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AK26 Proportioning and conveying screws in modular design

AK26 Proportioning and conveying screws in modular design
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AK26 Proportioning and conveying screws in modular design - 1

The conveying screws serve for continuous transport of bulk material in horizontal or ascending direction. The simple design and low maintenance requirements of the conveying screws contribute to their high operational reliability. The screw troughs with removeable covers are executed in a stable construction. The troughs, in the standard lengths of 1500, 2000, 2500, 3000 mm, are connected with each other by means of flanges. Special trough lengths are available. The worm shaft consists of a tubular shaft with welded-on solid thread made of sheet steel. It runs on antifriction bearings with stuffing box sealings. In case of larger lengths maintenancefree intermediate bearings are used. The tubular shaft parts are connected by means of bolts. The inlets and outlets can be arranged according to requirement. The screws are driven by offset geared motors. If sufficient space is lacking, other drive types are possible, too. Designs: ■ Controllable proportioning screws ■ Conveying screws ■ Thread types: solid blade thread, belt thread, paddle thread

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AK26 Proportioning and conveying screws in modular design - 2

Proportioning and conveying screws The arrangement of the inlets and outlets, the thread type, and the direction of rotation depend on the local conditions. Screw diameter 0 Height "A" mm Height of outlet "C" mm Clear width of trough Outlet opening "G" mm Dimension "H" Drive length Depending on drive type and size The following examples show the 4 most frequent designs 1 Right-hand thread, anticlockwise rotation, conveying away from the drive. 2 Right-hand thread, clockwise rotation,conveying towards the drive. 3 Right-hand and left-hand thread, clockwise rotation, conveying from the centre...

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