Ventilation Accessories
Our ventilation accessories range includes VSDs, ducting, and rigid bends with support frames—designed to optimise airflow, enhance safety, and support efficient ventilation in tough environments.
Variable Speed Drives (VSDs)
Specialist Plant supplies ventilation fans with VSDs, providing variable speed control and soft-start functionality for high-power fans.

Ducting
Heavy-duty, semi-rigid fire-retardant ducting is available for both suction and forced ventilation applications.
- SR-75/50 duct – Ideal for suction ventilation
- SR-150 duct – Suitable for forced ventilation
- Galvanised rigid ducting – Available upon request
Catenary wire, wire anchors, and wire rope grips can also be supplied for ducting support.

Rigid Bends & Support Frames
Rigid bends replace flexible ducting to maintain airflow and prevent collapse, especially at the top of shafts.
- Improves airflow stability
- Prevents duct collapse
- Can be bolted to floors or segment linings using support frames
