Rapid Custom Parts Manufacturing Services

From prototype design to on-demand production, delivering high-quality manufacturing services at competitive prices.

Quick Quote

Higher Precision, Faster Turnaround

From prototype to mass production, one-stop manufacturing service.

PartsMastery Your Trusted Choice

With 15 Years of Excellence, Born in Shenzhen – The Heart of Global Manufacturing Operating in the Greater Bay Area, we partner with the region's top-tier parts suppliers to tackle your manufacturing challenges. Experience fast turnaround with high-quality parts delivered in as little as 24 hours.

Injection molding

From prototype to mass production — injection molding, overmolding & insert molding with fast-track tooling. No MOQ required, T1 samples in 2 weeks, capacity from 1 to 1M+ units.

CNC milling

High-precision CNC milling and turning for prototypes through production. Tolerances to ±0.001″, thin-wall capability down to 0.020″, 1-day lead time available.

3D printing

From concept to functional part in days — SLA, HP MJF, SLS & SLM 3D printing with ±0.008″ dimensional accuracy. Fast, precise, production-ready.

Die casting

High-volume die casting built for precision. Aluminum, zinc, magnesium and copper alloys with 0.030″ minimum wall thickness. Production batches from 1,000 units.

Sheet metal processing

Expert sheet metal services: precision laser cutting, bending, welding and stamping. Tolerances held tight, walls as thin as 0.008″, 3-day lead time — from prototype runs to high-volume production.

Vacuum casting

Soft-tooled plastic prototypes: tolerances to ±0.002″, up to 20 parts in 15 days. A cost-effective bridge between CNC prototypes and production injection molding — ideal for design validation and pre-production runs.

Wire EDM

When conventional machining hits its limit, EDM delivers. Sinker and wire EDM for sharp internal corners, ultra-thin walls and complex geometries — all burr-free. Kerf tolerance of 0.001″ to 0.010″, no hard tooling needed.

Extrusion

Precision metal extrusions: quality you can trust, prices that make sense. Fast 2-week turnaround with a full suite of post-machining options — cutting, machining, finishing and more.

Made in China, Delivered Globally

Our engineers are all fluent in English, enabling seamless communication to turn your custom specifications into high-quality parts with speed and precision.
Leveraging global shipping hubs, we deliver to Europe and the Americas in as little as one week.

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How to Work With Us

Upload CAD files

Upload your 3D model to get instant quotations, DFM analysis and full production control. We also offer design services if you don't have drawings.

Get quotation

Configure project details including materials, processing options and quantities, acquire precise quotation and DFM feedback, then proceed with order placement.

Produce on demand

After confirming your manufacturing project, we perform precision processing in accordance with manufacturing standards.

Quality inspection & delivery

We conduct multiple quality inspections on manufactured parts to ensure full compliance with standards.

How to guarantee quality

Advanced testing equipment

Long-term industry experience enables us to accurately understand and implement complex designs and high-precision requirements, ensuring high quality and exceeding manufacturing standards after using advanced technology and machinery.

Strict Document Inspection

Our mechanical engineers perform design review and material verification on drawings before parts are produced, and conduct on-site inspections of fixtures and mechanical equipment systems in the shop.

After-Sales Service

Major Industries Service

Aerospace

Precision structural parts with aerospace-grade accuracy & reliability.

Automotive

Fast delivery of all auto parts from engines to body panels, meeting strict industry standards.

Electronics

We produce electronic parts covering the entire process from prototype to mass production.

Medical

We custom-manufacture high-precision, hygienic and durable parts for medical devices.

What Our Customers Say

I am very pleased with my order of these brackets. The fit and finish The parts feature premium quality and high dimensional accuracy, fully meeting my acceptance standards. No surface finish specifications were provided at order placement, yet the as-produced surface finish is remarkably satisfactory. The pricing is highly cost-effective matching the finished quality, and production turnaround was remarkably swift. Items are custom motor mounts and pulley brackets designed for 3D printer application.is excellent, made to the exact measurements I submitted. Shipping was very fast and reasonably priced Would definitely recommend and use again!

Aluminum 6061, No Surface Finish

Prompt delivery paired with seamless communication throughout the whole order cycle. The finished components arrived in impeccable condition, fully matching my design specifications. Their support team offered timely replies, enabling smooth, streamlined technical discussions from inquiry to shipment.

Aluminum 6061, Bead blasting + Anodizing-Natural-Matte

I’m incredibly satisfied with both the finished items and their outstanding quality. Surfaces feature impeccable fine finishing, all dimensions are held precisely within specified tolerance ranges. I absolutely intend to place repeat orders down the line.

Aluminum 7075, Anodizing-Dark Gray-Matte

製作精度は申し分なし。写真通り板金曲げの合わせ目隙間を 0.5mm 指定したらきっちり仕上がっています。
ただアルマイト面がざらざらしていて想定より粗く、原因は分かりません。
風合いは変わったけど普通に使えるので支障なし。滑り止めと考えればむしろメリットのある仕上げです。

Aluminum 5052, No Surface Finish

I’m thoroughly impressed with the finished mouse outer casing. The PA12 material delivers a far superior physical surface finish compared to all pre-purchase reference photos I reviewed online. I’m wholly satisfied with this purchase and plan to continue ongoing cooperation with PartsMastery for upcoming projects.

PA12-HP Nylon, Dyeing-Dyed Black

Turned out fantastic!

Aluminum 6061, Bead blasting + Anodizing-Black-Matte

All components achieve seamless fitting alongside premium-grade surface finishing. The finished pieces surpass the original counterparts in both visual appearance and assembly compatibility. Thread integrity and strict dimensional tolerances fully comply with stipulated technical specifications.

Aluminum 6061, Bead blasting + Anodizing-Black-Matte

Premium-grade goods and dependable aftersales service deliver a satisfying shopping experience. Smooth checkout, dimensionally accurate components and premium surface finishes prompt me to arrange follow-up orders regularly.

Aluminum 6061, Bead blasting + Anodizing-Black-Glossy

Parts meet specification requirements and my expectations perfectly with zero problems. Delivery was slightly late, yet I’m content with the order and will reorder from this vendor next time.

Aluminum 7075, Bead blastinAluminum 6061, Bead blasting + Conductive anodizing-Naturalg...

We received reliable after-sales assistance while all finished parts deliver tight dimensional accuracy and premium-grade surface treatment results.

Aluminum 7075, Bead blasting + Anodizing-Red-Matte

Everything came out perfectly as designed. Not only do the parts fit up nicely, but the surface finish has exceeded what I pictured beforehand. The careful attention to manufacturing details is obvious, leaving me really pleased with this whole order.

Aluminum 5052, No Surface Finish

Print quality came out really crisp and fully aligns with everything I’d requested. The medallion is flawless right out of production with no extra trimming or refinishing needed. It’s nice you kept me updated promptly on production matters and finished printing fast. Size is spot on with absolutely no warping at all, and I’ll absolutely come back to order again.

Imagine Black, Sanding-General Sanding