Colombo Spindle Repair

We specialize in the repair of Colombo spindle motors, Colombo motors, and Colombo 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.

Colombo Spindle Repair • Case Studies

Colombo

 RA120, 10/7Hp, 12000/18000rpm, 480v, 400/600rpm, s/n 1400744, HSK63F R188213 Lower bearing DR7000057 Upper bearing DR7000501 HSK63F Gripper 95.600.083.3.2 DR7000087 Dynamic Balance Rotating Part DR7000041 Spindle Repair Labor And Assy Inspection Results: •The spindle journal diameters show no appreciable wear and are acceptable for proper bearing fits. •The upper bearing housing inner diameter meets design specifications [...]

Colombo, s/n 0605765, 13500rpm, 460v, 225 Hz

Inspection Results The motor was not disassembled. The cylinder was removed to check the drawbar. No other inspection was done. The spring on the air cylinder is broke. The spring has scored the air cylinder piston plate. We will replace the plate with a used one in good condition. The proximity switches work fine and will be set [...]

Colombo, s/n 0605764, 13500rpm, 460v, 225 Hz

Inspection Results The motor was not disassembled. The cylinder was removed to check the drawbar. No other inspection was done. The spring on the air cylinder is broke. The spring has scored the air cylinder piston plate. We will make a new return plate. The proximity switches work fine and will be set at time of assembly. [...]

Colombo RCE 90.2 Spindle Router Motor

s/n 1001381, 7.5 HP, 18000rpm, 380v, 300 Hz DR7000047 Upper bearing DR7000870 Lower bearing DR7000009M Dust Grind Taper - Manual spindle motor or live tool DR7000089 Motor Rewind DR7000087 Dynamic Balance Rotating Part DR7000041 Spindle Repair Labor And Assy Inspection Results: •The spindle journal diameters show no appreciable wear and are acceptable for proper bearing [...]

Colombo spindle

RV.90.2 router spindle, s/n 0601165, 5 HP, 24000rpm, 460v, 400 Hz DR7000030 Lower bearing 1 473.00 473.00 DR7000028 Upper bearing 1 110.00 110.00 DR7000009M Dust Grind Taper - Manual spindle motor or live tool 1 200.00 200.00 DR7000039 Bearing Cartridge Repair 1 350.00 350.00 DR7000087 Dynamic Balance Rotating Part 1 200.00 200.00 DR7000041 Spindle Repair [...]

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