Will you sign an NDA before I share my design?

Yes. We sign a mutual NDA before you share drawings, samples, or specifications. We never reuse, resell, or sub-brand a customer's design, and tooling we cut for you is reserved for your orders only.

Can you scale from a prototype to full production?

Yes. A typical path is 1–5 prototypes, a 20–100 piece pilot run, then production batches. The CNC program and inspection plan created at prototype stage carry forward, so quality stays consistent as volume grows. For high volumes we can also move suitable parts to die casting or injection molding.

What inspection documentation do you provide?

Standard orders include a dimensional inspection report. On request we provide First Article Inspection (FAI / AS9102-style), material certificates, RoHS/REACH declarations, and PPAP-level documentation for production parts.

OEM & ODM CNC Machining Service — NDA, DFM

OEM or ODM — Which One Are You?

The two terms get used loosely, so it helps to be precise. The difference decides how much engineering work sits with us versus you:

	OEM (build-to-print)	ODM (design + build)
You bring	A finished drawing or CAD file	A requirement, concept, sample, or sketch
We add	Manufacturing + QC to your spec	Engineering, material & tolerance design, then manufacturing
Best when	Your design is locked	You need the part developed, not just made
Design ownership	Yours	Yours — we assign all rights to you

EKINSUN runs both tracks daily. If you don't even have a drawing, our no-CAD ordering and reverse engineering services feed straight into an ODM program.

Custom OEM precision CNC machined parts — housing, shaft and bracket — by EKINSUN Guangdong China — OEM parts machined to customer drawings under NDA — housing, shaft and mounting bracket from a single production run. Free DFM review, first-article inspection, and full documentation included.

What an OEM/ODM Program Includes

Mutual NDA signed before any file or sample changes hands
Free DFM (design for manufacturing) review — we flag thin walls, unreachable features, and tolerances that add cost before they become a problem
Dedicated tooling & fixtures reserved for your parts only
Material traceability with certificates on request
Inspection documentation — dimensional reports as standard, FAI and PPAP for production
One engineer as your point of contact, replying within 24 hours

From Prototype to Production

The value of a single partner is consistency: the CNC program, fixtures, and inspection plan written at the prototype stage carry forward unchanged, so part 1,000 matches part 1.

Prototype (1–5 pcs)

Prove form, fit and function. DFM feedback applied before tooling decisions.

Pilot Run (20–100 pcs)

Validate the process at small batch. First Article Inspection signs off the spec.

Production Batches

Repeatable batches with locked program and inspection plan. Forecast-based scheduling.

Process Transfer (high volume)

Where it lowers cost, suitable parts move to die casting or injection molding — same QC owner.

For the small-quantity end of this path, see low-MOQ custom parts and our low-volume production capability.

How We Protect Your IP

Sharing a design with an overseas factory is the number-one worry for procurement teams. We address it in writing: a mutual NDA before disclosure, no reuse or sub-branding of your design, customer-reserved tooling, and a clear paper trail. First time importing? Read how we protect your design when ordering from China.

Quality & Documentation

We are ISO 9001 certified, and quality scales with the program. Typical documentation by stage:

Stage	Standard docs	On request
Prototype	Dimensional report	Material cert
Pilot	Dimensional report + FAI	RoHS / REACH declaration
Production	Batch inspection report	PPAP package, CoC, SPC data

Tight-tolerance parts are verified on a CMM — see tolerance & inspection.

Industries We Build For

Automotive and motorsport, industrial equipment, robotics and automation, marine, energy, and lab/scientific instruments. We are a custom-parts manufacturer, not a catalog supplier — if it can be machined, cast, or molded, it fits our scope.

OEM Parts From Our Facility

A cross-section of OEM and ODM production work — branded components, private-label parts and custom assemblies:

CNC machined OEM parts undergoing quality inspection at EKINSUN Guangdong facility — OEM batch under quality inspection — 100% first-article, AQL sampling for production. CMM dimensional reports included.

OEM branded brass fittings in blister tray ready for shipping from EKINSUN — OEM-branded brass fittings in custom blister packaging — private label, barcode, and retail-ready packing arranged by EKINSUN.

EKINSUN quality control inspection room with engineers reviewing OEM parts in Guangdong — Dedicated QC room — all OEM orders inspected before packing with documented CMM and AQL records supplied to the customer.

Frequently Asked Questions

OEM means you supply the design and we build exactly to it. ODM means you bring a requirement or concept and we engineer the part — materials, tolerances, geometry — then manufacture it. We do both, and you own the design in either case.

Yes — a mutual NDA before any drawing or sample is shared. We never reuse, resell, or sub-brand a customer's design, and your tooling is reserved for your orders only.

Yes. A typical path is 1–5 prototypes, a 20–100 piece pilot, then production batches, with the same program and inspection plan carried forward. High-volume parts can transfer to casting or molding.

Dimensional inspection reports as standard; FAI, material certificates, RoHS/REACH declarations, and PPAP-level documentation on request for production parts.

OEM & ODM
CNC Manufacturing

OEM or ODM — Which One Are You?

What an OEM/ODM Program Includes