A fixed screen is usually a static and steeply inclined, 35-50°, structure to assist material flow under gravitational forces with desired screen openings for sizing of the material.
Roller screens are suitable for sizing coarse, moist, sticky or clayey raw materials. They are used as scalpers, pre-screening devices, for crusher relief and for control screening after the crushing process.
This type of screen consists of a cylindrical drum with a perforated plate or wire mesh attached to the drum to act as the screening media.
Vibratory screens are mechanical devices that induce vibration to classify or separate a product into different fractions based on particle sizes by means of perforated plates, polyurethane panels and piano wire panels.
These very specialised units induce vibration at 3 000 to 6 000 rpm frequency directly into the material through easily interchangeable wire mesh panels. Various aperture configurations provide unmatched versatility and adaptability.
When screening is done, bulk material is separated into two or more products on the basis of either bigger than or smaller than a certain size hence the term ‘size control’.
Sized particles being separated on a high frequency screen for sizing and grading purposes.
Sized particles being separated on a high frequency screen for sizing and grading purposes.
Since 1952, Union Engineering has served the Agricultural, Mining, Transport and Construction sectors by providing precision engineered services and products.
We supply cost effective metal engineering services and build 'fit for purpose' particle separation and sizing equipment that exceed customer expectations.
Our screens are custom designed and engineered to provide the perfect screen for each unique requirement and industry.
Providing low operating cost equipment for particle separation and sizing of materials solutions through in house developed and built, 'fit for purpose' high frequency screens.
