Sieve Shaker S 20R

INDUSTRIES

 Mining

 Metallurgical

Food

 Construction

 Chemical

Pharmaceutical

 APPLICATIONS

Diamonds, ferroalloys, ore, metal powders, coal, glass, ceramics, polymers, peat, cereals, coffee.

200

1

0,02-2,5

Model of the vibration drive used

VD 30, VD 30T, EVD

Vibration frequency, vibrations/minute

1500

900 — 1800**

Amplitude of vibrations (depending on weight of sample and number of sieves), mm

0,25-0,75**

0,1 — 2,0

50 Hz supply voltage, V

220

Length (diameter), up to, mm

390

Width, up to, mm

350

Height, up to, mm

335

Weight, up to, kg

23

43

EFFECTIVE SIEVING

The vibration drive platform performs high-frequency reciprocating helical oscillations, which provides a spiral-shaped trajectory of particles along the sieving surface — from the center to the periphery of the sieve.

LOW NOISE

Elastic drive elements and rubber shock absorbers provide a low noise level. 

EASY SIEVE FASTENING

The eccentric clamp provides easy installation of the sieve with a tray on the platform of the vibration drive.

NO CROSS-CONTAMINATION OF SAMPLES

Avoiding sample contamination through the use of food grade stainless steel and an interchangeable sieving mesh.

VARIOUS SIEVING MODES

S 12R Sieve shaker can be formed on the basis of three types of vibration drives:

• VD 30 Vibration drive — without automatic stop;
• VD 30T Vibration drive — with a timer;
• EVD Electromagnetic vibration drive — with amplitude adjustment.

The Sieve shaker includes: a vibration drive, a sieving part (consisting of a set of sieves complete with cover and tray) and a sieve fastener.

The setup of the vibration drive is described in the corresponding section of the «Vibration drives» page.

OPERATING PRINCIPLE

The material to be sieved is loaded onto the upper sieve, after which the set of sieves is fixed on the platform of the vibration drive using UKS. When turned on, vibration drive platform performs high-frequency reciprocating helical oscillations, which provides a spiral-shaped trajectory of particles along the sieving surface — from the center to the periphery of the sieve. Moreover, the path traveled by the particles significantly exceeds the diameter of the sieve, which increases the efficiency of sieving. The oscillation frequency is equal to the frequency of rotation of the electric motors, and the amplitude of the oscillations depends on quantity and weight of sieves with material.

Particles of material which are smaller than the size of the sells / apertures in the sieving surface of the upper sieve fall through on the next sieve, where the cycle repeats. As a result, the sample is distributed between the sieves and the tray in accordance with the fractional content. At the end of the sieving process, the contents of each sieve are weighed and the particle size distribution of the sample is determined.

S 20R Sieve shaker scheme

Sieve S 20R and tray

S 20R Sieve shaker on T 80 stand