CMS spindle repair, 4kW, 280/350v, 800/1000Hz, 24000/30000rpm, GR-5431, 00-31947-110, ISO 20

We specialize in the repair of CMS spindle motors, CMS motors, and CMS spindles.  Our repairs will typically cost 1/2, or less than 1/2 the price of a new spindle.  Plus, we upgrade the original non-sealed bearing design, to a sealed / shielded bearing design at all bearing locations.  We keep bearings in stock for these motors to allow us to keep pace with our repair volume.  Lead-time can be as short as 2-3 days.  Contact us for new manual collet and nut spindles or automatic tool change spindles as well.

Four factors are of primary importance when rebuilding a high speed router operating at 10,000 to 30,000 RPM.

  1. The condition of the machine before the rebuild along with accurately diagnosing any and all problems.
  2. Installing proper replacement parts including spindle grade bearings and parts with OEM tolerances that are known only to OEM’s such as Ekstrom-Carlson.  We are not simply a machine shop or an electrical rewind shop.
  3. Precision tolerance machinery and tooling including grinding, plating and balancing equipment.
  4. Experience and quality workmanship of the repair technician.

At Ekstrom-Carlson, a complete factory rebuild includes a thorough inspection and a detailed repair quotation based on the supply of new parts from stock (when available). Comparison of parts to detailed prints, when required, ensures that no corners are cut.  All spindle rotating elements are balanced to ISO G2.5 tolerances or better, the best in the industry.  Re-balancing is critical, even on “simple bearing replacement repairs.”

New parts to original design specifications will be installed by our Service Technicians for complete unit responsibility.

CMS Spindle Repair • Case Studies

GYRO 5T1 x ER32

**What this is** GYRO 5T1 x ER32 **Quick visual summary** This image shows a cylindrical metal tool holder or spindle assembly with an ER32-type interface. The top has a smooth round shank that fits into a machine spindle. The midsection has a knurled flange for gripping and handling. The lower portion has a male threaded drawbar or retention thread and ... Read More

GYRO 571 X ER32

**GYRO 571 X ER32** This is the make and model shown on the paperwork for the unit in the photo. The name is written on the RMA sheet and matches the part sitting on top of it. **Detailed visual description** A machined steel live-tool spindle sits centered on the page. A clean cylindrical shaft rises from a machined flange. Below ... Read More

Mimatic Einstellmaß 130.02

**Mimatic Einstellmaß 130.02** Mimatic Einstellmaß 130.02. **Visual Description** This image shows a Mimatic driven head in close view. The unit has a machined aluminum block on the left. A darker metal section sits on the right, forming the drive housing. A stamped nameplate reads “mimatic,” and a small plate shows “Einstellmaß 130,02.” The front has a threaded spindle bore with ... Read More

PFEIFFER Spindle repair – model/serial unreadable

**PFEIFFER Spindle repair - Model/Serial Unreadable** This photo shows a compact precision spindle unit with a short cylindrical housing and a driven shaft. The housing bears worn stamped lettering that appears to read "PFEIFFER," but the exact model and serial are not legible in this image. **Detailed visual description** The spindle housing is metal and shows signs of heavy shop ... Read More

PRECI-FLEX 429420-3 spindle repair

**Item Title and ID** PRECI-FLEX 429420-3 spindle repair **What the photo shows** This image shows a PRECI-FLEX spindle housing. The unit is a rectangular machined metal block with a cylindrical end coupling. A ribbed lever or actuator is visible at the top left. Surface scratches and wear spots suggest prior use in production. A stamped mark near the logo reads ... Read More

Unknown Live Tool Spindle – Nameplate Illegible (Sent to Ekstrom Carlson for Repair)

**Quick ID** This image shows a live-tool spindle assembly. The nameplate is present but illegible in the photo. Ekstrom Carlson is handling this unit and is only performing a repair. **Detailed Visual Condition** The spindle housing is cylindrical and metal, with surface scratches and light oxidation. The shaft has splines or grooves and a machined end with a small slot ... Read More

Live Tool — Make/Model: Unknown (No Visible Nameplate)

Live Tool — Make/Model: Unknown (No Visible Nameplate) **Quick ID** This appears to be a live tool head with a square housing and an output shaft. The cylindrical shaft is splined and protrudes from one side. The housing shows a two-tone finish, one side matte black and the other polished silver. No visible nameplate or serial number is present in ... Read More

Eppinger PRECI-FLEX live tool repair

**Eppinger PRECI-FLEX live tool repair** Eppinger PRECI-FLEX **What the image shows** This photo shows a rectangular, dark metal live tool or right-angle head. The round top plate bears the Eppinger logo and the word PRECI-FLEX. Four bolt holes surround that plate. The output interface is visible at the bottom of the housing. Surface wear and scratches suggest active shop use. ... Read More

Unknown Live Tool Spindle – Nameplate Illegible (Sent to Ekstrom Carlson for Repair)

**Quick ID** This image shows a live-tool spindle assembly. The nameplate is present but illegible in the photo. Ekstrom Carlson is handling this unit and is only performing a repair. **Detailed Visual Condition** The spindle housing is cylindrical and metal, with surface scratches and light oxidation. The shaft has splines or grooves and a machined end with a small slot ... Read More

Live Tool Spindle Shaft — Make/Model Unknown (repair)

**Live Tool Spindle Shaft — Make/Model Unknown** **Overview** This image shows a precision spindle shaft assembly. The maker and part number are not readable on the housing. The part looks like a live tool or small spindle component used in CNC and turning centers. **What I See in the Photo** The main cylinder contains the engraved nameplate area but the ... Read More

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