Chip and Fiber Exhaust Fan

Dust management and safety systems are one of the core pieces of the entire facilities in woodworking shops, sawmills, MDF plants, textile factories and paper processing lines. Chips, shavings, wood fiber, textile lint and paper trim are pulled out directly from the machine and drawn through the fan. These materials are not like granular bulk materials, mostly they are heavy, irregularly shaped, and fibrous. Sometimes they entangle in the impeller hub, got stuck in the blade passage and got stuck in the inlet opening. If the exhaust fan suddenly shutdown then dust accumulates near the machine and the dust amount exceeds the safety limit. As a result, fire hazard risk increases and production lines stop.

The Chip and Fiber Exhaust Fan is engineered to protect the production line from 3 major things, which are entanglement, clogging and imbalance. In this fan, we mostly use an open radial-blade impeller (paddle wheel), which is a wide and large blade space with a clear inlet opening. So, chips, flakes, fibers or trimmed material can easily pass through the outlet without accumulating. Also, crooked and long fibers can easily enter the impeller swept area and exit through the scroll housing without getting tangled in the blade root or hub. ATEX-certified or spark-resistant configurations are available for flammable wood or fiber dust, which eliminate the risk of ignition.

The Chip and Fiber Exhaust Fan is designed to cover the full extraction duty range. It has high airflows up to 90,000m³/h with moderated static pressure capacity. That can cover everything from individual machine extraction in small workshops to central multi-machine (ducted extraction systems) in large industrial plants. A standard unit comes with a belt-drive configuration. That can determine the precise speed based on the specific duct resistance curve and the geometry of the exhaust fan.