For production where there are no frequent colour changes; a booth with gravity operated suction hopper and a cyclone recovery system is economical design.
The bottom portion of the booth is provided with a conical shaped hopper with vibrating volume adjustor plate. The oversprayed powder falls on the sloped wall of the hopper. Because of the high velocity of the air, vibrating volume adjustor plate is made to swing around the axis. This causes instant increase in the air velocity along the slopes of the hopper. The oversprayed powder is sucked into the suction ducts which is connected to the inlet of the cyclone recovery unit.
A powder coating booth design is basically a design for controlled air flow. The controlled air flow and velocity ensures maximum powder recovery, lower contamination of powder due to efficient recovery and thereby optimum utilisation of the powder.

Economics of Powder Coating depends on the operational efficiency of the powder recovery system. The Cyclone Powder collector and powder feeder unit is simplest way to maintain high powder recovery upto 98% of the powder exhausted from the powder spray booth. Because of specially designed unique centrifugal action cycylone and controlled air velocity, we can assure the maximum powder recovery; to the extent of 98%. Air exhausted from powder booth contains oversprayed powder. This powder ladden air is fed into the cyclone at reasonably high velocity. This air-powder mixture is applied with unique rotory motion; which causes the powder particles to undergo a high centrifugal force. This causes throwing away of heavier powder particles from the air stream. The powder particles then drops down into the collection chamber due to specially designed hopper cone at the bottom.