Unimax Pollution Control [I] Pvt. Ltd. Manufactures Rotary Airlock and Blowing Seal Type Rotary Feeders. Unimax Pollution Control [I] Pvt. Ltd. Supplies various types of pollution control equipment like centrifugal blowers, twin lobe blowers, axial flow fans, air filters, rotary feeders, evaporative cooling system, cyclone separators, multi cyclones, roof exhauster, vertical cyclone separators, etc. The Rotary Airlock and Blowing Seal Type Rotary Feeders are possessed with ability to handle both powders and granulate. There rotary feeders are a wide range of capacities from 1-4 to litres / revolution.