Exploring the Top CNC Rapid Prototyping Manufacturers of 2021: A Comprehensive Guide

CNC (Computer Numerical Control) rapid prototyping is a cutting-edge technology that has revolutionized the manufacturing industry. It is a process that uses computer software to control and automate precision machining tools, such as lathes, mills, routers, and grinders, to convert raw materials into finished parts, products, or models quickly and accurately.

CNC rapid prototyping has several advantages over traditional manufacturing methods, including reduced lead times, cost savings, scalability, flexibility, complexity, customization, and quality control. It enables designers and engineers to create and test prototypes faster and more efficiently, iterate and modify designs on the fly, and achieve better accuracy, consistency, and repeatability.

If you're looking for a reliable and trustworthy CNC rapid prototyping manufacturer to help you bring your ideas to life, you're in luck. In this blog post, we will explore the top CNC rapid prototyping manufacturers of 2021 and what sets them apart in terms of technology, capabilities, expertise, quality, pricing, and customer service.

1. Proto Labs: Proto Labs is a global leader in CNC rapid prototyping and on-demand production services. It offers a wide range of materials, finishes, and processes, including CNC milling and turning, injection molding, 3D printing, and sheet metal fabrication. Proto Labs has a user-friendly online quoting system, fast turnaround times, and exceptional customer support.

2. Xometry: Xometry is a one-stop-shop for CNC rapid prototyping and manufacturing services. It has a diverse network of CNC machining partners around the world, which allows it to offer a vast selection of materials, geometries, and specifications. Xometry also provides instant quoting, design for manufacturability analysis, and engineering support.

3. Fictiv: Fictiv is a cloud-based platform that connects customers with vetted CNC rapid prototyping and production partners. It offers high-quality parts, fast turnaround times, competitive prices, and transparent tracking and communication. Fictiv also has a dedicated team of experts who can help you optimize your designs and processes for CNC rapid prototyping.

4. RapidDirect: RapidDirect is a leading CNC rapid prototyping and low-volume manufacturing company in China. It has a state-of-the-art facility, advanced equipment, and skilled technicians who can deliver precision parts and components to your exact specifications. RapidDirect also offers a range of value-added services, such as assembly, surface treatment, and packaging.

5. WayKen Rapid: WayKen Rapid is a professional CNC rapid prototyping and precision machining company in China. It specializes in complex and high-precision projects, such as aerospace, medical, and automotive parts. WayKen Rapid has a team of experienced engineers, quality control experts, and customer service representatives who can assist you at every step of the CNC rapid prototyping process.

In conclusion, CNC rapid prototyping is a game-changer for the manufacturing industry, and these five manufacturers are at the forefront of this cutting-edge technology. They offer innovative solutions, superior quality, and exceptional customer service that can help you turn your ideas into reality. So, whether you're a startup entrepreneur, a product designer, or a mechanical engineer, consider working with one of these top CNC rapid prototyping manufacturers and experience the future of making things.

cnc rapid prototyping manufacturers

On-demand Rapid Injection Molding

Sigma’s rapid tooling service helps you to have the low volume to large volume plastic parts done, with no compromise on the material selection.

  • No MOQ required
  • Get the rapid tooling as fast as 2 weeks
  • Free DFM
  • 24/7 engineering support

Our rapid injection molding Application

Sigma Technik Limited's rapid injection molding service injects molten plastic materials into molds using injection molding machines and molds, and cools and solidifies them over a certain period of time, ultimately forming the required plastic parts. This manufacturing process is usually suitable for producing small and medium-sized plastic parts, which can obtain high-quality and precise parts in a short period of time.

Plastic Injection Molding

Injection molding is a common manufacturing process to produce low volume to large volumes of parts typically made out of plastic. The process involves injecting molten material into a mold and letting it cool to a solid-state.

Liquid Silicone Rubber Molding

Liquid Silicone Rubber is known as LSR, which is a process used to produce parts made from silicone rubber, widely used create products such as medical devices, automotive parts, baby care products, and many others.

2K Injection molding

2K injection molding is a manufacturing process in which two different types of plastic materials are molded together in a single operation to create a single homogeneous component. This process allows for efficient and cost-effective production of high-quality parts that can perform unique functions.

Overmolding and Insert Molding

Overmolding / Insert molding combines two or more materials into a single part, one of the material is usually soft and flexible, or metal. The purpose of overmolding/insert molding is to add functionality, improve grip, provide protection, or enhance aesthetics.

Mission And Vision

Rapid injection molding materials


ABS is a type of plastic with high strength, hardness, and toughness. It has good impact resistance and wear resistance, and is suitable for manufacturing shells, components, and models.


PC is a transparent, high-strength, high-temperature resistant, and excellent electrical insulation material. It is suitable for manufacturing transparent components, electronic components, and automotive components.


PP is a relatively flexible material with excellent corrosion resistance and high temperature resistance. It is suitable for manufacturing containers, pipelines, baby bottles, etc.


PA is a material with high strength, high rigidity, and wear resistance. It is suitable for manufacturing gears, bearings, brackets, etc.


POM is a material with excellent wear resistance, toughness, and rigidity. It is suitable for manufacturing gears, bearings, pulleys, etc.


Delicated Employees


Countries Served


Satisfied Customers


Projects Delivered Per Month

About Us

What can we do?

Sigma Technik Limited, as a prototype production company and rapid manufacturer focusing on rapid prototyping and low volume production of plastic and metal parts, has advanced manufacturing technology, one-stop service, diversified manufacturing methods, on-demand manufacturing services and efficient manufacturing processes, which can provide customers with high-quality, efficient and customized product manufacturing services and help customers improve product quality and market competitiveness.


Rapid Injection Molding Service Application

Let’s start a great partnership journey!

Rapid Injection Molding FAQs

Burrs appear on the surface of the product, which affects its aesthetics and safety. The solution can be to adjust the parameters of the injection molding machine, such as temperature, pressure, speed, etc., or to perform post-processing, such as polishing, sandblasting, etc.

The warping deformation of the product is usually caused by unstable parameters such as temperature and pressure of the injection molding machine, or improper mold design. The solution can be to adjust parameters such as temperature and pressure, or to redesign the mold.

The occurrence of bubbles inside the product may be due to the high temperature of the injection molding machine and the high moisture content of the material. The solution can be to reduce the temperature of the injection molding machine, adjust the water content of the material, increase the pressure of the injection molding machine, etc.

The product size deviation is too large, which may be caused by material thermal expansion, mold deformation and other reasons. The solution can be to adjust parameters and optimize mold design based on material characteristics.