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Sinbo Precision Mechanical Co., Ltd.
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Copper Alloy Conductive Block Custom Manufacturing High Conductivity Wear Resistant cnc machining china precision CNC Machining Service

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Sinbo Precision Mechanical Co., Ltd.

City: dongguan

Province/State:guangdong

Country/Region:china

Tel:86-769-83391025-8005

Contact Person:
Mrs.Yang View Contact Details

Copper Alloy Conductive Block Custom Manufacturing High Conductivity Wear Resistant cnc machining china precision CNC Machining Service

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Minimum Order Quantity 100
Price 10-20
Payment Terms L/C,D/A,D/P
Supply Ability 10000
Delivery Time 5-9
Test Equipment Japan Keyence IM7000
Material Capabilities Aluminum
Diameter 0.325inch, 0.13inch
Oem Service Acceptable
Size Customized
Quality 100% Inspection
Coaxiality ±0.01mm
Processing CNC machining,CNC milling,CNC turning
Service OEM/ODM/Customized/Design
Design Software Pro/E, Solidworks, UG
Type Drilling,Other Machining Services
Delivery Port Shanghai
Parallelism Tolerance ±0.02mm
Warranty 1 Year
Casting Method Die Casting
Usage Industrial
Application Machinery
Resistance Corrosion resistant
Original Hardness HRC35-42
Precision 0.001mm
The Tolerance + -0.01mm
Casting Process Gravity Casting
Machining Type Milling, Grinding, Polishing
Cavity Single
Salty Spary 72h
Detailed Product Description
Product Description

Copper alloy conductive blocks are critical components for current transmission, sliding contact, and wear-resistant applications in electrical and industrial equipment. We use high-performance copper alloys such as chromium copper (e.g., C70600) and beryllium copper, processed via precision CNC machining, to ensure high conductivity, wear resistance, and longevity. These blocks are widely applied in rail transit pantographs, industrial motors, and welding equipment, capable of withstanding high-current loads and mechanical abrasion. As a specialized precision machining supplier, we offer end-to-end services from material selection to finished product processing, meeting strict requirements for accuracy and reliability.

Features
  1. High Conductivity: Conductivity up to 18-90% IACS (e.g., CuMg0.4 alloy), enabling efficient current transfer.
  2. Excellent Wear Resistance: Hardness of 36-42 HRC with iron powder additives or chromium copper, extending service life beyond 20,000 km.
  3. Arc Erosion Resistance: Rare-earth high-entropy alloy additions enhance arc resistance, reducing molten pool splatter for high-frequency switching.
  4. Self-Lubricating Properties: Fine graphite powder integration lowers friction coefficients, ideal for high-speed sliding contacts.
  5. High Strength and Heat Tolerance: Tensile strength ≥250-1000 MPa, with 95% conductivity retention at 150℃.
  6. Precision Machining Compatibility: CNC customization achieves tolerances of ±0.005 mm and surface roughness of Ra 0.05 μm.
Technical Parameters Table
ParameterTypical Value/RangeStandard
MaterialChromium Copper, Beryllium Copper, CuMg0.4ASTM B103
Conductivity18-90% IACSIEC 60468
Hardness36-42 HRC (Chromium Copper)ASTM E18
Tensile Strength≥250-1000 MPaASTM E8
Density8.3-8.9 g/cm³ASTM B311
Operating Temperature-50℃ to +150℃MIL-STD-810
Thermal Conductivity≥105 W/m·K (20℃)ASTM E1225
Arc Resistance≥100,000 cycles (no significant erosion)IEC 61621
Applications
  • Rail Transit: Pantograph conductive blocks with high wear/arc resistance for stable power collection.
  • Industrial Motors: Rotor bars and end rings for traction motors, replacing pure copper to improve conductivity and weldability.
  • Electronics: Micro-motor brushes and battery connectors using beryllium copper strips for precision contacts.
  • Energy & Welding: Welding electrodes and die-casting machine punches resistant to high temperatures and impact.
  • Precision Instruments: Sensor elastic components and sliding contacts, with CuMg0.4 ensuring 98% shape recovery.
Customization Services

We provide full customization:

  • Material Selection: Recommend chromium copper, beryllium copper, or phosphor copper based on conductivity/strength needs.
  • Flexible Dimensions: Diameter Φ0.1 mm to 200 mm, thickness from 0.01 mm, supporting ultra-thin foils via 70% cold working.
  • Process Optimization: Powder metallurgy or melting techniques control grain size to 20-30 μm for uniformity.
  • Surface Treatment: Bright annealing or anti-oxidation coatings for clean, mark-free surfaces.
  • Rapid Delivery: Prototypes in 7 days, bulk orders in 15 days, with material certificates and SGS reports.
Support and Services
  • Technical Consultation: Free material comparisons and operational analysis to optimize design life.
  • Quality Assurance: Full-process monitoring of sintering density (8-8.2 g/cm³) and resistivity, 100% factory inspection.
  • After-Sales Tracking: Periodic maintenance guidance and troubleshooting for installation/wear issues.
  • Global Logistics: Ample inventory support for trial to large-scale orders.
Product Tags: Copper alloy conductive block CNC machining   High conductivity wear resistant CNC parts   Custom precision CNC mechanical parts  
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