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CNC Machining Parts
Sundi MFG manufactures custom CNC machining parts for precision machinery, automation equipment, mold components, and industrial applications.
We produce parts based on your drawings, material requirements, tolerances, and surface finish needs. From prototypes to small and medium batch production, our CNC machining service helps you get accurate, reliable, and ready-to-use components.
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Custom CNC machined parts made according to your 2D / 3D drawings and technical specifications.
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Support for aluminum, stainless steel, carbon steel, tool steel, brass, copper, and engineering plastics.
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CNC milling, CNC turning, drilling, tapping, grinding, and surface finishing support for complex parts.
- Quote in 8h
- 7-15 Days Lead Time
- STEP / DXF / IGES Accepted
- Strictly Confidential (NDA Supported)
Common CNC Machining Parts Problems We Help Solve
For custom CNC machining parts, many problems do not come from machining alone. They may come from unclear drawings, unsuitable material selection, poor tolerance control, surface finish issues, or weak communication before production.
Sundi MFG helps customers turn drawings into accurate, stable, and ready-to-use machined components through proper process planning, material review, precision machining, inspection, and surface finishing support.
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Dimensional Inaccuracy and Poor Fit
Custom machined parts often fail because of tolerance deviation, hole position errors, poor flatness, or mismatched assembly dimensions. These issues can lead to rework, assembly failure, and project delays.
- We review your 2D / 3D drawings, check key tolerances, machining references, hole positions, and assembly requirements before production to help reduce dimensional errors.
02
Surface Finish and Appearance Issues
Scratches, tool marks, burrs, sharp edges, oxidation, or uneven surface treatment can affect both part function and appearance, especially for aluminum parts, visible components, and assembled products.
- We support CNC milling, turning, deburring, polishing, anodizing, black oxide, plating, and other finishing options based on the material, application, and surface requirements.
03
Wrong Material or Machining Process
Choosing the wrong material or process can increase cost, reduce strength, cause deformation, or make the part difficult to machine. This is common when drawings are incomplete or only samples are available.
- We help review material options such as aluminum, stainless steel, carbon steel, tool steel, brass, copper, and engineering plastics, then suggest a practical machining process for cost, accuracy, and function.
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Unstable Quality in Repeat Orders
For repeat CNC machining orders, small changes in machining setup, inspection method, or surface treatment can cause inconsistent quality between batches.
- We keep production records, key dimensions, inspection standards, and finishing requirements for repeat parts, helping customers maintain more stable quality from prototype to batch production.
CNC Machining Parts by Manufacturing Process
Different custom parts require different machining processes. We manufacture CNC machined parts based on your drawings, material, tolerance, surface finish, quantity, and application requirements.
Whether your project needs turned parts, milled parts, EDM parts, or a combination of multiple processes, our team can help review the drawing and choose a practical manufacturing solution for accuracy, cost, and delivery time.
- Strictly Confidential (NDA Supported)
CNC Turned Parts
CNC turned parts are commonly used for round, threaded, stepped, and shaft-type components that require stable diameter control and good concentricity.
We produce custom turned parts such as shafts, sleeves, pins, bushings, threaded parts, spacers, and precision connectors for machinery, automation equipment, fixtures, and industrial assemblies.
CNC Milled Parts
CNC milled parts are suitable for complex shapes, flat surfaces, slots, pockets, holes, and mounting features that require accurate machining from solid material.
We manufacture custom milled components from aluminum, stainless steel, carbon steel, tool steel, brass, copper, and engineering plastics, supporting prototypes, replacement parts, and small to medium batch production.
EDM Machined Parts
EDM machining is used for hard materials, sharp internal corners, narrow slots, complex profiles, and features that are difficult to finish by conventional cutting.
We provide wire EDM and EDM support for precision inserts, mold components, fixture parts, punches, dies, and custom machined parts that require fine details and tight dimensional control.
CNC Machining Parts by Material
Different materials require different machining strategies, cutting tools, tolerances, and surface finishing methods.
Sundi MFG manufactures custom CNC machining parts from metals and engineering plastics, based on your drawings, material specifications, application requirements, and production volume.
Whether you need lightweight aluminum parts, corrosion-resistant stainless steel parts, copper components, or high-performance plastic parts, we help choose a practical machining process for accuracy, function, and cost control.
Aluminum Parts
Sundi MFG machines aluminum parts from common grades such as 6061, 6063, 7075, 5052, and 5083 for automation equipment, aerospace components, automotive parts, electronic housings, fixtures, and precision mechanical assemblies.
Brass Parts
We manufacture custom brass parts such as fittings, bushings, connectors, threaded components, valve parts, inserts, and small mechanical parts that require clean edges and smooth surface finishes.
Copper Parts
Sundi MFG produces custom copper CNC parts for electrical connectors, heat transfer parts, terminals, electrodes, busbar components, and precision industrial applications.
Steel Parts
We machine carbon steel and alloy steel parts for machinery components, shafts, mounting blocks, brackets, fixtures, tooling parts, and custom industrial parts that require reliable mechanical performance.
Stainless Steel Parts
We support CNC machining for stainless steel grades such as 304, 316, 420, 440C, and 17-4PH, commonly used in medical equipment, food machinery, marine parts, automation systems, and precision assemblies.
Bronze Parts
We manufacture bronze bushings, sleeves, wear plates, guide parts, bearing components, and custom machined parts used in machinery, molds, and industrial equipment.
Titanium Parts
Sundi MFG supports custom titanium CNC machining for aerospace parts, medical components, high-strength fasteners, precision brackets, and special industrial applications.
Magnesium Parts
We machine magnesium parts for lightweight housings, structural components, electronic parts, and custom applications that require low weight and good machinability.
Zinc Parts
We provide CNC machining support for zinc alloy parts, including housings, small mechanical components, brackets, fittings, and prototype parts.
Inconel Parts
Sundi MFG supports Inconel machining for aerospace, energy, chemical processing, and high-temperature industrial components.
Invar Parts
We manufacture custom Invar parts for measuring equipment, optical systems, aerospace fixtures, precision instruments, and temperature-sensitive assemblies.
ABS Parts
Sundi MFG machines custom ABS parts for electronic enclosures, automotive interior parts, equipment covers, fixtures, and low-volume production components.
Acrylic (PMMA) Parts
We manufacture custom acrylic parts such as display panels, protective covers, transparent windows, light guide parts, and visual inspection components.
Delrin (POM) Parts
We machine POM parts such as gears, rollers, bushings, spacers, guide blocks, sliding parts, and precision plastic components for automation and machinery.
FR4 Parts
Sundi MFG machines FR4 parts for insulating plates, electrical fixtures, PCB support components, spacers, and custom parts used in electronic and industrial equipment.
Nylon(PA) Parts
We produce nylon rollers, bushings, guide rails, wear pads, spacers, and custom machined parts for machinery, conveyor systems, and automation equipment.
PC Parts
We machine PC parts such as protective covers, transparent panels, equipment guards, optical components, and industrial safety parts.
PE Parts
Sundi MFG manufactures PE parts such as guide rails, sliding plates, liners, wear strips, rollers, and custom components for packaging, food machinery, and industrial equipment.
PEEK Parts
We manufacture custom PEEK parts for medical equipment, aerospace components, semiconductor tooling, electrical insulation parts, and high-performance industrial applications.
PEI Parts
Sundi MFG machines PEI parts for electronic components, insulation parts, medical devices, aerospace applications, and precision mechanical assemblies.
PET Parts
We produce PET parts such as rollers, guide components, spacers, bushings, and custom parts used in automation equipment and industrial machinery.
PP Parts
We machine PP parts for chemical equipment, fluid handling components, laboratory fixtures, covers, tanks, and custom industrial plastic parts.
PTFE Parts
Sundi MFG manufactures PTFE seals, washers, sleeves, insulation parts, guide components, and custom parts used in chemical, electrical, and low-friction applications.
PVC Parts
We machine PVC parts such as plates, covers, brackets, pipe-related components, electrical insulation parts, and custom components for industrial and chemical applications.
Need Custom CNC Machining Parts for Your Project?
Send us your 2D / 3D drawing, material grade, tolerance requirement, or sample details.
Sundi MFG will review your machining needs and provide a practical solution for CNC milling, turning, EDM, and surface finishing.
Manufacturing Capabilities for Custom CNC Machining Parts
We use CNC milling, CNC turning, EDM, wire cutting, grinding, and surface finishing processes to manufacture custom CNC machining parts from your drawings.
These processes help us control part dimensions, holes, threads, profiles, surface finish, flatness, and assembly features for metal and plastic components used in machinery, automation, molds, fixtures, and industrial equipment.
Wire EDM & Die-sinking EDM
For narrow slots, sharp corners, complex profiles, and high-precision part features.
Precision Grinding & Precision Finishing
For tight tolerances, smooth surfaces, flatness, and stable dimensional accuracy.
CNC Machining
For milled parts, holes, pockets, threads, contours, and precision machined surfaces.
Our Equipment List
CNC machining, EDM, grinding, inspection, and finishing equipment for custom parts.
Quality Control for Custom CNC Machining Parts
Sundi MFG controls the quality of custom CNC machining parts from drawing review to final inspection.
Before production, we review your drawings, key dimensions, tolerances, material requirements, surface finish, threads, holes, and assembly features. During machining, we check critical dimensions step by step to reduce fitting problems, rework, and batch quality differences.
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Drawing review before production to confirm key tolerances, datum references, threads, holes, and surface finish requirements.
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First article inspection and in-process checks for critical dimensions and assembly-related features.
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Final inspection for dimensions, appearance, burrs, surface finish, threads, and machining quality before shipment.
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Inspection reports can be provided according to your drawing and project requirements.
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Inspection reports can be provided based on your project requirements.
Why We Provide Engineer-Reviewed Quotes
Custom CNC machining parts require more than a quick price check. Material, tolerance, surface finish, structure, quantity, and machining process all affect the final cost and delivery time.
Before quotation, our team reviews your drawing to check machining feasibility, key dimensions, material options, surface treatment, and possible production risks.
So you receive a more accurate price, a realistic lead time, and a practical machining plan for your CNC parts.
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.
Case Presentation
FAQs
How long does Sundi MFG need to deliver custom CNC machining parts?
The typical lead time for custom CNC machining parts is 7–15 days after the drawing, material, tolerance, quantity, and surface finish requirements are confirmed.
For complex parts, tight tolerance parts, special materials, or parts requiring surface treatment, the lead time may be longer.
Can Sundi MFG support small-batch CNC machining orders?
Yes. We support prototypes, replacement parts, and small to medium batch production.
For custom CNC machined parts, small-batch production is often suitable when customers need testing, assembly verification, or urgent replacement components before mass production.
What materials can you machine?
We can machine a wide range of metals and engineering plastics, including aluminum, stainless steel, carbon steel, tool steel, brass, copper, titanium, POM, ABS, PEEK, PTFE, Nylon, PC, and other plastic materials.
If you are not sure which material is suitable, you can send us your drawing or application details for review.
What drawing files do you accept for CNC machining quotes?
We accept common 2D and 3D drawing formats, including PDF, DWG, DXF, STEP, STP, IGES, and IGS.
To prepare an accurate quote, it is helpful to provide the material grade, quantity, tolerance requirements, surface finish, and any special inspection needs.
Can you provide surface treatment for CNC machined parts?
Yes. We can support surface treatments such as anodizing, black oxide, plating, polishing, passivation, heat treatment, and other finishing processes according to the material and application.
The final surface treatment option depends on the part material, function, appearance requirement, and working environment.
Can you provide inspection reports for CNC machined parts?
Yes. Inspection reports can be provided based on your project requirements.
We can check key dimensions, holes, threads, tolerances, surface finish, appearance, burrs, and assembly-related features before shipment.
Can you manufacture parts only from samples without drawings?
Yes, in some cases we can manufacture parts from samples or photos, but drawings are strongly recommended for accurate production.
If only samples are available, we can help review the structure, measure key dimensions, and discuss whether reverse engineering or drawing creation is needed.
How do I get a quote for custom CNC machining parts?
You can send us your 2D / 3D drawing, material requirement, quantity, tolerance, and surface finish needs.
Our team will review the drawing and provide an engineer-reviewed quote with a practical machining plan and lead time.
