Linear Motion and Rotation Stages for Vacuum Systems

Linear motion and rotation stages play a central role in many vacuum systems, particularly where accurate positioning, controlled movement, and stable thermal processing need to work together. In these environments, movement directly influences process quality, repeatability, and system flexibility.

Thermic Edge has developed a range of linear manipulators and rotary feedthroughs designed to integrate with heater stages and wider vacuum systems. These solutions support sample rotation, heater rotation, sample transfer, and positioning relative to a source, offering a practical and cost effective approach across a wide range of applications.

Why Controlled Motion Matters in Vacuum Systems

Vacuum processes often require more than static positioning. Many applications depend on the ability to move a sample into place, rotate it during processing, or adjust its position relative to a source without breaking vacuum conditions.

This level of control improves alignment and consistency, particularly in systems such as vacuum furnaces and deposition setups, where thermal and positional accuracy must work together.

In research environments, this leads to more reliable results. In production, it supports repeatable performance and reduced process variation.

Designed for Stability and Precision

Thermic Edge linear manipulators are built using Conflat flanges connected by edge welded bellows. Aluminium yolks provide strength while maintaining a manageable overall weight.

Two guide bars run alongside the bellows assembly, helping to reduce bending on the travelling flange and easing stress on the lead screw. This supports controlled movement and long term reliability.

For applications where precision is critical, manual systems are fitted with digital linear scales offering 100 μm resolution. Mounting options for encoders and limit switches are also available, allowing integration into more advanced control systems.

Flexible Movement and Stroke Options

Standard stroke lengths of 50 mm, 100 mm, and 250 mm are available, with larger configurations extending up to 1000 mm on request.

Where standard Z shift designs are not suitable, self supporting structures can be built from the stage flange. This improves rigidity and reduces deflection under load, particularly in more complex systems.

These capabilities are particularly useful when integrating motion into systems using versatile heaters or custom thermal setups.

Rotary Feedthrough Solutions

Rotary feedthroughs allow motion to be introduced into a vacuum system while maintaining a sealed environment. Thermic Edge solutions use a central shaft sealed with Viton seals, supported by low friction bearings within a stainless steel housing.

For high vacuum applications, Viton sealed feedthroughs provide a reliable and cost effective option. For more demanding environments, magnetic and ferrofluidic feedthroughs are available for ultra high vacuum systems.

These systems are often used alongside graphite heating elements, where stable positioning and controlled heating must operate together.

Manual, Motorised, or Integrated Control

Linear motion and rotation stages can be operated manually or integrated into a PLC controlled system. Options include manual handles, pneumatic actuators, and stepper or servo motor driven configurations.

This flexibility allows systems to scale from simple laboratory setups through to fully automated industrial processes, including those using advanced ceramic coatings in high temperature environments.

Applications Across Research and Industry

These systems are used in applications such as sample rotation during deposition, heater positioning, sample transfer, and alignment relative to a source.

They are particularly valuable in environments where precision, repeatability, and vacuum integrity are critical, including advanced materials research and high temperature processing.

Built for Integration, Not Limitation

A key advantage of Thermic Edge solutions is the ability to provide both standard and bespoke designs. Rather than forcing a system to fit a fixed component, stages can be adapted to match the application.

This approach improves integration, reduces compromise, and ensures compatibility with wider systems such as vacuum furnace platforms and custom heater assemblies.

Conclusion

Linear motion and rotation stages are a fundamental part of many vacuum systems, enabling controlled movement while maintaining vacuum integrity. Their role in positioning, alignment, and process control makes them essential across a wide range of technical applications.

With a combination of standard options and bespoke engineering, Thermic Edge provides reliable solutions for systems that require precise and dependable motion.