“I hereby confirm that the unit has been installed and is working perfectly.”

Translated excerpt from the customer’s German message following the overhaul of a Mitsubishi SJ-VL5.5-10ZM AC Spindle Motor. The customer is a manufacturing business in the Padua area of northern Italy that machines mechanical components to customer requirements.

Vibration and overheating before repair

The incoming fault report described the motor oscillating when the C axis was set to zero. After several operating hours, the component described in that report as the “Messtaster” (measuring probe) overheated and error 46 appeared.

Our workshop findings on the motor: the fan was defective, and in this particular case error 46 was associated with overheating. The encoder was also contaminated and could no longer operate properly.

Complete spindle motor overhaul

We restored the cooling system, renewed the bearings and seals, and thoroughly cleaned the motor, including the encoder. The necessary adjustments were carried out. The motor was then painted with industrial paint according to specification. A test run was recorded on video.

Correct operation confirmed after installation

The customer subsequently confirmed installation and correct operation. This statement reflects the situation at the time of the feedback; no specific operating duration was provided.

“Thank you again and have a nice day.”

We would also like to thank our customer for the trust placed in our work and for the kind feedback.

Overhaul video and photographs

The video and photographs document the motor at industrypart. Confirmation of operation after installation comes from the customer’s written feedback.

Further repair cases

Further technical articles are available in our repair article on the Mitsubishi SJ-VL5.5-10ZM.

About this customer feedback: Based on written customer feedback. Quotations are translated excerpts from the original German message. industrypart added the context and technical background. The customer’s name and company name are not published.