Hygienic Lead Screws and Nuts for the Medical Industry

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Lead screw assemblies used in medical lab equipment need to meet strict performance and hygienic requirements. Most metallic lead screws and nuts require lubricating grease to be regularly applied, making them unsuitable for such applications. dryspin® lead screw assemblies, on the other hand, have built-in solid lubricants that allow for consistent, reliable operation without the need for grease or other external lubricants that can cause contamination.

dryspin lead screw assemblies are also vibration damping, which reduces noise during operation and ultimately improves patient comfort, especially in console adjustments and other patient-facing medical furniture & equipment.

Our lead screw configurator is available to help customize and request a quote for your lead screw assembly in 20 minutes or less, and offers accurate service life estimates based on application requirements. A number of different lead screw nut materials are available, including FDA-compliant materials. We can even 3D print custom lead screw nuts with our wear-resistant printing materials for applications requiring more specialized components.

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igus® Lead Screw Assemblies

Configurable online
Sleeve, flange, & low-clearance lead screw nuts
Stainless-steel or aluminum lead screws
Accessories for specific requirements

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Molded Parts for Production

Custom lead screws and nuts
3D printed prototypes
Injection molded options
SLS powder, FDM filament, & DLP resin

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Application Stories

Blister Center

Automated drug handling for pharmacies: with more than 7,500 systems installed worldwide, Becton Dickinson's Rowa systems are leaders in this market. In addition to the automated storage of medicines and digital systems for the salesroom of pharmacies, BD Rowa offers the Rowa Dose System a solution that compiles individual combinations for patients from up to 700 medicines and blisters them.

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Visual Field Perimeter

To develop a perimeter device for measuring visual field sensitivity, the application required a compact, hygienic, and maintenance-free solution suitable for medical environments. igus® met these needs with drylin® N flat guides and dryspin® trapezoidal lead screws with matching nuts, providing a 100% self-lubricating system. This ensures smooth, reliable motion without the need for maintenance, while also preventing dust and dirt accumulation—making the device ideal for hygienic, long-term use.

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Filling Plant in Lab

A fully automatic IVD filling plant that eliminates the use of grease and external lubricants to operate under cleanroom conditions. To fulfill the need for cleanroom suitability, dry-running operation, precision, and low weight, igus® supplied a trapezoidal lead screw nut made of iglide® L280, a trapezoidal lead screw made of AISI 304 stainless steel, and drylin® miniature guides. The result is a fast-available, maintenance-free solution that ensures precise motion in clean environments without lubrication.

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Bionic Hand Prosthesis

The Polish company Aether Biomedical is building a bionic hand prosthesis. Its control system is based on EMG signals that come from the patient's muscles. Up to 152 N can be applied, giving the wearer a strong grip - for carrying bags weighing up to 35 kg, for example. To move the fingers precisely, the engineers rely on our smooth-running, lubrication-free and quiet dryspin® threaded spindles and lead screw nut.

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Birth Simulator

With the birth simulator SIMone, 3B Scientific GmbH has an important tool in its product range for the training of gynaecologists and midwives. The mechatronic features are complex: force, moments, direction and path the obstetrician uses to help the plastic foetus out of the womb are accurately recorded. Maintenance-free and lubrication-free linear bearings and lead screws from igus make a contribution to the optimally simulated birth process.

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Life Cycle Calculator

drylin® Lead Screw Drive Expert

Start with selecting your product and calculating its service life, then take that product to the lead screw configurator for custom machining and generate a dimension drawing before making your purchase.

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Custom Machining Tool

drylin® Lead Screw Configurator

Start with designing your custom lead screw and generate a custom dimension drawing, then bring that screw to the lead screw drive expert for a life cycle calculation before making your purchase.

Use the Configurator