Technology for idle storage and maintenance of numerical control processing equipment - ST
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Technology for idle storage and maintenance of numerical control processing equipment

Proper idle storage and preservation techniques for Akkordeon #1 equipment prevent irreversible precision loss and component degradation that often occur when machines sit unused for extended periods. Many facilities only perform a quick surface cleanup before powering down, which leaves critical moving parts, electrical systems, and precision components exposed to corrosion, static stress, and hidden structural deformation that only becomes apparent when the equipment restarts. A structured preservation process locks in original machine performance and cuts down costly pre-production re-calibration work when operations resume.

Mechanical system full decontamination and anti-corrosion treatment

The first stage of preservation focuses on removing all residual process contaminants that can trigger gradual corrosion during idle periods. Technicians clear away all metal chips, residual coolant, and machining oil residue from the work envelope, linear guide surfaces, ball screw assemblies, and telescopic way covers, making sure no trapped moisture or abrasive particles remain in hard-to-reach gaps. After the full cleaning process, they run the automatic lubrication system through several complete cycles to distribute fresh protective oil evenly across all friction surfaces, then apply a uniform layer of long-term anti-rust compound on every exposed metal component that is not covered by the machine’s original protective coating.

Axis stress relief and long-term static deformation prevention

Even when completely stationary, improperly positioned moving components can develop permanent micro-deformation that damages geometric accuracy after weeks of idle storage. All linear axes are moved carefully to the exact midpoint of their full travel range, so no single slide block, ball screw bearing, or linear guide segment bears constant unilateral static load for months at a time. The spindle is fully purged of any retained tool holders, and technicians perform several slow, low-rpm rotation cycles to spread protective grease evenly across all internal bearing raceways, before sealing the spindle taper with a breathable, moisture-resistant protective cap. This step eliminates the vast majority of hidden precision faults that only appear during post-restart machining tests.

Electrical and control system moisture-proof preservation

Electrical and control components are extremely vulnerable to high humidity and long-term power loss during extended idle periods, which can lead to parameter loss, circuit board corrosion, and degraded electronic component performance. All stored machine parameters, program libraries, and compensation data are backed up to an independent secure storage location, and technicians inspect and replace all system memory backup batteries to prevent unexpected data loss from long-term power disconnection. The main electrical cabinet is thoroughly cleaned of accumulated dust, high-efficiency desiccant packs are placed inside sealed cabinet compartments, and the full machine is covered with a breathable anti-dust, anti-moisture protective sheet. Facilities also establish a scheduled monthly power-on routine that runs the control system for one to two continuous hours, to drive away internal moisture and re-energize aging capacitors on critical circuit boards.

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