Key Takeaways:
The 190DC and 195DM are specialized variants in Marusaku's hydrostatic spindle line, tuned for high-rigidity, high-precision lathe and grinding duties.
Specialized Builds
Beyond the base MRDY-120…200 range, Marusaku offers variants such as the MRDY-190DC and MRDY-195DM. These are hydrostatic spindles optimized for high-rigidity, high-precision lathe and grinding applications where extra stiffness and thermal stability matter most.

What They Share
Like the whole MRDY family, both variants integrate the hydrostatic bearing with a direct-drive motor, float the shaft on a non-contact oil film, and deliver sub-micron runout with oil-film stiffness above 500 N/μm.
Where to Use Them
Select the 190DC/195DM when a process needs maximum rigidity—hard finishing, tight concentricity, or long, thermally stable runs on a precision lathe or grinder.