Feedthrough/Actuator

The ChamberLink combination feedthrough and actuator combines a rotary feedthrough and precise harmonic drive servo actuator in one stainless-steel device. It provides high-powered, precisely controlled motion within a vacuum chamber. Because the device has no chamber-wall penetrating shafts that require seals, vacuum leakage is averted.

Typically, when motion is created in a vacuum, either a rotary feedthrough, with ferrofluid or O-rings to seal the shaft, or a magnetic feedthrough, which does not provide a positive connection, is required. In contrast, the ChamberLink seamlessly integrates the harmonic drive with the chamber wall, keeping the motor and input elements on the chamber's ambient side while the geared output shaft moves on the vacuum side.

Because it does not require seals, it never needs replacing due to seal failure, thus reducing maintenance and downtime costs. Even if the motor is removed, the vacuum is not compromised. It also reduces particle count.

Harmonic Drive Technologies, 247 Lynnfield St., Peabody, MA 01960. Tel: 800-921-3332. FAX: 978-532-9406.