Copper Machined Parts, Copper CNC Machined Parts

Copper Machined Parts & Copper CNC Machined Components by Conex Metals

Conex Metals manufactures precision Copper Machined Parts and Copper CNC Machined Parts engineered for high-conductivity, high-reliability applications across electrical OEM, power utility, EPC, and industrial distribution sectors. Produced from commercially pure copper grades (C10100, C10200, C11000) and select copper alloys, these components are machined to tight dimensional tolerances using advanced CNC turning, milling, and multi-axis machining centres. All parts are traceable to international material standards including ASTM B187, BS EN 13601, IS 613, and DIN 17672. Indicative price: US$ 19.90/Kg (subject to order quantity, grade, and configuration).

Product Overview

1. Copper CNC Turned Parts & Precision Turned Components

Single-point and multi-point CNC turning produces copper shafts, bushings, stepped pins, contact pins, terminal bodies, nozzles, and connector housings with surface finishes down to Ra 0.8 µm. Applicable for copper bus connector bodies, earthing electrode tips, current transformer cores, vacuum interrupter contacts, circuit breaker contact assemblies, motor terminal bodies, grounding clamps, and transformer tap connector ends. Material grades: ETP copper C11000, OFHC C10200, OFE C10100.

2. Copper CNC Milled Parts & Machined Plates

Vertical and horizontal CNC milling operations produce copper flat plates, flanged components, key-slot fittings, copper electrode plates, EDM electrode blanks, heat sink plates, copper bus plate adapters, shorting bars, transformer clamping plates, and contactor bridge components. Slot milling, face milling, and pocketing operations are performed to DIN tolerances IT7–IT9 with parallelism within 0.02 mm.

3. Copper Threaded Parts & Fastener-Grade Components

CNC threading produces copper threaded rods, stud bolts, hex-head bolts, terminal screws, binding screws, earthing studs, neutral link studs, cable lug bolts, battery terminal bolts, and compression lug connectors. Thread standards: M4–M64 metric (DIN 13), BSP, UNC, UNF, NPT. Material: C11000 ETP copper, min. 99.90% Cu.

4. Copper Multi-Axis Machined Components

4-axis and 5-axis CNC machining centres produce complex geometries including copper rotor bars, commutator segments, waveguide flanges, RF cavity components, magnetron anodes, plasma torch electrodes, induction heating conductors, butt welding electrodes, and resistance welding tips. Tolerances to ±0.01 mm achievable on critical bore and OD dimensions.

5. Copper Bored & Drilled Parts

Deep-hole drilling, gun drilling, and precision boring produce copper hydraulic fittings, cooling tube adapters, water-cooled electrode holders, induction coil inserts, pressure vessel nozzles, OFHC copper vacuum components, and degassing port bodies. Bore concentricity maintained within 0.015 mm TIR.

6. Copper Knurled & Specialty Surface Parts

Knurling, broaching, spline cutting, and gear hobbing are applied to copper press-fit inserts, copper knurled inserts for PCB and plastic assemblies, copper sleeve bearings, copper worm gear blanks, splined copper shafts, hex socket inserts, and torque-transfer copper couplings used in precision instrumentation and power connector assemblies.

7. Copper Forged & Machined Combination Parts

Hot-forged copper blanks are finish-machined to produce copper cable socket bodies, compression connectors, pad-type terminals, switchgear contact blocks, bushing well connectors, cable end fittings, and ground fault interrupter contact assemblies. Combined forging+machining reduces internal porosity and improves electrical conductivity vs. cast alternatives.

8. Copper Electrodes & Contact Parts

Precision-machined copper electrodes include EDM electrodes, resistance welding electrodes (cap electrodes, flat-face electrodes, offset tips), spot welding tips, seam welding wheels, projection welding dies, plasma cutting electrodes, arc furnace electrodes, and electrolytic refining anode hangers. IACS conductivity ≥ 100% maintained on OFHC and ETP grades.

Key Features

• High-purity copper grades: OFHC (C10200), OFE (C10100), ETP (C11000) – 99.90–99.99% Cu
• CNC dimensional tolerances: ±0.01 mm (precision grade), ±0.05 mm (standard grade)
• Surface finish: Ra 0.4–3.2 µm as machined; electropolished or plated on request
• Electrical conductivity: ≥ 58 MS/m (100% IACS) on C10100/C10200 grades
• Fully traceable: heat certificate, material test report (MTR), EN 10204 Type 3.1 available
• Custom geometry: manufactured to buyer’s 2D drawing or 3D STEP/IGES files
• Surface treatments: tin plating, silver plating, nickel plating, bare/bright
• Volume capability: prototypes to high-volume production runs

Precision & Tolerancing

All Conex Metals copper machined parts are manufactured under ISO 2768 general tolerance standard (Fine class for critical dimensions). CNC machining centres are calibrated per ISO 9283. First Article Inspection (FAI) is available with full dimensional report per AS9102 / PPAP documentation for automotive and aerospace crossover applications. Bore and thread gauging is performed with calibrated Mitutoyo and Tesa instruments traceable to national metrology standards.

Material Purity & Conductivity

Conex Metals sources copper rod, bar, and plate exclusively from certified smelters and rolled product manufacturers. ETP copper C11000 (min. 99.90% Cu) is used for general electrical parts. OFHC C10200 (99.95% Cu, oxygen < 10 ppm) and OFE C10100 (99.99% Cu) are used for vacuum, RF, and ultra-high-conductivity applications. Each lot is accompanied by a chemical analysis certificate confirming Cu, Ag, O₂, Pb, and residual element content.

Surface Treatments Available

Post-machining surface treatments include electrolytic tin plating (3–10 µm, per IEC 60068-2-58), silver plating (5–25 µm, per ASTM B700), nickel plating (5–15 µm), electrolytic copper plating, bare bright (passivated), chemical tin plating, and hot-dip tinning. Plating adhesion and thickness are verified by X-ray fluorescence (XRF) measurement and pull-off adhesion testing.

Custom Engineering & Prototyping

Conex Metals accepts DXF, DWG, STEP, IGES, and PDF drawing submissions for custom copper machined parts. Lead times: 7–14 business days for prototypes (1–50 pcs); 21–35 days for production batches (500+ pcs). Design for Manufacturability (DFM) review provided at no cost for orders above 100 pcs. Reverse engineering from sample parts is available on request.

Packaging & Export Compliance

Copper machined parts are individually wrapped in VCI (Vapour Corrosion Inhibitor) poly film, packed in foam-lined cartons, and placed in export-grade wooden cases or pallet boxes for sea, air, or courier shipment. Gross weight and dimensions per package comply with ISPM-15 phytosanitary standards. HS Code: 7419.80 (other articles of copper). Export documentation: commercial invoice, packing list, COO, material test report, and Fumigation Certificate where required.

Quality Documentation

Standard documentation package includes: EN 10204 Type 2.2 test report (standard), EN 10204 Type 3.1 inspection certificate (on request), dimensional inspection report, hardness test report (Vickers HV5), surface roughness report, and plating thickness report. Third-party inspection by SGS, Bureau Veritas, or Intertek is facilitated upon buyer request.

Technical Specifications

Dimensional Capabilities

Copper Material Grades & Mechanical Properties

International Material Grade Equivalents

Product Types & Variants

Applications by Industry

Manufacturing Process

Conex Metals follows a controlled, documented manufacturing sequence for all copper machined parts:

Quality Standards & Certifications

Why Choose Conex Metals for Copper Machined Parts?

• Precision Engineering: Multi-axis CNC machining centres with tolerances to ±0.01 mm and CMM-verified dimensional reports.
• Grade Flexibility: Full range from C10100 OFE to C11000 ETP to C14500 free-machining copper – single supplier for all grades.
• Certified Quality: ISO 9001:2015 QMS; EN 10204 Type 3.1 material certificates available; third-party inspection facilitated.
• Fast Turnaround: Prototype delivery in 7–14 days; production batches in 21–35 days; expedited options available.
• Global Export Experience: Supplying to 40+ countries; export documentation, LC, and SWIFT payment facilitation available.
• Competitive Pricing: US$ 19.90/Kg indicative rate with quantity-based discounting for OEM and long-term contracts.
• Full Traceability: Heat-numbered raw material, process records, and QC records retained for 10 years.
• Engineering Support: DFM review, material selection advice, and cross-referencing of international standards at no charge.

Frequently Asked Questions (FAQ)

1. What is the minimum order quantity (MOQ) for copper CNC machined parts?

The standard MOQ is 50 pieces per part number for CNC turned parts and 10 pieces for milled components. Prototype quantities (1–10 pcs) are accepted with a small-batch tooling surcharge. Contact Conex Metals for volume pricing above 500 kg.

2. Can Conex Metals machine parts from customer-supplied copper material?

Yes. Conex Metals offers toll/contract machining services. Customer-supplied copper rod, bar, or plate must be accompanied by a material test report. An additional incoming inspection fee applies. Minimum supply quantity of material is 20 kg per grade.

3. What copper grades are available for CNC machining?

Available grades include C10100 (OFE), C10200 (OFHC), C11000 (ETP), C12200 (DHP), C14500 (free-machining tellurium copper), CuCrZr (chromium zirconium copper for high-temperature applications), and CuBe2 (beryllium copper for non-sparking / spring applications). Not all grades are stocked – confirm availability at order placement.

4. What surface finishes are available on copper machined parts?

Standard surface finish is as-machined (bare copper, Ra 1.6–3.2 µm). Optional finishes include bright electropolishing, tin plating (electrolytic 3–25 µm per IEC 60068), silver plating (5–25 µm per ASTM B700), nickel plating (5–15 µm), and passivation. Specify surface finish requirements on the drawing or purchase order.

5. How do I submit a drawing for quotation?

Email 2D drawings (PDF/DXF/DWG) or 3D CAD files (STEP/IGES) to Conex Metals with the required quantity, material grade, and surface treatment. A quotation is returned within 24–48 business hours. For urgent RFQs, contact the sales team directly via phone or WhatsApp.

6. What is the price of copper machined parts?

The indicative rate is US$ 19.90/Kg, subject to copper LME price movements, order quantity, part complexity, machining time, and surface treatment. Volume orders above 500 kg qualify for preferential pricing. Request a formal quotation with your drawing for an accurate landed cost.

7. Do copper CNC machined parts from Conex Metals comply with RoHS and REACH?

Yes. ETP (C11000) and OFHC (C10200) copper grades used by Conex Metals are RoHS 2011/65/EU compliant and REACH (EC 1907/2006) compliant. Compliance declarations are available upon request. Grades containing beryllium (CuBe2) require special handling declarations under REACH SVHC.

8. What countries does Conex Metals export copper machined parts to?

Conex Metals exports to over 40 countries including USA, UK, Germany, France, UAE, Saudi Arabia, Nigeria, Kenya, Australia, Singapore, Malaysia, Brazil, and Mexico. Shipment is via sea (FCL/LCL), air freight, or express courier. Payment terms: T/T, LC at sight, DP, and DA for established accounts.

9. What is the lead time for large production orders?

Standard production lead time is 21–35 business days for orders up to 5,000 pcs. For orders exceeding 10,000 pcs or 2,000 kg, lead time is 45–60 business days. Conex Metals maintains buffer stock of standard copper rod grades to reduce lead time for repeat orders.

10. Can Conex Metals provide copper machined parts with silver or tin plating for switchgear applications?

Yes. Switchgear-grade copper contact parts with silver plating (typically 10–25 µm per IEC 60068-2-20 and BS EN 60947) are a standard offering. The silver plating is applied to machined copper substrates after degreasing and copper strike plating. Plating thickness is verified by XRF and reported in the quality documentation package.

Equivalent Terms in Other Languages

Related Products & Internal Links

• Copper Busbars & Copper Bus Bars
• Copper Gaskets & Copper Sealing Gaskets
• Copper Grounding Bars & Copper Multiple Connectors
• Copper Inserts & Copper Threaded Inserts
• Copper Milled Parts & Copper Turned Components
• Copper TRansformer spade connectors– High quality Copper transformer spades, transformer connectors
• Copper Connector Bodies – compression lugs, cable end fittings, terminal connectors
• Copper Threaded Rod & Studs – earthing studs, neutral link studs, binding posts

Get a Quote for Copper CNC Machined Parts

Indicative Price: US$ 19.90/Kg | Custom quotation based on drawing, quantity & grade.

Submit your drawing or RFQ to Conex Metals today. Our engineering team will review your requirements and respond within 24–48 business hours with a competitive, all-inclusive quotation.

• Email your drawing (PDF/STEP/DXF) to our technical sales team
• Specify: material grade, quantity, surface finish, delivery port
• Request EN 10204 Type 3.1 material certificate if required
• Ask about volume pricing for orders above 500 kg

Conex Metals – Precision Copper Machined Parts for Industrial & Electrical Applications Worldwide.