Microtweezer MTW
A piezo-driven microtweezer for pick-and-place — one jaw fixed, one jaw stepping in 0.25 nm increments across a 3 mm span.
One jaw fixed, one jaw driven#
The MTW-EM is a microtweezer plug-in: two arms, but only one moves. The other is mounted to a piezo-motor, so it steps in increments as fine as 0.25 nm while the fixed jaw holds a stable reference edge. Across a 3 mm span, that is enough range to open around a particle well outside the field of a typical nanoprobe tip, then close the gap in nanometre-scale steps.
Built for the pick-and-place in between#
At 26 mm total length, 14 mm tip length and 4 mm height, the MTW-EM sits between fine probing tools and bulkier handling equipment — sized for objects too large for a single sharp tip but awkward to place by hand under the beam. It operates from 273 K to 353 K, down to 10⁻⁷ mbar, and shares the MM3A-EM’s own positioning whenever a task calls for a grip rather than a point contact. Your existing micromanipulator system can be quickly and easily upgraded for use with the MTW-EM, in place of another tip holder.
Technical data
Dimensions
- Total length
- 26 mm
- Tip length
- 14 mm
- Height
- 4 mm
Performance
- Resolution (step size)
- 0.25 nm
- Maximum span
- 3 mm
Environment
- Temperature range
- 273 K – 353 K
- Lowest pressure
- 10⁻⁷ mbar
Advantages
Asymmetric piezo drive
- One tweezer arm fixed, the other piezo-driven
- 0.25 nm step size across a 3 mm span
- Coarse opening and fine closing from the same pair of jaws
Sized for the object, not the microscope
- Suited to micromanipulation and pick-and-place of small particles
- Swaps onto an existing MM3A-EM in place of another tip holder
Related products & accessories
Micro Gripper MGS2
A two-jaw micro-gripper that picks up, holds and repositions micro-objects inside the electron microscope.
View product
MM3A-EM
The industry-standard spherical micromanipulator — the platform every Kleindiek plug-in tool attaches to, with 3000+ units in the field.
View productTalk to an application engineer
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