Principles of the Roots Type Blower

Each rotor of a Roots type blower turns at an equal speed but in the opposite direction to the other. This is achieved by using a pair of equal ratio gears to drive the rotors. Using this type of configuration, blowers can run without internal lubrication to the rotors, as they never come into contact with either the outer casing or each other, thus air is delivered completely oil free.
As the rotors turn, air is drawn into the inlet side of the blower and travels around the outer casing of the machine in the pockets between each lobe of the rotor. Once at the discharge side of the blower the air is forced out and stopped from passing back into the chamber by the finite clearances between all its internal components. The tiny amount of air that does manage to pass back through these minute clearances is what's known as the blowers “Slip”.
There is no change to air volume within the blower (i.e. no air compression takes place). The air is simply displaced from the intake side, to the discharge side of the blower, against the resistance of the system pressure. Roots blowers are therefore able to deliver a constant airflow, independent of the discharge pressure conditions, and the rate of flow is largely determined by the blowers operating speed.

The Pneuvay LT series three lobe roots type blowers are a new series of roots type blowers. The three lobe design provides better air performance, lower vibrations and noises. It is a significant improvement on the traditional two lobe roots blowers.

Traditional roots blowers lubricate bearings and gears with grease and oil, but the Pneuvay LT series is designed to add oil only. It is very easy to maintain as oil has better lubricating properties than grease

A few of the benefits of the Pneuvay blowers are:

• Lower energy consumption
• Lower noise levels
• Larger bearing life

Pneuvay Engineering blowers are suitable for both pressure and vacuum applications, for a myriad of different situations. Some examples are:

• Food Processing
• Textile Drying
• On-road Machinery
• Vacuum moulding Pneumatic
• Plastics
• Pneumatic conveying Water A
• Oyster Washing
• Water aeration
• Garment Presses
• Grain conditioning
• Dust Collection

Pneuvay Engineering supply Roots type blowers for all applications. Although these are used as either blowers or exhausters, they tend to be referred to as "blowers".

Pneuvay Engineering chooses to supply the renowned Wade blowers. These are manufactured with twin rotors with extremely close tolerances - ensuring maximum energy efficiency.

Wade blowers are suitable for both pressure and vacuum applications, for a myriad of different situations. Some examples are:

• Food Processing
• Textile Drying
• On-road Machinery
• Vacuum moulding Pneumatic
• Plastics
• Pneumatic conveying Water A
• Oyster Washing
• Water aeration
• Garment Presses
• Grain conditioning
• Dust Collection