MITUTOYO MT/6900-5
Published: 04/02/26 10:12AM
Restore confidence in every cycle with Ekstrom Carlson’s MT/6900-5 spindle repair service. We rebuild the spindle to recover precision, reduce vibration, and improve thermal stability. This helps you hold tight tolerances, avoid costly downtime, and keep production moving.
Recovered spindle consistency, improved rotational stability, and dependable operation in demanding machining environments.
Advanced diagnostics, controlled rebuild steps, and strict final testing before every release.
Product Overview
The MITUTOYO MT/6900-5 is a high‑precision spindle for serious production use.
It is rated up to 6000 RPM and is built for stable rotation and repeatable accuracy in critical processes.
At Ekstrom Carlson, we go beyond basic repair. Our process targets wear, runout, and thermal drift to bring your spindle back to OEM‑level reliability and production‑ready performance.
Operating Speed
6,000 RPM
Manufacturer
MITUTOYO
Service Standard
Factory Restored
The result is a spindle that goes back into service ready for real load conditions. It supports tighter tolerances, smoother operation, and less unplanned downtime.
Key Specifications and Features
The MT/6900-5 is designed for high‑precision performance in demanding production cycles. Its internal design supports stable operation at 6000 RPM, consistent rotation, and reliable dimensional control during continuous use.
Ekstrom Carlson’s rebuild process restores critical geometry, balance, and internal assemblies. This helps you regain OEM‑level reliability and repeatable results.
Max Operating Speed
6,000 RPM
Mechanical Stability
High‑Load Ready
Service Outcome
Factory‑Restored
Applications and Use Cases
The MT/6900-5 is used where precision and repeatability directly affect profit. It performs well in high‑throughput machining, precision grinding, and coordinate measurement workflows that depend on spindle stability.
Whether your focus is surface finish, dimensional accuracy, or overall stability, this spindle helps support critical operations where tolerance control must stay tight.
CNC Machining
Supports stable spindle behavior for controlled tool paths and consistent surface finish.
Precision Grinding
Maintains concentricity and smooth rotation for high‑accuracy grinding work.
CMM / Inspection
Provides reliable spindle performance for measurement‑critical inspection tasks.
Why This Component Matters
Spindle health has a direct impact on part quality, scrap rate, and cycle time. When spindle performance drifts, tolerance control weakens and unplanned downtime increases.
A properly restored MT/6900-5 helps protect your process at the source. It supports tighter tolerances, better repeatability, and stronger production confidence shift after shift.
Functional Testing and Quality Assurance
Every MT/6900-5 repair goes through a structured test sequence before release. We test performance under real operating conditions to confirm that the spindle is truly production‑ready, not just checked on the bench.
Our testing confirms dependable speed control, stable running behavior, and documented quality.
Speed Verification
We verify RPM performance from idle up to the maximum rated speed.
Runout & Accuracy
We measure radial and axial accuracy to confirm precision‑level rotation.
Thermal Analysis
We monitor temperature during sustained operation to confirm stable thermal behavior.
Ekstrom Carlson Expertise
Ekstrom Carlson is known for precision component restoration that holds up in real production. Our team focuses on spindle assemblies where accuracy, reliability, and repeatability are critical.
We combine deep technical experience with controlled repair processes. The results show up on your shop floor, not just in a report.
From initial evaluation through final testing, every service is built around one goal: returning your spindle ready to perform at the level your operation needs.
Ready to get your MT/6900-5 back to peak performance? Contact Ekstrom Carlson for a fast evaluation and expert spindle restoration support.