Lubrication-free miniature linear module for hygienic automation

In medical analysis devices and automated laboratory systems, demand is increasing for compact and precise motion solutions that comply with stringent hygiene and regulatory requirements. The new drylin SLW-0620-Ds08 from igus is a screw-driven miniature linear module that combines long travel distances with a fully lubrication-free design, making it suitable for continuous automation processes in sensitive environments.

Technical background and application areas
In applications such as pipetting robotics, automated sample handling, and diagnostic systems, conventional miniature linear modules often reach their limits at longer strokes due to vibration, or they rely on lubricants that pose contamination risks. The drylin SLW-0620-Ds08 was developed to address these constraints, offering a solution specifically designed for hygienically critical environments.

With a height of 22 mm and a width of 32 mm, the module can be integrated into space-constrained systems. Typical applications include laboratory robots, medical analysis instruments, and automation equipment used in regulated environments within medical technology and laboratory automation.

Screw concept and performance data
The linear module uses a dryspin high-lead screw with a pitch of 40 mm per revolution. This design enables travel speeds of up to 200 mm/s while maintaining smooth, low-vibration operation. An 8 mm screw diameter increases stiffness and reduces oscillation over stroke lengths of up to 300 mm.

The specified maximum axial load capacity is 50 N, with permissible radial loads of up to 200 N. In internal endurance testing, the module achieved 877,000 double strokes under a load of 30 N, indicating suitability for repeatable positioning tasks in continuously operating automation systems.

Dry-running design and regulatory considerations
A key feature of the module is its completely lubrication-free operation. The carriage moves on a set of high-performance polymer plain bearings along an aluminum rail. Solid lubricants integrated into the bearing material enable low-maintenance dry running while minimizing the risk of particle emission or lubricant-related contamination.

The bearing material used, iglidur JPF, is free of PTFE and has been tested for PFAS compliance. This material selection supports compliance with current and emerging regulatory requirements, particularly in medical, diagnostic, and laboratory automation applications.

Positioning within the automation landscape
By combining a compact form factor, long stroke capability, lubrication-free operation, and PFAS-compliant materials, the drylin SLW-0620-Ds08 fills the gap between conventional miniature linear technology and larger linear systems that require significantly more installation space for comparable travel lengths.

The module is available in silver- or black-anodized versions and integrates into the drylin modular system for linear motion solutions used in medical technology and laboratory automation.

www.igus