JD4-40P Dovetail Rack & Pinion X-axis Stage

The JD4-40P manual positioning stage is a vertical Z-axis dovetail linear slide powered by rack and pinion transmission, designed for vertical height fine adjustment in optical focusing, component inspection benches and compact laboratory instruments. Equipped with a 40×40mm tabletop pre-drilled with standard threaded holes, this stage provides a stable mounting plane for optical lenses, test probes and small specimen fixtures. It delivers ±10mm of vertical travel, perfectly suited for short-stroke height calibration tasks on optical breadboards and compact test rigs.

Built-in vernier scale grants 0.1mm readable resolution, allowing operators to read position values clearly and realize repeat positioning during repeated calibration work. It features 120μm static parallelism and maintains 30μm driving parallelism throughout the whole travel path, keeping steady sliding flatness during manual vertical manipulation. The rated load capacity reaches 1.5kgf, which can reliably support lightweight optical and measuring components.

This positioning stage is constructed from aluminum alloy and undergoes black anodizing surface treatment, enhancing wear resistance and anti-corrosion performance to defend against scratches and oxidation in laboratory and light industrial environments. With a total weight of 0.47kg and X-type base plate, it can be directly fastened onto test platforms and easily combined with other single-axis stages.

The rack & pinion driving mechanism enables rapid manual height adjustment, helping users finish vertical position calibration faster compared with screw-driven manual stages. Users can stack this Z-axis unit with X and Y single-axis stages to build XY or XYZ multi-axis positioning systems to meet complex multi-dimensional adjustment demands. Widely applied in laser focusing alignment, micro component testing and optical equipment height debugging, this manual stage also accepts custom machining such as mounting hole modification to match unique installation requirements of different customers.