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On-demand Custom CNC Machining Services
Discover Sundi’s CNC machining services for both low and high-volume production, offering tailored solutions for plastic and metal parts with advanced 3-, 4-, and 5-axis centers. Deliver your CNC machined parts at more favorable factory prices.
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No Minimum Order
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24/7 operation
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Tolerances down to ±0.005mm
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Response within 8 hours
CNC Machining Services for Custom Parts
At sundi, we offer comprehensive CNC solutions for medical, aerospace, automotive, robotics and other industries, combining expert engineering with technology to produce high-quality custom parts.
As an ISO 9001 and ISO 13485 certified machine shop, we feature 3-, 4-, and 5-axis CNC milling, turning, EDM, and precision grinding. We welcome projects with no MOQ, ensuring CNC machined parts with tolerances as tight as ±0.005mm.
We machine 50+ materials, including titanium and inconel. We offer diverse surface finishes like anodizing, plating, and powder coating to enhance durability and aesthetics. We guarantee quality through rigorous in-house CMM inspections and full traceability documentation. Whether you are a startup, SME, or OEM, DEK is your reliable partner. Contact us today!
CNC Machining Capabilities
Sundi has a range of precision CNC machining sub-services. Our state-of-the-art equipment for CNC milling, turning, Swiss CNC turning, precision grinding, EDM machining, and gear machining ensures flawless execution of your most intricate projects.Discover Sundi’s CNC machining services for both low and high-volume production, offering tailored solutions for plastic and metal parts with advanced 3-, 4-, and 5-axis centers. Deliver your CNC machined parts at more favorable factory prices.
CNC Milling Service
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CNC Turning Service
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5-Axis CNC Machining Service
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CNC Grinding Service
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EDM & Wire-Cut Service
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CNC Drilling Services
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CNC aluminium machining Service
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Micro Machining Service
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Swiss CNC machining Service
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CNC Machining Materials
We offer a wide range of metal and plastic materials for CNC machining. If you don’t see the material you require, please contact us or view our full materials list.
Aluminum
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Brass
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Copper
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Steel
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Stainless Steel
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Bronze
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Titanium
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Magnesium
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Zinc
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Inconel
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Invar
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
ABS
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Acrylic
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Delrin
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
FR4
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
Nylon
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
PC
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
PE
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
PEEK
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
PEEK
At SUNDI, we specialize in machining all types of aluminum, including 6061, 7075, and 5083, and our precision services ensure high-quality parts for industries such as automotive and aerospace, perfect for spacecraft housings, radiators, engine casings, and more.
CNC Machining Finishes
A component’s true performance is dictated by its surface. Beyond mere aesthetics, precision surface finishes are critical engineering steps that define a part’s longevity, environmental resistance, and mechanical interaction. At Sundi, we offer a comprehensive suite of mechanical, chemical, and thermal treatments designed to minimize friction, seal against corrosion, and harden against severe wear. Explore our advanced finish options below to engineer parts that meet your most demanding functional specifications.
As Machined
Delivers a precision surface straight from our CNC centers. Retains visible tool marks while offering the most cost-effective solution for tight-tolerance functional components.
DLC Coating
Applies a high-hardness diamond-like carbon layer. Exceptionally reduces friction and wear, significantly extending the lifespan of precision parts operating in high-stress mechanical environments.
PVD Coating
Utilizes vacuum deposition to bond a thin, ultra-hard metallic layer. Enhances surface durability, oxidation resistance, and aesthetic appeal without compromising critical machining tolerances.
Heat Treatment
Precisely alters the metal's internal microstructure. Substantially increases overall hardness, tensile strength, and wear resistance for components enduring extreme load and continuous fatigue.
Anodizing
Creates a durable anodic oxide finish on aluminum parts. Delivers superior corrosion resistance, surface hardness, and allows for custom color dyeing for aesthetic applications.
Polishing
Removes microscopic surface imperfections to achieve a highly reflective, mirror-like finish. Minimizes surface friction and improves the sanitary properties of critical metal components.
Powder Coating
Applies a robust, thermoset polymer layer via electrostatic bonding. Provides outstanding resistance to impacts, chemicals, and UV degradation, offering diverse color and texture options.
Black Oxidize
A chemical conversion process for ferrous metals that adds a uniform dark aesthetic. Minimizes light reflection and provides mild corrosion resistance with proper oiling.
Brushed Finish
Applies a uniform, unidirectional satin grain pattern to the metal. Effectively masks minor surface scratches and handling marks while providing a premium industrial aesthetic.
Electroplating
Deposits a precise metallic coating onto the substrate via electrical current. Significantly improves surface conductivity, solderability, and prevents oxidation on critical internal contact points.
Sand Blasting
Propels abrasive media at high velocities to clean and texturize the substrate. Eliminates machining burrs and creates a consistent, matte surface ready for secondary coatings.
CNC Machining Tolerances
| Allowed Variations in Millimeters for Specified Ranges of Nominal Lengths | fine | medium | coarse | very coarse |
|---|---|---|---|---|
| 0.5 up to 3 | ±0.005 | ±0.1 | ±0.2 | - |
| over 3 up to 6 | ±0.005 | ±0.1 | ±0.3 | ±0.5 |
| over 6 up to 30 | ±0.01 | ±0.2 | ±0.5 | ±1.0 |
| over 30 up to 120 | ±0.015 | ±0.3 | ±0.8 | ±1.5 |
| over 120 up to 400 | ±0.2 | ±0.5 | ±1.2 | ±2.5 |
| over 400 up to 1000 | ±0.3 | ±0.8 | ±2.0 | ±4.0 |
| over 1000 up to 2000 | ±0.5 | ±1.2 | ±3.0 | ±6.0 |
| over 2000 up to 4000 | - | ±2.0 | ±4.0 | ±8.0 |
Production Capacity
We deliver complex, high-tolerance CNC machined parts tailored to your designs:
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Advanced Machining
Equipped with industry-leading machinery from Haas, Sodick, and Seibu.
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Advanced Inspection Equipment
Zero-defect delivery guaranteed by Zeiss Bridge CMM and Nikon Profile Projector inspections.
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Certifications
ISO 9001:2015 certified, ensuring strict adherence to international quality management standards.
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Transparent Process
Fully traceable and documented procedures from raw material to final inspection, ensuring complete quality control at every stage.
Why We Avoid Automated Online Quotes
Automated quote systems often lead to inaccurate pricing and cost overruns. They rely solely on basic cutting metrics, completely overlooking complex machining realities—such as material stress during heat treatment or the necessity of precision grinding to meet tight tolerances. At Sundi, your RFQ is reviewed by real manufacturing engineers, ensuring you receive a precise, realistic, and highly competitive quote based on actual manufacturability.
Our Ordering Process
We are a direct-to-factory manufacturer, not a brokered quote platform. Every component is engineered, machined, and inspected in-house at Sundi. This ensures complete control over technical precision, production lead times, and data security from your initial drawing to final delivery.
Send RFQ
Submit your 2D/3D CAD models and technical specifications via our secure online form or direct email.
Review & Quote
Our technical team evaluates your drawings for manufacturability and provides a detailed, data-driven quotation within 12 hours.
Confirm Order
Finalize technical parameters, confirm tolerances, and lock in the production schedule prior to contract sign-off.
Production
CAM programming is executed, and production begins across our specialized CNC, EDM, or stamping lines.
Quality Inspection
In-process dimensional checks and a comprehensive final inspection ensure all parts meet specified tolerances before leaving the floor.
Packaging & Shipping
Components are meticulously packed using dedicated protective materials to prevent transit damage and shipped globally.
CNC Machining FAQs
What CNC Machining Services Do You Offer?
“We specialize in a range of CNC services including milling, turning, drilling, and EDM. Our capabilities extend to complex geometries and precision parts.”
What Are Your Lead Times for CNC Machining Projects?
“Lead times vary based on complexity and volume. We strive for efficient turnaround while maintaining high-quality standards.”
How Do You Ensure Quality in CNC Machining?
“We follow strict quality control processes, including regular inspections and using precision measuring tools, to ensure every part meets your specifications.”
How Do You Handle Confidentiality and IP Protection?
your design is safe with us. We prioritize customer confidentiality and can sign a non-disclosure agreement (NDA) upon request to ensure your intellectual property remains secure throughout the production process.
Do You Offer Design Assistance for CNC Projects?
“Our team can assist with design optimization for CNC machining, ensuring your parts are manufacturable and meet your requirements.”
Start Your Project Now?
Send RFQ
Submit your 2D/3D CAD models and technical specifications via our secure online form or direct email.
Review & Quote
Our technical team evaluates your drawings for manufacturability and provides a detailed, data-driven quotation within 12 hours.
Confirm Order
Finalize technical parameters, confirm tolerances, and lock in the production schedule prior to contract sign-off.
Production
CAM programming is executed, and production begins across our specialized CNC, EDM, or stamping lines.
Quality Inspection
In-process dimensional checks and a comprehensive final inspection ensure all parts meet specified tolerances before leaving the floor.
Packaging & Shipping
Components are meticulously packed using dedicated protective materials to prevent transit damage and shipped globally.
CNC Machining Services for Custom Parts
Seeking a reliable, responsive OEM supplier for precision plastic and metal machined components? Sundi is your ideal ISO 9001:2015 certified manufacturer, whatever small volume or mass quantity, we will turn your idea into tangible, high-quality parts.
Our engineering team boasts extensive experience in CNC machining projects that require the fabrication of complex shapes and high-tolerance parts. Our production department is equipped with advanced machining equipment from renowned brands like Haas, Sodick, and Seibu, ensuring the consistent delivery of high-quality machined parts. Prior to shipment, our QC department employs precision tools such as Zeiss’s Bridge CMM and Nikon’s Profile Projector to guarantee that your CNC parts meet all specifications and are free from any defects. We possess the capability to fulfill your design and manufacturing needs, helping you transform your ideas into reality.
