Injection Mold Tooling Service

Our injection mold tooling service provides high-precision, cost-effective solutions for custom molded parts with quick-turnaround times, making it ideal for both prototyping and production.

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Precision machined metal parts for engineering applications.

Bring your product ideas to life quickly and accurately with our expert prototyping services.

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Exceptional Precision

Our ISO-certified CNC machining guarantees high-quality parts with precision at every stage. Each component is crafted to meet exact specifications and perform reliably.

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Quick Turnaround

Leveraging our certified domestic facilities and efficient supply chain, we shorten production times, ensuring your injection molded parts are delivered as quickly as possible.

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Expert Engineering Guidance

With extensive experience across various molds and products, our team offers expert advice and solutions to help you achieve your business objectives efficiently.

Tooling for Optimal Performance

Lewei Precision

At Lewei Precision, we specialize in high-precision tooling to ensure that every injection molded part fits perfectly and performs flawlessly. Our advanced technology and expert team meticulously craft each mold to meet the tightest tolerances, guaranteeing the highest level of precision and quality for your project.
We use state-of-the-art equipment and rigorous quality control measures to ensure that every mold is built to last and delivers consistent results. With Lewei Precision, you can trust that your parts will meet exact specifications and function reliably in any application.

Two black plastic enclosures, top and bottom view

Mold Tooling Services

Lewei Precision
Prototyping

Rapid Tooling

We offer fast and cost-effective prototyping and rapid tooling services to help you validate your designs quickly. Our expert team works with you to provide superior quality prototype tooling, enabling you to produce small batches of plastic molded parts. We utilize affordable aluminum tooling to minimize financial risks, allowing you to perform functional tests and gauge market interest before moving to full-scale production.

Production

Tooling for High-Volume Runs

Lewei Precision specializes in creating durable, high-quality production molds for high-volume plastic parts manufacturing. Using robust tool steel materials, our production tooling is designed to withstand the demands of producing hundreds of thousands of parts. We tailor materials and construction methods to meet the specific requirements of your project, ensuring efficient and reliable mass production.

Types of Injection Molds

Lewei Precision offers a wide range of injection mold tooling options, tailored to meet your specific needs and applications. From prototype molds to production and export molds, we are your trusted partner in delivering precision solutions for all your molding requirements.

Steel mold blocks for manufacturing parts
Single Cavity Mold

For low-volume production of plastic parts, our single cavity molds provide high-quality, cost-effective tooling. This option gives you more control over the manufacturing process, ensuring consistent, reliable results for small batch production.

Aluminum mold with four cavities for shaping parts.
Stack Mold

Lewei Precision offers innovative stack molds that significantly increase output by utilizing multiple cavities in each parting surface. These molds improve molding efficiency and reduce overall part costs, enabling the creation of multi-component assemblies in a single shot.

Metal injection molding machine industrial equipment
Multi-Cavity Mold

Maximize production efficiency with our multi-cavity molds, designed to produce multiple parts per cycle. This tooling solution reduces unit costs while optimizing cycle times, enabling you to achieve higher productivity and greater quantities of parts with each cycle.

Detailed view of a metal industrial mold.
2K Injection Mold

For custom molding with two different plastic materials, our 2K injection molds offer a cost-effective and efficient solution. By combining soft and hard plastics into one product, our tooling eliminates assembly steps, saving you time and money while producing high-quality, multi-material products.

Materials for Injection Mold

Tool Steel for Injection Molds
Precision-machined metal part with multiple cutouts and holes.

Tool steel is a commonly used material for injection molding tooling, particularly for high-precision CNC machined molds required in both low and high-volume production. Tool steels provide excellent durability and high tolerance for demanding applications.
Types: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738

Stainless Steel for Injection Molds
Close-up of black industrial metal component

Stainless steel is often used for injection molds in large-scale production due to its high cost and excellent performance. It is known for its corrosion resistance and longevity, making it ideal for high-volume manufacturing where durability and precision are essential.
Types: 420, NAK80, S136, 316L, 316, 301, 303, 304

Copper for Injection Molds
Close-up of a shiny metal round object

Copper is another material commonly used for injection molds, particularly when thermal conductivity is a crucial factor. Copper alloys are excellent for applications where fast cooling rates are required, making them ideal for high-production cycles and complex geometries.
Types: C110, C172, C194, C5210

Lewei Precision Injection Molding Capabilities

We are specialized in designing and crafting custom injection molds using high-quality materials. Our efficient processes ensure exceptional consistency and repeatability, delivering fast lead times at competitive pricing. 

Class

Purpose

Shot Life

Tolerance

Cost

Lead Time

Class 105

Prototype Testing

Under 500 cycles

± 0.02mm

$

7-10 days

Class 104

Low-volume Production

Under 100,000 cycles

± 0.02mm

$$$

10-15 days

Class 103

Low-volume Production

Under 500,000 cycles

± 0.02mm

$$$$

10-15 days

Class 102

Medium-volume Production

Medium-volume Production

± 0.02mm

$$$$$

10-15 days

Class 101

High-volume Production

Over 1,000,000 cycles

± 0.02mm

$$$$$$

10-18 days

Advantages

Lewei Precision Plastic Injection Molding Process

Plastic injection molding is a highly efficient and flexible manufacturing process, ideal for producing intricate and high-precision plastic parts.

Applications

Applications of Plastic Injection Molding

Various industries rely on precision CNC machining services to create specialized parts, including:

CNC Machining FAQs

We use advanced CNC machining and precision inspection tools like CMM to maintain tight tolerances and ensure consistency throughout production.

Cooling channels regulate the mold temperature, improving cycle times and ensuring uniform part cooling to prevent defects like warping.

Yes, we can design molds for 2K molding, allowing the combination of two materials into one part, which improves functionality and reduces assembly steps.

We use advanced CAD software and 3D modeling to design molds that accommodate complex geometries, undercuts, and intricate details for precise part production.

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