Custom Copper CNC Machining Services

High-precision manufacturing for C110, and C145 copper. From rapid prototyping to low-volume production.

Available Copper Grades

Our manufacturing capabilities include 3-axis and 5-axis CNC milling and turning for various copper alloys, including C101 and C145.

Copper C145 (Tellurium Copper)

By adding 0.5% Tellurium, C145 transforms copper’s machinability. It produces short, clean chips rather than long stringy ones, allowing for faster machining speeds and tighter tolerances while retaining ~93% IACS conductivity.

Key Specs:

Purity: ~99.5%
Machinability Rating: 85% (Excellent)
Conductivity: High (Very close to pure copper)
Best For: High-volume screw machine parts, nozzles, complex electrical connectors, plasma torch tips.
Our Tip: “If your part has complex threads or requires deep drilling, C145 will significantly lower your machining costs.

Copper C110 (Electrolytic Tough Pitch – ETP)

C110 is the most widely used copper grade. It offers exceptional electrical conductivity (101% IACS) and thermal properties. However, it is soft and “gummy,” requiring specialized CNC strategies to prevent burrs.

Key Specs:

Purity: 99.90%
Machinability Rating: 20% (Challenging)
Conductivity: Excellent
Best For: Busbars, electrical contacts, gaskets, rivets.
Our Tip: “Great for simple geometries. For complex parts with tiny holes, consider C145 to reduce cost.

Material Properties

Property C145 Tellurium Copper C110 ETP Copper difference
Machinability 85–90% (Ref: Free Cutting Brass = 100%) ~20% C145: Produces short, brittle chips; extends tool life; ideal for complex or high-volume CNC parts.
C110: “Gummy” texture; prone to sticking/galling; produces long stringy chips; lower machining efficiency.
Electrical Conductivity 85–93% IACS 100–101% IACS C110: Best for applications requiring minimal electrical loss.
C145: Sufficient for the majority of general conductive components.
Thermal Conductivity Good (Approx. 355 W/m·K) 394 W/m·K C110: Superior heat dissipation; preferred for high-power thermal management components.
Tensile Strength 350–380 MPa 220–385 MPa (Varies by temper) C145: Offers more consistent mechanical strength and better wear resistance.
C110: Strength depends heavily on hardness state (soft vs. hard).
Elongation 15–50% >35% (Annealed) C110: Higher ductility; superior for cold forming, bending, or deep drawing processes.
Hydrogen Embrittlement Low (Phosphorus deoxidized) Medium C145: Stable during heating or brazing.
C110: Requires caution in high-temperature reducing atmospheres to avoid embrittlement.
Weldability Good for brazing/soldering; Fair for arc welding Excellent C110: Suitable for all welding types and general electrical connections.

In short: Choose C110 for maximum conductivity and simple shapes. Choose C145 for complex CNC parts to reduce machining costs.

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). Shipping terms are typically Ex Works (EXW) or DAP, depending on the agreement.

Start your manufacturing project today

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