ISO 9001:2015 Certified

Precision CNC Machining Services for Complex Metal Parts

High-precision CNC manufacturing for prototypes and mass production across aerospace, automotive, and industrial applications.

±0.005mm
Tight Tolerance
50,000+
Parts / Month
98%
On-Time Delivery
CNC Machined Parts
Lead Time 3–5 Days
Ra 0.4μm Finish
5-Axis CNC MillingCNC TurningPrecision BoringVacuum CastingEDM MachiningSurface GrindingCMM InspectionAnodizingElectroplatingHeat TreatmentSwiss TurningThread Milling 5-Axis CNC MillingCNC TurningPrecision BoringVacuum CastingEDM MachiningSurface GrindingCMM InspectionAnodizingElectroplatingHeat TreatmentSwiss TurningThread Milling
15+

Years of Precision Manufacturing

200+

CNC Machines & Equipment

50K+

Parts Delivered Monthly

98%

On-Time Delivery Rate

Precision CNC Machining

Custom 3-axis and 4-axis CNC milling for tight-tolerance metal parts, rapid prototypes and low-volume production. Supports aluminum, stainless steel, brass, copper, titanium and engineering alloys with CMM quality inspection.

5-Axis CNC Machining

Advanced simultaneous 5-axis CNC machining using DMG MORI equipment with up to 18,000 RPM spindle speed. Built for complex geometries, aerospace components, medical parts, impellers and high-precision structural metal components.

Precision Swiss Machining

High-precision Swiss turning and CNC mill-turn machining powered by Japanese Tsugami systems. Ideal for micro parts, slender shafts, threaded components, medical hardware, brass parts and complex small-diameter metal components.

Vacuum Casting Services

Rapid vacuum casting for functional prototypes, small-batch plastic parts and pre-production validation. Suitable for complex shapes, appearance models, engineering samples and low-volume product testing before mass production.

Additional Manufacturing Services

We Provide

EDM (Electrical Discharge Machining)

Wire EDM & Sinker EDM for hardened steel cavities

Surface Grinding & Lapping

Mirror finish down to Ra 0.1μm

Heat Treatment & Case Hardening

In-house heat treatment for HRC 60+

Anodizing & Surface Coating

Type II/III anodize, PVD, powder coat

CMM Inspection & Reporting

Full dimensional reports, GD&T verification

Need Help With a Complex Part or Special Material?

Our engineering team has solved thousands of complex machining challenges. Tell us what you need — we'll recommend the best process, material, and tolerance strategy.

  • Free DFM review included
  • 24h engineering response
  • NDA available on request
  • Prototype to production
Talk to an Engineer →

Shipment Manufacturing & Tolerances

Engineered for Tight-Tolerance & Complex Geometry Parts

PROFIT's CNC machining centers are equipped with the latest multi-axis technology and operated by engineers with 10+ years of experience. We routinely achieve tolerances that challenge the limits of conventional machining.

  • Linear: ±0.005mm

    On CNC milled features across aluminum and steel

  • Roundness: 0.003mm

    CNC turned cylindrical components

  • Flatness: 0.003mm

    Ground flat surfaces on precision base plates

  • Surface: Ra 0.4μm

    Achievable as-machined finish quality

5-Axis CNC Machining Center5-Axis CNC Machining Center
Die CastingDie Casting
Magnesium Alloy
CNC MachiningMagnesium Alloy CNC Machining

Real-Time

CNC Manufacturing Operations

5-Axis CNC Milling

Our fleet of 5-axis CNC machining centers handle the most complex geometries — undercuts, deep pockets, and curved surfaces — all in a single setup to eliminate tolerance stack-up.

Max Part Size

800×600×500mm

Tolerance

±0.005mm

Materials

Al, Steel, Ti, Brass

Spindle Speed

Up to 24,000 RPM

5-Axis CNC Milling

Precision CNC Turning

Multi-axis CNC lathes with live tooling produce turned parts with exceptional roundness and concentricity for shafts, bushings, pistons, and complex rotational components.

Max Diameter

Ø 400mm

Roundness

0.003mm

Max Length

1200mm

Surface Finish

Ra 0.8μm

CNC Turning

Surface & Cylindrical Grinding

Precision grinding for the finest surface finishes and ultra-tight flatness tolerances. Ideal for tooling, dies, gauges, and mating surfaces requiring mirror-like quality.

Flatness

0.003mm

Surface Finish

Ra 0.1μm

Parallelism

0.003mm

Max Table

600×300mm

Surface Grinding

EDM Machining

Wire and sinker EDM for hardened steel, complex cavities, and features impossible to cut conventionally. No mechanical cutting force — ideal for delicate or thin-wall structures.

Wire Diameter

0.1–0.3mm

Tolerance

±0.003mm

Max Hardness

HRC 68

Surface

Ra 0.4μm

EDM Machining

Quality Assurance

Certified Precision Quality Systems for Critical Components

PROFIT's quality management system ensures every part meets or exceeds specification through documented, repeatable processes — from raw material to final shipment.

ISO 9001:2015 Certified Quality Management

All processes documented and audited under our certified QMS with continuous improvement protocols.

Full CMM Dimensional Inspection

In-house Zeiss CMM for 100% first article inspection with full dimensional reports and GD&T verification.

Material Certification & Traceability

Mill certificates and full material traceability records provided with every shipment. RoHS & REACH compliant.

Digital Reporting & PPAP Support

PPAP documentation, CPK analysis, and FAI reports available for automotive and aerospace customers.

ISO 9001:2015 AS9100D IATF 16949 RoHS
Quality Certification Documents

Precision Machining Solutions

For High-Requirement Industries

✈️

Aerospace & Aviation

AS9100D COMPLIANT

PROFIT machines structural brackets, housings, fuel system components, and actuation parts for commercial and defense aerospace. We work with aluminum alloys (7075, 6061), titanium (Ti-6Al-4V), Inconel, and stainless steels to the highest quality standards.

Aluminum 7075Ti-6Al-4VInconel 718AS9100D
Aerospace CNC Components
🏥

Medical & Healthcare

ISO 13485 COMPLIANT

Surgical instruments, implant components, diagnostic device housings, and orthopedic tooling machined to medical-grade tolerances with full material traceability.

316L StainlessPEEKTitanium
🚗

Automotive & Mobility

IATF 16949 CAPABLE

Engine components, gearbox housings, suspension parts, and EV battery structures for OEM and Tier 1 automotive suppliers worldwide.

AluminumCast IronPPAP
🤖

Automation & Robotics

HIGH-VOLUME READY

Precision actuator housings, joint components, gripper bodies, and motor mounting plates for industrial and collaborative robots at any volume.

Aluminum 6061StainlessBrass

From CAD Files to Precision Parts Delivery

Simple, Transparent Process

Upload your CAD file and receive a complete engineering review within 24 hours. We handle everything from DFM to final shipment.

01
📐

Upload Drawing & Specs

Upload STEP, IGES, or DWG files with requirements through our secure portal.

02
🔎

DFM Review & Quote

Engineers review for manufacturability and provide a competitive quote within 24 hours.

03

Order Confirmation

Approve the quote, sign NDA if needed, and we schedule into production immediately.

04
⚙️

Quality-Controlled Machining

Precision machining with in-process inspection at every critical stage.

05
📦

Inspect, Pack & Ship

Full CMM inspection, custom packaging, and tracked worldwide delivery.

Trusted by Engineering Teams

For Complex Precision Parts

What our customers say about PROFIT's precision manufacturing capabilities.

★★★★★

"PROFIT consistently delivers our titanium aerospace brackets to ±0.005mm with zero NCRs. Their 5-axis capability and CMM reporting have made them our go-to supplier for critical components."

MK

Michael Krueger

Sr. Mechanical Engineer — Aerospace OEM

★★★★★

"We switched to PROFIT for our medical implant tooling — the surface finish consistency and traceability documentation are exactly what our quality team requires. Lead times are excellent."

SL

Sarah Liang

Quality Director — MedTech Company

★★★★★

"From prototype to 5,000-piece production run, PROFIT maintained identical quality. The DFM feedback saved us weeks of redesign. Highly recommend for complex precision work."

AR

Alex Ramos

Product Engineer — Robotics Startup

Upload Your Drawings & Get a Technical Quote

Start Your RFQ Today

Our engineering team reviews every file personally. You'll receive a competitive quote with DFM feedback within 24 hours — no automated pricing guesses.

From precision prototyping to high-volume production, our advanced machine shop delivers unmatched tolerances. Upload your STEP, IGES, or PDF files below. Your data is strictly protected under our secure IT network and comprehensive NDA protocols.

  • Free DFM Engineering Review
  • ±0.005mm CNC Machining Capability
  • 3–5 Day Express Lead Time Available
  • ISO 9001:2015 Certified Quality
  • NDA Available on Request
  • Worldwide Shipping & Export Docs

📞 Sales & Engineering

+86 15875583127

✉️ Email

info@profitmachining.com


FAQ

Precision CNC Machining FAQs

Common questions about PROFIT's CNC machining capabilities and processes.

PROFIT routinely achieves ±0.005mm on CNC milled features and 0.003mm roundness on turned parts. For ultra-precision applications, our grinding department can hold ±0.002mm flatness. Our engineers will advise on the optimal process for your requirements during quoting.

We machine aluminum alloys (6061, 7075, 2024), stainless steel (304, 316L, 17-4PH), carbon and alloy steels, titanium (Grade 5, Grade 23), copper and brass, and superalloys such as Inconel 718 and Hastelloy. We also machine engineering plastics including PEEK, Delrin, and nylon.

Yes — PROFIT ships precision machined parts worldwide. We export to the USA, Europe, Japan, and Southeast Asia. We offer DDP, DAP, and FOB shipping terms. All international shipments include full inspection reports, material certificates, and custom packaging.

Standard RFQ response time is within 24 hours for most parts. Complex multi-component assemblies may take up to 48 hours. Upload your STEP/DXF/PDF files and receive a detailed quotation including DFM feedback, lead time, and quantity-break pricing.

Yes — Design for Manufacturability (DFM) review is included with every quotation at no extra charge. Our applications engineers flag potential manufacturability issues, suggest design modifications that reduce cost or improve quality, and recommend the best process and material.