Injection Molding Services

We are leading provider of advanced overmolding, insert-molding and injection molding service China that specialize in offering quality injection molded parts with affordable price to a wide range of industries.
  • Free DFM Feedback and Quote
  • No Minimum Order Quantity
  • Rapid Design Molds within 7 Days
  • Samples as Fast as Two Weeks
  • Tolerances down to +-0.003mm
  • ISO 9001:2015, CE:SHBST100665461231
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Different Types of Plastic Manufacturing & Prototyping

Junying (CNCLATHING) is one of the best mold makers in China, offering plastic parts manufacturing and prototyping solutions for almost every industry. Based on your needs, we can provide 3D printing, CNC machining, and injection molding services for prototypes, and low to high-volume production runs. Take a quick view of the comparison between different processes.

Prototyping (3D Printing) Prototyping (CNC Machining) Composite Mold CNC Machined Tool Steel Mold
Min. quantity 1 1 1 10,000
Typical cost $20-$150 per part $100-$500 per part $30-$200 per part $2000 - $10000 per part
Lead time 2-5 days 5-10days 2-5 days 25 - 35 days

Plastic Mold Design

When designing a plastic mold, some factors should be taken to reduce the cost and complexity of parts.

Design Rules

Undercuts:

reduce as many undercuts as possible, including external and internal undercuts, as well as side-action directions. A trick for removing the need for additional slides is creating a pass-thru core.

Wall Thickness:

maintain an even wall thickness to prevent wall sink, thinner walls can reduce cycle time and cost.

Drafts:

the standard draft angle is about 1° to 2°. parts can be designed with a minimum draft angle of 0.5°, or up to 5°.

Rapid Design Molds

The mold in plastic injection molding is a hollow metal block into which molten plastic is injected to form a fixed shape. Many holes are drilled on the mold for temperature control through hot water, oil, or heater. The molten plastic flows into the mold through the gate and fills the cavity through the runner and gate. Then the mold is opened after the cooling process, and the ejector rod of the injection molding machine pushes the top plate of the mold to further eject the mold.

Rapid molds are ideal solutions for part design validation, rapid prototyping, low volume production, and bridge production quantities. If you are looking for a reliable company for small-batch runs of injection molded parts, Junying is providing rapid molds for making inexpensive plastic parts efficiently.

No minimum order quantities
Complex designs accepted
Steel tooling is available
Instant free quote for your parts
Low cost and fast turnaround

How to Make Injection Mold

Injection mold is a tool used for producing plastic parts by the injection molding process, it gives the molded components complete structure and precise dimensions. How to make or manufacture injection mold?

1) Analysis of plastic parts

Before the mold design, the designer should fully analyze whether the plastic products conform to the injection molding processing principle. It includes necessary discussion on the geometric shape, dimensional accuracy, and appearance requirements of the products to avoid unnecessary complexity in mold manufacturing.

2) Mold design

A set of high-quality molds not only needs good equipment and skilled mold-making workers but also a very important factor is good mold design. An excellent mold design has the advantage of low production cost, proper difficulty, and short cycle time and meets the requirements of customers. The design specifies where liquid plastic will enter and flow within the mold's cavity.

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3) Determine mold material and select standard parts

In the selection of mold materials, in addition to considering the accuracy and quality of products, the correct selection should be made in combination with the actual processing and heat treatment capabilities of the plastic mold manufacturer. In addition, in order to shorten the manufacturing cycle, existing standard parts should be used as much as possible.

4) Mold making and assembly

In addition to giving the best structure and reasonable tolerance during the design, the accuracy of the mold is very important for manufacturing and assembly. Therefore, the choice of machining accuracy and machining method plays an absolutely dominant role in mold manufacturing. Using milling, drilling, and turning, a rough shape will be sculpted out of a solid bar of steel or aluminum during the initial machining phase. Subsequently, the final shape will be created through precision machining.

5) Mold trial

For the error caused by the inconsistency between the predetermined shrinkage and the actual shrinkage, whether the demoulding is smooth or not, how the cooling effect is, especially the influence of the size, position, and shape of the gate on the accuracy and appearance of the product, it must be tested through the mold test.

Injection Molding Processes - Types of Injection Molding

From sketch to functional parts, our injection molding services can help you get the final products through multiple molding methods based on applications, materials, sizes, and more factors.
Custom plastic injection molding

A plastic manufacturing process using polymers or plastic resins after being heated, melted and injected under high pressure into an injection mold to obtain molded parts with the desired shape.

Liquid Silicone Rubber Molding

The injection molding of liquid silicon rubber (LSR) to manufacture pliable and durable parts, the process involves mixing together a two-component compound, then heat-cure it in the mold with a platinum catalyst. LSR parts can endure severe temperatures, making them perfect for engine components.

Overmolding

A type of injection molding that consists of multiple steps and is used to form one component made of plastic over the top of another component. A substrate is typically an injection-molded object made of plastic, although it might potentially be made from a wide variety of other materials.

Insert Molding

The process of molding or creating plastic components around other, non-plastic components, sometimes known as inserts, is referred to as insert injection molding. While the inserted component is often a straightforward object, inserts themselves can be somewhat complicated.

What is Injection Molding?

Injection molding (moulding) is the most commonly used manufacturing process for manufacturing plastic parts. It refers to the method that under a certain temperature, the plastic material completely melted by screw stirring is injected into the mold cavity with high pressure, and then cooled and solidified to obtain the injection molded product. This method is really cost-effective and it’s suitable for the mass production of complex shape parts. Molding also has the highest variety of materials, colors, and configurations when compared to CNC machining or even 3D printing. Beyond materials, injection molded parts can have custom cosmetics, polishes, or surface textures. There are mainly six steps in the plastic injection molding process, including clamping, injection, dwelling (molding), cooling, mold opening, and product removal, As shown on the right.

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Injection Molding Materials

When selecting the materials for the injection molding process, there are a ton of options including thermoplastics, thermosets, metals, and elastomers. At Junying, a wide selection of more than 100 thermoplastics and polymers are available, we’ll help you choose the optimal material based on the part and application.
Thermoplastics Other names Properties Applications
ABS Acrylonitrile Butadiene Styrene, Cycolac, Magnum, Novodur, Terluran High rigidity, impact resistance, insulating properties, abrasion and strain resistance Computer housings, toys, appliances, musical instruments, automobile interior trims, wheel covers
PC Polycarbonate, Calibre, Lexan, Makrolon High clarity, impact resistance, dimensional stability Mechanical parts, consumer products, automotive headlights & panels, safety helmets, containers
HDPE High Density Polyethylene, Eraclene, Hostalen, Stamylan Flexible, translucent, weatherproof, good low temperature toughness Houseware items, electronic wire/cable insulators, chair seats, housings, covers
LDPE Low Density Polyethylene, Alkathene, Escorene, Novex Low temperature flexibility, toughness, and corrosion resistance Consumer products, electronic wire insulators, medical parts
PA6 Polyamide 6, Nylon 6, Akulon, Ultramid, Grilon Excellent chemical resistance, abrasion resistance, lowest modulus, low creep, low friction Gears, bearings, electronic connectors, auto parts, industrial components
PA66 Polyamide 66, Nylon 66, Kopa, Zytel, Radilon Excellent chemical resistance, fatigue resistance, almost opaque/white Handles, levers, small housings, zip ties
PBT Polybutylene terephthalate Harsh chemical resistance, low moisture uptake, fire performance, mechanical strength Bearings, gears, surgical instrumentation, manifolds, medical implants
PEEK Polyetheretherketone Harsh chemical resistance, low moisture uptake, fire performance, mechanical strength Bearings, gears, surgical instrumentation, manifolds, medical implants
PEI Polyetherimid High strength, heat and chemical resistance, biocompatible Aircraft interiors, healthcare products, electronic parts, cooking utensils
PET Polyester UV resistance, lightweight, dimensional stability, stiffness Electrical connectors, insulation, consumables and food packaging
PMMA Polymethyl methacrylate, Acrylic Excellent optical clarity, sunlight resistance, good impact resistance Automotive transparent products, household light fixtures, safety equipment
PPA Polyphthalamide Heat and chemical resistance, excellent impact strength, relatively low moisture Automotive applications, housings for high temperature electrical connectors
PP Polypropylene, polypropene, Novolen, Appryl, Escorene Slippery surface, resistant to moisture absorption, heat, chemical, scratch resistance Closures, food trays, caps, toys, handles, housings, bottles, automotive applications
PS Polystyrene Lightweight, resistant to moisture and bacterial growth, insulation Food processing and storage, packing, pulleys, adapters
PSU Polysulfone High operating temperature, good resistance to hydrolysis, toughness Medical and dental parts, surgical instruments, electrical parts
TPU Thermoplastic urethanes Elasticity, transparency, resistance to oil, grease and abrasion Wheels, gears, hose, gaskets, tubing, footwear
POM Polyoxymethylene, Celcon, Acetal, Delrin, Hostaform, Lucel High toughness, impact strength, low moisture absorption Small gear wheels, ball bearings, fasteners, lock systems
Thermosets Properties Applications
Standard silicone Resistance to bacteria, UV light, Ozone, and harmful radiation, light transmittance, glarity Economical production of large series of injection molded articles
Medical-grade silicone Autoclavable, high gas permeability, fast cure, good colorability, low viscosity, good processability Medical devices, healthcare industry
Optical-grade silicone Impact, chemical, UV and temperature resistances Alternative to glass in lighting applications, particularly in bulbs
Fluorosilicone Resists high temperatures, good elasticity at low Temperatures, excellent resistance against automotive fuels and oils Solvent and chemically resistant molded parts, gaskets and membranes for demanding static and dynamic sealing, thin high-precision coatings

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Injection Molding Finishes

What injection mold finish is ideal for your part? We have a variety of surface finishing services for your injection molded parts.
Standard Finish
SPI Finishes
Mold Texturing
Other Textures - VDI
As Molded
Threaded Inserts
Pad Printing
Laser Engraving
Assembly

Secondary Operations

Laser Engraving

the process of utilizing a laser to etch a picture or logo onto a piece of material of your choice.

Heat Staking

the process of selectively heating a plastic component in order to reconstruct it and insert another component, such as a threaded insert.Pad printing is when an ink-based, two-dimensional design is applied to a three-dimensional surface.

Painting

adds colored coatings to molded parts, including coatings for top and bottom, standard colors or Pantone colors, and more.

Ultrasonic Plastic Welding

joining or reforming of thermoplastics employing heat generated by high-frequency mechanical motion. It is performed by transforming high-frequency electrical energy into high-frequency mechanical motion.

Injection Molding Applications

Fabricators use injection molding services to provide affordable and economic plastic products for various industries and fields. Junying is a professional injection molding company that produces typical parts like housings, gears, brackets, and custom plastic injection molded parts for broad uses.

Injection Molding FAQs
1. How much does injection molding cost and how to reduce the cost?

The injection molding process can make low-cost plastic products with a price of $1-5 per unit at high volume, which ranges from 1,000 to 100,000+, but its start-up cost is higher than lots of other technologies. The actual cost of your custom injection molded parts will be affected by the material type, equipment, and more.

To reduce the injection molding cost, here are some tips:

- Reduce risk and quality cost

- Improve efficiency through automation

- Reduce waste

- Shorten cycle time

- Manufacturing more efficient molds

- Reduce mold transfer cost

2. What is the maximum part size for injection molding?

Most standard injection molding machines allow a maximum part size of 4' x 4'.

3. What are common injection molding defects?

Injection molding defects may be caused by the resins, processes, and molds.

- Flow lines or flow marks

- Wrapping

- Burn marks

- Vacuum voids

- Sink marks

- Weld lines

- Jetting

- Discolouration

- Surface delamination

- Short shot

- Flash

- Silver streaking

4. What are your tolerances for molded parts?

Generally, the tolerance can be as low as +/- 0.003 in. (0.08mm), with a resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm).

5. What is the difference between forming and molding

Molding or moulding is a manufacturing process that involves shaping a raw material that is either liquid or pliable by employing a rigid frame known as a mold or matrix. It's possible that this was constructed using a pattern or a model of the thing that would ultimately be created.

Forming is the process of changing the shape of a product that is only partially finished, such as sheet metal, by the use of plastic deformation. The process of shaping a piece of sheet metal involves applying force to the item in order to modify its shape rather than removing any material.

Both molding and forming shape the material while not removing any of it, but molding is done using a mold, and forming is completed through suitable stresses such as compression, shear, and tension.

Injection Molding vs Compression Molding: What Are the Differences

Compression molding is a manufacturing technology in which the preheated material is put into an open and heated mold cavity, then the mold is closed and pressure is applied to ensure the material contacts all areas within the mold. Maintain heat and pressure until the material cures. The compression molding process can be used to manufacture various materials, including plastics (thermosets & thermoplastics), rubber (nitrile, SBR, silicone, etc.), and composites. If you are deciding the better one to choose from injection molding and compression molding, here are the differences between them.

1. Working Principle: In injection molding, the material is heated and injected into a closed mold cavity under pressure. In compression molding, a pre-measured amount of material is placed in the mold, then close and heat the mold using pressure.

2. Tooling Cost: Generally, the compression molding has lower tooling costs compared to injection molding, because its mold design is simpler.

3. Cycle Time: Injection molding would have shorter cycle times than compression molding, it is more ideal for high production volumes in terms of lead time.

4. Part Design: The injection molding supports more complex geometries and detailed designs, while compression molding is suitable for larger components with simpler designs.

5. Part Tolerances: Compression molding offers good dimensional accuracy but can’t match the part tolerances achievable in injection molding.

6. Surface Finish: Both of them can achieve smooth finishes, but the advantage of injection molding is it can include various textures without increasing much complexity.

7. Mold Design: The structure of compression mold is simpler, it typically features a stationary core and a movable cavity, and injection mold has a movable core and a stationary cavity.

8. Mold Material: Injection molds often made from hard materials through advanced manufacturing techniques like EDM, while the compression molds often made from softer steels with less complex processes.

9. Ejection Mechanism: Injection molding requires ejector pins and sometimes additional mechanisms for undercuts, while compression molding does not require complex ejector mechanisms.

10. Material Compatibility: Injection molding is mainly used to process thermoplastics, compression molding is suitable to process thermosetting polymers, and some elastomers

11. Processing Equipment: Compression molding use relatively simple presses, manual loading and operation is common during the process. Injection molding often involves automated machines with programmable features and sophisticated controls.

12. Post Processing: Compression molding often requires manual trimming because of the flash, and the post processing of injection molding is less necessary.

13. Production Volume: Injection molding is usually applied for high-volume production runes across various industries, and compression molding is probably better for lower volume needs.

What Is Two Shot Molding?

Two-shot molding, also known as multi-shot, dual-shot, and double-shot molding, is an advanced injection molding process that combines two different plastic resins in a single machining cycle to create multi-material or multi-colored parts without additional assembly steps. The process works in two phases: first, a substrate is formed by injecting the initial resin into a mold cavity, which then cools and solidifies before being transferred, either manually, via robotic arms, or more efficiently via a rotary plane, to a second mold chamber where a second resin is injected, bonding molecularly with the substrate to form a durable, integrated component. This method is widely used in industries such as automotive (interior parts), medical (surgical devices), consumer goods (soft-grip buttons or kitchenware), and more. Two-shot injection molding offers strong material bonding

What Is the Difference Between Two-Shot Molding and Overmolding?

Two-shot molding and overmolding are two different types of injection molding processes. The double-shot molding needs more complex equipment to contain two plastics in the same mold and finish the production in one cycle time, but overmolding is often completed with standard injection molding machines and a secondary process. In addition, in two-shot molding (double injection molding), the material bonding should be stronger chemically, so higher material compatibility is needed. And two-shot molding is cost-effective for a large number of parts to be manufactured, and overmolding is probably better for prototypes.

Insert Molding vs Overmolding, What are the Differences, Which is Better For Your Project?

Overmolding and insert molding are similar injection molding processes, but there are significant differences:

Differences in processing methods

Insert molding - one-time molding: Pre formed parts and metal parts are set in a mold and combined with injected resin. Fix parts through physical bonding and adhesion. Embedded molding is a processing method that injects another material (such as resin) into different types of materials such as metal and plastic to shape them. It has the characteristics of improving durability, strength, and electrical performance, and is easy to apply to industrial products.

Overmolding - two-step molding or two-color molding: The first step is to form the substrate, and in the second process, the material is injected onto the substrate to form an integrated structure. The fixation depends on the adhesion between the substrate and the encapsulation material Encapsulation molding is a processing method that injects different materials into the substrate formed in the first process to form a whole, suitable for applications that improve design and functionality.

Differences in substrate shape and size

Insert Molding - The substrate is a pre prepared part or component that is placed in a mold and bonded with resin. Physical fixation is the main connection method

Overmolding - The first step is substrate molding, where the substrate and new layer are chemically fixed to improve strength and design.

Differences in Forming speed

Insert molding - one-step operation, faster speed

Overmolding - slow speed due to hardening and secondary processing

Differences in Material selection

Insert Molding - focus on insertion compatibility

Overmolding - requires compatible substrates and encapsulation molding materials

Differences in Cost

Insert Molding - mass production is more cost-effective

Overmolding - additional steps will increase costs

Differences in Applications

Suitable conditions for Insert Molding - using prefabricated substrates. The board is made of metal or metal wire, or a computerized component. Manufacturing finished products as individual items is very suitable for the integration of metal and ceramic components.

Suitable conditions for overmolding - molded parts are made of thermoplastic resin and/or rubber. This design utilizes multiple layers, multiple materials (as described above), and/or multiple colors. We produce the substrate and second layer ourselves without the need to remove or disassemble the finished product, which is very suitable for soft touch or adding an extra layer of protection

Insert Molding vs Overmolding, Which One To Choose For Your Project?

Although the processing methods of the two technologies are similar, the processes and fields in which their characteristics are exerted are different. Therefore, it is necessary to choose the most suitable processing method based on the required performance and requirements of the product. Here are some suggestions based on our years of manufacturing experience to help you make a reasonable choice. In addition, you can always contact us to obtain more professional solutions that meet your actual needs from our technical specialists:

Electrical industry projects

Most projects completed for the electrical industry use insert molding (known as rubber exteriors) to produce safer wires for customers. In addition to wires, we also produce computer and mobile phone chargers. When producing multiple wires, insert molding is very helpful, as these wires are divided into different colors (blue and red).

Automotive Industry Projects

The most common automotive products that use insert molding are fasteners, gears, and electronic sensors, which combine metal and rubber materials together for safer use. Motors and batteries are also using insert molding technology. Meanwhile, when manufacturing dual tone interior components such as knobs, controls, instrument panels, and doors, overmolding is used.

Consumer goods project

Your child's plastic toys, storage boxes, plastic containers in the kitchen, plastic furniture, and every plastic item you see at home are made of sturdy components that are overmolded to make the product durable, safe, and long-lasting. However, other consumer goods are made using overmolding or insert molding processes, such as phone cases and toothbrushes, as well as navigation devices.

Beauty industry projects

Both overmolding and insert molding are used in beauty industry projects, such as cosmetic packaging, to make products more attractive to customers. By using both simultaneously, it is easier to customize colors and textures for products such as cologne bottles and makeup brushes.

Medical industry projects

For products that require sterilization, the medical industry relies entirely on secondary molding because it is clear that plastic is easier to sterilize than metal and other components. Meanwhile, medical wires and cables used in hospitals, defibrillators, pacemakers, etc. are made of insert molding to achieve cleaner, easier, and more fragile internal quality.

Tooling & Mold Making Service Online – Best Injection Molding Manufacturer Company In China

CNCLATHING is one of the best mold makers in China, offering molding solutions for every industry, including medical injection molding, electrical injection molding, automotive injection molding and more. In order to meet our clients’ large demand for plastic parts, we cooperate with reliable partners to offer injection molding services, which can make up for your one-stop requirements for plastic prototype and mass production. Our main services offering include insert-molding, overmolding & two color injection molding, as well as with CNC machining. With more than 10 years of experience, we are able to produce custom affordable injection molding parts plastic, insert molding parts and overmolding parts according to customers’ specifications, drawings or samples. We own advanced techniques, highly skilled staff that employ superior tooling and high pressure injection molding processes to ensure that the mold parts are of the cheapest price and highest quality. Whether you need rapid tooling, mass production mold making with tight tolerances, our team of experienced specialists can offer a cost-effective solution at each stage. Contact our expert team and get a price for your tooling/mold making service, we will quote you a plastic injection mold price in 24 hours!

Why Choose Our Injection Mold Making Services

There are huge numbers of mold making companies. Why should you choose us as your tooling & injection molding supplier? Here are the reasons:

  • Production Capability: We offer high production capacity and competitive prices for injection molding services.

  • Extensive Experience: With nearly 20 years of expertise in manufacturing, we have established a strong reputation in the industry.

  • Customer Service: Our exceptional customer service and effective communication ensure quick responses.

  • Diverse Solutions: We provide various plastic injection mold designs, including 3D printed, insert, overmold, two-color molds, and more.

  • Precision Manufacturing: We manufacture precision injection molded parts according to your specifications or samples.

  • Timely Delivery: Our injection molding services ensure timely completion, supporting your R&D projects efficiently.

  • Fast Turnaround: Our automated quoting and design analysis enable us to ship injection molding orders as fast as several days.

  • Advanced Technology: We utilize advanced equipment and high-quality materials to create precise injection molds and molded parts.

  • Expert Team: Our experienced engineers and tooling partners will confirm quality inspection and testing during manufacturing.

  • Collaborative Solutions: We collaborate with partners to address plastic part demands for both prototyping and mass production.

Capabilities Of Injection Molding Service At Junying

1.Custom Insert Molding

CNCLATHING also offers insert molding as part of its injection molding capabilities that works especially well for parts that have threaded holes. With our custom insert molding service, you can make parts all at once instead of having to do assembly after the fact. And insert molding service will help you reduce costs, lower the size and weight for the part, and improve reliability. Insert molding materials including ABS, PPS, PS, PSU, PEEL, Liquid Silicone Rubber, Polypropylene, Polycarbonate, PMMA, PEI, PPA, LCP, etc.

How does insert molding work?

It uses a preformed part that is loaded into a mold where it is then overmolded with a thermoplastic resin to create a final component. When the run is complete, parts are boxed and shipped shortly thereafter.

Benefits of Using Custom Insert Molding Services:

As a leading CNC machining service provider in the industry, JunYing provides customers with high-precision and high-quality CNC machining+insert molding services with advanced technology equipment and rich experience. Whether it's complex product design or precise machining requirements, we can help customers efficiently achieve their product manufacturing goals through precise machining techniques and flexible production solutions. Here are the product advantages you can gain by using our insert molding services:

  • The combination of plastic and metal fully utilizes the ease of molding and elasticity of plastic, as well as the rigidity, strength, and heat resistance of metal, thus enabling the production of complex and sophisticated metal plastic integrated products. This not only reduces the size and weight of the product, but also improves its performance.

  • The combination of plastic insulation and metal conductivity enables products to meet the basic functional requirements of electrical products. At the same time, it can also meet certain special requirements, such as magnetic conductivity, wear resistance, and fastening properties.

  • Adding metal inserts to plastic can significantly improve its strength and enhance its durability.

  • The embedded injection molding technology brings greater flexibility to product design, making it possible to combine plastic with metal and other parts, thereby enriching the diversity of product design.

  • By insert injection molding, secondary processes such as hot melt, welding, and riveting can be eliminated, assembly time can be shortened, and production costs can be reduced.

  • The application scope of insert injection molding is wide, not limited to metal, but also includes various materials such as cloth, paper, wire, plastic, glass, wood, etc. This makes the technology widely applicable in multiple fields.

  • For rigid molded products and curved elastic molded products on rubber sealing pads, an integrated product made by injection molding on the substrate simplifies the automated combination process of the subsequent processes.

  • Compared with the press in molding method, the combination of molten plastic and metal inserts is tighter, and the gap between metal inserts can be designed to be narrower, thereby improving the reliability of the product and making it easier to pass vibration and other tests.

  • By selecting appropriate plastics and molding conditions, even products that are prone to deformation and damage (such as glass, coils, electrical components, etc.) can be sealed and fixed with plastics to ensure product integrity and durability.

  • The appropriate mold construction allows the embedded product to be completely sealed inside the plastic, further enhancing the overall integrity and aesthetics of the product.

  • The combination of vertical injection molding machines, robotic arms, and embedded product assembly devices enables automated production of embedded molding engineering, improving production efficiency and quality.

Advantages of our insert molding service:

  • Durability: Metal inserts will guarantee the function of threads and mitigate wear and tear over the part’s life.
  • Strength: Because it’s a “one-shot” process, insert molding can produce stronger parts than overmolding and other processes.
  • Creating production parts: Insert molding is great for creating prototypes and production parts.

2.Overmolding Service

Overmolding is a multi-step injection molding process where two or more components are molded over top of one another. It’s sometimes referred to as two-shot molding because it is a two-step process. Using overmolding service allows us manufacture products with multiple materials and/or colors relatively simply and can be used for a range of applications including medical, automotive, military and more. Junying has the expertise to make sure your overmolding project is a success. Work with us to create the ideal solution for your exact needs. No matter what the specifications of your project, we will meet the expectations of your next overmolding project!