Insert Molding

Insert Molding Services

Access top-notch plastic injection molding services for your custom prototypes and production parts. Get injection molded parts with impeccable quality, excellent finishes, and high dimensional stability at competitive prices.

  • No MOQ
  • Tight Tolerance of 0.005mm
  • 24/7 engineering support
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What’s Insert Molding

Insert molding is a method of injection molding wherein a plastic material is injected around a plastic or metal insert positioned within a mold cavity. The insert is pre-positioned in the mold cavity before injection of the plastic. Upon cooling, this results in the formation of a solid, robust part. RapidDirect offers plastic insert molding services, enabling the creation of a sturdy and enduring bond between the insert and molded plastic.

Insert Molding
  • Assembly is eliminated with insert molded parts since they undergo a single manufacturing process.
  • Costs are reduced by eliminating the assembly process, making insert molding more economical than standard injection molding.
  • Insert molded parts typically have smaller dimensions and lower weight compared to all-metal parts.
  • Enhance part strength: Integrating plastic and metal inserts enhances the durability and strength of the parts in contrast to other injection molding methods.

Insert Molding from Prototyping to Production

Rapid Tooling

Rapid Tooling

Receive effortless design feedback and validation through superior-quality prototype tooling. Produce small batches of plastic molded parts with exceptional injection molding prototypes. We specialize in manufacturing prototype molds within days, allowing you to conduct functional tests and validate market interest efficiently.

Production Tooling

Production Tooling

We fabricate top-notch production molds tailored for high-volume plastic parts manufacturing. Crafted from robust, high-strength tool steel material, our production tooling is adept at producing hundreds of thousands of parts. We have the flexibility to adjust materials and construction methods to meet your specific requirements.

Conovawell Insert Molding Capabilities

Conovawell’s insert molding solutions cater to parts with diverse functional and aesthetic requirements. These guidelines aim to enhance part manufacturability, decrease lead time, and enhance part aesthetics. You can refer to the following standard design considerations:

Conovawell Insert Molding Capabilities

We offer a broad selection of materials for thermoplastics and inserts, enabling the production of insert-molded parts for various industrial applications. Below, you’ll find the materials utilized in custom plastic insert molding along with common examples.

Tooling Materials

Tooling Materials

Before commencing low or high-volume production through the insert molding process, precise CNC machined tooling with high tolerance is required. The most frequently used materials include:

  • Tool Steel: P20, H13, S7, NAK80, S136, S136H, 718, 718H,  738
  • Stainless Steel:420, NAK80, S136, 316L, 316, 301, 303, 304
  • Aluminum: 6061, 5052, 7075
Plastic Materials

Plastic Materials

The plastic injection molding service offers a diverse array of materials, each possessing distinct properties such as impact strength, rigidity, thermal resistance, chemical resistance, and more.

ABSNylon (PA)PCPVC
PUPMMAPPPEEK
PEHDPEPSPOM
Additives and Fibers

Additives and Fibers

When standard plastic materials fall short of meeting the requirements for custom injection molding parts, additives, and fibers can be incorporated to enhance both aesthetic and functional properties. These additions offer supplementary features to your injection molded parts.

UV absorbersColorants
Flame retardantsGlass fibers
Plasticizers
Inserts

Inserts

Inserts are introduced onto mold cores through either manual or automated processes, resulting in the plasticization of plastic pellets once the mold halves are closed. The pieces are ejected from the mold after the plastic has hardened, followed by the encapsulation of the inserts within the parts.

UV absorbersColorants
Flame retardantsGlass fibers
Plasticizers
Glossy

Glossy

A-grade finishes are achieved through a diamond buffing process, resulting in shiny surfaces on injection molded parts.

Semi-glossy

Semi-glossy

B-grade finishes are achieved using grit sandpaper, resulting in parts with a slightly rougher surface compared to grade A finishes. Custom molded plastic parts undergoing B-grade finishing exhibit a matte surface texture.

Matte

Matte

C-grade finishes are achieved through the use of grit sanding stones, resulting in a rough and uneven surface. Injection-molded plastic parts undergoing C-grade finishing exhibit a matte surface texture.

Textured

Textured

D-grade finishes involve the use of grit and dry glass beads or oxide to create a highly textured surface. Depending on the material utilized, products may exhibit a satin or dull finish.

Conovawell Insert Molding Capabilities

Plastic insert molding finds application in creating prototypes and complete products across various industries. Key industrial applications of insert molding include

Consumer Goods

Custom plastic insert molding is well-suited for producing consumer goods owing to its functional and aesthetic advantages.

Medical Devices

Before opting for insert molding to manufacture devices and products like medical implants, ensure that the plastic used is biocompatible.

Aerospace and Automotive

Used for producing handheld devices like screwdrivers, scissors, dials, and knobs.

Communication Devices

Utilized in the aerospace and automotive sectors because of the strength and durability of molded parts.

Insert Molded Parts
Insert Molded Parts
Insert Molded Parts
Insert Molded Parts
Insert Molded Parts

Conovawell strives to offer tailored insert molding solutions to clients, covering the entire process from design to production. Leveraging our expertise and advanced facilities, we ensure the delivery of high-quality parts at competitive prices and with short lead times.

No MOQ

No MOQ

Our absence of minimum order requirements facilitates the swift transition of plastic molded parts from design to production, catering to your on-demand molding manufacturing needs with decreased injection molding costs.

High Efficiency

High Efficiency

With certified domestic factories and a robust supply chain system in place, we expedite the product development cycle and streamline the production of your injection molded parts as efficiently as possible.

Consistency and High Quality

Consistency and High Quality

Thanks to certified factories, conducting in-process inspections, and performing dimensional verification after production, we ensure that custom molded parts maintain consistent quality, regardless of their complex shapes and high precision requirements.

Injection Molding Specialists

Injection Molding Specialists

Collaborating with our team of experts, each boasting over 10 years of experience in the injection molding industry, ensures efficient completion of the transition from prototyping to production.

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