Tap Density Tester
Product Code : EL-GLE-10306
Lab Glassware Manufacturer supplies the Tap Density Tester, a pharmaceutical instrument that measures bulk and tapped density of powders in accordance with recognized pharmacopoeial test methods.
Quick answer: This tap density tester is designed to support USP 1 (300 taps/min) and USP 2 (250 taps/min) test methods, calculating and printing tapped density, compressibility index, and Hausner ratio for 10ml, 100ml, and 250ml cylinders.
| Parameter | USP 1 | USP 2 |
|---|---|---|
| Stroke Height | 14 mm ±2 mm | 3 mm ±0.3 mm |
| Strokes / Minute | 300 | 250 |
| Parameter | Value |
|---|---|
| Compatible Cylinders | 10 ml, 100 ml, 250 ml |
| Number of Taps | 1–9999, programmable |
| Display | 24 x 2 character LCD |
| Motor | 6V DC, 10 Kg-cm stepper motor |
| Power Supply | 220/230V AC, 50/60Hz, 44 VA |
| Printer Interface | Parallel port |
Tapped Density and the Hausner Ratio
Tapped density testing settles a powder sample through repeated mechanical tapping to reach its most compacted volume, which, compared against the initial bulk volume, yields the compressibility index and Hausner ratio — standard indicators of a powder's flowability used in tablet and capsule formulation work. Running the test at both the USP 1 and USP 2 stroke settings allows results to be cross-checked against the pharmacopoeial method most relevant to a given product specification.
Frequently Asked Questions
What cylinder sizes are compatible?
Compatible cylinder sizes are 10ml, 100ml, and 250ml.
Can results be printed automatically?
Yes, the instrument includes a parallel port interface for connecting a printer.
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Last updated: September 2026