Locking elements
Cylinder attachments and accessories
Festo locking elements hold the piston rod of a pneumatic cylinder in its current position even when operating pressure is lost or the cylinder is exhausted. The range includes locking cartridges of the KP series (bores 4 to 32 mm, holding forces 80 to 7500 N) and complete locking units KPE (bores 4 to 32 mm). For newer actuators, DADL electric locking units (bore 16 to 40 mm) and DADL-EC clamping elements are also available.
| Type | Bore (mm) | Holding force (N) |
|---|---|---|
| KP-4-80 | 4 | 80 |
| KP-6-180 | 6 | 180 |
| KP-8-350 | 8 | 350 |
| KP-10-350 | 10 | 350 |
| KP-12-600 | 12 | 600 |
| KP-16-1000 | 16 | 1000 |
| KP-20-1400 / -2000 | 20 | 1400 / 2000 |
| KP-25-5000 | 25 | 5000 |
| KP-32-7500 | 32 | 7500 |
Typical applications: Lifting axes requiring fall-arrest protection on pressure loss, clamping fixtures that must maintain clamping force after exhausting, work machinery with safety requirements at the piston rod rest position, and vertically mounted cylinders carrying a load weight on the piston rod.




