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Model 01412

The sand grain composition determination unit, model 01412, is intended for the determination of granulometric composition, fineness modulus and average grain size of molding sands using the vibration method. It is used in operations in soil laboratories of foundry workshops and central laboratories of enterprises.

Unit components

The unit consists of a housing which is intended for the assembling of all components of the unit. A vibration damper with an electromagnet is mounted inside the housing. A vibrator table is mounted to the upper part of the housing through which electromagnetic oscillations are transferred to the table with sieves. The sieves are mounted to the table with a clamping device.

Operation principle of the unit

The unit is controlled from a control panel with the following control elements: a toggle switch for the unit switching on/off, oscillation amplitude variation regulator, a time switch for screening duration setting. The 50 g weighed portion part (sand base) remaining after clay bond washing is dried out and placed onto the upper sieve screen. A basin is placed under the lower net, the upper one is closed with a cover. The assembled nest of sand testing sieves is installed onto the table and fixed. The unit is switched on by the toggle switch and is switched off automatically. After sieving, the whole tested sample is divided into twelve parts (11 sieves and one basin). Each part is weighed separately with accuracy of 0.01 g and the value is multiplied by two. Obtained values are expressed as a percentage of weighing remnants on each sieve in relation to the whole initial 50 g weighed portion.

PDFBrochure
Technical specifications:
Drive unit type Electromagnetic vibrator
Sieves oscillation frequency, oscillation frequency per second 50
Number sieves in a nest, pcs 11
Sieves oscillations amplitude, mm 0.1-1.0
Screening time (with weighed portion weight 50 g), min 15
Power consumption, W 275
Overall dimensions:
Length, mm 465±10
Width, mm 295±10
Height, mm 675±10
Unit weight, max. kg 40