Buchner Funnel with Thick Stem

The GISCOM Buchner Funnel with Thick Stem is a high-quality porcelain filtration funnel designed for vacuum filtration of suspensions, precipitates, and chemical solutions. Featuring a fixed perforated plate and a reinforced thick stem, it ensures steady flow, robust performance, and excellent chemical compatibility. This funnel is essential for laboratories requiring precise, safe, and repeatable filtration in routine and advanced analytical workflows.

Key Features

• High-density porcelain construction for durability and long service life
• Thick, reinforced stem for improved stability during vacuum filtration
• Fixed perforated plate ensures uniform support for filter papers
• Glazed inside and outside for easy cleaning and chemical resistance (rim unglazed where applicable)
• Excellent thermal resistance, suitable for heated solutions and controlled filtration
• Non-porous, smooth surface minimizes contamination and sample retention
• Strong mechanical strength is ideal for routine, high-frequency laboratory use
• Compatible with standard vacuum filtration systems

Material Specifications

• Material: Premium laboratory-grade porcelain
• Thermal Properties: Heat resistant up to approx. 1000–1150°C. Good resistance to gradual thermal changes
• Chemical Properties: Resistant to acids, alkalis, solvents, and corrosive chemicals. The glazed surface prevents absorption and staining
• Mechanical Properties: Thick-walled, impact-resistant structure. Perforated plate engineered for uniform filtration
• Standards: Manufactured in accordance with common ISO/DIN specifications for laboratory porcelain ware

 Technical Specifications

• Available Sizes: Multiple diameters and capacities available to suit different filtration scales
• Design Details: Fixed perforated plate with optimized hole distribution stem for secure fit with filtration flasks and adapters
• Accuracy/Tolerance: Dimensional consistency maintained as per laboratory ceramic standards
• Accessories Included: Optional filtration accessories and rubber adapters available separately

Handling & Precautions

• Ensure gradual heating and cooling to avoid thermal shock
• Always support the stem properly when attaching to vacuum filtration assemblies
• Use soft brushes or non-abrasive cleaners for washing
• Avoid immediate water contact when the funnel is hot
• Inspect perforations regularly to ensure free flow
• Store carefully to prevent chipping or cracking of edges

Applications

• Vacuum filtration of chemical solutions and suspensions
• Precipitate separation in analytical chemistry
• Sample purification in research, QC/QA, and industrial laboratories
• Widely used in pharma, chemical processing, biotechnology, food and beverage testing, and academic laboratories
• Ideal for day-to-day filtration in teaching labs, R&D units, and industrial testing centers