Precision Micrometer (FLMM Series)

Precision Linear Feedthroughs

Thermionics’ FLMM series is a metal-sealed linear motion micrometer driven feedthrough that is all metal, using welded bellows and stainless steel linear bearings.  All manual units are bakeable to 200°C fully assembled. Higher bakeouts may be used with partial disassembly.  These feedthroughs are also available with a number of custom options.

FLMM-133-25 Series

• 1/4″ O.D. probe
• 1.33″ O.D. mounting flange
• 1″ or 2″ stroke
• Micrometer actuated, 40 turns/inch, pre-loaded coupling
• 3″ minimum flange face to probe tip
• Stainless steel bellows sealed
• Stainless steel linear shaft bearing
• Maximum bakeout temperature: 200°C

FLMM-275-50 Series

• 1/2″ O.D. support shaft
• 2.75″ O.D. mounting flange
• 1″ or 2″ stroke
• Micrometer actuated, 40 turns/inch, with pre-loaded micrometer-to-probe coupling
• Stainless steel bellows sealed
• Maximum bakeout temperature: 200°C