NNG Industries is shaping the future.

Frequently Asked Questions

Technical & Service-Related Questions

What types of makes models and types of units or devices do NNG specialize in repairing, selling or servicing?

NNG Industries specializes in the repair, sale, and servicing of a wide range of precision machinery and components, with a focus on:

Multiple Types of Units & Devices such as:

CNC Machines – Including vertical and horizontal machining centers, turning centers, and multi-axis systems.
Spindles – High-speed and high-torque spindles for various machining applications.
Ballscrews – Precision ballscrews for motion control and linear actuation.
Workholding Devices – Custom and standard fixtures, vises, chucks, and rotary tables.
Servo Motors & Drives – Diagnostic, repair, and replacement services for motion control systems.
Tooling & Accessories – Including collets, holders, and cutting tools.

Makes & Models Serviced

NNG supports a broad spectrum of OEMs and models, including but not limited to:

Mazak
Haas
Okuma
Fanuc
Mori Seiki / DMG Mori
Fadal
YCM
Brother
Siemens
Heidenhain

Services Offered

Precision repair and rebuilds for mechanical and electronic components
Preventive maintenance programs tailored to client schedules
On-site diagnostics and troubleshooting
Component sourcing and equipment sales
Custom retrofits and upgrades to extend machine life and performance

Can NNG provide a detailed breakdown of the repair stages or inspection process?

NNG Industries follows a structured, multi-stage approach to ensure every repair meets the highest standards of precision, reliability, and transparency:

1. Initial Intake & Evaluation

Equipment is received and logged with detailed client information.
A visual and functional assessment is performed to identify obvious damage or wear.
Client concerns and service history are reviewed to guide inspection priorities.

2. Comprehensive Inspection

Disassembly of key components for internal evaluation.
Precision measurements taken using micrometers, dial indicators, and runout gauges.
Wear patterns, contamination, and failure points are documented.
Photos and notes are compiled for client reporting.

3. Diagnosis & Quotation

Root cause analysis is conducted to determine failure mechanisms.
A detailed service proposal is prepared, including:

Recommended repairs or replacements
Cost breakdown by part and labor
Estimated turnaround time

Proposal is reviewed with the client for approval.

4. Repair & Rebuild

Damaged components are repaired, replaced, or remanufactured.
Bearings, seals, and wear items are replaced with OEM or high-grade equivalents.
Machining, grinding, and balancing are performed as needed.
Assemblies are rebuilt to precise tolerances.

5. Final Testing & Quality Assurance

Units undergo functional testing (e.g., spindle runout, ballscrew backlash, motor load tests).
Vibration analysis and thermal imaging may be used for dynamic components.
Final inspection ensures compliance with OEM specs and NNG’s internal standards.

6. Documentation & Delivery

A full service report is provided, including:

Before/after photos
Measurement data
Parts replaced
Warranty terms

Equipment is packaged securely and shipped or scheduled for pickup.

Does NNG offer preventative maintenance or upgrade options for my unit?

Yes—NNG Industries offers both preventive maintenance programs and upgrade solutions tailored to your specific unit type and operational needs.

Preventive Maintenance Services

NNG’s maintenance plans are designed to minimize downtime, extend equipment life, and catch issues before they become costly failures. Services include:

Scheduled inspections and lubrication
Precision alignment and calibration
Wear component replacement (bearings, seals, belts, etc.)
Vibration analysis and thermal imaging
Maintenance logs and performance tracking

These programs can be customized for:

CNC machines
Spindles
Ballscrews
Servo motors and drives
Workholding devices

⚙️ Upgrade & Retrofit Solutions

NNG also provides upgrade options to enhance performance, efficiency, and compatibility:

Control system retrofits (e.g., upgrading to newer Fanuc or Siemens platforms)
Spindle and motor upgrades for higher speed or torque
Ballscrew conversions for improved precision and load capacity
Custom workholding enhancements to support new part geometries
Energy-efficient component replacements

All upgrades are backed by detailed proposals, OEM-grade parts, and post-installation testing to ensure seamless integration.

Are aftermarket or OEM parts used in repairs, and how do they impact performance or longevity?

NNG Industries uses both OEM (Original Equipment Manufacturer) and high-quality aftermarket parts, depending on the client’s needs, budget, and performance goals.

OEM Parts

Source: Direct from the original manufacturer.
Benefits:

Guaranteed compatibility and factory-grade precision
Maintains original performance specs
Often preferred for warranty compliance and critical applications

Impact: Ideal for clients seeking maximum reliability and long-term durability.

Aftermarket Parts

Source: Trusted third-party manufacturers vetted by NNG.
Benefits:

Cost-effective without sacrificing quality
Availability for discontinued or hard-to-source components
Customization options for enhanced performance

Impact: Excellent for budget-conscious repairs or performance upgrades, especially when OEM parts are unavailable or impractical.

NNG’s Approach

Every part—OEM or aftermarket—is inspected and tested to meet NNG’s internal quality standards.
Clients are always informed of part options and their implications for cost, performance, and longevity.
NNG prioritizes transparency and performance, ensuring repairs are built to last.

Can NNG help troubleshoot performance issues or recommend exchange or replacement options?

Yes—NNG Industries provides expert troubleshooting services and can recommend exchange or replacement options tailored to your unit’s condition and operational goals.

Performance Troubleshooting

NNG’s technicians are trained to diagnose a wide range of issues, including:

Excessive vibration, noise, or heat
Loss of precision or repeatability
Servo or spindle faults
Mechanical wear or misalignment
Electrical or control system errors

Troubleshooting can be performed:

On-site, for urgent or complex issues
In-house, with full teardown and inspection
Remotely, via client-provided data, photos, or videos

Clients receive a detailed diagnostic report outlining root causes, recommended actions, and cost-effective solutions.

Exchange & Replacement Options

When repair isn’t the best path forward, NNG offers:

Unit Exchange Programs – Fast swap-outs for spindles, ballscrews, motors, and more
Replacement Sourcing – OEM or aftermarket units sourced and installed
Custom Retrofits – Upgrades to improve performance, compatibility, or efficiency

All replacement options are backed by:

Performance testing
Warranty coverage
Full documentation and support

Billing & Policy Questions

What are your payment terms and accepted methods?

NNG Industries maintains firm and transparent payment policies to ensure smooth operations and mutual accountability.

Updated Payment Terms

Full Payment in Advance: Required for all first-time clients prior to service initiation or equipment release.
Net 30 Billing: Available only upon approval of verified credit references.
Deposit Requirements: May apply for custom orders, high-value repairs, or equipment purchases.
Late Fee Policy: A 5% late fee per day will be applied to any past due invoices beyond the agreed payment term.

All terms are clearly outlined in service proposals and invoices to ensure alignment and avoid delays.

Accepted Payment Methods

ACH / Bank Transfer – Preferred for secure and traceable transactions
Check – Mailed to NNG’s billing address listed on the invoice
Wire Transfer – For international or high-value transactions (bank details provided upon request)

Invoicing & Documentation

Invoices include detailed breakdowns of labor, parts, and service stages
Payment confirmations and receipts are issued promptly
Clients are encouraged to communicate proactively regarding payment timelines or documentation needs

Do you offer volume discounts or bundled service pricing?

Yes—NNG Industries offers flexible pricing options for clients seeking cost-effective solutions across multiple units or ongoing service needs.

Volume Discounts

Available for clients submitting multiple units for repair or service within a defined timeframe.
Discounts are based on:

Quantity of units
Type and complexity of service
Frequency of engagement

Ideal for manufacturers, machine shops, and facilities with recurring maintenance needs.

Bundled Service Pricing

Custom packages can be created to combine:

Inspection, repair, and testing
Preventive maintenance visits
Component replacements or upgrades

Bundles are tailored to reduce administrative overhead and streamline budgeting.
Clients benefit from predictable costs, priority scheduling, and enhanced reporting.

Proposal-Based Structure

All discounts and bundles are outlined in formal service proposals.
NNG ensures transparency in pricing, scope, and deliverables.
Long-term partnerships may qualify for additional incentives or preferred rates.

How do you handle clarifications on invoices?

NNG Industries is committed to transparency and prompt resolution when it comes to billing questions. If a client needs clarification on an invoice, we follow a structured and responsive approach:

Step-by-Step Process

Client Inquiry

Clients can reach out via email or phone using the contact information listed on the invoice.
Please reference the invoice number and any specific line items in question.

Review & Response

Our billing team reviews the invoice details, service records, and any supporting documentation.
A written response is provided within 1–2 business days, including:

Clarification of charges
Adjustments (if applicable)
Updated documentation or breakdowns

Resolution & Confirmation

If adjustments are made, a revised invoice is issued promptly.
Payment terms and due dates are reconfirmed to avoid delays or penalties.

Commitment to Accuracy

All invoices include detailed breakdowns of labor, parts, and service stages.
Clients are encouraged to communicate proactively to ensure mutual understanding.
Disputes or concerns are handled professionally and documented for future reference.

Logistics & Turnaround Questions

What’s your average turnaround time for repairs or part replacements?

NNG Industries is committed to delivering fast, reliable service without compromising precision or quality. Turnaround times vary depending on the unit type, condition, and service scope, but here are general benchmarks:

Standard Repair Turnaround

Spindles & Ballscrews: 5–10 business days
Servo Motors & Drives: 7–12 business days
Workholding Devices & CNC Components: 3–7 business days
Complex Rebuilds or Custom Retrofits: 2–3 weeks

Part Replacement & Exchange

In-Stock Components: 1–3 business days for shipment
Exchange Units: Typically shipped within same day or 24–48 hours of approval
Special Orders or Sourcing: 1–2 weeks depending on vendor lead times

Expedited Service

Rush options are available for critical downtime situations with an added fee ranging from 25-50%
Priority scheduling and overnight shipping can be arranged upon request

NNG provides estimated timelines in every service proposal and keeps clients updated throughout the process to ensure transparency and planning accuracy.

Can you coordinate shipping or pickup for serviced components?

Yes—NNG Industries offers full coordination for both shipping and pickup of serviced components to ensure a seamless experience for our clients.

Shipping Services

Domestic & International Shipping: We work with trusted carriers to arrange secure transport tailored to your location and timeline.
Packaging & Handling: All components are professionally packed to prevent damage during transit, with custom crating available for sensitive or oversized items.
Tracking & Documentation: Clients receive tracking information, shipping labels, and any required customs paperwork.

Pickup Coordination

Client-Scheduled Pickup: We accommodate pickups by your preferred carrier or logistics team.
NNG-Arranged Transport: Upon request, NNG can dispatch a courier or freight service to retrieve components from your facility.
Exchange Core Returns: For clients participating in our Exchange Core Program, we provide clear instructions and labels for returning used units.

Logistics Support

All logistics details are outlined in your service proposal or confirmation email.
Our team remains available to assist with scheduling, documentation, and special handling requests.

Support Questions

How do I get updates on the status of my service order?

You’ll receive detailed progression updates by email throughout each stage of the service. For time-sensitive inquiries, feel free to contact us directly at contact@nngindustries.com or call 1-800-618-6817.

What information do I need to provide when requesting a quote?

To generate an accurate quote, please include the part type, make and model, condition, any relevant measurements or photos, and your preferred turnaround time. Our team will follow up with any additional questions needed for precise evaluation.

Is there a service guarantee or warranty on repairs performed?

Yes. Most repairs include a service guarantee covering workmanship and performance for a set period. Specific warranty terms are outlined in the quote or final invoice. If any issues arise, we’ll work with you to resolve them promptly.

How will NNG Industries offer innovative solutions toward cost-effective savings for your demanding requirements?

At NNG Industries, innovation means precision-driven solutions that deliver measurable value. We specialize in restoring and rebuilding high-performance components at a fraction of the cost of OEMs or conventional vendors — without compromising lead time, performance, or reliability.

Our approach combines deep technical expertise with transparent service breakdowns that eliminate markups, accelerate turnaround, and minimize downtime. Clients consistently save thousands per project thanks to targeted repairs, hands-on diagnostics, and our efficient communication model.

Whether it’s air, hydraulic, manual, or indexing chuck repair — or any other workholding device requiring full restoration — NNG Industries delivers precision-driven solutions. From automation and linear motion systems to spindle and ballscrew servicing, hydraulic repair, complete machine overhauls, and custom rebuilds, we’re committed to helping you achieve operational efficiency and long-term, measurable results.