We bring the equipment to you. On-Site Spindle Repair LLC restores your CNC spindle tapers to factory specification — in place, in the machine — minimizing downtime and eliminating costly teardown.
On-Site Spindle Repair LLC is a mobile precision grinding company serving manufacturers across the continental United States. We specialize in one thing: getting your spindle taper back to specification without taking your machine apart.
A worn or damaged spindle taper causes runout, poor tool life, and scrapped parts. Our on-site service eliminates the need to remove the spindle — we bring precision grinding equipment directly to your facility and grind the taper true in the machine, ensuring maximum concentricity to your spindle bearings.
We grind your spindle taper while it remains installed — guaranteeing concentricity to the bearings and eliminating alignment issues caused by reinstallation.
Our self-contained grinding setup travels to your facility. No shipping delays, no crating, no waiting weeks for a shop-returned spindle.
Every service is performed on-site with precision grinding equipment — no teardown, no shipping, no guesswork.
We regrind worn or damaged spindle tapers back to factory specification in the machine. Reduces runout, restores tool clamping, and extends spindle life.
We restore spindle tapers damaged by spun tools, general wear, bell mouth, galling, dents, pits, and gouges — returning your taper to proper geometry on-site.
Excessive runout leads to poor surface finish and shortened tool life. Our in-machine precision grinding corrects concentricity to your spindle bearings.
We service CNC machining centers, CNC mills, CNC lathes, and boring mills — all major brands and configurations.
Production down? We understand the urgency. Contact us for rapid response scheduling to get your machine back in operation as quickly as possible.
We travel to manufacturing facilities across North America. Wherever your CNC machine is, we can come to you.
Traditional spindle repair requires full disassembly. Our mobile grinding eliminates that process entirely, saving days of labor and reinstallation risk.
Grinding in the machine means the taper is trued to the actual bearings in their installed state — the only way to guarantee true concentricity.
Every hour your machine is down costs money. Our on-site process gets you running again in a fraction of the time of traditional rebuild services.
This isn't a patch — it's precision grinding to specification. Improved tool life, better surface finish, and long-term reliability.
When your spindle taper is damaged, you have a choice: ship your spindle out for weeks, or call On-Site Spindle Repair LLC and have a technician at your facility with precision equipment ready to restore your machine.
We specialize in fast, precise, permanent spindle taper restoration — without the teardown, the shipping, or the extended wait.
Ready to get your machine back to precision? Contact us to schedule an on-site visit or ask about our availability in your area.
Tucson, AZ — Serving North America
Emergency calls welcome — contact us anytime