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Set of high-quality porcelain Buchner funnels in different sizes

Detailed view of the Buchner funnel stem/spout

Ceramic Buchner funnel showing the perforated filter plate

Close-up of the filter holes inside a ceramic Buchner funnel

Close-up of fritted glass sand core filter funnel for lab use

Buchner funnel used with a vacuum filtration flask

Features & Details

🛡️ ACID & ALKALI PROOF	Fired from glazed laboratory porcelain, resisting concentrated nitric acid, sulfuric acid, and strong alkalis without glaze erosion.
🔥 1000°C THERMAL TOLERANCE	Withstands high-temperature precipitates and thermal drying in laboratory muffle furnaces up to 1000°C without cracking.
🕳️ PRECISION PERFORATED PLATE	Uniformly spaced perforated ceramic base plate supports quantitative circular filter paper discs securely under deep suction.
📏 40MM TO 200MM SIZES	Available from micro analytical 40mm diameters up to large preparative 200mm industrial laboratory filtration funnels.

About this item

Product specification

Parameter

Xin Tester Specification Details

Material & Construction

Base Material

Premium Thickened Ceramic

Surface Finish

Fully Glazed Inside & Out (Smooth, easy to clean)

Chemical Resistance

✓ Highly resistant to corrosive acids
✓ Highly resistant to strong alkalis

Available Inner Diameters (Model SKUs)

40 mm Diameter

60 mm Diameter

80 mm Diameter

100 mm Diameter

120 mm Diameter

150 mm Diameter

200 mm Diameter (Extra Large Capacity)

✦ Warm Reminder Regarding Ceramic Crafts:
Due to the high-temperature ceramic firing process, minor imperfections such as slight surface unevenness, small black dots, or minor glaze variations may occur occasionally. Please note that these are normal process characteristics and absolutely do not affect the functional performance or chemical resistance of the funnel.

Heavy Chemical Precipitate Separation & Suction Filtration

Xin Tester Ceramic Buchner Funnel (40mm – 200mm)

Plastic and fragile glass funnels deform or crack when filtering hot, aggressive chemical reaction mixtures under strong vacuum. The Xin Tester ceramic Buchner funnel is crafted from premium porcelain with dense glaze on all surfaces except the rim. It provides extreme resistance to acid corrosion, thermal shock, and mechanical scraping during precipitate cake recovery. Explore our complete selections in the Lab Consumables catalog.

Perforated Drain Bed

The integrated ceramic disc features uniformly arrayed drain holes that distribute vacuum negative pressure across the entire paper surface, speeding up liquid drainage without paper blowout.

Standard Beveled Stem

The lower drainage stem features a 45-degree angle beveled tip that guides filtrate smoothly down the side wall of the receiving filter flask, preventing turbulent splashing.

Diameter Selection & Filter Paper Matching

Available in 40mm, 60mm, 80mm, 100mm, 120mm, 150mm, and 200mm outer diameters. Ensure your filter paper diameter matches the inner plate diameter exactly.

Related testing & equipment:
Lab Glassware |
Lab Vacuum Pump

Related products:
fritted-disc Buchner funnel

Use Cases

Chemical Synthesis Filtration & Separation Sample Preparation School Science Labs

FAQs

How do I ensure the best filtration efficiency with the Xin Tester Buchner Funnel?

For optimal results, ensure the filter paper size matches the funnel’s inner diameter perfectly. Before starting the vacuum pump, wet the filter paper with a small amount of distilled water or solvent to create a tight seal against the pore plate, preventing particles from bypassing the filter.

Is this ceramic funnel compatible with strong acids and bases?

Yes, the Xin Tester Ceramic Buchner Funnel is made from high-quality porcelain with a protective glaze that offers excellent chemical stability. It is specifically designed to resist corrosion from most acids and alkalis used in standard laboratory procedures.

What safety precautions should I take during vacuum filtration?

Always secure your filtration setup using a stand and clamp to prevent it from tipping over. When stopping the experiment, always release the vacuum pressure in the filtration flask before turning off the vacuum pump to prevent “back-suction” of the filtrate.

How should I clean and maintain the funnel after use?

After filtration, separate the funnel from the flask and rinse it with clean water or an appropriate solvent. For stubborn residues, a mild laboratory detergent can be used. Allow the funnel to air dry completely before storage to maintain its glazed integrity.

Xin Tester Ceramic Buchner Funnel (40mm-200mm), Acid & Alkali Resistant Vacuum Filtration Labware

Price range: $12.07 through $98.37

Extra 5% Off with code: welcome5

SIZE

Clear

6–12 Month Warranty

Repair & Refund support available for most products.

Free Worldwide Shipping

Ships within 3 business days.

Taxes & Duties

Buyer responsible for local import fees.

24/7 After-Sales Support

Technical assistance & video guidance within 24h.