PiezoDrive - Model SA Series -150V Piezo Stack Actuators

The SA actuators can be supplied with a thermoplastic sleeve which provides additional mechanical protection and insulates the electrode contacts. For this option, add “-B” to the part number, e.g., “SA050510-B”. Minimum order quantities and lead-times apply, except for the SA050510-B and SA050536-B which are available from stock.

Stack actuators should not be exposed to significant tensile loads, unequally distributed loads, off-axis loads, bending moments, or torque. To reduce mounting errors, a ceramic or stainless steel ball end can be used to interface the stack actuator to the load. Flexural mechanisms are also recommended.

Suitable adhesives cyanoacrylate, e.g. superglue gel, and general-purpose two-part epoxies, e.g. Loctite 3430. In applications where heat dissipation or operation at elevated temperature is required, Loctite 9466 is recommended.

The maximum recommended tensile load is 10% of the blocking force. In applications that require bi-directional forces or high-speed motion, a preload force is recommended with a magnitude greater than the maximum tensile load. This guarantees that the actuator is always in compression. The maximum recommended preload is 50% of the blocking force.

PiezoDrive stack actuators can be supplied with ceramic ball ends to improve the load distribution, simplify the mounting, and reduce bending moments during service. One or two ball ends can be specified by adding one of the following suffixes to the order code: -TBE (Top Ball End), -BBE (Bottom Ball End), or -2BE (Both Ball Ends). E.g. SA070718-2BE.