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
	pin screw connection with 4 curved washers and cap nuts to prevent gaps.		Roof-shaped cover
	Two-part centre bearing		Cover with quick lock and safety switch on the hinge
	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
	Inside overflow valve with weight and inductive sensor		Reinforced centre pipe, so no centre bearing required
	Cover with dosing saddle, 0.5 m long		Screw thread without centre pipe, e.g. for products with long fibres
	Dosing plate welded into the trough		Paddle thread with paddles screwed in
	Foot with half-shell or holding plate		Electrically, pneumatically or manually-operated intermediate discharge valve, with appropriate JACOB flange