Live Tool Repair

We specialize in the repair of live tooling.  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.

  • Most live tools exceeding 0.001″ runout are due, or almost due, for a repair.  0.0008″ or less is the target runout for a live tool.
  • Live tools like to rest as long as they cycle at full speed or maximum load.  5 minutes is a typical maximum run time followed by a 5 minute rest.
  • 150 to 160F temperatures are common when running at full load.


Why should you have your multi-spindle boring head, high speed right angle head, or other aggregate head, repaired by Ekstrom-Carlson?

  1. Lead-time: 1-2 Week average for multi-spindle heads, including tear down, inspection, quotation, and repair.  3-5 days for right angle heads and live tooling repairs.
  2. Price: Much lower price than the OEM, or the OEM distributor.
  3. USA repair: We repair the unit in Rockford, Illinois.  It is not shipped overseas, as is often the case for various machines.
  4. Parts repair: Where possible, we will save money by repairing motor spindles and gear spindle shafts.  Some manufacturer’s representatives will always quote a brand new unit if the unit drive shaft is damaged, or if the bearings require replacement.  75% of the time, we can save the original unit at less than 50% the cost of new.
  5. Sealed bearings when available and possible conversion to ceramic bearings.
  6. Free inspections.

Including Benz aggregate tool ® , Morari aggregate tool, Busellato aggregate toolBig Kaiser milling headsBiesse drill head, , live tools and driven tools for Mazak live tooling, Mori Seiki live tooling, Hitachi Seiki live tooling, Citizen live tooling,Volstro heads, Star live tooling, Nakamura Tome live tooling, Haas live tooling, Okuma live toolingHSD Spindle Head RepairsRomai live tooling, Romi live tooling, Alberti Gerardi live tooling, Parlec live tooling, Miyano live tooling, Gildmeister live tooling, Index live tooling, Traub live tooling, WTO live tooling, OMG live tooling, Koma Precision live tooling, Eppinger live tooling, Gerardi live tooling, Emco Meyer tooling , as well as various other Tools, Live Tools, Tooling, and Driven Tools.

  1. Disassembled and cleaned.
  2. Inspected dimensionally and visually.
  3. Quoted for repair.
  4. The spindles are assembled with new precision grade sealed / shielded bearings.
  5. If necessary, the spindle is ground to true the taper, and / or the bearing journals are plated and re-ground to proper bearing tolerance and total indicated runout.
  6. As required, the lower, middle and upper bearing housings may be bored, bushed, and reground to proper concentricity and dimensional tolerance.
  7. The spindles are re-assembled.
  8. The spindles are installed in the housing.
  9. The unit is run tested for 5-10 hours with testing of vibration, temperature, and noise levels


  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.
  3. Precision tolerance machinery and tooling including grinding, plating and balancing equipment.
  4. Experience and quality workmanship of the repair technician.


Contact Customer Service for more information on Repair

Make Spindle Job No. Machine Tool Type HP Max Speed
Alberti KZ1510 ER32
Alberti MCU 1.5 R2014248 Right
Alberti KZ1513 ER32 R2014241 right
Alberti MA40 R2014282 right
Alberti M90-3.5 R2014289 right 6000
Algra Live T13400062 linear 6000
Alps live T32160A07.A0065 4000
Alps live T32207B03 R2014206 live tool 6000
Benz 114FA05400022 R2014285 right angle 4000
Bridgeport head right angle head R2014186 right angle
Busellato Omlat 9kW, 18000 R2014378 HSK63F 9kW 18000
Chevalier Big Plus 40 taper Big Plus 40 10000
CMS spindle 00.091292-242 R2014176 HSK63F 12kw 24000
CMS spindle 2260 R2014365 7.3kW 24000
Coees spindle R2014380 manual collet 2.2kW 18000
Colombo RC73.22 R2014231 ISO 20 24000
Colombo RV110.22 ISO 30 10HP 18000
Colombo RV154.2 440FB3 ISO 30 CR 12 18000
Colombo RV154.22FHT.CPE R2014329 12.5 HP 18000
Colombo RV90 R2014227 5HP 24000
Colombo RC135.22 R2014366 HSK63F 12KW 24000
Daewoo DMV400
Daewoo 160GL
Dynamax spindle R2014309 5000
Ekstrom 327 pin 20000
Ekstrom SM2-C54 2014232 ER20 1.34 24000
Ekstrom SM-C73 ER25 2 18000
Ekstrom SM2–C74 collet 24000
Ekstrom SM2-C78 R2014250 ER25 4 18000
Ekstrom SM-C98 collet 18000
Ekstrom SM2-C98 R2014300 8 18000
Ekstrom 434 spindle pulley R2014322 18000
Ekstrom Spindlemax 5 R2014354 ISO 30 5HP 24000
Elte TMPE 5 14/2 R2014089 ER32 7 kw 24000
Elte TMPE4 10/2 R2014194 ER 5HP 24000
Eppinger live R78752 linear 3000
Eppinger live 4.200.498 R2014191 4000
ESW Live 60.4302.1809 right
Eurospindle K1375 R2014202 ISO 30 11kW 24000
Eurospindle 681.1107 R2014338 HSK63F 8kW 24000
Fanuc A06B-1463-B128#0721 R2014188 ER collet 1.5kw 20000
Fanuc A06B-0854-B200, #0002, r2014257 7.5kW 8000
Fimec SM2-C93 R2014278 ER32 6HP 18000
Forvet live tool R2014244 7000
Forvet live tool R2014373 7000
Grotefeld 90 degree agg head R2014363 dual output
Gromax live tool DBRR30-1809-ER25 R2014382
Haas Minimill R2014252 7500
Haas OM2 R2014200
Haas SL-20T SL-20T lathe 4000
Haas VF0 Haas Cat 40 7500
Haas VF3 R2014364 Haas CAT30 7500
Haas VF7 Haas Cat 40 7500
Haas VF7 R2014199 Haas Cat 40 7500
Heian M0205B R2014158 11 kw 24000
Hi-Drill Hi-Drill pulley BT40
Homag 12kW, 24000 R2014299 HSK63F 12 kw 24000
HSD ES919 ISO 30 24000
HSD ES919 cartridge ISO 30 24000
HSD ES929 HSK63F 8.9 24000
HSD ES988 R2014162 15HP 24000
HSD 4kW, 19300 RPM R2014162 HSK63F 4kW 19300
HSD R2014228 ISO 30 9HP 24000
HSD Intermac Intermac Cat 40
HSD SEV AT/T 1090-100 R2014205 ER32 6 HP 12000
HSK right angle right angle
Hurco VM1 Hurco Cat 40 8000
KHK KZ8313 Right 6000
Kitamura 2XiF R2014247 ISO 30 20000
Kitamura Sparkchanger 2Xi R2014320 CAT 40 10000
Kitamura Mycenter 3X R2014319 CAT 40 10000
Koma KH1015700 R2014353 6000
KSC live tool T32214B03 R2014213 right 6000
KSC live tool T32121A04 R2014198
KSC live tool T32008A08, X21 R2014286 linear
KSC live tool T32114A04 R2014292 right
KSC live Tool T32214A04 R2014302 right
KSC live tool T32214B01 R2014307 right
Madaula P.023.00002 live tool, right angle R201284 right
Mazak horizontal live 5362010701 R2014259 right
Mazak live 610 right angle Right
Mazak live right angle live
Mazak live SQL640 Right
Mazak live too right angle live
Mazak live tool PJ7048 right
Mazak live tool PA7068 right
Mazak live tool v type R2014225 4500
Mazak live tool SQT5350040 R2014223 rigth
Mazak live tool H type tool R2014226 right 4500
Mazak live tool horizontal R2014304 right
Mazak live tool 53828010101 R2014314 right
Mazak MTV 414/22 R2014310 Cat 40 7000
Mazak H400N spindle R2014327 10000
Mazak VTC30C R2014330 8000
Mazak VTC200 R2012273 12000
Mimatic live 124034 live tool 6500
Mimatic live 06.0311.7351.640 right angle live 5200
Miyano pulley spindle R2013498 6000
Mori Seiki Live T32004A06 linear live tool
Mori Seiki Live T32004A07 R2014269 live tool 3000
Mori Seiki Live T32207B03 R2014206 live tool 6000
Mori Seiki Live T32214B02 5J-091 R2014170 live tool 6000
Mori Seiki Live T32214B)2 R2014095 live tool 6000
Mori Seiki Live T32118A08 R2014340 live tool 4000
Mori Seiki live T32106B11 R2014339 live tool 4000
MT right live tool MT live tool MTA 4958-3.2 R2014254 live tool 6000
MT linear live tool MTA 6548-3.1 R2014311 live tool 6000
MT dual quad outle dual quad outlet mnl0234425 R2014318 quad head 6000
MT gear hobber MTA0618-1, MNL0152100 R2014328 gear hobber 3000
Nakanishi spindle BM319 R2014168 collet 30000
OKK HM-4 Cat 40 12000
Okuma MX45 MX4 R2014246 Cat 40 taper 7000
Okuma live tool 708005 R2013510
Oliver grinder Pulley spindle R2014245 shaft
Omlat 15 kW, 10000 RPM Stone cuttiing 15kw 10000
Omlat 7.5kW, 18000 iso 30 7.5kw 18000
Omlat 12W, 24000 R2014181 HSK63F 12kW 24000
Omlat 12kW, 24000 R2014167 HSK63F 12kW 24000
Omlat 12kW, 18000 R2014291
Omlat R2014229 ISO 30 18000
Omlat 9kW, 18000 R2014229 ISO 30 9kW 18000
Omlat Busellato 9kW, 18000 R2014378 HSK63F 9kW 18000
Onsrud 1124 pulley spindle R2014197 collet 20000
Perske VS60 collet 7 21190
Perske FRL90 collet 18000
Perske KRSV 51.14.2D collet 18000
Perske KRSV 61.13.28 collet 4.4 kw 18000
Perske VS31.09-24 collet 28300
Perske VS50.09-2 R2014195 R03520 collet 4 HP 23500
Pope C323U R2014196 shaft 3400
Red Head U-39756 R2014187 shaft 7000
Romai S7-HSK63-ER32-C3C R2014139 right angle 8000
Romai WFK HSK63/HFS24 R2014138 right angle 6000
Romai HSK63–ER32-C3C, NPM 43-850-0116R R2014218 right angle 8000
Romai G7-2-CAT 50-FD22-E2F R2014297 right angle 8000
Sandvik C6TR1M250V R2014222
SCM T150 shaper R2013293 shaft
SCM 10HP, 18000 R2014178 iso 30 18000
SFJ spindle PFS-44x R2014203 shaft 4500
SLF Spindle 578472 R2014160 solid shaft 12000
SMZ R2014341 HSK63F 24000
Takisaway GM81988-619 1159, LS8, R2014351 5000
Techniks R201437
Tecnara right angle CAT50, 150-160-8 R2011179 cat 50 2500
Tornos Deco 26A R2014570
Umbra 4kW 4kW, 32000 RPM R2014169  HSK40 32000
Unison pulley pulley grinding spindle R2014283 3400
Volstro R3151 R2014185
Von Ruden DT10111400211 live tool
Weeke SMZ SMZ R2014266 7.5kW 24000
Whitnon pulley 235PSS R2014189 pulley spindle
WTO 410520379 live tool
WTO live Live live tool
WTO live, 10520027-60 R2014258 live double end right angle
WTO live 410120155 R2014265 live tol
WTO live 410516072-25, K110712-1.3 R2014316 live tool
WTO live straight 41012027-2-40, K12-00698 R2014371 live straight tool