CNC Maintenance is a complete machine shop with over 40 years of experience that specializes in rebuilding and remanufacturing all types of CNC machinery to meet and exceed OEM specs & tolerances for sizes, durability, ease of maintenance all with a 12 to 36 month warranty on all of our repair projects. Whether it's a single component or an entire machine, we get you back into production with as little downtime as possible while saving you over 50% from replacement cost.

Our extensive in-house capabilities include precision OD/ID grinding (in temp. controlled rooms), conventional, NC & CNC machining, 4th & 5th axis CNC, hard chrome plating, FARO TECH 3D scanning technology and much more. No subcontractors means cheaper prices and faster delivery times on your repair project. We are a turnkey repair facility with multiple locations.

Please click the links below for more info. We can rebuild and service all:

  • Ball screw repair: Normal delivery times are just 3 to 7 days. Need it fast? We offer 24 to 48 hour expedite services, we’re capable of working 3 shifts, including weekends & holidays. Any make, model or size, from minor backlash to crashes or noise in one direction. We can rebuild your ball screw to work like new. All ball screws repair services are backed by our industry leading warranty up to 36 months covering all parts, labor and end bearings. We’ll save you 50% to 70% from buying new while keeping downtime to an absolute minimum. We offer “Ship by Friday, install by Monday” ball screw repair service. Keep in mind we also have many completely rebuilt ball screws on the shelf ready for sale or exchange.
  • Onsite ball screw repair services. Do you need your ball screw repaired ASAP in your shop with absolute minimal downtime? We can dispatch a truck or fly out a ball screw technician to your facility the same day you call us. Our tech will supply his own tools and ball bearings and get your ball screw working like new in just a few hours, all onsite ball screw repair services are fully guaranteed to work like new for up to 18 months. Our technicians will need access to 110 electricity and depending on size, access to a forklift or overhead crane may be necessary. Don’t let machine downtime cost more than the repair project. Get your machine back into production with minimal downtime with onsite ball screw repair service. Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Spindle repair: We can save you up to 70% from buying new! All spindle rebuild services are backed by a 12 to 48 month warranty covering bearings, seals, chrome, internal parts & labor. From simple bearing replacements to complete rebuilds with hard chrome and high precision OD/ID grinding (in temperature controlled rooms) with in house hard chrome plating. We have parts in stock, drawbars, seals, bearings for all DMG Mori, Mori Seiki, Mazak and others. We always upgrade your bearings and seals to the highest level and perform all run in procedures following strict OEM guidelines for speed increments and time. Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Hydraulic & Pneumatic workholding repair: CNC Maintenance can save you up to 70% from buying a replacement chuck and deliver a complete rebuild in one week or less. All chuck / workholding rebuilds are guaranteed to work like new for up to 48 months from the install date. Loss of clamping force, concentricity issues, leaks, seal replacements to complete rebuilds of all ID components with precision OD/ID chrome and mfg. new replacement jaws that exceed OEM spec/tolerance. Get your chuck working like new and save upto 70% with a 48 month warranty. We have exchanges for SMW BB500 big bore, most Rohm or other large chucks. Call us, we might have an immediate exchange or upgrade available waiting on the shelf. This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Linear guide rail & truck repair: All the balls fell out? Most common problem is the black plastic ball returns get packed full of chips or debris and the plastic cap breaks. We have the parts in stock to get your linear guide rails working like new! Up to 36 month warranty. Save up to 70% from ordering replacements. Normal delivery time is 4 to 7 days with 24/48 hour expedite service. We offer precision grinding of trucks and rails (all 4 ball tracks are ground parallel and we install oversize balls to get your trucks working at the OEM preload). Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Tool changers: Most common problem is worn cams or broken gears. We manufacture new parts to exceed OEM spec/tolerance and get your machine working like new. We either replace the electric motor with an upgrade or rewind to save time & money. We manufacture new cams, gears and replacement parts using Faro Tech 3D scanning combined with 5th axis CNC to manufacture parts for obsolete equipment. Get your tool changer working like new. Guaranteed to save 50 to 70% from buying a replacement. Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Electric motor rewinding: High RPM motors are fully rebuilt with full rewinding, hard chrome & OD grinding, and bearings seals are upgraded. Fully tested for 96 hours at different speeds every 30 minutes. Save 50% or more and get a 24 to 36 month warranty. We offer VPI insulation for longer life. We also offer traditional “epoxy dip & bake” insulation. Not all motors need complete rewinds or full rebuilds. Send in your motor for a complete evaluation. Click the Motor Rewinding page for more detailed information. Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Lead screw & nut manufacturing: We can manufacture lead screws and nuts up to 6" diameter with up to 6 starts and nuts to any length with any size flange. Our lead screws exceed OEM guidelines for sizes, tolerances and accuracy. Most lead screws can be precision ground with new custom adjustable nuts manufactured. Trapezoidal acme screws up to 40 feet in length. We can duplicate any lead screw with any size journals. All Acme lead screw nuts are manufactured to your exact specs and call out. We can manufacture any size and any lead in metric & stand configurations. We also have high precision ground acme lead screws capable of holding .0005 per linear foot lead accuracy. High precision ground & single point to lower precision cold or hot roll die cut. Email This email address is being protected from spambots. You need JavaScript enabled to view it. 
  • High precision ground tooth gear mfg: We can duplicate any gear for any machine headstock with a sample or drawing. From single gears, cams, shafts to complete headstock rebuilds. Send in your complete headstock for a 48 month warranty covering all gears, cams, shafts, bearings, seals, etc. We manufacture high precision ground tooth gears to AGMA Q15 and we hard chrome plate and grind bearing surfaces with .004 of hard chrome for longer life. Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Complete in house machine shop: Including hard chrome plating, high precision (temp. controlled room) OD/ID grinding, cylindrical grinding, thread grinding, surface grinding, FARO Tech 3D scanning technology, 3D printing, 3, 4 and 5th axis milling, NC & CNC machining, thermal/plasma spray (over 25 different thermal spray coatings available), ability to reverse engineer parts for virtually any machine, 1 to 10,000 parts as needed. We are very proud to announce we have FARO Tech 3D scanning combined with 5th axis CNC to duplicate any parts you may need. Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Used machinery buyer: We buy used machinery in any condition, working or not. Old fork lifts, fleet vehicles (working or not) machinery, complete lines, etc. Ball screws, chucks, spindles, linear guide rails, complete machines and lines, working or not, we’ll buy it all! Our goal is to clean out your yard and pay you for the equipment. Anything from spare parts to complete lines, any machinery, any metal, we buy it all! Work benches, forklifts, manlifts, grinders, Email This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Complete CNC machine shop for mass production: We can mass produce hundreds or thousands of parts every month. 3rd, 4th, 5th Axis CNC milling, Faro Tech 3D scanning technology, production parts to print or sample from any material. Free quotes or target price to beat our competitors. Does your finish parts require chrome plating or polishing? We offer turnkey solutions without the use of subcontractors to keep your prices low and your delivery times fast. Email This email address is being protected from spambots. You need JavaScript enabled to view it.

Please click the links above and feel free to call us with any questions. You'll speak directly to a CNC technician who can give you an estimate on cost and delivery times right over the phone. Nationwide same day pickup is available on any size project! We deliver on your schedule, rush jobs are our specialty.

Our extensive in-house machine shop capabilities include:

  • Conventional, NC & CNC machining
  • Conventional, NC, 3rd, 4th & 5th axis CNC
  • Large CNC router
  • Large water jet cutting
  • EDM machines
  • Faro Tech 3D scanning technology
  • Large VMC (vertical machine centers)
  • High precision OD/ID grinding (temperature controlled rooms)
  • Centerless grinding
  • Thread grinding
  • Jig grinding
  • Way grinding
  • Surface & Blanchard grinding
  • Horizontal boring
  • Horizontal honing
  • High precision vertical honing
  • Industrial hard chrome plating done to Military Spec QQC-320B
  • Electroless nickel plating done to Military Spec Mil-C-26074B Class A Grade 1
  • Large heat treating oven
  • Thermal spray done to Military Standard Mil Std 1687A & Mil Std 2138 (over 25 different coatings available from pure carbide, chromium carbide, aluminum oxide, chrome oxide, hastalloy, hard facing, whatever your application requires, we have the thermal spray solution to fit).
  • Welding & hard facing, with full metal fabrication capabilities
  • Mirror finish polishing, buffing, directional patterns, satin finishes, etc. Any part, any size, any finish required.
  • Sand blasting, media blasting, vapor blasting, chemical dip cleaning, etc.

Keep in mind we are a used equipment buyer. Numerous CNC, conventional machines, NC, grinders, gantry, bridge mills, lathes, OD & ID grinders are in stock that are fully rebuilt with updated controls under complete warranty. We’ll purchase any CNC or conventional machine whether it’s working or not, even if it’s missing parts and sitting in the boneyard. We’ll buy all machine shop equipment from steel work tables, forklifts, manlifts, spare machine parts like chucks, spindles, ball screws, headstocks, etc. We’ll buy company cars & trucks in any condition, running or not, title or no title. Sell us your entire boneyard and let us clean it out. Anything in your shop or boneyard is worth money. Send pics and info to This email address is being protected from spambots. You need JavaScript enabled to view it.

 

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Spindle repair links: ●Mazak ●Mori Seiki ●Hitachi Seiki ●Mighty Viper ●Gleason ●Haas ●Mitsubishi ●Toyoda ●Kuroda ●Fadal ●Okuma ●Morbidelli ●G&L ●Giddings & Lewis ●Cincinnati ●DMG ●Komo ●Spindle repair near me ●Texas spindle ●California Spindle ●Spindle bearing ●Spindle grinding ●Gantry ●Wood working ●Kitamura ●Bridge mill ●VMC ●HMC ●VTL ●Doosan`●Umbra ●Amada ●Bostomatic ●Boyar Schultz ●Brown & Sharpe ●Campbell ●Chiron ●Churchill ●Cincinnati ●Daewoo ●DMG ●Dynamatronics ●Eitzenberger ●Ekstrom ●ELB grinder ●EMCO ●Eurotech ●Excel ●Excello ●FEMCO ●Fischer ●Franz Kessler ●Fuji ●Gilman ●Giuliani ●Hardinge ●Hurco ●Hyundai ●Ingersoll ●Jarvis ●Johnford ●Kasuga ●Kira ●Kitamura ●Lesson ●Makino ●Mitsubishi ●Miyano ●Mori Seiki ●OKK  ●Okuma ●Seiko Seiki ●Toyoda ●Umbra

Chuck Workholding repair links: ●SMW-Autoblok ●Rohm ●Abbott Workholding ●AHD ●ASI ●Atlas ●Workholding ●ATS ●Autoblok ●Autogrip ●Beere Precision ●Berg ●Bergman ●Best Chuck ●Bison ●BTC ●Buck Chuck ●Buck Lathe Chuck ●Buck ●Forkardt ●Bullard ●Chick Workholding ●Concentric Tool ●Co-Op Tool ●Cushman ●Di Chun Iron Work ●Drewco ●EB Manufacturing ●Ericson ●Emuge ●Forkhardt ●Fuji ●Futamura ●Gamet Precision ●Giddings & Lewis ●Gisholt ●Goss ●Grip ●Haas ●Hainbuch ●Welge ●Hardinge ●Henri Azaria P.A.L. ●Hitachi ●Howa ●Italmors ●ITW Workholding ●Kalamazoo ●Kawatatec ●Kitagawa ●Kametsu ●Kurt ●LMC ●LMC/MMK ●Logansport Matsumoto ●Matsumoto ●Mazak ●Microcentric ●Micro-Centric ●MMK ●Mori Seiki ●Mp Tool ●Nakane Machine Tools ●NA Woodworth ●Nikko ●New Britain ●Nobel ●Nomura Machine Tool ●Northfield ●Okuma ●Pal ●PBA ●PML-PAL ●Positrol ●Powerhold ●Pratt Burnerd ●Prohold ●Riken Seiki ●Ringspann ●Riten ●Roehm Spanntechnik ●Rohm Products ●Röhm Products ●Roofe ●Rotomors ●Rovi Products ●Royal Machine & Tool ●Royal Products ●Royal Workholding ●Samchully ●Sanyo ●SCA ●Schünk Gmbh & Co ●Schunk ●Scoda ●Scully-Jones ●Seiki ●Skinner Horton ●Cushman ●SMW Autoblok ●SMW Systems ●Soul-Burnerd ●Soul-Woodworth ●Sp Sheffer ●Speedgrip ●S-P ●Stace-Allen ●Strong Chuck ●Suburban ●Sutton Tool ●Teikoku ●Tonfou ●Ton Fou ●Ward ●Warner & Swasey ●Warner Swasey ●Yuasa ●Zagar