Thread technology for parcel lockers

Technical data:

• What was needed: A locker system in parcel stations that offers users maximum ease of maintenance
• Requirements: 100 % lubrication and maintenance-free, quiet dry operation, mechanical resistance, easy implementation, low wear, withstands high loads
• Products used: dryspin® Lead screw, drylin® linear guide, iglidur® polymer plain bearing
• Success for the customer: In order to offer users maximum ease of maintenance, the engineers use polymer plain bearings from igus® in the electromagnetic guidance. They enable maintenance-free and quiet dry operation without external lubrication and score points for mechanical resistance. This also applies to the threaded spindles and linear guides used in the opening mechanism of the package compartments.

The locker system for parcels is used by the general public in a wide variety of places, e.g. outdoors, in the lobby, in offices, etc.. Therefore, the challenge was to enable the most instinctive use possible so that the product fits perfectly into the user's path. In addition, a very high service rate and therefore maximum ease of maintenance had to be guaranteed. The problems were: the simplicity of implementation, the simplicity of use over time (no grease and oil, no wear), the quality of movement (no noise, fluidity) and a certain mechanical resistance (authorised loads largely dimensioned in relation to the system).

The products from igus® are very suitable in this sense, as they are free of grease and oil. In addition, maintenance requires only periodic inspection. The dryspin® lead screws are installed in the SAS opening and module soldering. They provide less noise, less regular maintenance and reliability. The iglidur® polymer plain bearings are used in electromagnetic guidance and enable improved guidance and less friction. The drylin® linear guide is also installed in the SAS opening and also in the vertically motorised axis. There they can prevent noise and maintenance, are easily mounted and could convince with their size.