Trough screw conveyors, basic equipment and accessories
In standard design our trough screw conveyors consists of troughs and threads and geared motors with flexible couplings mounted on motor brackets at inlet or outlet.
The troughs and the threads are made of steel or stainless steel. The outlet is squared with JACOB flange. The thread is supported with intermediate centre bearing ca. each 3 m. On both ends HP shaft seals flush with end plates are used for shaft sealing.
Table of the most common accessories for trough screw conveyors
Image | Description | Image | Description |
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pin screw connection with 4 curved washers and cap nuts to prevent gaps. |
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Roof-shaped cover |
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Two-part centre bearing | ![]() |
Cover with quick lock and safety switch on the hinge |
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Overflow valve with safety switch on the hinge | ![]() |
Hinged base (each flap max. 1.2 m) with quick lock and safety switch on the hinge Silicon seals for foodstuffs |
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Inside overflow valve with weight and inductive sensor | ![]() |
Reinforced centre pipe, so no centre bearing required |
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Cover with dosing saddle, 0.5 m long | ![]() |
Screw thread without centre pipe, e.g. for products with long fibres |
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Dosing plate welded into the trough | ![]() |
Paddle thread with paddles screwed in |
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Foot with half-shell or holding plate | ![]() |
Electrically, pneumatically or manually-operated intermediate discharge valve, with appropriate JACOB flange |