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Injection Mold Tooling Service
Our injection mold tooling service delivers high-precision solutions that support reliable injection molding services for custom plastic parts. From rapid prototyping to full-scale production, we build durable, production-ready molds that ensure consistent quality, controlled tolerances, and fast turnaround times—helping manufacturers move from design to market with confidence.
- Quick-turn prototyping & production support – Injection mold tooling and injection molding services delivered in days.
- Certified quality & manufacturing standards – ISO 9001:2015, ISO 13485, ISO 14001:2015, and IATF 16949:2016 compliant.
- Scalable from low to high production volumes – Tooling for prototypes, bridge production, and high-volume injection molding services.
Bring your product ideas to life quickly and accurately with our expert prototyping services.
Injection Mold Tooling Types & Solutions
Lewei Precision offers flexible injection mold tooling solutions that support end-to-end injection molding services, from early product validation to full-scale production. Each tooling type is designed to balance cost, lead time, and durability while ensuring consistent part quality and a smooth transition across production stages.
Designed for early testing, design validation, and small batches, enabling fast and cost-effective injection molding services before committing to production tooling.
Ideal for pilot runs and early market launches, supporting stable injection molding services while demand ramps up.
Engineered for long production runs, delivering repeatable quality, tight tolerances, and long tool life for high-volume injection molding services.
Optimized for higher output and reduced per-part cost, with family molds producing related components efficiently in a single injection molding process.
Why Choose Lewei Precision for Injection Mold Tooling?
Lewei Precision delivers dependable injection molding services backed by precision-engineered mold tooling, fast lead times, and strict quality control—helping manufacturers achieve consistent results from prototype to production.
Tooling Built for Stable, Repeatable Molding
Our injection mold tooling ensures consistent part quality with controlled shrinkage, minimal warpage, and repeatable cycle-to-cycle output for reliable injection molding services.
Precision-built molds support tight tolerances up to ±0.02 mm, verified through structured inspection processes to maintain dimensional accuracy.
Early DFM and feasibility reviews reduce revisions, shorten lead times, and accelerate product launch for injection molding services.
Lewei Precision ______
Tooling for Optimal Performance
Lewei Precision applies strict tooling tolerances and quality standards to support reliable injection molding services across prototyping and production. Typical tooling tolerances are planned based on part geometry, material behavior, and mold class, with tighter control applied to critical features that affect fit, function, or assembly. Non-critical dimensions are managed with practical tolerance ranges to balance performance, manufacturability, and cost efficiency.
To ensure dimensional accuracy, all tooling and molded parts are verified using calibrated inspection equipment, including CMMs, height gauges, and pin gauges, depending on feature requirements. Where required, we provide First Article Inspection (FAI), detailed dimensional reports, and material certifications to confirm compliance before production release. This structured approach ensures consistent quality, repeatability, and confidence in every injection molding project.
Mold Tooling Services
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.
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 multiple injection mold types to support efficient injection molding services across prototyping, low-volume, and high-volume production, ensuring consistent quality and cost-effective manufacturing.
Best for prototypes and low-volume production, offering precise control, lower tooling cost, and flexible design changes.
Designed to maximize production efficiency by molding parts on multiple levels without increasing machine size.
Produces multiple identical parts per cycle, increasing output and reducing per-part cost for scalable injection molding services.
Combines two materials or colors in one molding process, reducing assembly steps and improving part functionality.
Injection Mold Tooling Surface Finish & Texture Options
Lewei Precision offers multiple surface finish options to enhance part appearance, functionality, and durability across a wide range of injection molding services, ensuring the final molded parts meet both cosmetic and performance requirements.
Provides a mirror-like surface finish, ideal for clear parts and premium injection molding applications where appearance is critical.
Delivers a smooth, clean look at balanced cost, suitable for most standard injection molding services and general-purpose components.
Reduces glare and hides fingerprints, making it ideal for consumer products and functional plastic parts.
Adds grip, hides scratches, and improves brand aesthetics for injection molded parts with frequent handling.
Used for non-cosmetic areas where friction, grip, or part function is more important than visual appearance.
Creates a uniform, lightly roughened surface that improves coating adhesion and provides a consistent industrial look.
Tooling Manufacturing Process: From CAD to Ready-to-Run Mold
Requirement Review & Quote
CAD review, production volume, resin selection, and part requirements for accurate tooling and injection molding services.
Tool Design & Approval
3D mold design review covering cavity layout, gating, cooling, and final sign-off before production.
CNC Machining / EDM / Grinding
High-precision cavity and core manufacturing to achieve tight tolerances and repeatable injection molding performance.
Polishing, Texturing & Final Tool Assembly
Surface finishing and complete mold assembly matched to functional and cosmetic requirements.
Materials for Injection Mold
Tool Steel for Injection Molds
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 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 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
Injection Molding Services for Diverse Industries
Lewei Precision delivers reliable injection molding services and mold tooling solutions for a wide range of industries, supporting everything from precision components to high-volume production parts with consistent quality and performance.
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
Advantages of Injection Mold Tooling
Injection mold tooling enables efficient, high-quality injection molding services by delivering consistent performance, cost efficiency, and design flexibility across production volumes.
- High repeatability and consistency – Ensures uniform part quality across every production cycle.
- Lower cost per part at volume – Reduces unit cost significantly in medium to high-volume manufacturing.
- Wide material compatibility – Supports a broad range of engineering plastics and resins.
- Excellent surface finish potential – Achieves cosmetic and functional finishes directly from the mold.
- Complex geometries achievable – Produces intricate features and tight tolerances with accuracy.
- Scalable from prototypes to production – Seamless transition from early testing to mass production.
Applications
Applications of Injection Mold Tooling
Injection mold tooling supports diverse injection molding services across industries requiring precision, durability, and repeatability.
- Housings & Enclosures Protective plastic housings for electronics, equipment, and consumer products.
- Connectors, Clips & Fasteners Small, high-precision components requiring tight tolerances and repeatable fit.
- Gears & Mechanical Components Durable plastic gears and moving parts for mechanical and industrial applications.
- Medical Device Plastic Parts Precision-molded components for medical devices, where consistency and quality are critical.
- Consumer Product Components Everyday plastic parts designed for appearance, usability, and mass production.
- Industrial Plastic Assemblies Structural and functional plastic assemblies used in machinery and industrial systems.
CNC Machining FAQs
How much do injection mold tooling services cost?
The cost of injection mold tooling services depends on part complexity, mold size, tooling material, number of cavities, and required surface finish. Prototype tooling is typically more affordable, while production tooling costs more due to durability and longer tool life.
What affects injection mold tooling lead time?
Lead time is influenced by mold complexity, cavity count, tooling material, surface finish requirements, and the level of validation needed. Early DFM feedback and clear requirements help reduce tooling lead time.
Which tooling material is better: aluminum or steel?
Aluminum tooling is ideal for prototypes and low-volume injection molding services due to faster machining and lower cost. Steel tooling is better for high-volume production, offering higher durability and longer service life.
Can you match a specific surface finish or texture?
Yes, injection mold tooling can be finished with polished, matte, textured, or functional surfaces to meet cosmetic and performance requirements for injection molding services.
What files are required to quote injection mold tooling?
We typically require 3D CAD files such as STEP or IGES, along with material selection, quantity targets, and surface finish requirements to provide an accurate tooling quote.
Do you provide DFM feedback before tool manufacturing?
Yes, we provide DFM (Design for Manufacturability) feedback to optimize part geometry, reduce tooling risk, and ensure smooth injection molding production before cutting the tool.
How is the injection mold validated before production?
Mold validation includes pre-production inspection, T1 sampling, dimensional checks, and corrective adjustments to ensure the tool performs reliably in injection molding services.
Can low-volume tooling be scaled to mass production later?
Yes, tooling strategies can be planned to support low-volume production first and later transition smoothly to production tooling without changing suppliers.
What tolerances can you achieve for injection molded parts?
Typical molded part tolerances depend on part geometry and material, with tighter tolerances applied to critical features. Final tolerances are confirmed during tooling review and validation.
Do you offer tool maintenance or replacement inserts?
Yes, we support tooling maintenance, repairs, and replacement inserts to extend mold life and maintain consistent quality throughout injection molding production.
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