A-3 pro

The high-performance A-3 pro sieve shaker enables rapid determination of the quantitative particle size distribution of solids and suspensions in the measurement range from 20 µm to 63 mm. As a throw-type sieve shaker with an electromagnetic drive, it sets the sieve tower in controlled vertical oscillatory motion and is suitable for sample quantities of up to 2 kg for dry sieving and up to 100 g for wet sieving.

Automatic amplitude control for precise reproducibility

The top-of-the-line A-3 pro model features automatic amplitude control (AMPCONTROL) to ensure a constant amplitude and precisely reproducible sieving results in accordance with DIN 66165-1. The device can be used as a calibratable and validatable test instrument in test equipment monitoring according to ISO 9001, making it ideal for rapid quality control during incoming and outgoing goods inspection. Operation is particularly user-friendly via an ergonomic soft-touch pad with a digital display for all functions.

Intelligent Program Selection and Control

The microprocessor control system allows for the storage of up to ten individual sieving programs. All functions can be controlled via the RS232 interface—in combination with the AUTOSIEVE software, the screening process can be monitored through an online comparison of target and actual amplitudes. Interval operation reduces sieving time for high-volume, low-density materials. An energy-saving mode automatically switches the device to standby.

Versatile Sieving Options

The sieving machine uses woven analytical sieves in diameters of 100 mm, 200 mm, or 8". Up to ten analytical sieves can be used simultaneously per cycle, allowing for up to five sieving operations to be performed in parallel. The distortion-free EASYTWIST sieve tower clamping system is included with the unit. The TorqueMaster, an optional, easy-to-use electric sieve clamping system, is available to ensure automatic and reproducible clamping of the sieve tower.

An intelligent wet sieving head with two rotating nozzles is available for wet sieving. Optimal power consumption prevents the sieving system from overheating and ensures quiet, robust, and long-lasting operation. This compact benchtop unit, measuring 37 x 40 x 20 cm and weighing 21 kg, is designed for worldwide use with 100–240 V/1~, 50–60 Hz.

AUTOSIEVE Software for Automatic Analysis

The multilingual AUTOSIEVE software controls the A-3 pro and enables automatic evaluation, easy monitoring, and documentation of the sieving results. Once connected to a laboratory analytical balance, the difference in weight before and after sieving is determined automatically. The software stores the empty weights of individual sieves and complete sieve sets and allows for convenient entry of all parameters—such as amplitude, sieving time, and interval operation—via the computer.

From Sieving to Grinding in a Single Unit

In just a few simple steps, the sieving machine can be converted intothe P-0 vibrating mill —for grinding and homogenizing small sample quantities with a filling volume of 1 to 10 ml and a feed particle size < 5 mm. With the special FRITSCH Kryo-Box, grinding at low temperatures in liquid nitrogen is also possible. This modular system offers a wide range of application possibilities.