Our Machining Projects

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-Custom parts from your drawings, no MOQ.

-End-to-end service: sourcing, machining, finishing & QC.

-Streamlined process = on-time delivery, every time.

CNC Machining of High-Current Copper Terminals for EV & ESS

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Four precision CNC turned copper connector terminals for EV applications, featuring longitudinal slits and a bright finish.

With the rapid growth of the electric vehicle sector, we have seen an increase in demand for high-performance electrical components. We were recently commissioned to manufacture a batch of custom copper connector terminals designed for EV power distribution systems.

The finished copper connector terminals fully satisfied the client’s requirement, This project demonstrates our expertise in custom CNC machining of high-precision copper components for new energy vehicles. From custom CNC machining to final inspection, we deliver reliable that meet the strict demands of automotive electrification.

Four precision CNC machined copper alloy terminals with flat contact surfaces and cylindrical posts for high-current EV power distribution.

High-current copper alloy terminals. These parts feature a precision-milled flat contact area with a central indentation for secure positioning in power distribution units.

We specialize in custom CNC machining of precision components for electric vehicles and energy storage systems. Beyond EV connector terminals, we also manufacture high‑precision pins, high‑current terminals, energy storage terminals, and charging gun terminals.

All parts are produced with stable quality, strict dimensional control, and reliable performance. We maintain efficient production scheduling to ensure on‑time delivery and consistent batch quality for our global customers.

Project Details

Part type: Custom High-Current Connector Terminal / Male Pin Contact

Material: Tellurium Copper C14500

Machining Process: CNC Turning, CNC Milling

Surface Finish: As-Machined

Quantity: 1800 pcs

Lead Time: 55 day

Quality Assurance

We used a coordinate measuring machine (CMM) to inspect critical dimensions, slot positions, and roundness. Ensuring every part met the client’s EV application standards.

Custom CNC Automotive Part Machining

We provide custom CNC machining services for automotive parts across various vehicle models. Using 5-axis machining technology, we manufacture components strictly according to provided drawings. Our process addresses specific adaptation and precision requirements, supporting both vehicle restoration and performance modification projects.

Free Quote & Design Review

We provide custom CNC machining services for low-volume production and Rapid Prototyping for design verification.  Click Here to Upload Your CAD Files

Our Manufacturing Capabilities

5-axis CNC milling machine cutting an aluminum block during the manufacturing process.

Capabilities include 3-Axis, 4-Axis, and 5-Axis CNC Milling, as well as CNC Turning operations. Standard materials processed include Aluminum alloys, Stainless Steel, Titanium, etc. and Engineering Plastics. Available secondary operations include Anodizing, Powder Coating, Bead Blasting, and Laser Engraving.

Capacity supports requirements ranging from single-unit Rapid Prototyping to Low-Volume Production runs (1-1,000+ units).

Factory Quality Assurance

A highly accurate ZEISS Coordinate Measuring Machine (CMM) inspecting the internal dimensions and tight tolerances of a custom CNC machined component.

A standardized Quality Management System (QMS) is applied to all manufacturing orders, regardless of part complexity or production volume. The following inspection stages are mandatory for every CNC machining project:

  • Material Verification: Raw material certification (chemical composition and mechanical properties) is verified upon receipt to ensure compliance with material specifications.

  • First Article Inspection (FAI): The first unit from any production run undergoes a full dimensional report to validate the machining setup and programming before volume processing begins.

  • In-Process Monitoring: Periodic checks are conducted during the machining cycle to monitor tool wear and ensure dimensional consistency is maintained throughout the batch.

  • Final Inspection: Completed components undergo a final dimensional and cosmetic verification using CMM (Coordinate Measuring Machine) and calibrated manual instruments prior to packaging.

Order Fulfillment Process

Finished CNC machined components securely packaged in custom foam inserts for global shipping.

From CAD to part.

Step 1: Upload & Quote

Upload your CAD files (STEP/IGES) to our secure platform. Receive a detailed online CNC quote and lead time estimate within 24 hours.

Step 2: Free DFM Review

Our engineers conduct a Design for Manufacturability (DFM) analysis to optimize your design for rapid machining and reduce costs.

Step 3: Precision Machining

We ensure your custom CNC parts meet strict tolerance requirements.

Step 4: Quality Control

Every part undergoes rigorous inspection before leaving our factory to ensure it matches your specifications perfectly.

Step 5: Fast Delivery

We partner with DHL/FedEx for global express shipping. Get your CNC prototypes delivered to your door in as fast as 7 days.

FAQs About CNC Machining Services

No. We support projects of all sizes, from a single prototype unit to low-volume production runs.

Standard lead times are typically 10–15 business days. Expedited services (Rapid Prototyping) can be completed in as little as 3–5 business days, depending on part complexity and material availability.

In most cases, we source materials from our approved suppliers to ensure quality control. However, we can machine customer-supplied materials for specialized alloys or specific requirements upon engineering review.

Unless otherwise specified, our general tolerance standard is ISO 2768-m (±0.125 mm) for metals and ±0.25 mm for plastics. Precision tolerances ±0.005 mm are achievable but must be explicitly stated in 2D technical drawings.

Our facility can accommodate parts up to 4000 x 1500 x 600 mm for milling and Ø200 mm x 500 mm for turning.

Yes. We can install inserts (e.g., Helicoils, PEM fasteners) and perform basic mechanical assembly of machined components prior to shipment.

To provide an accurate quote, we require a 3D CAD file (STEP, IGES, or X_T format). If the part has threaded holes, tight tolerances, or specific surface finish requirements, a 2D PDF drawing must also be provided.

We take IP protection seriously. All files are stored securely, and we are willing to sign a Non-Disclosure Agreement (NDA) prior to receiving your data.

Yes. We can provide material certificates (COA) and dimensional inspection reports upon request. Please specify this requirement when placing your order.

We ship globally using major carriers (DHL, FedEx, UPS).

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On-Demand CNC Machining

  • Secure file upload. NDA compliant.

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No Minimum Order Quantity (MOQ). Strict quality control. Fast global shipping.