EMG ESZ Electro-Servo Cylinder
EMG ESZ Electro-Servo-Cylinder
The Electro-Servo-Cylinder developed by EMG is used as a control and positioning cylinder. It converts by means of a Planetary Gear Thread (PGT) the rotation generated by a threephase current motor into a linear movement. The function principle is based on a rolling motion at low friction and consequently low wear.
The standard model of the Electro-Servo-Cylinder consists of the following components:
- threephase asynchronous motor
- spindle with planetary gear thread, thrust housing and piston rod with knuckle
- rotating lock of piston rod
- housing with pivot
Description
Customer's benefit:
Customer's benefit:
- compact design without gear
- high drive speed, small motor torque
- high positioning accuracy
- low friction, robust and reliable
- clean and environmentally friendly
- requiring little maintenance
- long service life
- easy replacement of hydraulic or pneumatic cylinders
- compact design at high power transmission
- integration of position transducer and limit switch in ESZ
- operation without inflammable media
Technical data:
Technical data:
Max. force (no nominal force): 10; 25; 50 and 100 kN
Protection class: IP 54
Ambient temperature: 0 … +50 °C; …70 °C with separate cooling fan
Nominal stroke: 100 … 700 mm
Nominal speed: 30 mm/s, controlled by frequency converter
Lubrication and maintenance:
Lubrication and maintenance:
- recommended lubrication of the planetary gear thread with 10-20 cm3 after approx. 5000 operating hours
- option: automatical control of lubrication of the ESZ via overlaid counter of operating hours with an adjustable lubrication of the cylinder of up to three years (“automatic lubrication”)
- option: battery controlled automatic lubrication with precise lubricant allocation over one operating year. Battery and lubricant available as one device.
Technical features:
Technical features:
- used as control or position actuator with high demands on resolution and repeatability
- alternative to hydraulic or pneumatic cylinders
- exact positioning of parts
- precise adjustment of butterfly valves, nozzles and rotors etc.
- bigger handling systems
- steering rolls for strip guiding, especially in thermal processing lines
- coiler with medium weights
- all kinds of linear actuation
Customer benefit and unique selling point
Customer benefit and unique selling point
- Customer-specific design and optimization
- High reliability in all application areas
- Low space requirement
- Industries to use it: Steel, Automotive, Aluminium
Data sheet
DATA SHEET
