Insert Molding Services
Custom insert molding services for high-quality prototypes and on-demand parts. Rapid Tooling Production as fast as 3 weeks.
What is Insert Molding?
Insert molding is an injection molding technique that involves injecting a plastic material around a plastic or metal insert placed in a mold cavity. The insert is pre-placed in the mold cavity, after which the plastic is injected. On cooling, this forms a solid part that is strong and durable. Zhonghui plastic insert molding services allow you to make a strong and permanent bond between the insert and molded plastic.
Zhonghui Insert Molding Services
A, PROTOTYPING-Rapid Tooling
Get easy design feedback and validation through superior quality prototype tooling. Create small batches of plastic molded parts with excellent injection molding prototypes. We excel at manufacturing prototype molds within days to ensure you perform functional tests and validate market interest.
B, PRODUCTION- Production Tooling
We create high-quality production molds for high-volume plastic parts production. With high-strength, durable tool steel material, our production tooling is suitable for producing hundreds of thousands of parts. We can vary materials and construction methods according to your unique requirements.
Materials for Injection Molding
We offer a broad range of thermoplastic and thermoset materials, each selected for its performance characteristics and suitability for different applications.
a.Such as: ABS/ Polycarbonate/ PMMA/ POM/ Nylon/ Polypropylene/ PEEK/ Polypropylene/ HDPE/ HIPS/ LDPE.
| ABS | ABS is strong, durable, and offers good resistance to heat and impact. It’s preferred for automotive components and consumer goods. | ABS Beige(Natural), ABS Black, ABS Black Antistatic, ABS Milky White, ABS+PC Black, ABS+PC White |
| Polycarbonate | Polycarbonate is extremely durable and has high impact resistance, along with excellent clarity, used for bullet-proof glass and protective gear. | PC Black, PC Transparent, PC White, PC Yellowish White, PC+GF30 Black |
| PMMA | PMMA, or acrylic, is known for its crystal clarity and weather resistance, making it ideal for outdoor fixtures and display cases. | PMMA Black, PMMA Transparent, PMMA White |
| POM | POM is strong, with a low friction surface and good dimensional stability, perfect for precision parts in mechanical applications. | Dark brown (coffee) POM 100AF, POM Black, POM Blue, POM White |
| PA(Nylon) | Nylon is versatile, strong, and wears well against friction, commonly used for gears, bearings, and other wear-resistant surfaces. | PA(Nylon) Blue, PA6 (Nylon)+GF15 Black, PA6 (Nylon)+GF30 Black, PA66 (Nylon) Beige(Natural), PA66 (Nylon) Black |
| Polyethylene | Polyethylene is lightweight and has high resistance to impact, widely used in packaging and containers. | PE Black, PE White |
| PEEK | PEEK is renowned for its high temperature resistance and strength, often used in aerospace and medical implant manufacturing. | PEEK Beige(Natural),PEEK Black |
| Polypropylene | Polypropylene is tough, has excellent chemical resistance, and is used for automotive parts, containers, and in packaging. | PP Black, PP White, PP+GF30 Black |
| HDPE | HDPE is known for its high strength-to-density ratio, resistance to impacts, and is used in making bottles and corrosion-resistant piping. | HDPE Black, HDPE White |
| HIPS | HIPS is easy to machine and offers good dimensional stability and impact resistance, suitable for prototyping and modeling. | HIPS Board White |
| LDPE | LDPE is soft, flexible, and used in applications where heat sealing is required, such as in tubing and plastic bags. | LDPE White |
| PBT | PBT is a strong, rigid plastic that is heat resistant and commonly used in electrical components and casings. | PBT Black, PBT Milky White（Natural） |
| PVC | PVC is robust, cheap, and has good chemical resistance, used in plumbing, medical devices, and cables. | PVC Grey |
| PET | PET is strong, resistant to moisture and chemicals, and widely used in food containers and textile fibers. | PET Black, White, PET+GF30 Black, PET+GF30 White |
Insert Molding Capabilities
Zhonghui insert molding solutions manufacture parts with different functional and aesthetical needs. These guidelines will help improve part manufacturability, reduce lead time, and improve the part aesthetics. You can check the following standard design considerations:
| Standards | Description | |
| Maximum Part Size | 750×900×350mm, 29.5 ×35.4×13.8 in. | |
| Manimum Part Size | 2×2×2mm, 0.08×0.08×0.08in | |
| Substrate Wall Thickness | From 0.5 to 3mm,From 0.20 to 0.12 in. | |
| Tolerance | +/- 0.025 mm,+/- 0.00098 in. | |
| Inserts | Inserts can be female and male. They both can improve a product’s appearance and utility. | |
| Mold Validation | Provide T0, T1, T2 samples before mass production | |
| Inspection and Certification Options | First Article Inspection, ISO 9001, IATF16949 | |
| Lead Time | From mold making to sample delivery: 20-45 business days | |
Advantages of Insert Molding
Insert molding reduces assembly and labor costs, enhances part strength and reliability, and allows for multi-material and complex component integration.
● Eliminate assembly: Insert molded parts do not require assembly because there is only one manufacturing process.
● Reduce costs: The removal of the assembly process reduces the cost of the insert molding process compared to the standard injection molding.
● Reduced part size and weight: Insert molded parts that weigh less than all-metal parts.
● Improve part strength: Incorporating plastic and metal inserts increases the durability and strength of the parts compared to other injection molding processes.
Applications of Insert Molding
Plastic insert molding is applicable in making prototypes and full products in several industries. Key industrial applications of insert molding include:
● Consumer Goods: The custom plastic insert molding is suitable for making consumer goods due to its functional and aesthetic benefits.
● Medical Devices: Ensure the plastic is biocompatible before you choose insert molding to make devices and products such as medical implants.
● Aerospace and Automotive: Applicable in making handheld devices such as screwdrivers, scissors, dials, and knobs.
● Communication Devices: Applicable in the aerospace and automotive industry due to the strength and durability of molded parts.
Why Choose Us
Zhonghui was founded in 2009 by Mr Huang, with over 20 years of combined professional experience in Aluminum/Zinc die casting
and CNC machining in Dong Guan of China. In 2021, we launched injection molding and sheet metal fabrication services.
Zhonghui provides highly trained engineers to support your project. We are ISO 9001: 2015 and IATF16949:2016 Accredited.
How may we help you?
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