From CNC turning and 3, 4 and 5-axis VMC milling to features held at ±0.01 mm and surfaces ground to 3 micron. One owner runs your CNC and VMC program from your drawing to your US dock, built as a India-first path. India first, more regions as your volume grows.
If you have ever sourced machined parts from anywhere in the world, you know the routine. Email at 9 in the morning. No reply. Email again at 4. Maybe an answer Tuesday. We built VIA INDIGOS so the fifth email never lands. Because one missed handoff on a CNC program can put a whole lot on hold and stall your line for weeks.
If you have ever sourced machined parts from anywhere in the world, you know the routine. Most buyers spend their week chasing updates instead of doing their real work. We built VIA INDIGOS to give that time back. Most precision parts also need finishing and the right cast or forged blank to get to your dock, and we run the whole chain under one owner. Audited CNC and VMC partner facilities across 22+ Indian cities, part of a 470+ facility audited partner network. Combined CNC partner network across turning, milling, 5-axis, and grinding. One owner on your program from drawing intake through US dock delivery. Whether your monthly volume is 200 pieces or 20,000, we set up the program the same way.
I walk the machine shop before a single PO is placed. We check spindle and axis capacity against the part envelope, workholding and fixturing, gauging and CMM capability, and the lab that will run your spectro analysis and mechanical tests. We pick partners who run machining, finishing, and inspection under their own roof, on their own QA team, on their own clock. One roof, one floor, one accountable team for the full machining chain. DFM happens before the first cut. FAI, in-process, and final gates come with a measured report, CMM data, surface finish readings, and a written verdict from our quality lead. Boots on the ground, every step of the way.
My team runs weekly checks on tool wear, cycle counts, and inspection compliance. We track SPC on critical dimensions, CMM data on every lot, and lot to lot consistency on critical features. We send you a status report every Friday that covers WIP, inspection results, fixture and tool health, and shipping milestones. Container loading photos reach your inbox before the seal goes on. Every lot carries a traceability ID from bar to your receiving dock. Nothing ships until the dimensional report and the surface finish report both show green. We do not wait for you to ask. We report because that is how a machining program should run.
Most contract manufacturers worldwide drop the ball at the handoff between two teams. We hold every one. Ten real stages, drawing to your dock. No sub-step skipped, no handoff left to chance.
CNC + VMC machining · brake rotors
Vented, drilled and slotted brake rotors in gray cast iron, machined on CNC and VMC, zinc plated for corrosion resistance, then balanced and measured. Built for aftermarket and OEM programs, run by one accountable partner from your drawing to your dock.
Measured on a CMM · balanced · traced to the casting heat · report VI-BD-001
A machined part is cut to the print, not formed close to it. The tolerance is measured, not assumed. The surface is specified, not whatever the process gave you. Three controls separate a machining program that drops into your assembly from one that ships you a sorting job.
We hold ±0.01 mm on critical diameters and true position on bore patterns. Every program proves it on the CMM at first article, on every callout, against your datums. A part that measures right on paper but drifts on the floor is the part that stops your line, so we measure before the lot runs, not after it lands.
Turned at Ra 0.8, ground to Ra 0.2, honed to Ra 0.1 on bores that have to seal and slide. Each finish is a callout we measure on a surface tester, not a guess off the machine. A sealing face that came back rough is a leak in the field, so the finish is signed before the part ships, with the reading in the report.
Five-axis machining cuts contoured features, cross holes, and tight internal corners in a single setup. Fewer setups means less stack-up error between datums, which is where most fit problems come from. The part comes off the machine closer to print, and the first article report proves the relationship between every feature, not just each one alone.
CNC turning, 3-axis milling, 5-axis milling, grinding, and honing all run through the same VIA INDIGOS playbook. One owner from drawing to dock. One status update every Friday. One India network of 33 plus audited partner facilities behind every program.
The workhorse for shafts, pins, housings, flanges, and bushings. Single point and live tooling on multi-axis lathes. Tolerances from plus minus 0.05 mm down to plus minus 0.01 mm on critical diameters, Ra 0.8 as turned.
Prismatic parts, plates, brackets, manifolds, and housings. Pockets, slots, drilled and tapped features held in one fixture. Tolerances to plus minus 0.025 mm, Ra 1.6 as milled.
Complex contoured parts cut in one setup. Impellers, blades, structural brackets, and aerospace or medical geometry. Fewer setups means less stack-up error between datums. Tolerances to plus minus 0.02 mm.
Where turned or milled tolerance is not tight enough. Cylindrical, surface, and centerless grinding on hardened and soft materials. Tolerances to plus minus 0.005 mm with surface finish down to Ra 0.2.
For bores that must seal and slide. Hydraulic cylinders, valve bodies, and bearing bores honed for roundness and surface beyond what grinding reaches. Tolerances to plus minus 0.002 mm.
Three gates, three sign offs, a measured report at every step. No lot moves forward unless the gate before it is closed. A part that runs without a first article is a part that fails inspection deep into the run, which is the most expensive place to find it. Review is a die that fails at shot 4000, and we would rather catch it on the bench than on your line.
The first part off the program is measured against every callout on the CMM before the lot runs. Datums, true position, profile, and bore sizes compared back to the print. Signed off and archived before a full run starts.
SPC on critical dimensions at a set frequency through the run. CMM checks between batches. Tool-wear offsets logged so a worn insert never silently drifts a feature out of spec.
PPAP Level 3 package complete. PSW signed by the buyer. Capability studies on critical features above Cpk 1.67. Lot traceability live. The lot releases only after the buyer has the full package in hand.
A machining program that runs across two countries, three suppliers, and a dozen handoffs is going to break unless someone owns every step. Below is what your program looks like under one VIA INDIGOS owner, end to end.
If a metric does not have an owner, a target, and a data source, it is not a metric. Below is the scoreboard we run on every CNC machining program, refreshed weekly, surfaced in your Friday status email.
Upload your drawings. We review, run DFM, and return a full landed cost breakdown with tooling timeline and PPAP scope. You get one contact from intake to ship.
Tell us three things and we recommend the right CNC or VMC process for your part. Turning, 3, 4 or 5-axis milling, grinding, or honing. Engineered for your geometry, your volume, and your tolerance.
Most India sourcing is run from a laptop in Cincinnati. Ours is not. Our team is physically present at partner facilities for fixture trials, first article runs, finishing sign offs, and production launches. When something slips, we see it before you do. When quality holds, we have the photo evidence to prove it.
22+ Indian manufacturing cities. 33+ qualified CNC and VMC partner facilities. Real people on the floor making sure your drawing becomes a part that passes PPAP the first time.
22+ cities. 33+ audited CNC and VMC partners across turning, 3, 4 and 5-axis milling, horizontal machining (HMC), grinding, and honing. Hover any marker to see partner count and what runs there.
22+ cities · 33+ CNC partners · 1,250+ machines across turning, milling, and grinding
Every drawing carries a tolerance. Every tolerance carries a process. Below is what each CNC process can hold as machined, and what we can deliver after a grinding or finishing pass. Numbers are typical for VIA INDIGOS programs across common aluminium, steel, and stainless grades.
| CNC process | Typical materials | As machined tolerance | After grinding / finishing | Reference standard |
|---|---|---|---|---|
| Turning | 6061, 7075, 4140, 304, 316, brass | ±0.01 mm | ±0.005 mm | ISO 2768-f |
| 3-axis milling | 6061, 7075, 4140, 304, 316 | ±0.025 mm | ±0.01 mm | ISO 2768-m |
| 5-axis milling | titanium, Inconel, 17-4 PH, 6061 | ±0.02 mm | ±0.01 mm | ISO 2768-f |
| HMC milling | cast iron, 4140, 6061, 7075 | ±0.02 mm | ±0.01 mm | ISO 2768-f |
| Grinding | hardened steel, carbide, ceramics | ±0.005 mm | ±0.002 mm | ISO 286 IT5 |
| Honing | cast iron, hardened bores, bronze | ±0.005 mm | ±0.002 mm | ISO 286 IT4 |
Tighter tolerances available on request. Material, feature geometry, and fixturing all affect achievable tolerance. We confirm callouts during DFM review before quote.
Turning vs 3-axis vs 5-axis vs grinding vs mill-turn. Five honest comparisons, not marketing claims. Use this to short list before you send the drawing.
Round parts, shafts, bushings, high throughput, tight diameters.
Prismatic parts, brackets, housings, plates.
Complex geometry, fewer setups, aerospace and medical.
When turned or milled tolerance is not tight enough.
Parts needing turning and milling in one setup.
Not sure which fits? Use the process picker above and we recommend the right process for your geometry, volume, and tolerance in 30 seconds. Or send the drawing and we quote both options where it makes sense.
Every industry has its own certs, its own regulatory pressure, its own drawing conventions. The handoff discipline stays the same. What changes is the technical documentation that moves with the part.
When machining is the right call and when a near-net process saves you money. Tolerance, surface finish, tooling economics, and the volumes where each process actually wins.
Read the post →The two workhorse aluminium grades for machined automotive and industrial parts. Which one earns the cost premium, which one is overspecified, and what your finishing partner actually needs to know before quoting.
Read the post →IATF 16949, ISO 9001, AS9100D. What the certifications mean, what they actually prove, and what a tight focus on compliance buys your machining program when something goes wrong.
Read the post →Plain English answers, written for procurement and engineering teams who want a real number, not a brochure. Last reviewed by Mandeep Singh in June 2026.
Most CNC parts need only soft jaws or a simple fixture, which we cut in days, not weeks. From PO to a signed first article is typically 2 to 4 weeks, depending on material lead time, programming, and how many setups the part needs. Parts that need a dedicated fixture or 5-axis work push toward 4 to 6 weeks. If a shop quotes you a lead time, ask whether it includes the first article CMM report and PPAP, or just parts in a box.
3-axis wins for prismatic parts, plates, brackets, and housings where the features sit on faces you can reach from above. Lower cost per part, simple fixturing, fast cycle. 5-axis wins for contoured geometry, undercuts, and parts where many features must hold a tight relationship to each other, cut in one setup to remove stack-up error. Higher machine cost per hour, but fewer setups and less inspection risk on complex parts.
PPAP Level 3 means we send the buyer the full Production Part Approval Process package: signed PSW, design records, a dimensional report on every callout, material test reports, capability studies with Cpk on critical features, MSA on the inspection method, control plan, PFMEA, and the appearance approval report when surface finish is a callout. The lot does not release until the buyer has the package in hand and the PSW is signed.
Every part is machined in India at an audited partner facility our team has walked in person. One VIA INDIGOS owner stays accountable from drawing intake to your dock, with first article CMM and in-process SPC documented on every lot. Country of origin is India, stated on the commercial invoice and certificate of origin.
Machining has no tooling to amortize, so minimums are low. Our partners run prototype and bridge lots as small as 10 to 50 pieces, and production releases scale from there. Annual volume changes the price per part, not whether we can make it. Tell us the part and the annual volume and we tell you the price break points and the floor.
First article inspection on a coordinate measuring machine, against every callout on the drawing, before the lot runs. We send you the CMM report with datums, true position, and profile measured, not a verbal pass. Through the run we hold it with SPC on critical dimensions, CMM checks between batches, and tool-wear offsets logged so a worn insert never drifts a feature out of spec.
Aluminium 6061 and 7075 machine fast and finish clean, ideal for housings, brackets, and heat sinks. Steel and stainless, 4140, 304, 316, and 17-4 PH, cover structural and corrosion duty. Titanium and Inconel run on 5-axis for aerospace and medical. Each material changes feeds, speeds, and tool wear, which we plan into the quote. Every bar arrives with a mill cert matched to your drawing before it is cut.
FAI. The first part is measured against every callout on the CMM before the lot runs, datums, true position, profile, and bore sizes vs the CAD print. In-process. SPC on critical dimensions, CMM checks between batches, tool-wear offsets logged, operator sign-off each shift. Final. PPAP Level 3 complete, PSW signed, Cpk above 1.67 on critical features, lot traceability assigned.
Default is FOB Nhava Sheva or CIF US West Coast. We offer DDP on request with a logistics markup that we disclose up front. Inbound preferences are Los Angeles, Long Beach, New York, Newark, and Chicago, with alternates only when they improve lead time or cost. For programs with US warehouse pull, we hold inventory and ship JIT to your dock on a published rate card.
You do. Any dedicated fixture or workholding you pay for transfers to you on full payment, in writing, with a tooling passport that documents fixture ID, cycle history, and storage location. We hold it at our partner facility on a bailment basis, available for inspection or transfer at any time. If you want to move the program in 18 months, the fixtures and programs are yours.
Production is typically 30 percent at PO and the balance at shipment, or net 30 for approved buyers. Tooling and fixtures are milestone based, for example 40 percent at PO, 30 percent at first article, 30 percent at approval. Every number is fixed in the PO before work starts.
One owner stays on your program and sends a written status every Friday across RFQs, tooling, production, and logistics. You get a first response within 24 hours on any question, plus photos or video at first article and inspection. You never have to chase an update.
Yes. Every lot ships with material test certificates, the inspection report against your drawing, and a traceable lot ID. PPAP programs include the full documentation package, so any part traces back to its heat, machine, and inspection record.
Your drawings and specs sit under a mutual NDA and are never used to make parts for anyone else. Your design stays yours, your tooling stays yours, and access is limited by role. We do not publish or share partner facility names without your approval.
After first article approval, standard CNC and VMC production usually ships in 3 to 6 weeks, depending on quantity, material availability, and finishing. We confirm a firm date on the PO and flag any schedule risk early, well before it affects your dock date.
Send us your drawings. You get a full landed cost breakdown, a tooling timeline, the recommended machining process, and a PPAP scope. One contact from intake to ship. No commitment required.
30 minutes · no obligation · bring your drawings
Three working templates we use on every machining program. PPAP checklist. Tooling Gantt template. Supplier audit checklist. Yours to keep, even if we never work together.
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