Shaker

Shaker is used for better felting of paper and for reaching of higher paper strength. Fibres coming on the wire from headbox are formed in longitudinal machine axis direction. This fact could cause very low cross strength of the paper. But through shaking the wire by the shaker the fibres are formed uneven and an uniform cross and longitudinal strength is then reached.

Favorable results of wire shaking depend on a lot of factors

• stroke length and shaking frequency
• machine speed
• kind of operated paper stock
• ratio stock outlet speed and wire speed

Design

Shaker is used up to maximal speed 350 m/min of the paper machine. Shaker effect is reduced at higher speeds eventually disappears at all. Shaker itself consist of welded box where an eccentric is beard on rolling bearings. The eccentricity values are adjustable. Size of eccentricity and so stroke size are adjusted by movement of con-rod on main shaft. The value of the stroke is reading able on a scale. The shaker is connected with wire board through a shaker bar. Shaker drive is solved through a variator or electric motor with frequency converter. During shaker operation the stroke size and oscillation frequency should respect diagram put on shaker box.

Main parts

• shaker with stand and foundation frame (1)
• V-belt drive: pulley (2), variator or electric motor with frequency converter, safety cover
• hand wheel for revolutions control (3)
• main shaft with lubrication disks (4)
• con-rod - connecting shaker with wire board (5)

Material

• shaker box and a stand - weldments of common steel
• con-rod and con-rod head are made from stainless steel

Advantages

• high operation reliability
• easy service

Design and work safety are in compliance with EU standards.

Download leaflet (  63.927 KB)