Z-Focus Axis Actuator Achieves Unmatched Precision and Stability

Precision and stability are no longer just desirable in many high-tech applications; they’re essential. Whether you’re in life sciences, semiconductor, metrology, or any field where dynamic focusing and ultra-fast settling times are critical, the ability to control positioning down to the nanometer level can dramatically improve your results. Enter the Parker ZFA Series: a game-changing solution that redefines what's possible in precision linear stages with advanced motion control systems.

The Value of Precision

For machinery and instrument builders, achieving nanometer-level stability is a game-changer. The Parker ZFA Series, when used with an advanced motion control system, delivers unprecedented control, ensuring that every movement is precise, every adjustment is exact, and every operation is reliable. In industries like digital pathology and Next-Generation Sequencing, where image quality can make or break an analysis, this level of precision transforms workflows and outcomes.

The Parker ZFA Series doesn’t just enhance image quality; it accelerates processes. By combining ultra-low settling times with rapid step-and-settle capabilities, the ZFA allows systems to move faster and more accurately. The result? Higher throughput, reduced downtime, and increased efficiency—all critical factors in a competitive market where every second counts. 

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Selecting the right controller solution

Mechanical performance isn’t just about the mechanics. To hit ultra-high precision and stability, choosing the right electronics to control the mechanics becomes critical.  Consider the performance differences between these controller & drive solutions with the same ZFA actuator. 

More common servo drives do not perform as well with:

• Longer Settling Times
• More Over-Shoot
• Lower Bandwidths 
   

 Stability Redefined

Stability is not just about standing still; it’s about standing still with purpose. The ZFA Series provides industry-leading natural frequencies that ensure stabilities on the nanometer scale, offering unmatched control even during high-speed operations. This means less vibration, more consistent results, and ultimately, a significant reduction in errors and maintenance costs.

For industries that rely on delicate measurements—like semiconductor and metrology—stability directly impacts accuracy. With the ZFA, you can trust that your instruments will maintain their positioning with unparalleled reliability, reducing the need for recalibration and minimizing downtime. 
 

Seamless Integration for Maximum Flexibility

The Parker ZFA Series isn’t just about performance; it’s about integration. Built with the modern machinery builder in mind, the ZFA offers flexible installation options that allow it to fit seamlessly into new or existing instruments. Its compact form factor and configurable features enable you to easily adapt the positioner to your specific needs, enhancing design freedom and reducing engineering time.

Moreover, with integral carriage and base datum features, the ZFA facilitates precise alignment and effortless assembly, whether at the factory or in the field. This adaptability means you can bring cutting-edge precision to your products without complex reengineering, making it easier than ever to upgrade your systems with the latest technology.

Driving Innovation Across Industries

The impact of the Parker ZFA Series goes beyond just one industry—it’s driving innovation across multiple sectors. In life sciences, the ZFA enhances imaging systems, reducing cycle times and improving image resolution, ultimately advancing research and diagnostics. In the semiconductor industry, it provides the stability and accuracy needed for high-stakes measurement tasks, ensuring consistent performance.

But the benefits don’t stop there. The ZFA’s robust design and superior encoder technology make it a versatile solution for any application that demands high precision and reliability. From digital imaging to dynamic inspection systems, the ZFA’s capabilities empower engineers to push the boundaries of what’s possible.
 

Key Features

• Nanometer-Level Performance: The Parker ZFA Series boasts industry-leading natural frequencies, providing stabilities on the nanometer scale. With single-digit nanometer resolutions, it facilitates rapid step-and-settle moves, enhancing image quality and throughput.
• Compact Design: Featuring a 95 x 90 x 36 mm form factor, the ZFA Series is compact yet robust, fitting seamlessly into a wide range of instruments and machinery setups.
• High Load Capacity: The internal magnetic counterbalance supports up to 1 kg of objective mass, while the optional external counterbalance increases capacity to 2 kg, enabling the use of larger lenses for broader fields of view.
• Advanced Motion Control: Equipped with a high-dynamic voice coil drive and precision cross-roller guidance, the ZFA Series is built for smooth, accurate motion without wear over time when paired with an advanced motion controller.
• Superior Encoder Technology: The ZFA Series includes high-resolution linear encoders with incremental and analog options, achieving exceptional positional accuracy at nanometer-level resolution.
• Ease of Integration: Integral carriage and base datum features facilitate easy alignment and integration into both new and existing instruments. Optional factory-aligned objective brackets streamline the instrument assembly process.

Applications and Industries

• Life Sciences: Enhances imaging system performance, reducing cycle times and improving resolution for applications such as microscopy, digital pathology, and Next-Generation Sequencing.
• Semiconductor Metrology: Delivers the stability and accuracy required for critical measurement tasks, ensuring consistent, reliable results.
• Other Imaging Environments: Ideal for any dynamic imaging setup requiring precise, rapid positioning with minimal maintenance needs.

See more information on the ZFA Series Optomechanical Focusing Nano Positioner