Products A Glass Funnel enables accurate transfers and reliable gravity or vacuum-assisted filtration. Borosilicate construction provides clarity, chemical resistance, and a consistent 60° profile for filter paper. Choose conical short or long stem, powder, Büchner, dropping or pressure‑equalizing, and separatory styles for routine prep and analysis.
Select a funnel that matches your process and receiving vessel.
| Type | Primary use | Notes |
|---|---|---|
| Conical, short stem | General transfer; gravity filtration | Fast flow; 60° cone fits standard filter paper |
| Conical, long stem | Narrow‑neck filling | Improves aim; reduces splashing |
| Powder funnel | Solids and viscous media | Wide stem and steep walls resist bridging |
| Büchner (glass) | Vacuum filtration | Rigid support; pair with vacuum flask and adapter |
| Dropping / pressure‑equalizing | Controlled addition | Stopcock control; pressure balance for closed systems |
| Separatory funnel | Liquid–liquid extraction | Pear/Squibb shapes for clean phase separation |
Use 60° paper sized to contact the wall without extending above the rim. Select short stems for fast pours and long stems for narrow‑neck vessels. Fluted interiors help air release.
| Material | Borosilicate 3.3 for clarity and chemical resistance |
| Cone angle | Typically 60° for efficient gravity filtration |
| Stem options | Short for throughput; long for control and reach |
| Finish / joints | Fire‑polished rims; optional fluted interior; jointed options where applicable |
| Size range | Capacities and diameters suitable for teaching, QA/QC, and R&D |
With proper handling, borosilicate offers good thermal shock performance and broad solvent compatibility.
Use these funnels for reagent preparation, buffer and media making, HPLC mobile phase prep, sample transfers to calibrated flasks, and gravity or vacuum filtration in analytical workflows.
Process: transfer, gravity or vacuum filtration, controlled addition, or extraction.
Fit: match top diameter to paper size; confirm stem OD with neck opening or joint size.
Environment: verify solvent, temperature, and any vacuum/pressure conditions.
We operate under ISO 13485 to support consistent procurement, traceability, and documentation. Clean handling and protective packaging reduce particulates and breakage. For OEM/ODM, options include stem dimensions, joint configurations, interior finish, branding, and kit or distributor packaging. Bulk supply and responsive scheduling support IVD, pharmaceutical, and research timelines.
Send required types, diameters/capacities, stem or joint options, quantities, and destination. We will confirm availability, typical MOQs, sample options, and lead time.
Partner with a Glass Funnel supplier backed by a B2B labware manufacturer’s quality system. Our team can assist with paper sizing, apparatus fit, and selection guidance.
