BOSCH REXROTH
R039660731
All Other Products

For positioning loads weighing tons with absolute precision on micrometers, powerful pressing, joining or closing and unrestricted motion sequence variation: the Electromechanical Cylinders EMC Heavy Duty (EMC-HD) from Rexroth exploit the advantages of modern control technology even at high forces. The high rigidity of the units allows precise positioning in addition to high performance and dynamics. Parameters for force, position and travel speed can be set as required and flexibly adapted to new tasks at any time via the drive system.

The Electromechanical Cylinders EMC-HD for heavy loads transmit the motor movement via Ball or Planetary Screw Assemblies depending on the requirements on dynamics and force.

The Electromechanical Cylinders are based on proven ball screw assemblies in a wide range of diameter and lead combinations. The ball screw converts torque into linear motion with high mechanical efficiency. Both the nut and the piston rod are guided in the housing and the nut is prevented from rotating. Thus the linear displacement extends and retracts the piston rod, which is fastened to the ball screw nut.

A screw drive converts torque ino linear motion with high mechanical efficiency. During this process the piston rod fastened to the drive nut on the screw is extended or retracted. Both the nut and the piston rod are internally guided for perfect alignment.

The piston rod-to-housing-interface is sealed to prevent dirt from working its way in. The enire cylinder is protection class IP 65 certified. The EMC-HD is available with a round or a square piston rod. The latter acts as an internal anti-rotation feature together with a sqare slide guide in the cylinder housing.

Structural design

1 Threaded bolts (steel, burnished)

2 Key face, only for version “without anti-torsion element” (steel, galvanized)

3 Piston rod (chrome-plated steel)

4 Lube nipple (steel, galvanized)

5 Housing (steel, black painted)

6 Bearing housing (steel, black painted or galvanized)

7 Drive journal (steel)

8 Lock nut (steel, black galvanized)

9 Air compensation (bronze)

10 Mounting thread for switch (with locking screw steel, galvanized)

Attachment parts

11 Motor mount and coupling

12 Motor

13 Gear

14 Timing belt side drive

Structure of the EMC-HD