New Product Introduction & NPI New Product Introduction & NPI

New Product Introduction & Prototyping — From Concept to First Production Batch for Sheet Metal Enclosures in India

Eterna Global Solutions LLP provides a structured New Product Introduction (NPI) and prototyping service that takes your sheet metal enclosure, server rack, telecom cabinet, or custom fabricated assembly from initial concept through prototype validation to production-ready first-article approval — all at a single facility in Noida, India. NPI is the critical bridge between your engineering team’s design and reliable, repeatable mass production. Get it right, and every subsequent production batch flows smoothly. Rush it or skip steps, and you inherit quality problems, cost overruns, and delivery delays that compound across every batch you ever build.

Many OEMs and product companies approach manufacturing partners with a completed design and expect to jump straight into production. The reality is that even a well-designed product needs a methodical NPI process before the first production PO: Design for Manufacturing (DFM) review to identify potential issues before cutting metal, prototype fabrication to validate fit and form, first-article inspection to lock down dimensional compliance, production tooling trials to verify repeatability, and process documentation to ensure the 500th unit is identical to the 5th. Our NPI process handles all of this — systematically, transparently, and with your engineering team involved at every approval gate.

Whether you are launching an entirely new product, localising an imported enclosure for domestic production, redesigning an existing product for cost reduction, or qualifying a new contract manufacturing partner for an established product, Eterna’s NPI framework ensures that the transition from drawing to production is controlled, documented, and successful on the first attempt.

Have a new product that needs to move from drawing to production?
Share your design files and volume forecast — we respond with an NPI plan, timeline, and prototype quote within 48–72 hours.

Why a structured NPI process matters

Avoid compounding errors across every production batch.

What goes wrong without NPI

Skipping or rushing the NPI process is the single most expensive mistake in contract manufacturing. Without proper DFM review, you discover that a bend radius is too tight for the specified material after 200 blanks have been cut. Without a prototype, you find that the door hits the cable management tray after the welding jigs have been built. Without first-article dimensional verification, you learn that a 19″ rail is 1.5 mm out of position after 50 racks have been coated. Each of these problems is trivial to fix at the design stage and progressively more expensive to fix at each subsequent stage — the classic “cost of change” curve that every manufacturing engineer knows.

What Eterna’s NPI process delivers

Our NPI process is designed to surface and resolve every potential problem before production tooling is built and before batch material is procured. By the time a product reaches production status at Eterna, every dimension has been verified, every process parameter has been locked, every quality checkpoint has been defined, and every piece of tooling has been trialled. The result: your first production batch runs on time, at cost, and at quality — and every subsequent batch is a repeat of a proven process, not a fresh experiment.

For product managers and engineering leads: NPI is not a “cost” — it’s an investment that prevents 10× the cost in production rework, scrap, and schedule delays. We have seen OEMs save 15–25% on total program cost simply by investing 2–3 extra weeks in a thorough NPI process rather than rushing to first batch.

NPI and prototyping at a glance

Quantified for project planning.
5–10 daysPrototype lead time (typical)
1–5 unitsPrototype quantity
Production processesPrototypes built on real equipment
DFM includedEvery NPI starts with DFM review
FAI reportDimensional verification per drawing
6–10 weeksDrawing to first production batch
Gate approvalsYour sign-off at every phase
Zero-risk transitionProven process before batch commit
Full documentationBOM • drawings • QC plan • tooling
Revision controlledECN-managed throughout NPI
Tooling trialledDies • jigs • fixtures proven before batch
Seamless handoffSame team, same facility, NPI → production
Key advantage: Because Eterna is a vertically integrated manufacturer, your prototype is built on the same machines that will produce the production batch — the same fiber laser, the same press brakes, the same welding stations, the same powder coating line. This means prototype results are directly representative of production quality. There is no gap between “prototype quality” and “production quality” because the process is identical.

The NPI process at Eterna (click to expand)

Structured phases • gate approvals • no shortcuts.
01

Design intake & DFM review

Your files reviewed • manufacturability assessed • improvements flagged

+

You share your 3D models, 2D drawings, BOM, and specifications. Our engineering team conducts a thorough Design for Manufacturing (DFM) review before any metal is cut.

  • File formats accepted: STEP, IGES, SolidWorks (.sldprt/.sldasm), DXF/DWG for 2D, PDF drawings. We can also work from sketches or reference samples if full CAD is not yet available
  • DFM review covers: Bend radius feasibility for material/thickness, minimum hole-to-edge and hole-to-bend distances, weld access and fixture strategy, forming sequence, hardware insertion feasibility, grain direction impact, tolerance achievability on our equipment
  • DFM report delivered: A written report listing every finding categorised as critical (must fix before prototyping), recommended (improves quality or reduces cost), and informational. Each finding includes the specific issue, the affected dimension/feature, and a proposed solution
  • Gate 1 approval: You review the DFM findings, approve or reject each recommendation, and authorise prototype fabrication. Design authority remains with you — we advise, you decide
Phase gating: Eterna does not proceed to the next phase without your explicit approval at each gate. This protects you from committing tooling investment or material cost until you are satisfied with the preceding phase. You always have full visibility and control over the NPI timeline and spend.

Prototyping capabilities (click to expand)

Rapid sheet metal prototypes on production equipment.
Not 3D printing: Our prototypes are not 3D-printed plastic models or soft-tooled approximations. They are real sheet metal parts made on real production machines using real production materials. The stiffness, weight, weld strength, powder coat adhesion, and hardware pull-out strength of a prototype from Eterna are identical to what you will receive in production. This matters when you are evaluating structural integrity, thermal performance, IP sealing, and equipment fitment.

First-Article Inspection (FAI)

The formal quality gate between NPI and production.

What the FAI includes

Dimensional inspection report: Every dimensioned feature on your drawing is measured using calibrated instruments (vernier calipers, micrometers, height gauges, CMM where required). Each measurement is recorded with nominal value, tolerance, actual value, and pass/fail result.

Visual inspection: Weld quality, powder coat finish (colour, texture, DFT, adhesion), hardware insertion (flush, perpendicularity), and overall cosmetic quality documented with photographs.

Functional checks: Door operation, lock engagement, latch depth, rail spacing (EIA-310-E verification for 19″ racks), gasket compression, cable gland torque — all functional requirements tested and recorded.

Material and process records: Material test certificate, powder coat DFT readings, adhesion test (ISO 2409), bend test (ISO 1519), and IP test result (IEC 60529) where applicable — all bundled with the FAI report.

How FAI protects your production program

Baseline established: The FAI report creates a permanent dimensional baseline for the product. Every subsequent production batch is compared against this baseline during in-process and final inspection.

Process validated: The FAI unit is built using production-intent processes and tooling. If the FAI unit is dimensionally correct, you have high confidence that batch production will be dimensionally correct because the same tooling and programs are used.

Risk eliminated: Any non-conformance discovered during FAI is corrected before batch material is procured and before production capacity is committed. Fixing a 0.5 mm error at FAI stage costs a few hours of engineering time. Fixing the same error after 100 units are welded costs thousands in rework and schedule delay.

Audit-ready documentation: The FAI package gives your quality team (and your customer’s quality team, if applicable) a complete, auditable record that the product meets specification at the point of production release.

FAI for existing products at new manufacturer: If you are transferring production of an existing product from another supplier to Eterna, the FAI process is equally important. It verifies that our equipment, processes, and materials produce a product that meets your specification — regardless of how the previous supplier made it. We treat production transfers with the same NPI rigour as new product launches.

Common NPI scenarios

New launch • localisation • redesign • vendor transfer.

New product launch

You have a new product design (or concept) and need to take it from drawing to production-ready. The full 6-phase NPI applies: DFM review, prototype, evaluation, FAI, tooling, pilot batch. This is the most common NPI scenario and where the process delivers the highest value.

Import localisation
You currently import an enclosure (from China, Turkey, Europe, etc.) and want to manufacture it domestically in India for cost, lead time, or supply chain resilience. We reverse-engineer or adapt the existing design for local materials and processes, build a prototype, compare it to the imported original, and qualify production through FAI. Common for telecom operators and data centre companies localising their enclosure supply chain.

Product redesign / cost reduction

You have an existing product in production but want to redesign it — to reduce cost, improve performance, accommodate a new equipment platform, or address field issues. Our DFM engineering team reviews the current design for cost-reduction opportunities (material rationalisation, part consolidation, process simplification), prototypes the revised design, and qualifies it through FAI before cutting over production.

Production transfer / vendor qualification
You have an existing product currently manufactured by another supplier and want to qualify Eterna as an alternative or replacement source. We receive your drawings, build a prototype on our equipment, submit FAI, and demonstrate that our output meets your specification. The existing product serves as the reference standard — we match or improve on it.

For purchasing teams evaluating dual-sourcing: Qualifying a second manufacturing source is one of the most common reasons OEMs engage our NPI process. Having an approved second source protects you against single-vendor supply risk, provides competitive pricing leverage, and gives you surge capacity for unexpected demand spikes. Our NPI timeline for vendor qualification is typically 4–6 weeks from drawing receipt to FAI approval.

Seamless NPI-to-production transition

Same team • same facility • same machines • zero handoff gap.

Why the transition matters

At many contract manufacturers, NPI and production are handled by different teams, sometimes in different facilities. This creates a handoff gap where knowledge gained during prototyping — the tricky bend that needs a shim, the weld sequence that prevents distortion, the masking approach that keeps powder out of threaded holes — gets lost or imperfectly communicated. The result: the first production batch has problems that the prototype didn’t, and everyone wonders why.

At Eterna, the same engineers, same operators, and same machines that built your prototype also build your production batches. There is no handoff between an “NPI team” and a “production team” — they are the same people in the same building. Every process trick, every learned workaround, every quality insight from prototyping is directly embedded in the production process.

What “production-ready” means at Eterna

A product is released to production status only when all of the following are complete:

Approved FAI: Your formal sign-off on the First-Article Inspection report.

Locked BOM: Bill of Materials with approved suppliers, specifications, and revision number under document control.

Production tooling trialled: All stamping dies, welding jigs, and assembly fixtures built, trialled, and producing conforming parts.

CNC programs saved: Laser nesting and press-brake programs stored for instant recall on repeat orders.

Quality plan finalised: Product-specific quality checksheet with stage-by-stage inspection points, acceptance criteria, and sampling rates.

Assembly instructions issued: Step-by-step assembly and integration instructions with photographs, torque values, and wiring diagrams.

Packaging specification defined: Packaging method, materials, labelling, and branding confirmed.

Ongoing support: NPI doesn’t end when production starts. As your product evolves (engineering changes, new variants, volume increases), we manage ECNs through the same revision-controlled process — updating drawings, BOM, tooling, and quality documentation to maintain production integrity. Our OEM contract manufacturing service provides the long-term production partnership that picks up where NPI leaves off.

Frequently asked questions

NPI, prototyping, FAI, and production readiness.

Ready to start your NPI journey?

Share your design files and volume forecast — we respond with an NPI plan, prototype quote, and timeline within 48–72 hours.