Vankel Vanderkamp Tap Density Tester 300 RPM 3 in. Diameter Dual Platform

The Vankel (Vanderkamp) 10705 Tap Density Tester is a classic pharmaceutical instrument widely used to characterize the flow properties and compressibility of powders. Operating at a fixed speed of 300 taps per minute (RPM), this unit is specifically engineered to comply with USP Method 1 (and corresponding ASTM standards), which mandates a higher drop height (typically 14 mm) and faster tap rate than Method 2. The device functions by mechanically lifting and dropping a graduated cylinder filled with a known mass of powder; as the cylinder impacts the base, the powder bed consolidates, allowing analysts to calculate critical flow indices like the Hausner Ratio and Carr Index.

The unit features a robust 3-inch diameter platform designed to securely hold standard 100 mL or 250 mL glass graduated cylinders. This platform size is critical for stability, ensuring the cylinder does not wobble or tilt during the vigorous tapping cycle, which would skew the volume reading. Most 10705 models are equipped with a counter (often a settable digital or mechanical counter) that automatically stops the test after a prescribed number of taps (e.g., 500, 1250), ensuring reproducibility across different batches and operators.

Operating video of the product for sale is available at this link.