JD3-40P Dovetail Rack & Pinion X-axis Stage

The C&K JD3-40P is a compact X-axis manual dovetail stage designed for light-load linear positioning in laboratory testing, optical alignment and small inspection equipment. It adopts a precision dovetail guide structure driven by rack and pinion transmission, providing smooth manual movement and responsive position adjustment for short-stroke applications. The 40×40 mm work surface offers a compact mounting platform for optical elements, sensors, miniature fixtures and small measurement components, while the ±10 mm travel range covers most fine horizontal positioning requirements in experimental setups.

Fitted with a vernier scale, the stage delivers 0.1 mm readable resolution, enabling operators to observe and record displacement changes conveniently during repeated positioning operations. It achieves 50 μm parallelism and 30 μm driving parallelism across the full travel stroke, helping to maintain stable guiding accuracy and consistent platform flatness during manual sliding. With a load capacity of 1.5 kgf, it can support lightweight test assemblies without compromising adjustment stability.

Constructed from aluminum and finished with black anodizing, the JD3-40P provides good surface hardness, wear resistance and protection against mild oxidation in laboratory and industrial environments. Weighing only 0.17 kg, this ultra-light stage is particularly suitable for applications where low unit mass and easy integration are important. Its base-plate mounting design allows straightforward installation into compact equipment frames, test jigs or optical benches, and it can be combined with other manual stages to build multi-axis positioning systems for more complex adjustment tasks.

Typical applications include optical component alignment, micro-sensor positioning, small-specimen inspection, experimental fixture adjustment and light-load precision assembly. The rack-and-pinion dovetail mechanism ensures clear operation and fast manual positioning, making it a practical choice for research laboratories, testing departments and compact automation equipment integrators. Custom mounting-hole modifications and application-specific adaptations are available to meet different installation requirements.