EMG ESZ Electro-Servo Cylinder
EMG ESZ Electro-Servo Cylinder
The EMG ESZ Electro-Servo Cylinder is an advanced control and positioning cylinder, designed for high-precision linear applications across various industrial sectors. Utilizing a planetary gear thread (PGT), this cylinder converts rotational movement from a three-phase motor into a linear stroke, ensuring efficient and accurate actuation while minimizing friction and wear.
Main Features and Benefits
- Compact design offers high drive speed with a small motor torque
- High positioning accuracy and repeatability
- Low friction for robust, long-lasting performance
- Clean and environmentally friendly operation with minimal maintenance
- Suitable replacement for hydraulic or pneumatic cylinders
- Integrated position transducer and limit switch option
- Operates without inflammable media, providing reliable safety
Custom Options
- Folded bellows for pushrod protection against dirt
- External position indication switches (mechanically positioned on-site)
- Optional electrical locking brake with release on power loss
- Cardanic mounting to prevent critical lateral forces
- Activation and positioning via frequency converter and control amplifier
- Separate motor ventilation for demanding environments
- Alternative mounting types upon request
Technical Specifications
- Maximum force: 10, 25, 50, and 100 kN
- Protection class: IP54
- Ambient temperature: 0 … +50 °C (up to 70 °C with separate cooling fan)
- Nominal stroke: 100 – 700 mm
- Nominal speed: 30 mm/s (adjustable by frequency converter)
Lubrication and Maintenance
- Recommended lubrication every 5,000 operating hours (10–20 cm³)
- Optional automatic lubrication control via operating hour counter (up to 3 years)
- Battery-controlled automatic lubrication available for up to one year
Areas of Application
- Steel, automotive, and aluminium industries
- Exact positioning of mechanical components, butterfly valves, nozzles, and rotors
- Handling systems and strip guiding in thermal processing lines
- Coilers with medium weights and general linear actuation needs
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
