Three Lobes Blower TRUNDEAN TH Series Roots Blower was improved by raising the intensity, it helps preventing cent rotor and axis deviation from external influences. The rotor uses the most advanced one time work process Four-Shaft method in order to reduce man-made errors, enhance the precision of the leave wheel and promote the blower efficiently. The air compartment and the side cover of the blower have a flange and groove rim, which can not only strengthen the blower’s operational functions but also prevent eccentric phenomenal resulting from the fastening of the stud, which may shorten the life of the blower. Besides, noise and vibration reduction are the main emphasis in developing the new series of roots blower. The TRUNDEAN Blower rotor concept was adopted based on its flow characteristic which is very stable and even compared to the 2 lobes type, also coupled with the fact that it shows a considerable reduction of both noise and vibration. The extent of reduction can even allow the smaller unit to operate without the need of a silencer