INDUSTRIES WE SERVE
Machine Tool Downtime Stops Here
From Aerospace Turbine Components to Semiconductor Wafer Handling, NNG keeps the machines behind your production running at the accuracy, reliability, and UPTIME your industry demands. 45 years of OEM factory-trained expertise, 30+ locations across the US, Canada, and Mexico, and a repair or exchange path for nearly every failure you’ll face.
Tolerances are measured in microns. Downtime is measured in millions.
Aerospace production doesn't leave room for guesswork. A worn spindle taper or a ballscrew that's drifted out of tolerance can quietly compromise a part long before it fails a final inspection, and by then the cost isn't just the part. It's the schedule, the customer, and the audit trail. NNG's OEM factory-trained technicians restore spindles and linear motion systems to original specification (or beyond) for turbine components, airframe structures, and high-performance alloy machining.
Partner with NNG to maintain the precision that keeps aircraft and spacecraft flying safely.
Common aerospace machining issues:
What Customers Need to Know
Failure points we commonly see
Spindle taper wear from high-speed alloy cutting, ballscrew backlash caused by thermal cycling, worn fixturing on turbine blade production cells.
How fast can NNG turn around a spindle repair for an aerospace line?
Most exchange-core spindle repairs ship same-day to next-day, with on-site emergency response available for line-down situations on commercial and defense aerospace programs.
High-volume lines don't get grace periods for slow repairs.
Powertrain, chassis, and body production runs on rapid changeovers and machines that don't get a second chance to hold tolerance. NNG supports automotive manufacturers and tier suppliers with same-day ballscrew service, spindle repair and exchange, and full machine rebuilds for the CNC centers and transfer lines producing engine blocks, transmission housings, and structural components.
Keep your lines running at the speed the industry requires.
Common automotive machining issues:
What Customers Need to Know
Failure points we commonly see
Ballscrew wear on high-cycle transfer lines, chuck jaw wear from continuous turning operations, spindle bearing failure from sustained duty cycles.
What's the fastest path back to production for a worn automotive line ballscrew?
NNG’s Exchange Core Program swaps a worn unit for a remanufactured one on the spot, cutting the wait for new OEM parts out of the equation entirely.
We repair the components that define what "precision" means to everyone else.
Machine builders and rebuilders don't need a general repair shop. They need a partner who understands ballscrews, spindles, linear motion, turrets, and workholding at the component level, because that's what their own customers are trusting them to get right. NNG offers complete repair, remanufacture, sales, and retrofit services across virtually every major machine tool brand.
Whatever the brand, whatever the age, NNG has likely already rebuilt one just like it.
Common machine tool issues:
What Customers Need to Know
Failure points we commonly see
Worn machine ways affecting geometric accuracy, spindle taper wear compromising tool interface, ballscrew backlash accumulating across a machine’s service life.
Does NNG work on legacy or discontinued machine tool models?
Yes. With extensive technical libraries and 45 years of cross-brand experience, NNG regularly restores equipment that OEMs have long since stopped supporting.
A tenth of a micron is the difference between a passing part and a recall.
Orthopedic, dental, and surgical instrument production leaves no room for vibration, drift, or surface finish inconsistency. NNG provides spindle repair and exchange, precision ballscrew service, and workholding solutions built for the tight tolerances and cleanliness standards medical device manufacturing requires, with documented inspection reports that support validated processes.
Trust NNG to keep the machines that produce life-critical components running with the precision patients depend on.
Common medical manufacturing issues:
What Customers Need to Know
Failure points we commonly see
Spindle vibration degrading surface finish on implant-grade materials, ballscrew precision loss affecting repeatability, workholding wear compromising part-to-part consistency.
Can NNG provide documentation for a validated medical manufacturing process?
Yes. Every repair includes inspection reporting that supports your quality system and validation requirements.
Obsolete doesn't mean retired. It means the mission still depends on it.
Defense manufacturing runs on equipment that's often decades old, with no OEM support and no realistic replacement timeline. NNG specializes in extending the service life of legacy machine tools through spindle repair, ballscrew remanufacturing, and full retrofit services, keeping mission-critical production capable long after the manufacturer has moved on.
When the mission can’t wait on a parts catalog, NNG keeps legacy equipment mission-ready.
Common defense equipment issues:
What Customers Need to Know
Failure points we commonly see
Aging equipment running obsolete controls with no factory support, spindle failure on machines with no available OEM replacement parts, extended lead times for foreign-sourced components that a US-based repair can bypass entirely.
What happens when a defense program's machine tool no longer has OEM support?
NNG’s factory-trained technicians and technical library allow us to repair, remanufacture, or retrofit equipment independent of whether the original manufacturer still supports it.
Continuous process industries don't have an off switch. Neither do we.
Producing the pumps, valves, compressors, and turbines that energy and petrochemical operations depend on requires equipment that performs in demanding, high-duty-cycle environments without interruption. NNG services the precision machine tools behind that production, with specialized ballscrew and spindle repair, gearbox and power-end work, and fluid-end support built for continuous operation.
When the mission can’t wait on a parts catalog, NNG keeps legacy equipment mission-ready.
Common energy and petrochemical equipment issues:
What Customers Need to Know
Failure points we commonly see
Gearbox wear from sustained high-load duty cycles, power-end degradation under continuous operation, spindle and ballscrew accuracy loss affecting critical-component machining.
Can NNG service equipment during a planned turnaround window?
Emergency on-call service and multi-location support are built specifically for the tight, scheduled windows energy and petrochemical turnarounds require.
At the nanometer scale, "close enough" doesn't exist.
Wafer handling, packaging, and precision component production run on motion systems that have to be ultra-clean and essentially vibration-free. NNG delivers spindle and ballscrew repair, linear motion solutions, and workholding services engineered to restore the geometric and dynamic accuracy semiconductor tool builders and component suppliers depend on.
Precision at the nanometer scale starts with equipment that hasn’t drifted an inch.
Common semiconductor equipment issues:
What Customers Need to Know
Failure points we commonly see
Spindle vibration disrupting wafer handling accuracy, ballscrew micro-positioning drift, contamination risk from degraded seals and surfaces.
How does NNG address contamination concerns in semiconductor-grade repairs?
Repairs follow documented quality processes designed to restore the clean, low-vibration performance advanced chip fabrication requires.
Job shops don't have the luxury of downtime nobody's paying for.
Across contract manufacturers, job shops, and production facilities of every size, keeping mills, lathes, and CNC cells productive is the difference between hitting a delivery date and explaining why you didn't. NNG provides ballscrew repair and same-day service, spindle exchange and remanufacture, and full machine rebuilds at a cost well below new OEM replacement.
Practical, high-value solutions that keep your schedule intact and your total cost of ownership down.
Common manufacturing equipment issues:
What Customers Need to Know
Failure points we commonly see
Ballscrew wear on general-purpose CNC equipment, spindle exchange needs on aging machine fleets, budget pressure to extend equipment life instead of replacing it outright.
Is repair or exchange usually cheaper than buying new?
In most cases, yes. NNG’s remanufacturing and Exchange Core Program typically cost a fraction of new OEM components while restoring full performance.
Washdown environments are hard on machines and unforgiving of shortcuts.
Processing, packaging, and filling equipment has to perform consistently in hygienic, high-washdown conditions that punish anything less than durable, corrosion-resistant construction. NNG supports the production machinery behind food and beverage manufacturing with complete machine repair, service, and retrofit work, including stainless-steel and specialty-alloy component solutions built to survive the environment they operate in.
Fast turnaround and durable rebuilds keep hygienic production lines running without compromise.
Common food and beverage equipment issues:
What Customers Need to Know
Failure points we commonly see
Corrosion from repeated washdown exposure, wear on stainless and specialty-alloy components, seal and bearing degradation in high-moisture environments.
Can NNG rebuild equipment for washdown or high-hygiene environments?
Yes. Remanufactured assemblies are built with the same corrosion resistance and durability standards the original equipment required.
Abrasive materials wear out machines faster than almost anything else you'll cut.
Processing, packaging, and filling equipment has to perform consistently in hygienic, high-washdown conditions that punish anything less than durable, corrosion-resistant construction. NNG supports the production machinery behind food and beverage manufacturing with complete machine repair, service, and retrofit work, including stainless-steel and specialty-alloy component solutions built to survive the environment they operate in.
Extended machine life starts with components built to survive what you’re actually cutting.
Common Ceramics & Materials Processing equipment issues:
What Customers Need to Know
Failure points we commonly see
Bearing wear from abrasive particulate exposure, spindle thermal degradation from high cutting forces, linear system wear affecting dimensional control on technical ceramics.
Why do ceramics and composites wear machine components faster than standard materials?
The abrasiveness and cutting forces involved accelerate wear on bearings and spindles well beyond what conventional machining produces, making proactive service intervals critical.
Continuous-cycle equipment needs components that don't quit mid-run.
CNC routers, molders, and extruders run long cycles where any drift in linear motion shows up immediately in surface quality and dimensional consistency. NNG provides ballscrew service, spindle repair, and complete machine repair built for the durability and smooth, accurate motion woodworking and extrusion equipment requires under high-cycle operation.
Cost-effective remanufacturing and rapid service keep throughput and product quality where they need to be.
Common Woodworking & Extrusion equipment issues:
What Customers Need to Know
Failure points we commonly see
Ballscrew wear from sustained continuous operation, spindle repair needs on high-RPM routing equipment, vibration affecting surface finish on finished product runs.
How does NNG minimize vibration-related surface defects on woodworking equipment?
Restoring spindle and ballscrew accuracy to original specification directly reduces the vibration that shows up as surface quality issues downstream.
Raceway grinding accuracy is only as good as the machine producing it.
Bearing manufacturers run some of the most precision-dependent machine tools in any industry, where geometric and dynamic accuracy directly determines whether a finished bearing meets ABEC or ISO precision class. NNG supports this sector with specialized spindle repair and exchange, ballscrew and linear motion service, and precision machine tool rebuilds engineered around those exact requirements.
Consistency your customers demand starts with equipment that hasn’t lost its edge.
Common Bearing Manufacturing equipment issues:
What Customers Need to Know
Failure points we commonly see
Spindle precision loss affecting raceway geometry, ballscrew wear compromising grinding accuracy, machine way wear reducing overall dimensional repeatability.
Can NNG repair equipment to meet specific ABEC or ISO precision classes?
Yes. Technicians understand the geometric and dynamic tolerances bearing production equipment must hold, with documented, warranty-backed repair processes to match.
Downtime is Expensive
Tell us what’s happening, the machine or component involved, and what you’re experiencing. NNG can help determine whether repair, rebuild, exchange or replacement is the most practical next step.