Funnel Buchner

Buchner Funnel, with sintered disc, porosity G-0 or G-1 or G-2 or G-3 or G-4

Description

Catalog No. Capacity ml Disc Dia. mm
11016/1 35 30
11016/2 80 40
11016/3 100 50
11016/4 200 65
11016/5 500 90
11016/6 1000 120

The MEDILAB Buchner Funnel is a precision-engineered laboratory filtration tool designed for rapid separation of solids and liquids using vacuum-assisted filtration. Manufactured from high-clarity Borosilicate Glass 3.3, it ensures superior chemical resistance and thermal stability during routine and heavy-duty applications. This funnel is essential in chemical analysis, sample purification, crystallization processes, and quality control operations, delivering consistent performance and reliable filtration results.

Key Features

  • High-performance vacuum filtration design for efficient solid–liquid separation.
  • Made from Borosilicate Glass 3.3, offering exceptional thermal shock resistance.
  • Heavy-wall construction for long-term durability and stability under vacuum.
  • Uniform perforated plate ensures smooth flow rate and consistent filtration efficiency.
  • Excellent chemical compatibility suitable for acids, bases, solvents, and organic reagents.
  • Reusable and easy to clean, making it ideal for frequent laboratory operations.
  • Clear glass visibility allows real-time observation during filtration.
  • Available in multiple sizes, meeting diverse laboratory and industrial filtration needs.

Material Specifications

Material: Borosilicate Glass 3.3
Properties:

  • High resistance to thermal shock (low coefficient of expansion 3.3 × 10⁻⁶/K)
  • Exceptional chemical durability, resistant to most acids, alkalis & solvents
  • Smooth, non-porous surface prevents contamination and ensures easy cleaning
  • Mechanically strong and stable for vacuum filtration setups

Standards:

  • Complies with ISO 3585 (Borosilicate Glass 3.3)
  • Manufactured under ISO 9001:2015 certified quality systems
  • Compatible with standard laboratory vacuum filtration assemblies

Technical Specifications

Available Sizes: 35 mm-1000 mm (or as per customer requirement)

Design & Dimensions:

  • Cylindrical body with perforated plate
  • Thick wall design suitable for vacuum filtration
  • Precision-formed rim for secure sealing with filter paper

Tolerance / Accuracy:

  • Dimensional accuracy as per international laboratory glassware standards

Packaging:

  • Individually packed in protective corrugated boxes with foam cushioning
  • Master carton export packaging for safe global transport

Accessories (Optional):

  • Filter papers in corresponding diameters
  • Vacuum adapters and rubber cones
  • Filtration flask / Buchner flask

Handling & Precautions

  • Always inspect the funnel for cracks or scratches before applying the vacuum.
  • Use compatible filter paper sizes to ensure proper sealing and filtration efficiency.
  • Do not subject the funnel to sudden temperature changes; allow gradual heating and cooling.
  • Suitable for autoclaving at 121°C; avoid overheating beyond recommended limits.
  • Clean using mild laboratory detergents; avoid abrasive scrubbers.
  • Ensure proper support when connected to a vacuum line to prevent tipping or breakage.
  • Do not use with highly alkaline solutions at temperatures above 80°C.

Applications

The MEDILAB Buchner Funnel is widely used across scientific and industrial sectors for:

  • Vacuum filtration of precipitates, crystals, reaction mixtures, and suspensions
  • Sample preparation in chemical labs, universities, R&D centers, and analytical labs
  • Pharmaceutical QC/QA workflows for purification and separation processes
  • Biotechnology & microbiology applications for media filtration
  • Environmental testing for residue analysis and particulate separation
  • Routine filtration in food, beverage, and material testing laboratories

It plays a crucial role in maintaining accuracy, clarity, and reproducibility of analytical results in daily lab operations.

7. Why Choose MEDILAB

  • 35+ years of manufacturing expertise in premium laboratory glassware
  • Exporting to 40+ countries with a strong global distribution network
  • Precision manufacturing using export-quality Borosilicate Glass 3.3
  • OEM / private labeling support for international brands and distributors
  • Proven consistency, reliability, and long-term performance across product lines
  • Robust, secure packaging designed for safe worldwide shipments
  • Trusted by pharma companies, universities, research labs, and QC/QA facilities globally