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Injection Molding

Need to quickly test out the market with low-volume parts? Or want to create large quantities of production parts? Then you can’t go wrong with our injection molding services. At Leshine, we produce high-quality prototype moldings from aluminum molds with quick turnaround times. Our customers can test out their designs for manufacturability and functionality, fast. We also offer plastic injection molding for your high-volume production needs.

Whether you need rapid tooling, mass production mold making or end-use plastic molding with tight tolerances, our team of experienced specialists can offer a cost-effective solution at each stage.

Our Advantage of Injection Molding

There are huge numbers of injection molding providers. Why should you choose us as your injection molding supplier? Here are the top 3 reasons:

1. Experienced Engineers
Our molding engineers has rich experience after handling thousands of projects, whatever type of parts they come across, they can get the right parameters immediately.

2. Advance Facilities
By using imported and the top brand local made injection molding machines, we are able to make the most precise moldings as well as great aspect.

3. Unlimited Capacities
Asides from our in house facilities, we have built up the strong networks with our partners. Full ranges of injection machines from 10 tons to 1000 tons are ready for your orders without suspension.

Rapid Injection Molding

Our Molding Capabilities

At Leshine, our experienced team produces injection-molded products of the highest quality. We use injection molding in tandem with our rapid tooling capabilities, allowing us to create detailed custom parts quickly and efficiently.  Our injection molding technology allows us to use a wide range of materials and finishes to suit the needs of any industry or application.
 

Here are some of the options you can choose from:

Materials

  • Acetal polyoxymethylene (POM)
  • Nylon 66 (PA66)
  • High-density polyethylene (HDPE)
  • Polybutylene terephthalate (PBT)
  • Glass-filled polycarbonate (PC-GF)
  • Polyethylene terephthalate (PET)
  • Polyphenylene sulfide (PPS)
  • Polystyrene (PS)
  • Thermoplastic elastomer (TPE)
  • Acrylonitrile butadiene styrene (ABS)
  • Glass-filled, polyamide (PA-GF)
  • Low-density polyethylene (LDPE)
  • Polycarbonate (PC)
  • ABS polycarbonate (PC-ABS)
  • Polymethyl methacrylate (acrylic) (PMMA)
  • Polypropylene (PP)
  • Polystyrene + polyphenyl ethers (PS-PPE)
  • Thermoplastic vulcanizates (TPV)

Finishing Options

  • Polishing
  • Pad printing
  • Silk screening
  • Custom color painting
  • Laser finishing
  • Heat staking
  • Texture finishing

Common Applications

Injection molding is used to manufacture parts for a number of industries, including: 

Medical devices
  • Automotive
  • Aerospace
  • Electronic
  • Packaging
  • Food containers
  • Toys
  • Plastic prototypes

Our Injection Molding Process

At Leshine, we have a proven process for consistently delivering top-quality results for clients using injection molding technology.
 

First, we will go over your project and get to know what you aim to accomplish and the purpose of your part. We will listen to your insights and suggestions and offer our own advice based on our experience, as having a clear understanding of the possibilities is a crucial part of achieving the best results.
 

Then, we can begin the manufacturing process.
 

After we have selected the materials according to the required qualities, they will be mixed in a barrel where a reciprocating screw can melt the material and feed it into a split mold.
 

Then, the liquid material will be injected into a prototype mold cavity at high pressure, forcing it into all the cavities of the mold while it is still hot and only allowing it to solidify after it takes the shape of the mold.
 

If you’re happy with the results, the injection molding process makes it very easy to quickly produce industrial parts and components on a large scale. It’s also possible to manufacture products with multiple materials using our cutting-edge repeated injection methods.
 

The reason why so many companies decide to use injection molding is its effectiveness – the process wastes less material compared to other methods and allows to save time by reducing the number of steps that are necessary for production

Other Types of Injection Molding

Besides the basic injection molding services, we also offer two variants on the process - overmolding and insert molding. Both of these can be useful in specific situations.

Overmolding

Overmolding uses injection molding to create a part from multiple materials. This process adds an injection-molded layer of material over an existing injection-molded workpiece. The overmolding process produces chemically bonded parts made using multiple materials.
 

The overmolding method is often cheaper and more effective than other manufacturing approaches that require creating and assembling component material parts separately. The process can also be used to build layered parts from scratch or to add a resistant outer layer to existing plastic parts and tools, providing a more rugged exterior. Toothbrushes consisting of a solid plastic body and rubberized grip are a common example of an overmolded product.

Insert Molding

Insert molding is similar to overmolding, but the substrate is not necessarily plastic and does not have to be produced via injection molding. For example, insert molding can be used to add a plastic coating to a pre-fabricated metal part.

Common parts made by insert molding include sharp handheld tools, such as scalpels, which consist of a metal blade partially housed within a plastic handle. Insert molding is also frequently used to create products that incorporate bushings, clips, and fasteners.

Contact Us

TEL:+86-13823758702

E-mail:betty@leshine-rp.com

Add:308 Excellence Times Building,CentralRoad,ShaJing,
ShenZhen,China

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