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Leadpoint supports custom mold projects from manufacturability review and 3D structure design through precision machining, fitting, inspection, and production-readiness validation. Our engineering team focuses on stable tooling performance, maintainable structures, and clear quality documentation for demanding industrial applications.
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DFM and mold structure review -
Precision machining, EDM, grinding and fitting
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Assembly, validation and engineering modification support
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Inspection records and project traceability available
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Supported by Advanced Grinding & Testing Equipment
24/7 Technical Support & Full Inspection Reports
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Responsive Engineering Support
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NDA Available
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Prototype to Production Tooling
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Inspection Reports Available
End-to-End Services You Can Trust
We review part geometry, draft, wall thickness, undercuts, parting lines, critical dimensions, surface requirements, and expected production volume before tooling begins. The goal is to identify manufacturing risks while changes are still economical.
Our engineering team develops or reviews mold layouts, core and cavity structures, sliders, lifters, threaded mechanisms, ejection, cooling, venting, and replaceable wear components according to the application.
CNC machining, EDM, wire EDM, grinding, heat-treatment coordination, polishing, and fitting are selected according to each component’s geometry, hardness, finish, and tolerance requirements.
Mold components are fitted, checked, and documented before delivery. Engineering changes, replacement inserts, and modification support can be provided according to approved drawings and project requirements.
We provide beyond-standard mold design support. With professional engineering experience, we deliver DFM optimization, design review, structural assistance and reverse engineering services
Typical Molds Types
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Injection Molds -
Compression Molds -
Stamping Dies -
Transfer Molds -
Thermoforming -
Overmolding Molds -
Two-Color Injection -
Complex Action -
Prototype Molds -
BMC Molds
Have a similar part to manufacture?
Get Free Quote Industries for Mold Applications
Leadpoint provides high-precision mold design and manufacturing solutions across multiple industries, leveraging advanced CNC, grinding, and optical technologies to ensure tight tolerances, consistent quality, and reliable production.
- Cosmetics Packaging: Caps, jars, closures, dispensers, and threaded packaging parts.
- Medical Devices: Precision housings, connectors, disposable parts, and functional components.
- Caps and Closures: Bottle caps, threaded closures, screw inserts, and multi-cavity parts.
- Automotive Components: Connectors, electronic parts, structural components, and interior parts.
- New Energy Equipment: Battery components, electrical connectors, and energy-system parts.
- Electronics: Precision connectors, housings, terminals, and micro-components.
- Plastic Gears: Gears, transmission parts, precision inserts, and mechanical components.
- Industrial Automation: Fixtures, equipment parts, mechanical housings, and custom tooling.
Common Mold Materials
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. Steel / Aluminum .-
P20 / 3Cr2Mo
Cost-effective pre-hardened plastic mold steel with good cutting performance, uniform hardness and small deformation during processing.
Typical Applications- Home appliance parts
- Daily plastic goods
- Electronic components
- General injection molds
Cost Efficiency:
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718 / 1.2738
Nickel-enhanced upgraded version of P20 steel with better toughness, higher finish and stronger fatigue resistance. It features stable long-cycle molding performance and is suitable for high-standard long-run production molds.
Typical Applications- Auto interior parts
- High-end housings
- Mass production molds
- Precision plastic parts
Cost Efficiency:
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S136 / 1.2083
High-corrosion-resistant mirror mold steel with ultra-high polishing performance, excellent rust resistance and stable texture. It effectively resists erosion from corrosive plastics and achieves flawless mirror surface effect.
Typical Applications- Optical plastic parts
- Medical plastic parts
- Cosmetic packaging
- High-gloss precision molds
Cost Efficiency:
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NAK80
High-precision pre-polished steel without quenching treatment, featuring high dimensional accuracy, ultra-smooth surface and short processing cycle. It requires no subsequent heat treatment and delivers stable high-finish molding.
Typical Applications- Digital appearance parts
- High-precision toys
- Luxury packaging parts
- Ultra-fine decorative parts
Cost Efficiency:
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H13 / 1.2344
Premium universal hot work mold steel with excellent thermal shock resistance, thermal fatigue resistance and toughness. It can withstand long-term high-temperature alternating impact and is the preferred material for alloy die-casting molds.
Typical Applications- Alloy die casting
- Thermal forming molds
- Auto casting parts
- High-temperature industrial molds
Cost Efficiency:
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Explore our full material list or contact our engineering team for recommendations.
Surface Finishing for Molds
At Leadpoint, we apply a range of precision surface treatment processes to ensure molds meet both functional and visual requirements for different industries.
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Polishing
Friction removes surface irregularities, creating a smooth, mirror-like finish that enhances appearance and feel.
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Sandblasting
High-speed abrasive particles create textures on the surface, remove impurities, and improve adhesion.
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Texture
This method allows for highly repeatable, uniform, and functional surface patterns that enhance part release, reduce sticking, and improve aesthetic quality in injection molded parts.
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Coating Treatments
Includes anti-wear and anti-corrosion coatings for extreme conditions.
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Nitriding Treatment
Improves surface hardness and wear resistance for long service life.
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Hard Coating
Provides excellent corrosion resistance and surface durability.
*Not sure which finish is right for your part? Explore our complete guide
Tolerance Guide
At Leadpoint, we ensure that every mold component meets the strictest precision standards. By leveraging advanced CNC machining, EDM, PG optical grinding, JIG grinding, and cylindrical grinding technologies, we achieve exceptional dimensional accuracy, concentricity, and surface quality.
Proper tolerance design helps reduce machining cost and improve production efficiency:
- Ensures consistent molding performance
- Reduces defect rate in high-volume production
- Enables interchangeability of components
- Critical for complex molds with deep cavities
- Supports high-end industry standards
| Mold Feature / Component | Typical Requirement | Inspection Method | Quality Focus |
| General Mold Plates & Features | ISO 2768-mK or drawing tolerance | CMM, height gauge, micrometer | Dimensions, hole position, flatness |
| Precision Cores, Cavities & Inserts | Critical dimensions up to ±0.001 mm | CMM, optical measurement | Profile accuracy, matching precision |
| Critical Diameters & Round Parts | Tight tolerance per drawing | Micrometer, air gauge, roundness tester | Diameter, concentricity, runout |
| Precision Mold Part Roundness | ≤0.002 mm depending on geometry | Roundness tester, air gauge | Rotation accuracy, assembly stability |
| Shut-Off & Sealing Surfaces | Functional fit requirements | CMM, blue-check inspection | Sealing performance, flash prevention |
| Sliding Fits & Mechanisms | Clearance controlled per drawing | CMM, functional test | Smooth movement, alignment |
| Threaded Inserts & Cores | Thread accuracy per drawing | Thread gauge, CMM | Thread fit, demolding performance |
| Interchangeable Spare Parts | Same datum and revision standard | CMM, comparison inspection | Easy replacement |
| Flatness & Parallelism | Controlled by design requirements | CMM, surface plate | Alignment, sealing |
| Surface Roughness | Precision surfaces up to Ra ≤0.05 μm | Roughness tester | Release performance, appearance |
| Heat-Treated Components | Hardness per material specification | Hardness tester, material certificate | Hardness consistency |
| Final Mold Assembly | Complete fit and function verification | Assembly inspection | Alignment, movement, reliability |
Not sure about the right tolerance for your part?
Get Free Quote Steps in the Mold Design Process
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STEP 1
Drawing -
STEP 2
DFM Analysis -
STEP 3
Material Preparation -
STEP 4
Precision Machining -
STEP 5
Surface Finishing -
STEP 6
Mold Assembly & Fitting -
STEP 7
Inspection
Case Studies
We showcase successful projects across multiple industries, reflecting our expertise in mold design, manufacturing, and precision engineering.
Guides to Optimize Your Mold Design
Frequently Asked Questions
Ready to Start Your Custom Parts Project?
Upload your drawings (STEP, STP, IGES, STL) or contact our team for a fast and confidential quotation.
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Our Equipment
Our advanced manufacturing equipment ensures high precision, stable production, and consistent quality across every stage of mold design and manufacturing.
Expert Team, Exquisite Molding
The Leadpoint mold design team combines deep industry experience with practical expertise. Our core team members include:
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General Manager / Founder: 15+ years in precision mold and machining
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Technical Director: 12+ years in CNC machining and mold design
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Production Manager: 10+ years in precision manufacturing management
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Quality Manager: 8+ years in precision parts quality control
What You Can Expect From Us
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Customized Design Support
We provide DFM, material selection advice, and process optimization based on customer drawings or samples.
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Rapid Prototyping Service
For new product development, we offer 7–15 day rapid prototyping to help accelerate product launch cycles.
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One-Stop Multi-Process
Integrating CNC turning, milling, grinding, wire cutting, EDM, and surface finishing to reduce outsourcing and improve efficiency.
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Quality Assurance
Each batch is delivered with inspection reports including CMM, profile, and surface roughness reports to ensure consistency.
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NDA Confidentiality Protection
Strict protection of customer drawings and product information with formal NDA agreements.
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After-Sales Technical Support
Providing assembly guidance, usage recommendations, and fast response to quality or technical issues after delivery.
