Trough screw conveyor for mineral wool

Through screw conveyor for mineral wool to replace an old tubular screw conveyor. The screw conveyor is designed to manufacture to transport mineral wool waste – an abrasive material. The trough conveyor is delivered with a number of support cribs for easy installation on-site.

Key features for the screw conveyor application:

• The screw conveyor housing is manufactured with higher material thickness
• The screw flights have been applied with wear fligths – learn more about wear flights here
• The screw conveyor housing has an extra outlet with a gate valve plate parellel to the U-trough

See another example of a BEMA trough screw conveyor

What is the idea behind using a gate valve plate parallel to the screw conveyor housing?

1. The parallel gate valve plates eliminates the possibility for the material to build up underneath
2. Some time of material will compress if you use a conventional gate valve, and the gate valve is closed
3. The parellel gate valve avoids this possibility

What is the advantage of a trough screw conveyor compared to a tubular screw conveyor?

1. The U-trough screw conveyor has lids which can be de-mounted
2. After de-mounting of the lids, the screw rotor can be serviced
3. In the actual case, the wear screw flights can be changed

When we design trough conveyor in BEMA we strive to deliver a complete solution in which we mean:

1. Deliver all related components needed to install the conveyor
2. Make it easy to maintain and service all parts in the screw conveyor
3. Using standard components that is easy to access in the market for delivey of spare parts
4. Deliver a complete documentation with the trough screw conveyor for easy identification of spare parts

FAQ: Trough Screw Conveyor for Mineral Wool

1. What is the trough screw conveyor designed for?

It is engineered to transport mineral wool waste—an abrasive material—replacing older tubular screw conveyors while ensuring reliable, wear‑resistant performance.

2. How is the conveyor built to handle abrasive materials?

The housing is manufactured with increased material thickness, and the screw flights are equipped with wear flights to extend service life under heavy wear conditions.

3. What is the purpose of the parallel gate valve plate?

The parallel gate valve prevents material from building up underneath the valve. Unlike conventional gate valves, it avoids compression issues when the valve is closed.

4. Why choose a trough screw conveyor instead of a tubular design?

A U‑trough conveyor allows the lids to be removed for easy maintenance, enabling quick access to the screw rotor and replacement of wear flights. It also supports a complete installation‑friendly solution with standard components and full documentation.