M-631, M-632, M-633 Precision Micrometer Drives with Non-Rotating Tip

M-631, M-632, M-633

• 10, 25 and 50 mm Travel
• Pitch 0.5 mm/Rev.
• Low Friction Construction
• 1 µm Manual Sensitivity
• Sub-nm Resolution with Optional PZT Actuator

M-631 through M-633 micrometer drives feature an extremely low stiction/friction construction allowing for ultra-high resolution. The non-rotating tip design offers the following advantages over conventional rotating tip micrometer drives:

• elimination of torque-based stage platform tilting
• elimination of wear at the contact point
• elimination of tip angle dependent wobble

M-631 through M-633 micrometer drives are also employed in the PI DC-Mike and Stepper-Mike motorized actuators featuring sub-micron resolution (see page 7.46, 7.48). All models come with standard flat tips. click here for spherical tips and other options.

An optional piezo tip provides 20 µm travel with sub-nanometer resolution for dynamic scanning and tracking (click here).

For mounting, the micrometers are clamped around the 19 mm diameter. Clamping around the 16 mm diameter sleeve should only have a supporting function; high forces at this point will increase friction and reduce accuracy and resolution. For the same reason lateral forces on the tip must be avoided.