Upload your CAD files and get instant quotes for high-precision CNC prototypes and low-volume production parts. Verify the feasibility of product design,Whether you need prototype validation or small-batch production, our flexible CNC capacity ensures precision and consistency. such as material verification, appearance, structure, and function, promote rapid mass production of products, and quickly bring products to market.
3-axis / 5-axis / turning-milling center
1200 × 600 × 400 mm
±0.01 mm
Over 100 types of metals & plastics
Anodizing, polishing, painting, sandblasting, etc.
1–5 days depending on complexity
LKprototype provides professional CNC machining services for custom metal and plastic parts, supporting both rapid prototyping and low-to-high volume production. Our extensive CNC production network across China ensures every part meets tight tolerances and consistent quality — from prototype to volume production, always on time. Certified by ISO 9001 standards, we ensure each machined part meets your exact specifications and global delivery requirements.
LKprototype offers high-precision 3-axis, 4-axis, and 5-axis CNC milling for complex geometries and tight-tolerance components. From aluminum and stainless steel to ABS and PEEK, our advanced equipment ensures outstanding surface finish and dimensional accuracy. Ideal for mold components, mechanical housings, and functional prototypes.
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Our CNC turning capabilities allow us to produce precision cylindrical parts such as shafts, connectors, and threaded components. Equipped with multi-axis turning centers and live tooling, LKprototype delivers both simple and intricate turned parts in metal and plastic materials. Fast lead times and consistent quality for every batch.
Learn More about CNC Turning →We work with a wide range of engineering materials to meet functional, mechanical, and appearance requirements.
Acrylonitrile Butadiene Styrene (ABS) is a cost-effective thermoplastic that has gained popularity for use in pre-injection molding prototypes. This material is recognized for its versatility, strength, durability, and resistance to both impact and heat. ABS plastic is extensively utilized in the automotive and consumer electronics sectors, owing to its superior mechanical characteristics and straightforward processing capabilities. Furthermore, it can be readily modified with various additives to improve specific attributes, including flame retardancy and UV resistance.
Mill Lead Time：As quick as 3 days
Colors：Black, with a neutral matte finish.
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*For materials not shown here, please contact us directly
PEEK, or polyether ether ketone, is a thermoplastic extensively utilized across various sectors, including aerospace, automotive, and electronics. This material is characterized by its exceptional strength, stiffness, toughness, chemical resistance, biocompatibility, and thermal stability. These properties make PEEK an ideal choice for demanding environments where other materials might not perform adequately. Typical applications encompass aircraft structures, high-temperature electronic components, and medical and dental devices, including implants.
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*For materials not shown here, please contact us directly
Polyphenylene Sulfide (PPS) is a thermoplastic known for its outstanding chemical resistance, thermal stability, and ability to withstand high temperatures. It also offers excellent dimensional stability and electrical insulation properties. Typical applications of PPS include automotive parts, electrical connectors, and various industrial equipment, such as fuel systems, turbine blades, brake pads, bearings, gears, switches, and engine components. Components made from PPS maintain their durability and reliability even under challenging environmental conditions.
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PVC (Polyvinyl chloride) is a highly durable and versatile plastic known for its exceptional resistance to chemicals, UV radiation, and corrosion. It is widely used in various applications, including pipes, fittings, electrical enclosures, tubing, automotive interiors, and components for commercial buildings. Additionally, PVC is lightweight, cost-effective, and boasts a long service life.
Tolerance：With drawing: as low as +/- 0.005 mm
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High-density polyethylene (HDPE) is a highly adaptable thermoplastic recognized for its strength, resistance to chemicals, ability to withstand impacts, structural robustness, and minimal moisture absorption. This material is frequently utilized in various sectors, including packaging, construction, and automotive manufacturing. Additional uses encompass plugs and seals, and it serves as an outstanding electrical insulator.
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PTFE (polytetrafluoroethylene, commonly known as Teflon™) exhibits low friction and nonstick characteristics, along with outstanding resistance to chemicals and high temperatures, as well as effective electrical insulation. This material is frequently employed in applications that require low friction, including bearings, seals, gaskets, and washers. Additionally, it is suitable for components that necessitate insulating capabilities.
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Aluminum alloys (such as 6061, 7075): Aluminum is light, durable, and easy to process, making it ideal for lightweight parts. It is widely used in mass production of prototypes and parts in aerospace, automotive, and consumer electronics.
Prototype production：
Learn more about Aluminum alloys 6061 and 7075 Materials
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CNC surface treatment processing enhances the appearance, durability, and performance of machined parts. After precision CNC machining, various finishing methods—such as anodizing, polishing, sandblasting, plating, or painting—are applied to improve corrosion resistance, wear resistance, and surface smoothness. These treatments not only provide protection but also ensure parts meet functional and aesthetic requirements across industries like automotive, aerospace, and electronics.
As-machined: Maintains the original color and texture after machining, minimizing costs.
Anodizing: Suitable for aluminum, enhances corrosion resistance and can be dyed.
Polishing: Creates a smooth, shiny metal surface, enhancing its appearance.
Sand Blasting: Creates a uniform matte texture and improves blemish coverage.
Brushed Finish: Creates a fine, uniform brushed finish, concealing minor scratches.
Powder coating/powder spraying: A thick, wear-resistant coating available in a variety of colors.
Electroplating: Coating a metal layer such as copper, nickel, or chromium onto a substrate to improve wear resistance and oxidation resistance.
Black Oxidize: Suitable for steel, offers some rust protection.
Electropolishing: Chemically smooths the surface and reduces microcracks.
Chromizing/Chromate Conversion Coating: Enhances aluminum surface corrosion resistance and improves coating adhesion.
Tumbling: Suitable for small batches, creating a slightly textured but consistent surface.
Our CNC machines operate with precision tolerances that meet industry standards, ensuring that every part is consistently accurate and fits perfectly with other components.
| Classification | Metals, PEEK, And ULTEM with Drawing |
Other Plastics with Drawing |
No Drawing |
| Linear Dimension | +/- 0.0025 mm +/- 0.0001 inch |
+/- 0.05 mm +/- 0.002 inch |
ISO 2768 Medium |
| Hole Diameters (Not Reamed) |
+/- 0.0025 mm +/- 0.0001 inch |
+/- 0.05 mm +/- 0.002 inch |
ISO 2768 Medium |
| Shaft Diameters | +/- 0.0025 mm +/- 0.0001 inch |
+/- 0.05 mm +/- 0.002 inch |
ISO 2768 Medium |
Simply upload your CAD files in STEP, IGES, STL, or PDF format. Our engineers will personally review your design and respond with timely, helpful feedback.
Work with our experts to choose the most suitable materials and manufacturing processes, ensuring your components meet every design and performance requirement.
Upload your design files and select materials, and we'll provide a detailed quote within 24 hours.
Please review the quotation and confirm your order. Our team will start production immediately upon confirmation.
We craft each part to match your precise specifications and ship it to your chosen address as scheduled.
We value your opinion! After receiving your order, please consider sharing your thoughts about our service — your feedback helps us build better experiences.
At LK Prototype, we turn your ideas into precision parts — quickly, accurately, and reliably.
Our streamlined production process allows us to deliver high-quality parts in just days — right when you need them.
Every part goes through strict inspections to ensure consistent quality and reliable performance.
From CNC machining and vacuum casting to injection molding and 3D printing, we offer everything you need under one roof.
We build every part to your exact specifications, delivering tight tolerances and smooth finishes that bring your designs to life.
Our experienced engineers work closely with you, offering guidance from design review through to final production.
We keep your designs secure and never share them — NDAs are available, and all staff are banned from bringing digital devices into the factory.
We deliver fast, high-precision manufacturing solutions for diverse industries — from automotive and medical to consumer electronics and industrial equipment.
In practice, we have found that our customers often care about the following issues. Please select the relevant issues according to your project.
Answer: The processing cycle of CNC prototypes depends on the complexity of the design and the selected materials. Simple designs may be completed in 1-3 days, while complex prototypes may take 5-7 days or longer.
Answer: CNC prototypes are generally superior to 3D printing in terms of accuracy and material selection. CNC machining can process a variety of materials such as metals and plastics, and has a high surface quality, which is more suitable for functional testing and final product production.
CNC Prototyping plays a crucial role in minimizing overall production expenses by tackling design and manufacturing challenges upfront. Here’s how:
Early Identification of Flaws: By creating a prototype, potential issues in the design and production processes are identified before they escalate. This allows for quick adjustments, ensuring that costly mistakes don't make their way into mass production.
Efficiency in Iterations: Instead of undergoing a complete production run to test a design, CNC Prototyping allows for iterative testing and refinement. This process saves significant expenditure associated with large-scale changes once production has begun.
Material and Process Optimization: Through CNC Prototyping, businesses can experiment with various materials and methods to determine the most cost-effective options without committing substantial resources. This experimentation leads to optimized production processes, minimizing waste and reducing costs.
Risk Mitigation: By simulating real-world usage and conditions during CNC Prototyping, unforeseen issues can be addressed, reducing the likelihood of expensive recalls or product failures after launch.
Incorporating CNC Prototyping into the development phase can lead to strategic cost-saving opportunities, ensuring a smoother transition from concept to market-ready product.
Answer: Dimensional accuracy is guaranteed by precise CNC equipment, strict control of processing parameters, and post-testing. Using high-quality tools and cutters is also very critical.
Answer: Common materials include aluminum, copper, stainless steel, ABS plastic and nylon. These materials are widely used due to their excellent mechanical properties, processing and surface treatment effects.
Answer: Yes, CNC prototyping is very suitable for small batch production, especially when you need to quickly verify the design or market testing. Its flexibility and precision make it an ideal choice.
Answer: CNC machining can handle very complex geometries, especially when using 5-axis CNC machines. However, some extremely complex designs may require special fixtures or step-by-step processing.
Answer: Common surface treatments include sandblasting, anodizing, electroplating, and polishing. These treatments can improve corrosion resistance, hardness, or achieve specific aesthetic effects.
Answer: CNC prototypes are widely used in many industries such as automotive, aerospace, medical devices, consumer electronics, industrial equipment, etc., and are particularly suitable for application scenarios that require high precision and functional verification.
Answer: When selecting a supplier, you should consider its equipment capabilities, technical experience, delivery cycle, quality control system, and customer feedback. It is also important to understand whether it can meet specific design and material requirements.LKprototype What Are the Advantages of In-House Machining and Fabrication Capabilities?
LKprototype In-house machining and fabrication capabilities offer a range of advantages that set companies apart from those who outsource these services:
Speed and Efficiency: By handling machining and fabrication tasks internally, companies can significantly reduce lead times. This efficiency means projects move from concept to completion much faster than if third-party services were involved.
Enhanced Quality Control: With every step of the process taking place under one roof, there's a greater ability to monitor and maintain quality standards. This control minimizes errors and ensures that each product meets high-performance criteria.
Cost-Effectiveness: Internal capabilities eliminate the need for outside contractors, reducing overall project costs. Savings can then be passed on to customers, making the service more competitive in the market.
Flexibility with Prototyping: Quick adjustments can be made during the prototyping phase, allowing for rapid iterations and improvements. This agility is crucial for meeting client specifications and adapting to changes swiftly.
Confidentiality and Intellectual Property Protection: Conducting all operations internally reduces the risk of intellectual property theft or leaks, keeping your designs and innovations secure.
By integrating these capabilities in-house, companies enhance their overall operational effectiveness, delivering superior products with greater speed and reliability.
Prototyping stands as a vital step in the journey of product development due to its multifaceted benefits. At its core, prototyping involves crafting an initial model of a product. This foundational step allows teams to explore and test various aspects, such as functionality and design, before scaling up to full production.
Benefits of Prototyping:
Spotting Design Flaws Early: By experimenting with a prototype, potential issues in both design and functionality can be identified before mass production begins. This proactive approach helps avoid costly revisions down the line.
Enhancing Product Performance: Iterative testing of a prototype ensures that design tweaks and enhancements can be made efficiently, ultimately leading to a product that performs well under real-world conditions.
Cost Efficiency: Early-stage adjustments save significant time and resources. By catching issues upfront, companies can sidestep expensive production missteps, optimizing their investment.
Meeting Customer Expectations: Prototypes offer a tangible way to gauge whether a product will align with consumer needs and quality benchmarks, thus ensuring higher customer satisfaction upon release.
In sum, prototyping is indispensable, allowing teams to refine and perfect a product, elevating it to meet both industry standards and consumer demands effectively.
Explore our latest articles to learn more about precision CNC Machining, material selection, and cost optimization.
Modern factories rely on tools that operate quickly and precisely, and a 4-axis CNC machine is a game-changer in this regard. By incorporating rotation into the standard three axes, a 4-axis CNC machine enables intricate work, making it ideal for crafting parts with complex shapes. This added capability enhances accuracy, saves time, and effortlessly manages advanced designs. The adoption of 4-axis CNC machines is on the rise, with approximately 60% of businesses utilizing CNC tools. The 4-axis CNC market is projected to grow significantly, increasing from $3.2 billion in 2024 to $5.8 billion by 2033. This rapid growth highlights how…
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