Products Description

The Electrical Contacts with Big Head and Small Foot are highly specialized contact components designed for use in precision electrical switching systems where compact base structure and broad contact surface are critical for electrical efficiency, thermal management, and long service life. Our product line includes Special Bimetal Silver Contact, Electrical Contacts with Cone Angle, Thick Head Bimetal Contact, and Allotype Solid Copper Contact Rivet, all of which can be manufactured with exacting tolerances and customized geometries to meet the specific functional demands of a wide range of electrical devices.

Advantages of Bimetallic Contact Materials

Excellent Electrical Conductivity

The bimetallic materials used in our contacts combine the high electrical conductivity of silver with the conductivity of other metals. Silver, renowned for its superior electrical conductivity, ensures minimal resistance during current transmission, reducing energy loss and heat generation.

Good Thermal Stability

Bimetallic materials maintain stability under high-temperature conditions. The combination of silver and other high-temperature-resistant metals prevents deformation or excessive resistance changes caused by heat.

Strong Wear Resistance

The unique bimetallic structure enhances the wear resistance of the contacts. During repeated circuit connection and disconnection processes, the contacts withstand electrical arc erosion and mechanical friction.

Corrosion Resistance

Bimetallic materials exhibit strong resistance to oxidation and corrosion. In various environmental conditions, the contacts remain unaffected by oxidation or corrosion, ensuring stable electrical conductivity and connection reliability.

Good Quality Material for Electrical Contacts Big Head Small Foot

We Supply Silver Contacts with Special sizes and Special technologies

Our core capability is delivering contacts that transcend standard off-the-shelf dimensions and conventional manufacturing techniques. This encompasses:

Special Size: Producing contacts with non-standard diameters, head thicknesses, foot diameters/lengths, cone angles, and overall geometries tailored to fit unique switch designs or performance requirements unavailable from generic suppliers.

Special Technology: Employing advanced and proprietary processes, including:

Precision Bimetal Bonding	Mastering techniques like high-pressure explosive welding, diffusion bonding, or specialized furnace brazing to create flawless, high-strength, low-resistance interfaces between dissimilar metals (Ag alloy head to Cu foot).
Complex Head Profiling	Precisely forming cone angles, radii, flats, grooves, or other intricate surface features on the contact face using sophisticated coining or machining processes integrated into stamping.
Controlled Thick-Head Formation	Ensuring precise and consistent precious metal layer thickness, even in demanding profiles, through optimized preform design and bonding/forming processes.
Advanced Material Processing	Utilizing specialized silver alloy formulations, grain structure control, and heat treatments to enhance properties like hardness, arc erosion resistance, and anti-welding characteristics.
Micro-Precision Stamping & Forming	Manufacturing "Small Foot" features and complex rivet shapes with extreme dimensional accuracy and surface finish using high-precision progressive dies in controlled environments.

We Supply Silver Contacts with Special Size and Special Technology

Actual Product Applications

Electrical Switchgear

In switchgear such as circuit breakers and contactors, our electrical contacts play a crucial role. Special Bimetal Silver Contacts and Thick Head Bimetal Contacts can withstand the impact of high currents during switching operations and resist electrical arc erosion, ensuring the switchgear's reliable operation and long service life. Electrical Contacts with Cone Angle provide stable contact pressure in switchgear, preventing contact loosening or poor connections caused by vibrations or other factors.

Automotive Electrical Systems

Automotive electrical systems contain numerous electrical contacts, such as those in starters, generators, and relays. Our Allotype Solid Copper Contact Rivets and Special Size Silver Contacts are widely used in these systems. They ensure stable current transmission and reliable circuit connections, supporting the normal operation of automotive electrical equipment and enhancing vehicle safety and performance.

Industrial Control Equipment

In industrial control equipment like PLCs and motor drives, electrical contacts are key components for signal transmission and control. Our customized electrical contacts, with their high precision and reliability, meet the stringent requirements of industrial control equipment. They ensure accurate signal transmission and stable equipment operation, improving production efficiency and quality in industrial settings.

Home Appliances

Home appliances such as air conditioners, washing machines, and refrigerators rely on electrical contacts for power transmission and control. Our electrical contacts, with their excellent electrical conductivity and reliability, provide safe and stable electrical connections for home appliances, extending their service life and ensuring user safety and convenience.

Application of Electrical Contacts Big Head Small Foot