GilSonic UltraSiever: The Ultrasonic Sieve Shaker

GilSonic UltraSiever: The Ultrasonic Sieve Shaker

• Sonic sieving for samples up to 100g.

• Uses 8in or 200mm diameter sieves.

• Fully programmable time, amplitude and vertical or horizontal tapping sequences.

The GilSonic UltraSiever uses up to seven 8in (203mm) diameter full-height test sieves. Woven wire sieves in the 1/4in to No.635 (6.3mm to 20µm) range or special 8in (203mm) precision ultrasonic sieves with unsupported electroformed mesh in the 150µm to 5µm range can be used for ±2µm precision. A sample size of 10g or less is typical for precision electroformed sieving below 20µm. Coarser samples range up to over 100g, depending on mesh sizes and number of ultrasonic sieves used. Particle size range is extended to 1/4in (6.3mm) top-size for many particles. Typical sieving time is 1-5 minutes. For more on particle size analysis, including air jet sieving options, see our complete guide.

This ultrasonic sieve shaker is designed for laboratory and production applications, equipped with advanced ultrasonic components such as a transducer and generator. The technology enables high frequency vibrations to be delivered directly to the screen surface and screen mesh, improving the sieving process by preventing screen clogging and blinding. The ultrasonic system offers significant advantages over traditional ultrasonic sieve shakers, making it suitable for efficient screening of fine powders, powder coatings, pharmaceuticals, and other materials. Ultrasonics improve performance, reduce downtime and cleaning, and enable reliable results for a wide range of applications and products. The working principle of the ultrasonic sieve involves transmitting ultrasonic frequency vibrations through the sieve frame and mesh, powered by the generator, to enhance separation efficiency and maintain mesh integrity. This makes the GilSonic UltraSiever a leading choice among laboratory sieving machines and sieve shakers, recognized for its quality, cost-effectiveness, and product quality in both laboratories and production environments.

Maximum amplitude is determined in manual mode by viewing action of largest particles in each sample type. Each program has timed segments for build-up to desired maximum amplitude, hold time at maximum, then down-ramp to zero. A 0-99 digital LED displays amplitude. Additional GA-8 controls include switches for seven pairs of horizontal tappers positioned to tap on selected ultrasonic sieves. Switchable vertical tappers operate as one or two pairs. A single pair is sufficient for most powder separations. Two pairs are used for samples containing larger particles. Ten-program memory stores all settings and sequences. The ultrasonic system allows users to set vibration frequency and amplitude, making the sieving process easy to adjust for different applications and diameters.

Vertically-hinged acrylic doors enclose the ultrasonic 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 ultrasonic sieves or for viewing air jet sieving action. The ultrasonic sieve shaker is suitable for laboratory and industrial use, and is especially effective for air jet sieving fine powders and products that tend to agglomerate or generate static electricity.

The GilSonic UltraSiever includes top and bottom ultrasonic sieve stack adapters, four diaphragms for top or bottom use, two acrylic spacers, one double-height acrylic spacer, and twelve polyurethane ultrasonic sieve Seal Gaskets. The ultrasonic sieve chamber and stack are fitted with a ultrasonic sieve frame and ultrasonic transducer to vibrate the screen at ultrasonic frequency, reducing downtime and cleaning requirements with an ultrasonic sieve cleaner machine.

The GilSonic UltraSiever offers options for wet sieving, is compliant with ASTM E standards, and is recognized for its high performance, reduced cost, and improved product quality in laboratory and production environments.