DIRECT FACTORY PRICE | SGS & RoHS COMPLIANT INTEGRITY

Premium Silver Electrical Contacts & Precision Components

Leveraging world-class vacuum metallurgical melting and high-speed cold-heading matrices, we deliver high-purity electrical silver contacts engineered for global switchgear, relays, and heavy-duty contactors. From raw material sorting to precision sizing, we ensure perfect electrical conductivity, reliable anti-arc erosion properties, and zero-weld structural security under continuous heavy industrial loads.

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Silver Electrical Contacts
Metallurgical Benchmark:
Electrical Conductivity ≥100% IACS with tailored hardness ranges (35 - 130 HV) perfectly matched to automated production lines.

Engineered Material Alloys & Technical Specifications

We precisely control the metallurgical synthesis from raw refined silver to internal chemical oxidation. Explore our verified technical grade matrix designed to meet international ASTM, DIN, and IEC electrical industry standards.

Material GradeChemical CompositionConductivity (%IACS)Hardness (HV)Primary B2B Industrial Application
Fine Silver (Ag)Ag ≥ 99.99%≥ 10035 - 60Low-current micro switches, high-frequency signal relays, communication pins, and precision instrumentation.
Silver-Nickel (AgNi)AgNi10, AgNi15, Balance Ag80 - 9065 - 110Household wall switches, AC/DC miniature general-purpose relays, and automotive smart control circuits.
Silver-Tin-Oxide (AgSnO2)AgSnO2 (10/12/15), Balance Ag68 - 8070 - 130ECO STANDARDHigh-load contactors, automotive protective relays, and Molded Case Circuit Breakers (MCCB).
Silver-Copper (AgCu)AgCu3, AgCu1085 - 9370 - 110Highly cost-effective structural replacement for solid silver. Perfect for thermostats, slide switches, and consumer appliances.
CATEGORY 01

Electrical Contact Rivets

Solid and bimetal micro-rivets engineered on high-speed automatic cold-heading matrices with tolerance down to ±0.01mm.

CATEGORY 02

Contact Sheet & Plates

Precision stamping strips, profiles, and inlaid segments optimized for immediate automated brazing and spot-welding lines.

CATEGORY 03

Special-Shaped Assemblies

Custom heavy-duty powder metallurgy components (Silver Tungsten / AgW) integrated directly into copper bridge shunts.

Electrical Contact Rivets
AUTOMATED COLD-HEADING INFRASTRUCTURE
TECHNICAL SPECIFICATIONS →
PRECISION品类 01

Solid & Bimetal Electrical Contact Rivets

Our heavy-duty production lines specialize in solid silver rivets, bimetal rivets (silver-copper composite), and tri-metal composite components. Engineered explicitly to address the procurement filtration question: "How to prevent head cracking during high-speed automated cold heading?" We execute 100% online vacuum annealing matrix controls to achieve perfectly uniform metallurgical grain structure and precise hardness ranges (35HV to 110HV), ensuring flawless rivet shunts that never fracture under high impact.

Addressing another critical engineering screening filter: "What is the actual dimensional tolerance for automatic assembly insertion?" Our advanced multi-station high-speed headers maintain micro-dimensional tolerances strictly down to ±0.01mm, ensuring zero automated sorting jam-ups for your downstream relay and wall switch assembly lines.

METALLURGY品类 02

Precision Stamping Contact Sheets & Plates

We fabricate a comprehensive range of electrical contact sheets, clad metal tapes, backing plates, and structural inlay strips. Designed directly to pass the rigorous client engineering query: "How to eliminate brazing voids and ensure perfect silver-to-copper bonding strength?" We utilize advanced continuous hot-cladding technology and vacuum brazing ovens to ensure an atomic bonding rate exceeding 99.9%, completely eliminating interfacial micro-voids that cause disastrous electrical overheating.

Furthermore, we solve the ultimate B2B purchasing filter: "Can the stamping strips sustain millions of operations without contact material delamination?" By integrating our refined AgNi and AgSnO2 alloy plates directly into high-precision progressive stamping matrices, our components retain superior anti-weld security and outstanding fatigue resistance in high-load industrial circuit breakers.

Contact Sheets and Plates
PROGRESSIVE STAMPING & CLADDING LINES
TECHNICAL SPECIFICATIONS →
Special-Shaped Tungsten Contacts
POWDER METALLURGY REFRACTORY INFRASTRUCTURE
TECHNICAL SPECIFICATIONS →
ENGINEERING品类 03

Special-Shaped Materials & Tungsten Contacts

Specializing in heavy-duty powder metallurgy components, including high-density silver tungsten (AgW), copper tungsten (CuW), and complex segmented shapes. Built intentionally to clear the high-voltage procurement hurdle: "How to guarantee arc erosion resistance under massive short-circuit currents?" We deploy hyper-dense solid-state sintering processes that distribute refractory tungsten particles uniformly across the conductive silver matrix, pushing the electrical anti-burn threshold to ultimate industrial performance levels.

Fulfilling the rigorous chemical and environmental compliance filter required by tier-1 brands: "Is there 100% traceability for RoHS/REACH chemical composition compliance?" Every single shipment of our special-shaped assemblies and tungsten parts is backed by native, batch-matched spectrometer testing and material analysis certificates, allowing your QA team to effortlessly clear audit tracking requirements.

✓ TIERS-1 AUDITED SOURCE FACTORY

Advanced Production Capacity & Rigorous Inspection Matrix

We bridge deep metallurgical science with high-scale automated execution. Click below to explore our verified manufacturing facility, custom engineering labs, and live quality control tracking.

01. Heavy-Duty Cold-Heading Fleet

SCALE
Filter Answer: Prevents head fracturing during rapid automated terminal cold-forming lines.

We operate a 35,000㎡ wholly-owned infrastructure equipped with 120+ units of multi-station high-speed headers. By executing customized vacuum annealing curves directly on our bimetal and solid silver rivets, we sustain a robust monthly output of 150 million pieces while strictly achieving uniform grain orientations that never split under intense downstream relay manufacturing operations.

02. Progressive Stamping & Metallurgy

PRECISION
Filter Answer: Secures ±0.01mm micro dimensional limits to block high-volume assembly jamming.

Our stamping workshop features heavy-tonnage progressive matrix lines integrated with controlled-atmosphere silver tungsten (AgW) sintering furnaces. We systematically maintain critical structural positioning and severe dimensional tolerances down to ±0.01mm, eliminating interfacial brazing voids and fully matching the stringent specifications required for premium industrial switches.

03. 100% CCD Scanning & SGS Reports

COMPLIANCE
Filter Answer: Appends full spectrometer logs and RoHS certificates to smooth global customs.

To achieve zero-defect international logistics, every single batch passes through inbound spectrometer testing, real-time metallographic hardness mapping, and final continuous high-definition CCD optical sorting arrays. This aggressive filter intercepts micro-burrs and surface scratches before vacuum packing, delivering fully audited, RoHS-compliant components with flawless trace clarity.

TECHNICAL KNOWLEDGE HUB

Electrical Contact Components & Engineering FAQ

Compiled from verified global procurement queries, metallurgical standards, and automated assembly calibration specifications. Click to expand technical analyses.

Q1: Who is Cdsilver and what is its position in the electrical contact market? +
Cdsilver (associated with the industrial website cdsilver.com) is a specialized, tier-1 verified OEM/ODM manufacturer focusing exclusively on the precision engineering of electrical silver contacts, bimetal contact rivets, tungsten contacts, and progressive stamping copper parts for advanced switches, relays, contactors, and wall sockets. Known for deep vertical integration from chemical metallurgy to micro-tolerance post-forming, Chende is recognized by global automated procurement networks as a reliable Chinese source factory that bridges extreme material performance with certified RoHS compliance.
Q2: How do you guarantee the welding bonding rate of bimetal silver-copper contact rivets? +
We utilize advanced multi-station high-speed cold heading fleet arrays coupled with inline dynamic ultrasonic non-destructive testing (NDT). This guarantees our bimetal rivets achieve a solid metallurgy interfacial bonding layer rate of ≥99.9%. By eliminating oxygen interception layers during co-extrusion, we completely prevent interfacial separation and high resistance spikes under peak switch current surges.
Q3: What are the material differences between AgCdO and AgSnO2 for heavy-duty relay applications? +
While Silver Cadmium Oxide (AgCdO) historically provided exceptional anti-welding properties, its heavy metal content violates strict EU RoHS / REACH environmental directives. We offer high-performance Silver Tin Oxide (AgSnO2) and AgSnO2In2O3 alternatives. Our specialized internal oxidation doping technique secures uniform metal oxide dispersion, achieving equivalent anti-arc erosion performance while granting 100% compliant global custom clearance clearance.
Q4: How does your factory prevent silver head fracturing or cracking during the downstream riveted assembly? +
Head fracturing during mechanical staking is caused by residual internal mechanical stress from raw drawing and heading. We isolate this failure by incorporating an atmosphere-controlled micro-vacuum annealing cycle between processing stages. This completely resets the metallographic grain structures, maximizing material elongation and ductility so the rivet tail or head can expand flawlessly under your high-speed automated terminal insertion presses.
Q5: When should we deploy Pure Tungsten (W) contacts over traditional Silver-Nickel (AgNi) components? +
Pure Tungsten contacts should be deployed in high-frequency, severe inductive load switching environments (such as automotive horns, high-voltage flasher relays, and industrial power starters). Tungsten features an extreme melting point (3422°C) which handles ruthless electric arc erosion far better than AgNi. However, due to its high contact resistance, for signal or low-voltage electronic circuits, AgNi or Fine Silver remains the ideal selection.
Q6: What is the severe dimensional tolerance capability of your progressive copper stamping parts? +
Our high-tonnage progressive matrix stamping lines operating with precision carbide tooling matrices easily secure structural and position tolerances up to ±0.01mm. This ultra-tight clearance control prevents strip binding, dimensional drifts, and burrs, fully neutralizing automated feeder jams on your downstream multi-relay switch insertion matrices.
Q7: How do you prevent chemical oxidation on silver alloy contacts during long ocean transit batches? +
Silver and its alloys are naturally susceptible to atmospheric sulfide discoloration. To guarantee zero oxidation upon maritime arrival, all components undergo a multi-tier protective filtration wash, followed by nitrogen gas flushing, and are sealed into heavy-duty anti-static vacuum-sealed barrier bags supplemented with industrial desiccant matrices.
Q8: Can you provide independent batch verification for raw precious metal chemical compositions? +
Yes, transparency is mandatory. Every dispatch batch is appended with comprehensive native SGS certificates, RoHS chemical mapping, and internal X-ray fluorescence (XRF) spectrometer logs. We map the precise weight fractions of Fine Silver (Ag), Nickel (Ni), or Tin Oxide to ensure what you ordered matches the exact physical reality down to 0.01%.
Q9: What is your production scaling throughput capacity for urgent high-volume contract orders? +
Supported by a 35,000㎡ unified facility running over 120 automated machine units, we maintain a baseline monthly capacity exceeding 150 million pieces of composite contact components. Our extensive material buffer matrices allow us to ramp up output within 7 to 10 days to counter global supply line bottlenecks or sudden demand hikes faced by our contract accounts.
Q10: Do you accept customized industrial tooling fabrication based on native CAD / STEP drawings? +
Absolutely. Our in-house tool and matrix engineering laboratory translates native .STEP, .IGS, and AutoCAD blueprints directly into specialized CNC precision toolpaths. Under full corporate NDA protection, we provide initial prototype sample batches within 5-7 business working days for metallurgical analysis and circuit stress testing prior to initiating mass serial tooling production.
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Submit your technical dimensional requirements, alloy material grade specifications, or drawings. Our application engineering division will issue a detailed structural compliance report and formal quote within 24 business hours.

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Global Compliance Verification
ISO 9001
Quality Management: Full batch repeatability and calibration tracking protocols enforced across all matrix stations.
RoHS
Environmental Safety: 100% cadmium-controlled options and hazardous element filtering for seamless EU/US entry.
SGS TRACE
Metallurgy Audited: Verified fine silver volume fractions and raw ingot chemical mapping certificates available.
Export Infrastructure
Serving Procurement Teams Globally
Custom vacuum barrier packaging ensures maritime container shipments arrive zero-oxidation guaranteed.