Custom High-Precision Mold & Tooling Solutions for EV & Energy
Molds and tooling for electric vehicles and energy — battery components, charging connectors and power housings with tight tolerance control and high-volume capability.
- Precision Tolerance: Machining precision up to ±0.005 mm with CMM full inspection report
- Fast T1 Sampling: Prototype & rapid tooling delivered in as fast as 15 business days
- HV Material & Resin Expertise: Optimized for flame-retardant, high-temp resins (PA66+GF, PBT, PEEK)
- Complete Production Support: Multi-cavity, hot runner systems, and high-volume mold longevity
🔒 NDA Protected⚡ 2-Hour Quote Response📁 STEP, IGES, X_T, DWG
Trusted Tier-1 & OEM Standards:
EV & ENERGY DIE / MOLD & PARTS FABRICATION
Solving EV & Energy Tooling Challenges with Precision Engineering
From high-voltage connector inserts to thin-wall battery pack housings and charging infrastructure molds, we solve strict tolerance, thermal deformation, and high-wear challenges for EV OEMs and energy-sector suppliers.
PAIN POINT 01
High-Voltage Connector & Busbar Machining Precision
The Challenge
HV connectors, copper busbars and laminated busbar insulators demand micron-level flatness and burr-free edges — glass-filled PA66+GF and abrasive copper alloys cause rapid tool wear, flash, and contact-accuracy drift under high injection pressure.
Our Solution
Jig-ground and wire-EDM inserts holding ±0.002 mm on critical features, with DLC / TiAlN PVD-coated core pins extending mold life up to 1,000,000+ shots.
PAIN POINT 02
Deep-Cavity Machining & Thermal Control of Battery Enclosures
The Challenge
Large thin-wall aluminum battery pack housings (7075-T6 / 6061-T6) suffer machining stress deformation and deep-cavity tool deflection, while heat build-up in the cavity distorts critical sealing faces.
Our Solution
High-speed 5-axis CNC with stress-relief heat treatment cycles, plus Moldflow-optimized conformal cooling channels for zero-warpage, thermally stable production.
PAIN POINT 03
Thermal Management in Charging Pile & Inverter Tooling
The Challenge
Charging connectors, inverter housings and power module enclosures run in continuous high-heat duty — hot-work steel fatigue, heat checking, and uneven cooling shorten mold life and cause cycle-time drift.
Our Solution
H13 / SKD61 hot-work steels vacuum-hardened to HRC 52–56 with balanced cooling circuit design, reducing thermal fatigue and holding stable cycle times in high-volume production.
Need a DFM Analysis for Your EV & Energy Tooling?
Upload your STEP/IGES CAD files for a free manufacturability & moldflow thermal assessment.
ENGINEERING SPECIFICATIONS & EQUIPMENT
Advanced EV & Energy Tooling Capabilities
Manufacturing Limits & Accuracy Standards
| Specification Parameter | Automotive & EV Standard | High-Precision Custom |
|---|---|---|
| Machining Tolerance | ±0.005 mm (Standard) | Up to ±0.002 mm (Critical Connector & Busbar Features) |
| Surface Roughness | Ra 0.4 µm | Up to Ra 0.05 µm (Mirror EDM) |
| Min. EDM Radius | R 0.05 mm | R 0.02 mm (Micro-Connectors & Terminals) |
| Max. Mold/Part Dimensions | 1200 × 800 × 600 mm | Multi-Cavity & Battery Pack Tooling |
| Core & Cavity Steels | NAK80, S136, H13, SKD61 | Carbide, Stavax, DC53, Hot-Work ESR Grades |
| Quality Verification | 100% CMM Inspection | Full PPAP Level 3 Report + Material Certs |
Key In-House Processing Equipment
Makino & Yasda 5-Axis CNC
Designed for deep battery-housing cavities, thin-wall aluminum enclosures, and high-speed structural mold machining.
Sodick Wire EDM
Achieves sub-micron positional accuracy (±0.0015 mm) for busbar, connector inserts, and punch dies.
Makino Mirror EDM
Ensures high-gloss cosmetic surfaces and sharp ribs on charging-connector and power-housing molds without manual polishing deformation.
ZEISS CMM & Optical Scanners
Full temperature-controlled inspection lab providing dimensional tolerance maps for OEM approval.
Standard EV & Energy Tooling Execution Flow
DFM & Moldflow
CAD evaluation & thermal simulation
Precision CNC & EDM
5-axis machining & vacuum heat treatment
CMM & T1 Trial
First article inspection & sample submission
PPAP & Delivery
Full documentation & volume release
APPLICATION & INDUSTRY SOLUTIONS
High-Performance Mold Solutions for EV and Energy
Battery Components
High-precision molds
Tolerance, heat resistance
Charging Connectors
Precision inserts and stamping dies
Contact accuracy, wear resistance
Power Housings
Large injection molds
Strength, dimensional stability
Busbar Insulators
High-temp tooling
Heat, creep resistance
MATERIAL SPECIFICATIONS & COMPLIANCE
EV-Grade Materials & Quality Compliance
Full material traceability and strict compliance standards for high-voltage connector molds, battery-pack structural tooling, and precision insert machining.
Certified Steels & Alloys
Premium Mold Steels
Non-Ferrous & Lightweight Metals
Engineering Plastics
Coatings & Heat Treatments
PVD Hard Coatings
Thermal Processing
Surface Texturing & Finishing
Full PPAP Documentation
Deliverable Checklist
Require Material Certification or Custom Heat Treat Specifications?
We provide full EN 10204 3.1 material traceability reports with every single shipment.
🔒 NDA Protected Files
ENGINEERING & TECHNICAL SUPPORT
Pre-Manufacturing DFM Analysis & Collaborative Workflow
Mitigate tooling risks before steel cutting. We provide comprehensive Moldflow simulation and DFM analysis to optimize your EV & energy components for mass production.
Free DFM & Moldflow Analysis Before Production
Moldflow Thermal Management Simulation
Simulate melt flow and cavity temperature distribution for high-voltage connectors and power housings to prevent hot spots, sink marks, and thermal shrinkage.
Thin-Wall Battery Enclosure Deformation Control
Analyze warpage and stress on thin-wall aluminum battery housings, optimizing rib layout and ejection balance for dimensional stability.
Conformal Cooling Channel Design
Optimize cooling circuit layouts to cut cycle time and eliminate heat concentration on busbar insulators and charging-component molds.
Machining Interference & Tool Reach Check
5-axis collision detection and deep-cavity tool accessibility verification for precision mold inserts and battery-tooling cores.
Seamless 6-Step Project Execution
CAD Receipt & NDA
Secure transfer of STEP, IGES, X_T files under strict Non-Disclosure Agreement.
Free DFM & Feasibility Review
Receive detailed DFM report with gate location, cooling & draft angle recommendations within 24 hours.
Engineering Quote & Sign-off
Transparent line-item pricing covering mold steel, coating, and lead times.
Precision CNC & Mold Fabrication
In-house 5-axis CNC machining, mirror EDM, and vacuum heat treatment execution.
CMM Inspection & T1 Trial (FAIR)
First Article Inspection Report (FAIR) and full CMM dimensional mapping provided with T1 samples.
PPAP Level 3 & Shipping
Global express/freight shipment with complete steel certs and IATF 16949-compliant documentation.
Have a New EV or Energy CAD File Ready for Evaluation?
Send us your 3D model. Our tooling engineers will return a comprehensive DFM report & quote within 2–12 hours.
.STEP | .IGES | .X_T | .DWG | .PDF (Max 100MB)
QUALITY ASSURANCE & INSPECTION
EV-Grade Inspection Standards & Zero-Defect QA
Every mold component and high-voltage connector insert undergoes rigorous dimensional and metallurgical testing to guarantee compliance with EV OEM and Tier-1 requirements.
INSPECTION HARDWARESub-Micron Metrology Lab
- ZEISS CMM Inspection: Temperature-controlled 3D scanning down to ±0.001 mm accuracy for complex connector and busbar contours
- Optical Measuring Projectors: 0.001 mm resolution for micro-connector pins and draft angle verification
- Vickers Hardness & Roughness Gauges: Verifying heat treatment depths (HRC 52-56) and surface finish (Ra 0.05 µm)
IATF PROTOCOLZero-Defect Quality Control
- IQC (Incoming Control): Spectrometer XRF verification of all raw mold steel lots before machining
- IPQC (In-Process Control): First-piece check on 5-axis CNC & EDM after every major setup change
- FQC (Final QC): 100% critical dimension inspection for core pins, mold inserts, and mating surfaces before packaging
AUDIT DOCUMENTATIONPPAP & FAIR Documentation
- Full Ballooned CAD Drawings: Matched 1:1 with CMM dimensional inspection data
- First Article Inspection Reports (FAIR): Standardized T1 sample validation for EV OEM approvals
- Traceability Records: Mill test certificates (MTC EN 10204 3.1) and heat treatment logs attached to every order
Download Sample Quality Control & Inspection Reports
Review our standard CMM inspection sheet, Material Composition Certificate, and RoHS report templates.
CASE STUDIES
EV and Energy Case Studies
Global EV Battery OEM · Ongoing
Battery connector and high-voltage component tooling
Progressive dies and insert molds for battery connectors and high-voltage components, built to IATF 16949 and PPAP Level 3 documentation requirements.
Global EV Charging & Connector OEM · Multi-year
High-precision connector molds for EV charging systems
Multi-cavity molds for power and signal connectors, with flame-retardant compound processing and wear-resistant HRC 62 tooling.
FREQUENTLY ASKED QUESTIONS
EV & Energy Tooling Fabrication FAQ
Common technical and commercial questions regarding custom mold making, precision insert machining, and OEM qualification for the EV & energy sector.
Utilizing Yasda 5-axis CNCs, Sodick Slow-Wire EDMs, and Makino Mirror EDMs, we achieve tolerances up to ±0.002 mm on critical connector pins and busbar features, with surface roughness down to Ra 0.05 µm.
Prototype molds and Rapid Tooling T1 samples can be delivered in as fast as 12–15 business days. Complex multi-cavity production molds (e.g., high-voltage connector housings, battery-pack tooling) typically require 25–35 business days, including full CMM inspection and Moldflow thermal analysis.
We enforce strict IP protection policies. We execute custom Non-Disclosure Agreements (NDAs) prior to receiving any 3D files. All CAD data (STEP, IGES, X_T) is handled on secure internal servers, and production floor files are fully anonymized to prevent unauthorized access.
Yes. Every EV & energy mold and component order includes complete material mill test certificates (EN 10204 3.1), heat treatment hardness logs, and full CMM dimensional inspection reports with ballooned CAD drawings for PPAP Level 1–3 submissions.
We machine tooling in NAK80, S136, H13 and SKD61 steels — hardened up to HRC 62 for abrasive glass-filled FR compounds — with DLC/TiAlN PVD coatings, plus non-ferrous alloys (7075-T6, Ampco 18) and engineering plastics (PEEK, PA66+GF) per your component spec.
We support all major 3D CAD exchange formats, including STEP (.stp, .step), IGES (.igs), Parasolid (.x_t), SolidWorks (.sldprt), as well as 2D PDF/DWG drawings with geometric dimensioning and tolerancing (GD&T).
Ready to Upgrade Your EV & Energy Mold Precision & Lifespan?
Send us your CAD files today. Our tooling engineers will return a comprehensive DFM review and detailed quote within 2–12 hours.
🔒 100% Confidential | NDA Protected | Instant DFM Assessment
RELATED MOLD COMPONENTS
Recommended Products for EV and Energy
Custom Mold Inserts for HV Connectors
Material: S136 / NAK80 | Surface: Ra 0.05 µm
View Product Specs →
Precision Core Pins & Cavity Inserts
Material: SKD61 / H13 | Tolerance: ±0.002 mm
View Product Specs →
DLC-Coated Ejector Pins
Material: SKD61 | Wear-resistant DLC / TiAlN Coating
View Product Specs →Hot Runner Systems
Multi-cavity up to 64 | Valve-gated for EV volumes
View Product Specs →