Fritsch GmbH - Heavy Duty Sieve Shaker analysette 18

primarily used for particle size analysis and grading of coarse-grained materials.

Typical fields of application:
The analysette 18 is primarily used for particle size analysis and grading of coarse-grained materials. The maximum feed quantity of 25 kg for sieving material and sieve stack means it can also be used in pilot plant production or in test series for larger quantities.
It is used wherever manual sieving is replaced by mechanical sieving in order to lower costs or achieve greater reproducibility. A maximum sample quantitiy of up to 6 kg can be processed in the measuring range 63 µm to 125 mm. Sieve process times are between 5 and 60 minutes.

Method of operation:
The "analysette 18" is a vibratory sieving machine that has been specially designed for processing large quantities of material which requires sieving. It essentially avoids the disadvantages of lighter sieving machines in which the sample and sieve weights can sometimes bias the sieve results.
Two unbalanced motors installed in phase opposition under exactly defined angles create optimum vibration of the test sieves mounted on the sieve plate. Both motors are precision braked at the end of the sieving time.
This design means that the sieved materials are accelerated vertically as well as horizontally, causing the material to change direction continuously, thus producing shorter sieving times and sharper separation results.

Features of performance:

• Takes up to 7 sieves plus pan and sieve cover, continuous operation is possible. - Sieves with mesh widths of 63 µm to 125 mm. The test sieves are available in accordance with ISO 3310-1 and ASTM E-11-1995
• Sieves can be calibrated to ISO 9001:2000.
• Material quantity up to 6 kg.
• Short sieve times, exact cut-off points as a result of multi-dimensional movement processes.
• Simultaneous vertical and horizontal sieve vibratory movement.
• Universal support plate and clamping device for 200/8", 350, 400, 450 mm and/or 12, 16, 18 inch sieve diameter.
• Robust construction for heavy-duty operating conditions.
• Two maintenance-free unbalanced motors.
• 2 year guarantee.

Equipment:
The Heavy Duty Sieve Shaker analysette 18 is delivered without test sieves and sieve pan, inclusive tensionin and sieve cover, incl. control and evaluation programme AUTOSIEVE for WINDOWS™ standard version for test purposes for 180 days. The extended version must be ordered separately. When sieving fine-grained materials, the use of vulkollan cubes can be beneficial.