Ring Type Actuators
Actuators without housing
Bare Ring Actuators Without Preload - Series R
- High load capability, no housing
- Free aperture (9 - 14 mm)
- Motion range: 0 µm - 50 µm
- Max. force generation: 4 kN
- Stiffness: 330 N/µm
- Recommended for optical applications!
Actuators with casing stainless steel
Ring Actuators with Preload - series RA
- High load capability, stainless steel casing
- Free aperture (9 - 14 mm)
- Motion range: 0 µm - 50 µm
- Max. force generation: 4 kN
- Stiffness: 330N/µm
- Recommended for optical applications!
Ring Actuators with High Force Potential
Actuators without housing

Bare Ring Actuators Without Preload - Series HPSt
- High load capability, no housing
- Free aperture (5/8/15/25 mm)
- Motion range: 0 µm - 130 µm
- Max. force generation: 35 kN, max. voltage: 1000 V
- Recommended for use under High Loads!
Actuators with casing stainless steel

Ring Actuators with Preload - series HPSt VS
- High load capability, stainless steel casing
- Free aperture (5/8/15/25 mm)
- Motion range: 0 µm - 130 µm
- Max. force generation: 35 kN, max. voltage: 1000 V
- Recommended for use under High Loads!
Characteristics Ring Type Actuators
Ring actuators by piezosystem jena were specially developed to meet the high demands of the optical industry. They are characterized by high stiffness, high accuracy, high dynamics and high guidance accuracy. Furthermore, the ring actuators contain an aperture – up to 14 mm, depending on the individual model – to let light travel through. For applications requiring high forces, piezosystem jena offers the series HPSt and HPSt VS of its Piezocomposite line of products.
If you wish to get more information about our piezo actuators, please use the contact form or write us at info(at)piezojena.com or call +49 03641 66880.