Insert Molding Service

We specialize in insert molding, integrating metal inserts into molded plastics for robust and durable parts suitable for various industries.

开始新的 CNC 报价
用于工程应用的精密机加工金属零件。

通过我们的专业原型设计服务,快速准确地实现您的产品创意。

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高质量部件

我们通过 ISO 认证的 CNC 加工可确保精度和质量。每一个零件都经过先进的质量控制,完美匹配,性能无懈可击。

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Fast Lead Time

With certified domestic factories and a strong supply chain system, we accelerate the product development cycle and bridge the production of your overmolded parts as fast as possible.

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Engineering Support

Working with our experts having 10+ years of experience in the injection molding industry, efficiently complete a turnaround from prototyping to production.

CNC Machining Solutions

乐为精密

Insert molding is an injection molding technique that involves injecting a plastic material around a plastic or metal insert (but can also include ceramic or other materials) placed in a mold cavity. The insert is pre-placed in the mold cavity, after which the plastic is injected. These inserts, including threaded metal inserts for enhanced durability, provide specific mechanical or electrical properties to the final product. For example, metal inserts such as aluminum or stainless steel add tensile strength and conductivity, making insert injection molding ideal for highly durable and functional parts. On cooling, this forms a solid part that is strong and durable. Lewei plastic insert molding services allow you to make a strong and permanent bond between the insert and molded plastic.

Metal mold with plastic injection component

CNC Machining Solutions

乐为精密
原型设计

Lewei Prototyping

Leverage our robust manufacturing capabilities for swift, high-quality prototype delivery. Using the latest technology, we ensure Lewei, accurate production, expediting your path from testing to market.

Capability: 20-500

准备时间: 10 business days

生产

Low and High-Volume Production

Lewei Precision is equipped to handle large-scale production orders. This means they can efficiently produce large quantities of CNC precision machining parts without compromising quality or accuracy.

Capacity: 1000+

交货时间: 15 business days

材料

Materials for Insert Molding

We offer a broad range of thermoplastic and thermoset materials, each selected for its performance characteristics and suitability for different applications.

Plastics

White mechanical component on black background

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

Black automotive engine part on white background

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

Transparent engine component on reflective surface

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

Two black wall mount brackets with cutouts.

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

Blue plastic industrial part with multiple holes

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

Black metal bracket with two circular holes.

Polyethylene is lightweight and has high resistance to impact, widely used in packaging and containers.

PE Black

PE White

Beige plastic mounting plate with bolt holes.

PEEK is renowned for its high temperature resistance and strength, often used in aerospace and medical implant manufacturing.

PEEK Beige(Natural)

PEEK Black

White gear and bracket on white background

Polypropylene is tough, has excellent chemical resistance, and is used for automotive parts, containers, and in packaging.

PP Black

PP White

PP+GF30 Black

Overmolding Capabilities

Lewei Precision’s wire EDM, part of our CNC services, efficiently crafts both simple and intricate shapes. Ideal for parts requiring high precision, this no-contact method produces minimal burrs and excels with metals like steel and titanium. Favored in aerospace, automotive, and electronics for their accuracy, we ensure tailored, precise solutions regardless of your needs.

Plastic injection mold with finished part

Capability

Details/Specifications

Material Compatibility

Stainless Steel, Titanium, Aluminum, Tool Steel, Copper

宽容

± 0.0001 inches (0.0025 mm) or better (based on material and thickness)

Maximum Workpiece Size

Length: 16 inches (400 mm)

Width: 12 inches (300 mm)

Height: 8 inches (200 mm)

Cutting Speed

Up to 300 mm2/min (specific to material and thickness)

表面处理

As fine as Ra 0.2 µm

Maximum Cutting Thickness

Up to 12 inches (300 mm) – varies based on material

Wire Diameter Range

0.004 inches (0.1 mm) to 0.012 inches (0.3 mm)

Wire Diameter Range

0.004 inches (0.1 mm) to 0.012 inches (0.3 mm)

Wire Diameter Range

0.004 inches (0.1 mm) to 0.012 inches (0.3 mm)

优势

Advantages of Precision Machining

精密加工能生产出精度极高的零件,因而具有显著的优势。

应用

Applications of Precision Machining

各行各业都依赖精密数控加工服务来制造专用零件,其中包括

Overmolding vs Insert Molding

Insert molding integrates pre-formed inserts, often metal, into a single molding process, creating a unified part. Overmolding, a multi-step process, molds one material, typically a TPE, over a rigid substrate. Insert molding offers single-shot efficiency for enhanced strength and reduced assembly. Overmolding excels in creating parts with varied textures and functionalities, like a toothbrush with a rigid core and soft grip. Here’s a video to explain the vital differences between these valuable process

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