maintenance.
Receiving Bottle
High-transparency borosilicate 3.3 glass vessel allows real-time observation of filtrate clarity during operation.
Mobile Support Stand
Stable structure with lockable wheels for convenient movement, positioning, and fixation.
Vacuum Filtration Process
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Seal: Place the filter paper or filter bag on the filter plate. Pre-wet it with a small amount of solvent to ensure a tight seal against the sealing edge.
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Evacuate: Start the vacuum pump to establish the required pressure differential inside the system.
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Feed: Introduce the slurry mixture into the funnel.
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Filter: The pressure differential drives the liquid phase through the filter paper/bag, while solid particles are retained on the filter plate to form a filter cake.
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Discharge: Continue vacuum drying to remove residual solvent before discharging the filtrate and recovering the filter cake.
Customized Enclosed Buchner Funnel
Technical Specifications
Model | BF-10S | BF-20S | BF-30S | BF-50S | BF-100S |
|---|---|---|---|---|---|
Design Parameters | |||||
Funnel Material | SUS304 stainless steel（optional SUS316） | ||||
Funnel Capacity [L] | 10 | 20 | 30 | 50 | 100 |
Funnel Size [mm] | Φ300*200 | Φ350*220 | Φ400*240 | Φ500*280 | Φ600*400 |
Filter Pore Diameter [mm] | 4 | ||||
Receving Flas Material | High borosilicate 3.3 glass | ||||
Receving Flask Volume [L] | 10 | 20 | 30 | 50 | 100 |
Sealing Material | PTFE | ||||
Discharge Port | DN25 Female Spherical Ground Joint, OD 28 mm / ID 17 mm | ||||
Vacuum Port | 24/29 Ground Joint to Hose Barb Adapter, OD 13 mm / ID 10 mm | ||||
Discharge Valve Ground Clearance [mm] | 350 | 390 | 350 | 300 | 300 |
Weight | Dimension | |||||
Unit Dimension [mm] | 460*460*1370 | 460*460*1480 | 600*600*1600 | 600*600*1600 | 750*750*1700 |
Package Weight [Kg] | 50 | 51 | 71 | 74 | 106 |
Accessories & Supporting Equipment
