Rapid Prototyping Services

CNC rapid tooling / 3D printing prototyping
Low Volume Manufacturing

plastic prototypes

Quality Rapid Prototyping Services

Rapid prototyping is the use of CNC machining and 3D printing technology to realize your design. Fast, accurate, lower cost and on-demand manufacturing are the advantages of rapid prototypes. Rapid prototyping is also commonly called quick prototyping or fast prototyping. At Sungplastic, we focus on producing high-quality customized products. With rich expertise and advanced equipment, we provide one-stop services from prototype manufacturing to injection molding mass production.

Whether it is plastic products or metal products, through diversified processing technologies and surface treatment methods, we will realize solutions for you from product prototypes to final products to the market.

Read on to learn more about the rapid prototyping and manufacturing process, or send your 3D design files to our international team of engineers for a free quote.

CNC Rapid Prototyping

CNC machining is very suitable for making high-quality rapid prototypes from plastic or metal. If your parts require tighter tolerances, lighter surface finish or higher hardness, CNC machining is the ideal choice. We have more than 20 CNC milling machines, lathes and EDM machines in-house to meet all your CNC needs.

After tooling the model, post-treatment processes such as spray painting, silk screen printing and electroplating can be carried out.

3 axis cnc service 5 axis cnc machining china

3D Printing Prototyping

SLA and SLS are rapid 3D printing or additive manufacturing processes. For prototypes with complex internal structures or low precision tolerances, they can be quickly realized through 3D laser printing technology.

3D printing and prototyping technology is widely used in product appearance and structure verification. SLA is ideal for making small batches of finished parts or prototypes.

3d printing prototype and sls sla fdm rapid prototyping service

Vacuum Casting

When low-precision plastic parts need to be produced in small batches, vacuum casting is an ideal rapid prototype machining technology. We use SLA printing technology or CNC machining to make master molds for vacuum casting molds.

Vacuum casting molds can create up to 30-50 high-fidelity copies. Parts can be molded with a variety of resins, including engineering grade plastics, and can even be over-moulded with a variety of materials.

Vacuum Casting Services

Various Materials of Fast Prototyping

Plastic, metal, and silicone can all be used to make prototypes. It is very important to choose the right material for your design.

plastic rapid Prototyping

Plastic Prototype

Plastic prototyping is mainly to make the prototypes of some plastic products, such as auto parts, phones, engineering, equipment, electronic products with plastic.

aluminum rapid Prototyping

Metal Prototype

Metal rapid prototyping is mainly to tool prototypes of some high-end products with metal materials such as aluminium-magnesium alloys.

Application Field of Rapid Prototyping Services

Plastic rapid prototyping is an important bridge between abstract concepts and tangible products, facilitating innovative and efficient product development. The plastic rapid prototyping process includes 3D printing, CNC prototyping and vacuum cast. Metal prototyping processes include CNC machining, 3D printing, and traditional machining processes.

Sungplastic has rich experience in plastic and metal prototype manufacturing, and can help you choose the right method for your prototype project, as well as the prototyping steps, materials and how to make a prototype.

Plastic Parts Prototypes

Plastic Parts Prototypes for Electronic Display

Low volume plastic prototypes manufacturing:

  • Electronic appliances: monitors, humidifiers, juice machines, vacuum cleaners, air conditioning panels.
  • Toy animation: cartoon characters, animation peripheral products, miniature car models, airplane models.
  • Medical beauty: equipment, beauty tools, nail tools, fitness equipment.
  • UnionPay security: cash register, cash machine, tax control machine, speedometer, 3G camera.
  • Car traffic: car lights, bumpers, seats, electric cars.
  • Craft jewelry: PMMA crafts, relief crafts, ornaments, antique appliances.

Aluminium alloy prototypes and sheet metal prototypes:

1. Cars, motorcycles, ships and other vehicles and various parts and components prototypes.
2. The metal parts of communication products such as telephones, fax machines, mobile phones, walkie-talkies, door locks, etc.
3. Hand-board models of household metal electrical appliances such as televisions, air conditioners, vacuum cleaners, washing machines, etc.
4. All kinds of hardware and metal mechanical parts.
5. Metal hand plates of various hardware casings for medical equipment, B-ultrasound machines, electronic instruments, and small and small parts of medical equipment.
6. Metal parts of aerospace and military aircrafts and UAVs.

Aluminum Alloy Product Prototypes

Aluminum Alloy Prototypes for Sport Product

Custom Rapid Prototypes Surface Finishes

After rapid prototypes are completed, most parts need surface finishes. The purpose of surface treatment is to meet the product’s corrosion resistance, wear resistance, decoration or other special functional requirements.

Common surface finish processes include grinding, polishing, electroplating, anodizing, blackening passivation, brushing, sandblasting, painting, powder spraying, printing (silk printing, pad printing), laser carving, and phosphating.

anodised aluminium


Anodizing is to improve the protective, decorative and functional properties of aluminum alloy:

  • Anti-corrosion and protect the outer surface.
  • Customized appearance colors: black, grey, red, blue, gold.
  • Texture: smooth, matte finish.
  • Effect:Increase surface hardness, wear resistance, electrical insulation, etc.
Electroplating metal


Electroplating can make the workpiece obtain decorative protection and a variety of functional surface layers, and can also repair wear and processing errors of the workpiece.

  • Material: aluminum, steel, plastic
  • Type: zinc plating, nickel plating, tin plating, etc.
  • Application: electrical connection, jewelry, radiation shielding
sandblasted aluminum


Sandblasting removes the surface processing traces of machined parts and gets a texture or matte texture surface. Bead Blasting is mainly used in vision applications to upgrade the product surface:

  • Materials:aluminum, brass, steel,plastic
  • Standards:Sa1, Sa2, Sa2.5, Sa3
metal Powder Coating service

Powder Coating

Powder coating is also called electrostatic powder spraying, a coating process that uses corona discharge to make powder coatings adhere to the workpiece.

  • Materials: aluminum, stainless steel, steel
  • Colors: black, any RAL code or Pantone number.
  • Applications:vehicle parts, household appliances, hardware tools
Polishing finish


Polishing refers to a processing method that reduces the surface roughness of the workpiece through physical methods to obtain a smooth surface or mirror gloss:

  • Material: aluminium, brass, stainless steel, steel
  • Types:mechanical polishing, chemical polishing
  • Application: lenses, accessories, high-end gifts
plastic spray painting services

spray painting

Spray paint improves the decoration of the product. The painted parts have a variety of colors. It improves the aesthetics of appearance and makes the product more high-end.

  • Colors: Pantone number, customized
  • Effect: colorful, UV coating, hand-feeling paint, etc.
  • Application: electronic products, consumer products, sports products, etc.

Why Choose Us for Rapid Prototyping Manufacturing?

Prototyping is one of the most important steps in the process of a product from idea to sale. To achieve this, you need to partner with a manufacturer you can count on to make your project go smoothly according to your schedule. This is why Sungplastic team is a great choice.

Industry-Leading Expertise

We have an experienced engineer team, sales team, production team, and quality management team to ensure that we maintain accurate and efficient processes with you in each process communication, reduce your risks and costs, and ultimately provide quality products and services. We can handle rapid prototyping services for global customers.

Cutting-Edge Equipment

In order to provide quality products and services, our team uses some of the best equipment available today. Every employee has undergone rigorous training and professional skills testing.

One-stop Solution

Support projects of any size. With 20 years of industry accumulation, we can formulate complete product development solutions and production plans for you, including fast prototyping, CNC processing, injection molding, die casting, stamping, sheet metal manufacturing, and assembly services etc. We are here to provide you with assistance in every part of the production process.

No Minimum Order Quantity

Procuring parts on-demand, we support your manage market or demand volatility by having no minimum order volumes or value for our injection molding production.

More Rapid Prototypes Manufactured at Sungplastic

Guide Of Rapid Prototyping

Usually, prototypes are required for products that have just been developed or designed. Prototyping is the first step to verify the feasibility of a product. It is the most direct and effective way to find out the defects, deficiencies, and shortcomings of the designed product, so as to make targeted improvements to the defects and provide sufficient basis for product finalization and mass production.

1.What is rapid prototyping?

Prototype refers to the verification sample manufactured in small quantities before the product is finalized. It can also be called: verification parts, equal-scale models, etc.
For products that require mold production, prototypes are one or more functional models made first based on product appearance drawings or structural drawings without opening the mold to check the rationality of the appearance or structure.

2.Types of prototypes

2.1 According to the production method, depending on the equipment used, it can be divided into 3D laser rapid prototyping prototypes and rapid CNC machining prototypes.

  • SLA prototypes: mainly prototypes produced by laser rapid prototyping technology.
  • CNC prototype: mainly produced by machining center.

2.2 According to the materials used in the production, the prototypes can be divided into plastic prototypes, silicone prototypes, and metal prototypes.

2.3 According to the desired effect, it can be divided into appearance prototype, structure prototype, and function prototype:

  • Appearance prototype: Mainly inspect the appearance design of the product, requiring exquisite appearance, accurate color, and low requirements for internal processing.
  • Structural prototype: Mainly check the structural rationality of the product, with high requirements for size and relatively low requirements for appearance.
  • Functional prototype: It is required to achieve the same appearance, structure and function as the real product. It can be understood as a finished product that is not on the market. It is the most demanding and difficult type of prototype.

3.Comparison of 3D printing prototype and CNC prototype

  • The advantages of 3D printing prototypes are mainly reflected in its speed, but it is mainly formed by stacking technology, so 3D printing prototypes are generally relatively rough.
  • The advantage of CNC prototype is that it can accurately reflect the information expressed in the drawings, and the surface quality of CNC prototype is high, especially after the surface spraying and silk printing are completed, it is even more glamorous than the product produced after the mold is opened.

Therefore, CNC prototype manufacturing has always been the mainstream of prototype manufacturing.

4.Materials used for rapid prototyping

  • Petal prototyping: ABS,POM, PMMA (acrylic), PC, PP, PA, BT, PVC, rubber sheet, bakelite, plastic king, etc.
  • Metal prototyping: Aluminum, stainless steel, iron, copper and other alloys

5.What are the advantages of a prototype?

  • Inspect the appearance design.
    The prototype is not only visible but also touchable. It can intuitively reflect the designer’s creativity in physical form, avoiding the disadvantage of “drawing it looks good but making it unsightly”. Therefore, prototype production is indispensable in the process of new product development and product shape scrutiny.
  • Inspection structure design.
    Because the prototype is assemblable, it can intuitively reflect the reasonableness of the structure and the ease of installation. It is convenient to find and solve problems early.
  • Avoid the risk of opening the mold directly.
    Because the cost of mold manufacturing is generally very high, relatively large molds are worth hundreds of thousands or even millions. If unreasonable structure or other problems are found in the process of opening the mold, the loss can be imagined. Prototype production can avoid this loss and reduce the risk of mold opening.
  • Make the product go to the market ahead of schedule.
    Due to the advanced nature of prototype production, you can use the prototype for product promotion before the mold is developed, and even pre-sales and production preparations to occupy the market as soon as possible.

Find More Capacities about Sungplastic

metal cnc machining prototyping

CNC Prototyping

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Injection Molding Prototyping

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Mass Production

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