High-Precision Online CNC Machining Services
Best Online CNC machining and fabrication service for rapid prototypes and production parts in metals or plastics. Get instant quotes today, and order your custom CNC machined parts at a better price.
- One-off CNC Prototypes
- 100K+ Mass Production Machining
- Tolerance as Tight as ±0.01 mm
- Delivery in as Little as 5 days



STEP STP SLDPRT IPT PRT SAT IGES IGS CATPART X_T OBJ STL files
Why Use Mekalite for Online CNC Machining Services?
Mekalite redefines custom part production with a fully digital platform and a global manufacturing network. Our services combine cutting-edge technology and expert support to meet diverse needs, from prototyping to mass production. Here’s why Mekalite stands out:
Key Benefits
Instant Quoting: Upload 3D CAD files to receive immediate pricing based on materials, complexity, and tolerances, aligned with ISO and GB/T standards.
Global Manufacturing Network: Partner with rigorously vetted machine shops worldwide for reliable production and supply chain efficiency.
Extensive Material Options: Choose from over 40 materials, including aluminum, stainless steel, titanium, and high-performance plastics like PEEK, Delrin, and polycarbonate.
High Precision and Complex Geometries: Deliver tight tolerances and intricate designs for industries like aerospace, medical devices, and robotics.
Rigorous Quality Control: Every part undergoes strict inspection with traceable reports, ensuring dimensional accuracy and surface quality.
Expert Engineering Support: Receive Design for Manufacturability (DFM) feedback to optimize designs and accelerate the transition from prototype to production.
9001:2015 Certified
CNC machines
Plastic & metal materials
CNC parts made monthly
What is CNC Machining?
CNC (Computer Numerical Control) machining is an advanced subtractive manufacturing process that uses automated, high-speed cutting, milling, and turning to create precise parts from metals and engineering plastics. Key features include:
Multi-Axis Machining: Utilize 3-axis, 4-axis, and 5-axis CNC machines, precision lathes, and specialized routers to achieve complex geometries and tight tolerances.
Accurate Programming: Experienced programmers translate CAD models into G-code, driving multi-axis machining centers for high dimensional accuracy and superior surface finishes.
Material Versatility: Process nearly any machinable metal (e.g., aluminum, stainless steel, titanium, nickel alloys) and high-strength polymers (e.g., PTFE, polycarbonate).
Broad Applications: Serve critical industries, including aerospace, medical devices, robotics, electronics, and precision engineering.
Mekalite streamlines CNC machining with rapid, on-demand services. Clients can select from a wide range of industrial metals and advanced materials, backed by comprehensive traceability and design optimization guidance, ensuring efficient project timelines.

Start Your Project Today
Mekalite delivers a seamless CNC machining experience. Upload your CAD file now to get an instant quote and experience exceptional service from design to delivery!
What are the advantages of Online CNC Machining Services?
Rapid Quotation and Easy Ordering
- Instant Quotes: In the old days, getting a quote involved back-and-forth with drawings and specs, sometimes taking days. Online platforms let you upload 3D models or drawings and get quotations within hours or even minutes.
- 24/7 Accessibility: There’s no need to wait for business hours. You can send requests and place orders any time, improving response times and project flexibility.
Optimized Resource Allocation & Lead Time Control
- Resource Pooling: Platforms integrate resources from various machine shops. If one shop is fully loaded, the order can be reallocated elsewhere, minimizing bottlenecks and balancing workloads.
- Order Tracking: You can monitor manufacturing progress in real time, making scheduling and communication more transparent.
Enhanced Quality Assurance and Process Standardization
- Unified Quality Standards: Reliable online services enforce standardized quality inspection processes—no matter which partner workshop physically produces the part. This consistency can be more reliable than some traditional “mom-and-pop” shops.
- Traceability: Every order, process, and inspection is logged and traceable. If there’s an issue, root cause analysis and accountability are much easier.
Reduced Communication and Management Overhead
- Streamlined Communication: Customers interact directly with engineering support, quoting specialists, and production coordinators through the platform. All files and communications are tracked, reducing errors from miscommunication.
- Automated Workflow Management: Scheduling, material requisition, and logistics can all be monitored automatically, making shop floor operations more efficient.
Access to Professional Technical Support
- Expert Guidance: Many platforms employ seasoned engineers who provide in-depth advice on manufacturability, material selection, cost optimization, and even DFM (Design for Manufacturability), going well beyond “manufacture as per drawing.”
- Process Simulation and Review: Advanced platforms provide CAM simulation and design reviews to preempt tool path or fixturing issues, reducing scrap and rework.
Lower Entry Barrier & Wider Customer Base
- No Need for In-house Capabilities: Startups and design-focused companies without their own shopfloor can still access world-class machining capacity without heavy fixed investment.
- Broader Reach: Geography is no longer a limitation—you can order parts from anywhere and serve clients globally, vastly expanding your market.
Data Security and IP Protection
- Robust Safeguards: Leading platforms use data encryption and sign NDAs as standard practice. Compared to traditional shops, where drawings can be carelessly shared, online services offer much better information security.

Custom CNC Machining Services: Machining, Turning, Milling, and Routing

Custom CNC Milling Services
Instant quotes on custom milled metal and plastic parts | Quick-turn prototypes and production parts in days | Free standard shipping on all US orders | International prototype pricing includes tariffs | ISO 9001:2015, ISO 13485, IATF 16949:2016, AS9100D certified. ITAR registered.

CNC Turning Service
Instant quotes on custom metal and plastic turned parts | Quick-turn prototypes and production parts in days | Free standard shipping on all US orders | International prototype pricing includes tariffs | ISO 9001:2015, ISO 13485, IATF 16949:2016, AS9100D certified. ITAR registered.

CNC Routing Services by Mekalite
Get quotes on custom parts with our Online CNC Routing Service. Make quick turn prototypes and production parts in days with free standard shipping on all US orders. ISO 9001:2015, ISO 13485, IATF 16949:2016, and AS9100D certified. ITAR registered.

High Volume CNC Machining Services by Mekalite
High Volume CNC Machined prototypes and production parts in days | AS9100D | ISO 9001:2015 | ISO 13485 | IATF 16949:2016 | ITAR Registered | Free standard shipping on all US orders
Feature | Description |
---|---|
Maximum Part Size | Milled parts up to 80” x 48” x 24” (2,032 x 1,219 x 610 mm). Lathe parts up to 62” (1,575 mm) length and 32” (813 mm) diameter. |
Standard Lead Time | 3 business days |
General Tolerances | Tolerances on metals will be held to +/- 0.005″ (+/- 0.127 mm) in accordance with ISO 2768 unless otherwise specified. Plastics and composites will be +/- 0.010”. |
Precision Tolerances | Mekalite can manufacture and inspect to tight tolerances, including sub +/- 0.001″ tolerances, per your drawing specifications and GD&T callouts. |
Minimum Feature Size | 0.020” (0.50 mm). This may vary depending on part geometry and chosen material. |
Threads and Tapped Holes | Mekalite can accommodate any standard thread size. We can also machine custom threads; these will require a manual quote review. |
Edge Condition | Sharp edges are broken and deburred by default |
Surface Finish | The standard finish is as-machined: 125 Ra or better. Additional finishing options can be specified when getting a quote. |
We are able to offer a precision machining service with a wide array of tolerances. The table below depicts the general tolerances for CNC machining:
CNC Machining Finishes
CNC Machining Aluminum Alloys
Aluminum 6061
Aluminum 5052
Aluminum 2024
Aluminum 6063
Aluminum 7050
Aluminum 7075
Aluminum MIC-6
CNC Machining Copper Alloys
Copper 101
Copper C110
CNC Machining Bronze Alloys
Copper C932
CNC Machining Brass Alloys
Copper 260
Copper 360
CNC Machining Stainless Steel Alloys
Nitronic 60 (218 SS)
Stainless Steel 15-5
Stainless Steel 17-4
Stainless Steel 18-8
Stainless Steel 303
Stainless Steel 316/316L
Stainless Steel 416
Stainless Steel 410
Stainless Steel 420
Stainless Steel 440C
CNC Machining Steel Alloys
Steel 1018
Steel 1215
Steel 4130
Steel 4140
Steel 4140PH
Steel 4340
A2 Tool Steel
O1 Tool Steel
CNC Machining Titanium Alloys
Titanium (Grade 2)
Titanium (Grade 5)
CNC Machining Zinc Alloys
Zinc Alloy
Plastic CNC Machining Materials
ABS
High-strength engineering plastic used for many commercial products.
Acrylic
A clear glass-like plastic. Good wear and tear properties. Great for outdoor use.
Delrin (Acetal)
Acetal
Delrin 150
Delrin 100
Garolite
Garolite G10 (FR4)
Garolite G10 (non-FR)
Garolite G11 (FR5)
Constructed of an epoxy resin with fiberglass fabric reinforcement, also called epoxy-grade industrial laminate and phenolic, this material offers high strength and low moisture absorption. Learn more about garolite G10 for CNC machining and phenolic machining.
HDPE
High-density polyethylene is a moisture and chemical-resistant plastic with good impact strength. The material is outstanding for outdoor applications as well as watertight containers or seals.
Nylon 6/6
Offers increased mechanical strength, rigidity, good stability under heat and/or chemical resistance.
PC (Polycarbonate)
With almost twice the tensile strength of ABS, polycarbonate has superior mechanical and structural properties. Used widely in automotive, aerospace, and other applications that require durability and stability.
PEEK
PEEK
PEEK (USP Class VI TECAPEEK)
PEEK GF30
Offering excellent tensile strength, PEEK is often used as a lightweight substitute for metal parts in high-temperature, high-stress applications. PEEK resists chemicals, wear, and moisture. Learn more about PEEK for CNC machining.
Polypropylene
Has excellent electrical properties and little or no moisture absorption. It carries light loads for a long period in widely varying temperatures. It can be machined into parts requiring chemical or corrosion resistance.
PTFE (Teflon)
This material surpasses most plastics when it comes to chemical resistance and performance in extreme temperatures. It resists most solvents and is an excellent electrical insulator.
UHMW PE
Ultra-high molecular weight polyethylene. A general-purpose material. It offers a unique combination of wear and corrosion resistance, low surface friction, high impact strength, high chemical resistance, and does not absorb moisture.
PVC
Polyvinyl chloride (Type 1) is a highly chemical-resistant synthetic plastic, PVC is commonly in environments exposed to liquids or requires electrical insulation.
ULTEM
ULTEM 1000
ULTEM 2300
ULTEM (Polyetherimide) is a stiff, robust, performance-grade thermoplastic that can operate continuously in high-temperature environments (up to 340°F). It has one of the highest dielectric strengths of commercially available thermoplastics, making it an excellent electric insulator. Since ULTEM is also resistant to chemicals, easily cleaned, and does not absorb moisture, it is often used for medical applications.




CNC Machining Finishes
Standard (As-Milled)
The finish option with the quickest turnaround. Machined parts are left with visible tool marks and potentially sharp edges and burrs, which can be removed upon request. CNC machining surface finish is comparable to 125 uin Ra finish.
Bead Blast
The part surface is left with a smooth, matte appearance.
Tumbled
This is a batch-based process that tumbles vibrating media to remove sharp edges and burrs on CNC parts. Tumbling can remove machine marks on exterior surfaces. Parts over 8” may require a manual review.
Anodized (Type II Or Type III)
Type II (MIL-A-8625, Type II) creates a corrosion-resistant finish. Parts can be anodized in different colors—clear, black, red, and gold are most common—and are usually associated with aluminum. Type III (MIL-A-8625/MIL-PRF-8625, Type III, Class 1/2 “hardcoat”) is thicker and creates a wear-resistant layer in addition to the corrosion resistance seen with Type II. See examples of our anodized finishes in our metal finishes gallery.
Titanium Anodize
A surface finish for titanium per AMS-2488 Type 2 specification. Also called Tiodize, this finish increases fatigue strength and the wear resistance of a part. Titanium anodized parts are common in aerospace and medical device manufacturing. Non-pigmented titanium anodize finishes will dull shine.
PTFE Impregnated Hard Anodize
A hard coat anodize process that embeds PTFE to create a self-lubricating, dry contact surface with Type 3 hard coat’s protective properties. This finish can be used on aluminum alloys or titanium and increases the service life of the product. This finish conforms to the AMS-2482 Type 1 Hard Coat Anodizing with Teflon (Non-Dyed).
Chem Film (Chromate Conversion Coating)
Provides corrosion resistance and good conductivity properties. Can be used as a base for paint. Can leave surface yellow/gold. Adds very little thickness, about 0.00001”-0.00004”. Chem film will conform to MIL-DTL-5541, TYPE I/II.
Passivation
Improves corrosion resistance for 200 and 300 series and precipitation hardened corrosion-resistant steels. Thickness is negligible, about 0.0000001”. Conforms to ASTM A967, AMS-QQ-P-35, MIL-STD-171, ASTM A380, or AMS 2700.
Powder Coat
This process is where powdered paint is sprayed onto a part and baked in an oven. This creates a strong, wear- and corrosion-resistant, more durable layer than standard painting methods. A wide variety of colors are available to create the desired aesthetic. See examples in our powder coating finishes gallery.
Electropolishing
An electrochemical process cleans steel parts to reduce corrosion and improve appearance, by making the metal brighter. Removes about 0.0001”-0.0025” of the metal. Conforms to ASTM B912-02.
Electroless Nickel Plating
Provides uniform nickel coating which offers protection from corrosion, oxidation, and wear on irregular surfaces. The finished part will be brighter. Thickness starts at .0001”. Conforms to MIL-C-26074.
Silver Plating
Silver offers high solderability and electrical conductivity but is susceptible to tarnish. Conforms to AMS QQ-S-365D. Thickness is about 0.00002” – 0.0003.”
Gold Plating
Gold Plating provides good corrosion and tarnish resistance with excellent solderability. Default application specification is MIL-G-45204 and ASTM B488, CLASS 00, 0, OR 1. Thickness is about 0.00002″ – 0.00005.”
Zinc Plating
Provides uniform zinc coating which offers protection from corrosion, oxidation, and wear on irregular surfaces. Conforms to ASTM B633-15.
Feature | Description |
---|---|
Internal corner fillets | Design internal corner fillets to be 0.020” – 0.050” greater than a standard drill size for the radii. Follow a drill diameter to depth ratio of 1:6 (1:4 recommended) as a guideline for internal corner radii. |
Floor fillets | Design floor fillets smaller than corner fillets to allow the same tool to clear material from the interior. |
Undercuts | Always design undercuts to standard sizes and away from corners so they are accessible by the cutting tool. |
Tapped/threaded hole depth | Provide tool clearance slightly beyond the tapped hole depth to ensure complete threads. |
Complexity | Keep the number of small cuts to a minimum to reduce the CNC machining service cost; only design in the necessary features to balance function with aesthetic. |
Get More Tips With Our Complete Design Guide
Online CNC Machining Service FAQs
How do I request an online CNC machining quote?
Simply upload your CAD files (STP, STEP, IGES, or other supported formats) to the online platform. Fill in the required details such as material, quantity, and any specific requirements. Within minutes or hours, you’ll receive a quotation and estimated lead time.
What file formats do you accept for quoting and manufacturing?
We accept commonly used engineering formats such as STEP (.step, .stp), IGES (.iges, .igs), and STL for 3D models. For drawings, PDF, DWG, and DXF files are also supported. If you’re unsure, contact us for guidance.
What materials are available for online CNC machining?
We provide a wide range of materials including:
- Metals: Aluminum, Stainless Steel, Brass, Copper, Titanium, etc.
- Plastics: ABS, POM (Delrin), Nylon, Polycarbonate, Acrylic, and more. If a special material is needed, please specify it during the quotation process.
Can I order prototyping and small batches, or do you have an MOQ?
No minimum order quantity (MOQ) is required. We support one-off prototypes, low-volume production, and high-volume manufacturing.
How is quality ensured for online CNC machined parts?
We implement strict quality inspection at every stage, from incoming raw materials to in-process control and final inspection. Detailed inspection reports and certificates are available on request.
How long does it take to receive my CNC machined parts?
Standard lead time is typically 5–10 business days depending on the geometry, quantity, and material. Expedited options are available for urgent projects.
How does shipping and delivery work?
We offer reliable global shipping via express couriers (e.g., DHL, FedEx, UPS). Delivery times typically range from 3–7 days depending on your location.
Can you provide surface finishing and post-processing services?
Yes, we offer a variety of finishing options such as anodizing, powder coating, polishing, sandblasting, and custom painting. Please specify your requirements when uploading your design.
Is my design and intellectual property safe with you?
Absolutely. We treat all client files with strict confidentiality and can provide non-disclosure agreements (NDAs) upon request. All data transmissions are encrypted.
What technical support do you offer?
Our experienced engineering team can provide design for manufacturability (DFM) feedback, material selection advice, and processing recommendations to help you optimize your part before manufacturing.
Can I track the progress of my order?
Yes, the online platform allows you to monitor your order’s production status in real-time, ensuring full transparency throughout the process.
What industries do you serve?
We provide CNC machining solutions for a wide range of industries including automotive, aerospace, medical devices, robotics, electronics, consumer products, and industrial equipment.