At Essengold, we have no big or small task that we would not handle; we give Super-fast prototyping and assembly services! Request a quote now!
Our joint venture is ISO9001: 2008 certified, specializing in CNC machining services. This includes custom and standard machines for CNC screw components, Swiss-milled parts, turn-mill parts, or secondary operations.
The role of surface finish in CNC machining cannot be overemphasized, as it influences both the functional and visual appeal of produced parts.
Precision-machined plastic parts for engineers and procurement teams worldwide. From single prototypes to production runs — tight tolerances, clean finishes, and fast lead times at competitive China-based pricing.
Experience
Precision
Supported
Lead Time
Prototypes
CNC plastic machining is a subtractive manufacturing process where computer-controlled tools cut, mill, or turn solid plastic stock into precise finished parts directly from your CAD files.
It delivers tighter tolerances and better surface quality than most molding processes — without the tooling cost or lead time. It is the fastest path from the design file to the functional plastic part.
Not sure which process fits your project? Here is a direct comparison.
| Factor | CNC Plastic Machining | Injection Molding |
|---|---|---|
| Tooling cost | None — no molds required | High — molds cost $3,000–$50,000+ |
| Minimum order | 1 piece (prototype-friendly) | Typically ±0.1–0.5 mm |
| Lead time | 5–15 business days | 4–12 weeks (tooling + sampling) |
| Tolerances | Up to ±0.005 mm | Typically 500–1,000+ pieces |
| Design changes | Update CAD file — no rework cost | Mold modifications are expensive |
| Best volume | 1 to ~5,000 parts | 10,000+ parts per run |
3-axis and multi-axis milling for prismatic parts, slots, pockets, and complex contoured surfaces. Ideal for housings, brackets, and structural components.
Rotational parts including shafts, bushings, rollers, and threaded components machined to tight diameter tolerances.
Precision holes and threaded inserts to your exact specification, including blind holes, counterbores, and countersinks.
Single pieces and small batches with no minimum order requirement. Get real-material functional prototypes in days, not weeks.
Cost-effective batch runs with consistent dimensional accuracy across every part — no mold investment needed.
Internal features, undercuts, and tight-tolerance fits that injection molding cannot achieve without expensive tooling.
We work with eight engineering-grade plastics. Each has different mechanical, thermal, and chemical properties.
Surgical instrument components, diagnostic device housings, fluid routing parts in PEEK and Ultem.
Interior trim, fluid system parts, electrical connectors in ABS, Nylon, and POM.
Lightweight structural components, duct parts, insulation in PEEK, Ultem, and Torlon.
Device housings, button components, lens covers in ABS and Acrylic.
Machine guards, wear-resistant sliding parts in POM and PTFE.
Functional single-piece prototypes and design verification models with no minimum order.
Standard: ±0.1 mm
Precision: Up to ±0.005 mm
Every part is measured against your drawing or 3D model before it ships.
| Finish Type | Description | Best For |
|---|---|---|
| As-Machined | Visible tool marks, Ra 3.2 µm typical. | Internal parts, functional prototypes |
| Smoothed | Light sanding removes visible lines, Ra 1.6 µm. | Parts needing better aesthetics |
| Polished | Mirror-like finish, Ra ≤ 0.8 µm. | Optical components, sealing surfaces |
| Bead Blasted | Uniform matte texture. | Housings, consumer products |
Send us your STEP, IGES, or STL file along with material and quantity requirements.
Our engineers review your design and provide a detailed quote within 4–24 hours.
Your parts are machined on CNC equipment with strict quality control at every step.
Parts ship in 5–15 business days via DHL, FedEx, or air freight to your door.
There is no MOQ for prototype machining. You can order as few as 1 piece. For production runs, we recommend quantities above 50 pieces for best unit pricing.
Standard lead time is 5–15 business days depending on complexity and volume. Rush orders (3–5 days) may be available — contact us to check availability.
Yes. We provide bead blasting, polishing, painting, silk-screen printing, and ultrasonic welding. Specify your finish requirements when requesting a quote.
We prefer 3D CAD files (STEP/IGES) for accurate quoting and machining. However, if you only have a 2D PDF drawing with dimensions, our engineering team can work from it — though turnaround may take slightly longer.
Every batch undergoes dimensional inspection using CMM, calipers, micrometers, and optical comparators. We provide an inspection report upon request.
Upload your CAD file today and receive a detailed quote within 24 hours.
No commitment required.
Please upload 3D and 2D files if available. If you cannot do so, please try compressing the files into a Zip or rar format before uploading. You can also email us at sales@essengoldparts.com.
