
Screening machines
The synthesis of successful combination of proven mechanical basis technologies with modern electronic control systems makes HAVER screening machines and classifying systems productivity centre’s throughout the world.
Bulk materials such as chippings, gravel and sand, dry mortar, cement, lime, gypsum and also demolition rubble, glass, fertilizer and many ores are screened, classified, selected or freed from foreign material by HAVER equipment before being subjected to further processing.
The wealth of experience gained from more than 15 000 screening machines built, combined with today’s many possibilities of integration of switch and control technologies, enables HAVER specialists to develop and provide customized solutions of highest quality. World-wide – and always at competitive terms and conditions.
Also for the chemical industry and the food processing industry or in aggressive environments or adverse ambient conditions, or when environmental protection has top priority – the diversified line of HAVER & BOECKER products offers the right solution.
Rugged, tried and tested machine configurations based on the NIAGARA technology implemented worldwide by HAVER Engineering Works in Münster have established an excellent reputation for durability, reliability and maximum screening effect.
The right system, the most rational configuration for nearly every requirement and almost any type of application.
The complete range of machine concepts from one single source: laid out as circular or linear vibration screen, free or forced vibration, open or enclosed design, or in any combination of the above. A wide range of free-swingers also belong to the HAVER product range as well as the HAVER Fine-Line for fine materials screening with directly agitated screens.
State-of-the-art technologies and innovative ideas – a complex interaction, and also an obligation which helped HAVER screening technology to international reputation.
Screening systems - overview
Eccentric vibration screen

Fields of operation
- limestone as scalping screen
- water building block screening
- hard rock and ore processing
- building rubble recycling
- classification of difficult-to-screen materials at high feed rates and with fluctuating loads
- crusher relieve
Cut points
- 3-350 mm
- perforated plates, pressure-welded grids, wire cloth rubber/polyurethane, finger-type gratings
Capacity
- 0-3 000 t/h
- 1-3 decks
Advantages:
- clog-free screening also when using round hole plates
- constant screening products also during changing conditions
- constant amplitude
- customer oriented solutions
Linear vibration screen

Fields of operation
- sand and gravel classification
- washing and dewatering
- wet classification
- limestone classification
- dry mortar classification
- glass classification
- classification of chemical products
Cut points
- 0,2-80 mm
- perforated plates, pressure-welded grids, wire cloth rubber/polyurethane
Capacity
- 0-600 t/h
- 1-3 decks
Advantages:
- modular construction
- gentle screening
- low wear and tear
- low overall height
- customer oriented solutions
Circular vibration screen

Fields of operation
- crushed stone and splinter classification
- sand and gravel classification
- fertilizer classification
- limestone classification
- building rubble classification
Cut points
- 2-150 mm
- perforated plates, pressure-welded grids, wire cloth rubber/polyurethane, finger-type gratings
Capacity
- 0-800 t/h
- 1-3 decks
Advantages:
- modular construction
- sharp classification
- favorable price
- customer oriented solutions
High-frequency vibration screen

Fields of operation
- dry classification of finest products
- limestone classification
- dolomite classification
- reducing of filler content
- fertilizer classification
- classification of chemical products
- dry mortar classification
Cut points
- 0,06-5 mm
- wire cloth
Capacity
- 0-150 t/h
- 1-2 decks
Advantages:
- modular construction
- dust-tight version
- sharp cut points
- high specific screening outputs
- automatic cleaning of screening machines