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| Al | SS | CS | Br | Cu | Zn |
| Aluminum | Stainless Steel | Carbon Steel | Brass | Copper | Galvanized Steel |
| plate, round bar and billet | plate, round bar and billet | plate, round bar and billet | plate, round bar and billet | plate, round bar and billet | sheet and formed profiles |
| • Lightweight | • High strength | • Good strength | • Good machinability | • Excellent conductivity | • Basic corrosion protection |
| • Easy to machine | • Corrosion resistant | • Cost-effective | • Attractive appearance | • Good thermal performance | • Cost-efficient |
| • Good corrosion resistance | • Durable in harsh environments | • Easy to weld and fabricate | • Corrosion resistant | • Easy to form and process | • Good formability |
| Applications: | Applications: | Applications: | Applications: | Applications: | Applications: |
| Housings, panels, brackets, structural parts, automation components | Industrial parts, equipment, enclosures, brackets, outdoor products |
Frames, supports, machine parts, welded structures, industrial equipment | Fittings, connectors, decorative parts, hardware, precision components | Electrical parts, thermal components, connectors, industrial functional parts | Sheet metal parts, brackets, panels, enclosures, outdoor applications |
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The right surface finish can improve appearance, corrosion resistance, wear resistance and service life.
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Anodizing
Improve appearance and basic protection for aluminum parts
🎨
Powder Coating
Provide good appearance and surface protection for metal parts
💨
Sandblasting
Improve surface texture and prepare for further finishing
📏
Brushing
Create linear texture for a refined and consistent look
✨
Polishing
Enhance smoothness and appearance for metal surfaces
💧
Electroplating
Improve appearance or function with a metallic coating
⬛
Black Oxide
Create a black surface
and provide basic protection
🛡️
Zinc Plating
Provide basic corrosion
protection for steel parts
🪙
Nickel Plating
Enhance appearance
and protection for metal parts
✅
Passivation
Improve surface condition
and corrosion resistance for stainless steel
🖌️
Painting
Add color and protection
for a wide range of applications
🔥
Heat Treatment
Improve material performance
based on usage requirements
Wide range of engineering plastics for different structural
| ABS | PC | PMMA (Acrylic) | POM | PA (Nylon) | PE |
| High impact strength, easy processing, good rigidity |
High transparency, excellent impact resistance, heat resistant | Excellent clarity, weather resistant, easy to polish | Low friction, high wear resistance, dimensional stability | Tough, wear resistant, good chemical resistance |
Chemical resistant, low friction, good electrical insulation |
| PEEK | PP | HDPE | HIPS | LDPE | PBT |
| High temperature resistance, high strength, chemical resistant | Chemical resistant, low density, easy processing |
High strength, chemical resistant, impact resistant | High impact, easy processing, cost-effective | Flexible, chemical resistant, good clarity |
Dimensional stability, chemical resistant, good electrical properties |
| PPA | PAI | PET | PPS | PS | PVC |
| High temperature, high strength, chemical resistant | Extreme strength, heat resistant, wear resistant | High strength, transparent, chemical resistant | Heat resistant, chemical resistant, flame retardant | High clarity, easy processing, cost-effective | Chemical resistant, flame retardant, cost-effective |
| PTFE (Teflon) | UPE | Bakelite | FR-4 | PEI |
| Ultra-low friction, chemical resistant, heat resistant | Extreme wear resistance, low friction, impact resistant | Heat resistant, electrical insulation, dimensional stability | Flame retardant, electrical insulation, high strength | orange /withe /black |
With strict adherence to industry tolerances, our CNC machining services ensures consistent accuracy for all CNC machined parts, allowing each component to integrate perfectly.
| Item | Details | ||
| Title | Tolerances for CNC Machining | ||
| Intro | With strict adherence to industry tolerances, our CNC machining services ensures consistent accuracy for all CNC machined parts, allowing each component to integrate perfectly. | ||
| General Tolerances‑Metals | ISO 2768‑m | ||
| General Tolerances‑Plastics | ISO 2768‑c | ||
| Precision Tolerances | Manufacture and inspect parts per drawing specifications & GD&T annotations, tolerances tighter than +/- 0.001 inches available | ||
| Min Wall Thickness | 0.5 mm | ||
| Min End Mill Size | 0.5 mm | ||
| Min Drill Size | 1 mm | ||
| Max Part Size‑CNC Milling | 4000 × 1500 × 600 mm | ||
| Max Part Size‑CNC Turning | 200 × 500 mm | ||
| Min Part Size‑CNC Milling | 5 × 5 × 5 mm | ||
| Min Part Size‑CNC Turning | 2 × 2 mm | ||
| Production Volume‑Prototyping | 1‑100 pcs | ||
| Production Volume‑Low volume | 101‑10,000 pcs | ||
| Production Volume‑High volume | Above 10,001 pcs | ||
| Lead Time | 5 business days for most projects. Simple parts can be as fast as 1 day. | ||
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 |
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Coating and Plating Options
Choose from a variety of coating and plating options for CNC machined parts.
Anodizing Type II
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 |
| Single‑setup Machining
Complete multi‑sided complex parts in one clamp, reduce re‑positioning errors and fixture costs. |
Unmatched Complex Geometry Capacity
Machine angled holes, deep cavities, undercuts and intricate curved profiles beyond 3‑axis limits. |
Superior Precision & Consistency
Minimize cumulative setup‑related errors, hold strict tolerances across batches of parts. |
Excellent Surface Finish
Optimal tool orientation reduces chatter; achieve fine surface quality with less post‑processing required. |
Faster Lead Time
Cut auxiliary time for repeated clamping and alignment, accelerate both prototype and batch delivery. |
Wide Material Compatibility
Process aluminum, stainless steel, titanium, copper and various engineering plastics. |
Professional Engineering Support
Full tool‑path simulation, collision check and DFM review for every project. |
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| functional prototypes
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jigs and fixtures
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production components in lower volumes
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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 (FAI) reporting, material certifications, and additional finishing options like anodizing, chromate plating, and powder coating. Additionally, our Protolabs 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.
Your success depends on reliable parts. Our CNC machining services provide precision machining with a 90% first-pass yield. You can get quality CNC machined parts for both prototypes and production runs.
At TRENDY, our in‑house facility is fully outfitted with state‑of‑the‑art manufacturing equipment. Our experienced engineering team operates 5‑axis CNC machining centers, injection molding machines, laser cutters, press brakes, welding stations and industrial‑grade 3D printers, among other high‑performance machinery. Automated production workflows guarantee consistent efficiency and precision across prototypes and volume‑batch orders.
All manufacturing processes are fully managed in‑house, enabling rigorous quality oversight at every production stage. Beyond competitive lead‑time flexibility and cost‑effective solutions with uncompromised quality, we stand out with local after‑sales support based in Europe. Direct end‑to‑end process control lowers project risks and delivers a more dependable supply‑chain experience for our global clients, especially European customers.
Trendy is a trusted provider of CNC turning services, serving customers across a wide range of industries. Equipped with advanced CNC turning capabilities and a team of seasoned engineers, we deliver reliable solutions covering rapid prototyping all the way to high‑volume, production‑grade CNC‑turned components.
Multi‑axis & 5‑axis CNC capability for both simple turned parts and complex 3D milled components.
Full in‑house inspection ensures tight tolerance, smooth surface finish and stable consistency.
Free DFM review and technical consultation to reduce machining risks and improve manufacturability.
Quick quotation, streamlined workflow, urgent prototype support and stable mass‑production supply.
Smart process planning to reduce unnecessary cost while maintaining high quality.
Integrated machining + surface finishing (anodizing, sandblasting, plating, etc.) for assembly‑ready parts.
Send us your drawings, sample photos or application details. We’ll help you evaluate the best material based on structure, process, finish, environment and target cost.
Large-format 3D printing is ideal for non-standard custom parts, prototypes, tooling, exhibition props, and repeated R&D testing.
One of the wrold’s leading one-top mould solutions providers and customized metal and plastic precision parts to production services
Copyright © 2026 Trendy Precision