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Quantachrome Autotap AT-4 used very nice
The tapped density of powdered, granular of flakey material is highly dependent on the manner in which the particles are packed together. During tapping, particles gradually pack more efficiently, the powder volume decreases and the tapped density increases.
Under controlled conditions of tapping rate, tap force (ie drop) and cylinder diameter, this condition of maximum packing efficiency is highly reproducible. Tapped density measurement (sometimes referred to as tapped bulk density, or just tap density) is formalized in a number of international standards to which both Autotap models conform.
AUTOTAP™and DUAL AUTOTAP™
Attributes Depth 11 in
Height 7 in (excluding cylinders)
Width 21 in
Power Requirements 110-120 V or 220-240V, 50/60Hz
Weight24 lbs Autotap
Additional SpecificationsDual Autotap Weight: 31 lbs
Temperature: 15ºC - 40ºC
Max. Related Humidity: 80%
Stations: Autotap:1 Dual Autotap: 2
250 ml standard; 10ml, 25ml, 50ml,
100ml, 500ml, 1000ml optional.
1000ml requires auxillary plate (p/n 04000-1299) or quick-change assembly (p/n 01470-5830).
Nominal tapping rate: 260 min-1
Tapping (drop) height: 3mm (0.125 inch).
Tap counter: 1-999999
Display: LCD, automatic countdown, automatic reset.
Platform rotation: automatic