GilSonic UltraSiever Sonic Sifter uses sonic sieving action with two-way (horizontal and vertical) tapping to achieve the most accurate and reliable particle separations of fine dry powders and granular materials. Its larger design allows for an increased sample capacity of more than seven times that of our GA-6 AutoSiever, and it accepts up to seven 8in (203mm) diameter full-height test sieves.
ASTM E11 woven-wire sieves from 1/4in to No.635 (6.35mm to 20µm) or ASTM E161 sieves with unsupported precision electroformed mesh from 150 to 5µm can be used. ISO 565/3310 200mm sieves can also be used when paired with the GAA-10 Adapter Set. Sample size for materials up to 1/4in (6.35mm) may be 100g. 10g or less is typical when using precision electroformed sieves below 20µm.
Sieving action is created by sonic pulses oscillating inside the sieve stack. Sieving intensity (amplitude) is set through a proportional controller, based on observation of particles during agitation. A programmable ramping function incrementally increases amplitude to the maximum rate and holds it, then steps it back down for optimum separation.
There are additional controls for selectable horizontal and vertical tappers. The horizontal tappers can be positioned to tap on selected sieves. Four vertical tappers can be operated as one pair for most materials or two pairs for difficult samples. Up to 10 programs with specific amplitude, ramping, tapping, and test duration settings for specific materials can be stored. Test times vary depending on material type and particle size. Typical sieving time is 1–5min, but operating time can be set for up to 99min.
The powder coated steel case has vertically hinged Lexan™ doors enclosing the sieve chamber. Sample material is contained by flexible top and bottom diaphragms. The stack is sealed when the upper enclosure is lowered. Upon test completion, fines are recovered from the bottom diaphragm. Acrylic spacers are required when using less than seven sieves or for viewing sieving action.
The GA-8 UltraSiever includes top and bottom sieve stack adapters, four diaphragms for top or bottom use, two acrylic spacers, one double-height acrylic sieve spacer, and twelve polyurethane sieve seal gaskets. The GAA‑5 Sieve Stack Assembly includes top and bottom sieve adapters, handle plate, bottom diaphragm, and sieve seal gaskets to assemble a second sieve stack for faster processing. Test sieves are ordered separately.
Features:
- Sonic sieving for samples up to 100g
- Accepts up to seven full-height 8in or 200mm diameter test sieves
- Fully programmable time, amplitude, and vertical or horizontal tapping sequences
Included Items:
- GilSonic UltraSiever Sonic Sifter
- Top and bottom sieve stack adapters
- (4) diaphragms for top or bottom use
- (2) acrylic spacers
- Double-height acrylic sieve spacer
- (12) Polyurethane sieve seal gaskets
Accessories:
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