CNC Milling Services

At Trendy, our CNC Milling delivers multidisciplinary processes and multi-axis interactive machining capabilities. We provide secondary milling services for plastics, metals, and special stone mold materials.

Benefiting from high-precision tolerances, we adopt customized multi-angle fixtures and dedicated tooling for milling operations. This ensures every surface and dimensional datum of finished parts fully meets customer specifications.

Achieve Your Goals with Trendy Precision

Our CNC Milling Capability

We handle simple 2D features to highly complex 5‑axis curved components for industrial customers worldwide.

Item	Specification
Machine Type	3‑axis / 5‑axis CNC milling
Best Tolerance	±0.005 mm (DIN 2768 standard)
Max Processing Size	Custom upon request
Minimum Wall Thickness	0.3 mm (material‑dependent)
Production Scope	Prototype, small‑batch, mass‑volume production
Quote Turnaround	Within 1 working hour
Sample Lead Time	As fast as 24 hours
Mass Production Lead Time	Based on project requirements

Materials We Machine for CNC Milling

We work with a wide range of metals and engineering plastics to match different application scenarios.

Material	Description & Typical Application
Aluminum series	6061, 6063, 7075, 5052 — widely used for automation, new‑energy housings
Stainless steel	303, 304, 316L — corrosion‑resistant structural parts
Brass / Copper	conductive components, fittings
Magnesium‑Aluminum Alloy	light‑weight parts for aerospace and handheld devices, special anti‑oxidation processing required
Titanium alloy	high‑strength lightweight aerospace & medical parts

Plastic Materials

• ,PPS. PEI,PMMA,ABS+PC, POM, ABS, PC, PA66, PEEK, PMMA, PTFE, PETG PEEK,PBT+30%GF

  Suitable for insulating parts, fixture, non‑metal prototype components.

Full Surface Finishing Post‑Processing

Complete post‑treatment options to improve hardness, corrosion resistance and appearance of milled parts.

• As‑machined
• Deburr & polishing
• Sandblasting
• Anodizing (Type II / Type III hard anodizing)
• Chromate conversion
• Electroplating: nickel, chrome, zinc
• Powder coating
• PTFE coating

Each finish can be tailored to your drawing requirements. We will suggest cost‑effective options during quotation.

Industries We Serve

Our custom CNC milled components are widely supplied to multiple high‑demand industries:

• New Energy: Valve bodies, conductive structural parts, battery assembly fixtures

• Medical Equipment: Precision non‑implant mechanical housings & fixtures

• Aerospace & Defense: High‑strength lightweight structural components

• Industrial Automation: Jigs, fixtures, robot mechanical parts

• Consumer Electronics: Precision housing, internal structural frames

• Mold & Tooling: Mold inserts, mold core milling

Why Choose Trendy Precision as Your CNC Milling Supplier

Micron‑Level Precision Control

Equipped with HAAS 5‑axis milling centers and high‑speed precision machines. Strictly follow DIN 2768 tolerance standards. Complex curved surfaces and tight‑tolerance features are achievable.

Fast Response & Short Lead‑Time

Free DFM analysis for every drawing. Quotation available within 1 hour. Urgent samples can be finished in 24 hours. Stable capacity supports both low‑volume prototypes and large‑scale mass orders.

One‑stop OEM & ODM Service

From drawing review, CNC milling, surface finishing to inspection and export‑grade packaging. You only need to provide CAD files, we take care of the whole manufacturing chain. Accept STEP, IGS, STP, DWG, DXF formats.

Rigorous Quality Assurance

Full‑process quality management: incoming material inspection, first‑article inspection, in‑process patrol inspection and final‑OQC check. CMM coordinate measuring machine supports dimension inspection reports upon request. ISO‑certified workshop.

One‑Stop Custom Machining Process

1. Submit your CAD drawings & requirements — upload STEP/IGS/DWG, note material, tolerance, surface finish and quantity

2.Free DFM review — our engineers check manufacturability and point out potential risks

3.Detailed quotation — clear price, lead‑time and process explanation within 1 hour

5.Sample / Production manufacturing — CNC milling & post‑processing

1. Full quality inspection — dimension test, visual check, provide inspection reports if needed

1. Export‑safe packaging & shipment — global delivery according to your shipping arrangement

New‑Energy Aluminum Valve Body

• Requirement: 5‑axis milling, complex flow channel, tight sealing tolerance, hard anodizing surface

• Solution: 5‑axis CNC milling + deburr + Type III hard anodizing

• Outcome: Dimensional consistency passed CMM inspection, stable mass‑delivery

Case 2 — Automation Stainless‑Steel Fixture Component

• Requirement: High wear resistance, multiple mounting hole positions

• Solution: 3‑axis high‑precision milling + deburr & passivation

• Outcome: Batch parts delivered on schedule for production‑line use

Case 3 — Titanium Alloy Aerospace Prototype

• Requirement: Light‑weight, high strength, complex curved geometry

• Solution: 5‑axis CNC milling, strict process parameter control

• Outcome: Prototype passed customer acceptance test

FAQ About Custom CNC Milling Service

Q1: What drawing formats do you accept?

A: STEP, STP, IGS, DWG, DXF are preferred. PDF drawings are acceptable for reference only. 3D CAD files are essential for accurate quotation.

Q2: What is your MOQ?

A: No strict MOQ. We support 1‑piece prototype, small‑batch and mass production.

Q3: Can you provide inspection reports?

A: Yes. CMM dimension inspection reports, material certificates can be provided upon customer request.

Q4: Is sample cost refundable for mass orders?

A: It depends on project conditions. Our sales will clarify this in formal quotation.

Q5: How do you protect my drawing confidentiality?

A: We respect intellectual property. Customer drawings will not be shared with third parties, and we can sign NDA if required.

FAQQ1：What CAD drawing formats do you accept for CNC milling quotation?

A：We prefer 3D files: STEP, STP, IGS. 2D engineering drawings: DWG, DXF with dimension & tolerance notes. PDF is only for reference and cannot be used for precise quotation.

Q2：Do you have minimum order quantity (MOQ)?

A：No strict MOQ. We support 1‑piece prototype, small batch and large‑volume mass production. Both R&D sample orders and commercial batch orders are welcome.

Q3：Can you provide inspection reports and material certificates?

A：Yes. CMM dimension inspection reports, material test certificates can be provided upon your request. Extra charges may apply for full‑batch formal inspection documents.

Q4：Will the sample fee be refunded when placing mass orders?

A：Sample refund policy depends on project complexity and order volume. Our sales team will clearly state this term in your formal quotation.

Q5：How do you protect my drawings and intellectual property?

A：All customer files are kept confidential internally. We will never share your drawings or samples with third‑parties. NDA non‑disclosure agreement can be signed before project start if you require.

Q6：I only have physical samples without CAD drawings, can you work on it?

A：Yes. We can do reverse engineering evaluation based on your physical samples. Please send us samples or clear multi‑angle photos first for feasibility assessment.

Q7：What tolerance can your CNC milling achieve?

A：Best achievable tolerance ±0.005 mm. General tolerance follows DIN 2768‑mk standard. Actual tolerance also depends on material, part structure and size. We will point out un‑realistic tolerance requirements during free DFM review.

Q8：How long will I get quotation after submitting drawings?

A Standard reply within 1 working hour for complete drawings. Complex multi‑component projects may take 2‑4 hours.

Q9：What are your typical lead‑times?

A：Urgent prototype: 24‑48 hours. Normal sample: 3‑5 working days. Mass production lead‑time depends on quantity, process and surface finishing, we will confirm in quotation.

Q10：Can you help with DFM design optimization?

A：Yes, free DFM analysis service for every project. Our engineers will mark manufacturability risks, suggest wall‑thickness, corner radius improvements to reduce cost and avoid production failure.

Q11：Which surface finishes can you provide? Are there any limitations?

A：We provide anodizing, sandblasting, polishing, electroplating, powder coating and more. Some finishes have material restrictions, for example hard anodizing works best for aluminum. We will recommend suitable finishes for your parts.

Q12：What about packaging and shipping?

A：We adopt anti‑collision export‑grade packaging for precision machined parts. You can use your own freight forwarder or we can arrange worldwide shipping for you.

Why you choose Trendy Precision

Trendy is your premier cnc turning company for precision CNC turning services, delivering more than just quality products.

	Tight Tolerance CNC Milling Parts have a tight tolerance of ±0.02mm, according to DIN-2768 manufacturing standards.		Strong OEM manufacturing capability With more than 100 cutting-edge CNC lathes and more than 20 years of experience, manufacturing high-quality CNC turned parts with precision and extraordinary appearance to meet all high-volume OEM machining needs
	Instant Free Quote Get reliable and detailed CNC turned parts quotes and detailed solutions for your CNC machining orders in as little as 1 hour through our own in-house quotation platform.		Custom Materials & Finishes 50+ Metals and Plastics, 10+ Surface Finishes; Smooth Surface and Strict Tolerance, Custom Material and Surface Treatment.
	Competitive Price Fast Quote, Flexible Pricing; High Dimensional Accuracy, High Speed and High Reliability.		High Quality & Lead on Time Our streamlined production process guarantees high quality and fast and consistent output, and simple orders can be completed as early as 24 hours after placing an order.

At Trendy Milling Arrangement

Our factory CNC milling process produces custom prototypes and end-use production parts in as fast as 1 day. Our factories use 3-axis milling and 5-axis indexed milling processes to manufacture parts from more than 30 engineering-grade plastics and metals. Through our semi-automated factory, you can also order first article inspection (CMM)

reporting, material certifications, and additional finishing options like anodizing, chromate plating, and powder coating. Additionally, our Trendy Network is ideal for machined production parts, you can also get more competitive pricing at higher quantities in addition to inspections, coatings, and other certifications.

Our CNC milling service is commonly used for:

Functional prototypes for performance verificationCustom jigs and fixtures for automated productionLow-volume production components with strict precision requirementsCNC Milling Materials

We stock more than 30 production-grade plastic and metal materials that are suitable for various part applications and industries.

cnc milled aluminum part PlasticsABS Acetal CPVC HDPE Nylon PEEK PEI PET PMMA Polycarbonate Polypropylene POM (Delrin) PPSU PTFE PVC

Metals support: Aluminum Brass Copper Stainless Steel Steel Alloy Steel Mild Low Carbon Titanium

Advanced Post-Processing & Surface Finishing Options for CNC Machined Parts

Coating and Plating Options

Choose from a comprehensive variety of coating, plating and surface finishing solutions for CNC machined parts.

We provide multi-color anodizing and numerous customized surface treatments.

These processes boost corrosion resistance, hardness, wear resistance and deliver premium visual appearance according to your requirements.

Through both the Factory and Trendy Network, you can access a broad range of post-processing capabilities to meet your part’s specifications.

Description	Materials	New work	Description
Bead Blasting	Metals	✓	Light bead blast to provide uniform finish and light texture
Anodizing	Aluminum Titanium	✓	Type I, II, and III finishes are available to improve part durability and add color
Chromate Coating	Metals	✓	Improve corrosion resistance, add electrical connectivity, and the ability to better paint parts
Electroless Nickel Plating	Metals	✓	abrasion-, and corrosion resistant finish that is compatible with aluminum, stainless steel, and mi
Part Marking	Metals	✓	Laser engraving or pad printing to add labeling and other text to parts
Passivation	Metals	✓	Enhance durability and corrosion resistance of metal parts
Powder Coating	Metals	✓	Add custom color to parts while improving durability
Inserts	Metals	✓	Incorporate off-the-shelf hardware components to facility assembly
Silk Screening	Metals	✓	Add design elements or labels to parts
Brushing	Metals	✓	Achieve uniform, satin-like surface finish
Polishing	Metals	✓	Create mirror-like finishes on metal parts
Black Oxide	Metals	✓	Improve corrosion resistance
Brushed + Electropolishing	Metals	✓	This combination of processing results in easy-to-clean parts that are corrosion resistant

CNC Milling | High Precision & Mass Production at Trendy

Trendy delivers professional high-precision CNC milling solutions for rapid prototyping, small-batch trials and large-scale mass manufacturing. Equipped with advanced HAAS and Jingdiao 5-axis machining centers, we ensure consistent micron-level precision and reliable quality across all production phases.

Micron Precision Capability

Our standard machining tolerance is ±0.01 mm. For ultra-precision parts, we achieve tight tolerances down to ±0.005 mm (5 μm). Key geometric tolerances — concentricity, flatness, perpendicularity and parallelism — can be held within 3–10 μm to satisfy stringent industrial requirements.

Stable Mass Production Capacity

We specialize in standardized batch manufacturing via unified toolpath optimization, robust fixturing and rigorous quality control. From prototype quantities to high-volume orders, we sustain uniform dimensional accuracy, superior surface finish and dependable lead times for every batch.

Wide Material Compatibility

We machine a broad range of metals including aluminum alloy, stainless steel, brass, mold steel and carbon steel. Single-setup machining enables efficient fabrication of complex curved surfaces, deep cavities and undercut features, maximizing production efficiency.

One-Stop OEM & ODM Service

Covering DFM optimization, prototype validation, batch machining, surface finishing and finished part delivery, we offer full technical support and structured project management to lower your overall costs and shorten time-to-market.

Related Services

• CNC Turning Services
• 5‑Axis CNC Machining
• Rapid Prototype Services
• Precision CNC Machining