DD Series Compressors
Direct Drive Rotary Screw Air Compressors
DIRECT DRIVE – LONG LIFETIME
The most important advantage of direct-driven series air compressors is that it has long life time. Motor and airend are coupled directly in Direct Driven Series air compressors. The loads on the bearings are quite low and it has much longer-life bearings in this type of compressors. Disadvantage of this type of compressors is that their pressures cannot be changed. It is usually used in connection with 1:1 or with transmission connection.Direct coupled compressors are durable and have a long service life, noise level is lower than the belt driven series. The motor and airend groups are fitted on a single chassis, which is connected to bottom tray by vibration wedges in all of our compressors.
Consequently, the vibration of compressor is prevented completely by the way it works without any vibration. Both motor and airend are assembled (coupled) directly in Direct Driven Series air compressors. The loads on the bearings are quite low and it has much longer-life bearings in this type of compressors. Disadvantage of this type of compressors is that their pressures can not be changed. It is usually used in connection with 1:1 or with gear (transmission) connection. Direct coupled compressors are durable and have a long service life, noise level is lower than the belt driven series.
SILENT TECHNOLOGY
Tamsan Direct Driven series air compressors have an extra advantage as silent technology. These types of compressors have not pulleys and belt. For this reason, max RPM of airend is same value with motor RPM. As an advantage, noise level of compressor is minimized. Also the forces on the radial side is eleminated and the bearing life time is extended.
MINIMUM ENERGY, MAXIMUM PERFORMANCE
The most important feature of the Servo rotary screw air compressors are provide energy saving between 20% and 50% compared to stationary star delta rotary screw compressors. These types of compressors provide extra energy savings between 8% and 10% than normal type VSD series rotary screw air compressors. Because, Normal type VSD compressors have an asynchronous motor and these motors can reach 88% and 90% efficiency. However, Servo series rotary screw air compressors have synchronous motor. These motors can run up to 96% efficiency. Therefore, they are known as First Class energy-saving motors. The following graphic compares
efficiencies of normal type motor with servo motor. Wendel Servo rotary screw air compressors have a structure in which screw unit and high efficient synchronous motor are integrated in air compressors. Also it takes less space due to it has small size and compact design.
SMART CONTROL SYSTEM
Air capacity and system temperature are automatically adjusted by Smart Control System. The compressor operates at the constant temperature and it is very easy to control the system. Magnetic field design and distribution of intensity are at reasonable levels. The speed of the engine operating frequency does not affect the working volume of the compressor. Size of the servo motor is equal to the 1/3 of the normal synchronous motor. Therefore, its maintenance is so easy.
STABLE AIR SUPPLY
SMART DESIGN
RELIABLE SYSTEM – EASY TO MAINTAIN
Constant air supply is provided thanks to the PID controller of the inverter or the inverterʼs speed adjustment feature. As it can be understood from the figure shown on the right, there is no power transmission element between the rotary screw unit and servo motor. The male rotor shaft of the screw unit is also the shaft of servo motor. For this reason, the efficiency is at the maximum level. At the same time, the shaft is fixed with the bearing at the rear section of the motor. This ensures the energy saving by reducing friction of the shaft and minimises the noise level. In addition, the space advantage is provided due to the compact structure of the system.
DD Series
