Electrical relay contact rivets

We manufacture relay contact rivets for different relay loads and switching requirements. The contact rivet is the working part of the relay contact system, and its material, size and contact surface need to match the electrical conditions of the finished relay.

Our relay contact materials include Ag, FAg, AgNi, AgCdO, AgSnO₂ and AgSnO₂In₂O₃. We manufacture according to customer drawings, approved material grades and existing relay test requirements.

For relay manufacturers, we can produce both standard contact dimensions and customized rivets for new relay designs or replacement projects.

Relay contacts do not work under the same electrical conditions.

As the relay load increases, the contact surface is exposed to different levels of electrical arc, heat, material transfer and welding risk. This is why the contact size and alloy used in a low-current relay may be different from those used in a medium- or high-power relay.

For lower-power relay applications, Ag, FAg and AgNi materials may be used depending on the original relay design.

For medium-power relay contacts, AgNi, AgCdO and AgSnO₂ materials can be produced according to the specified load and material standard.

For higher-load relay switching, AgSnO₂ and AgSnO₂In₂O₃ are available where the original relay design requires silver oxide contact materials.

We normally follow the customer's approved contact specification when the relay has already passed electrical life testing.

Rated current is an important reference, but it is not the only factor we consider when producing a relay contact.

The same current rating can create different contact conditions depending on whether the relay switches a resistive load, motor, solenoid, lamp or other inductive load. AC and DC switching can also produce different arc conditions.

When a customer is developing a new relay contact, useful information includes the rated voltage and current, making and breaking current, AC or DC load, inrush current, switching frequency and required electrical life.

This information helps us confirm whether the existing contact material and dimensions should be maintained or adjusted before sample production.

We manufacture relay rivets according to the dimensions shown on the customer's contact drawing.

The main dimensions normally include head diameter, head thickness, shank diameter, shank length and contact surface profile.

For composite relay contact rivets, the silver alloy working section can be combined with a copper base to reduce the use of precious metal in the non-working part of the contact.

Solid silver alloy rivets can also be produced when the relay design requires a single contact material throughout the part.

The choice between solid and composite construction depends on the drawing, riveting method, relay load and existing product design.

Relay contact rivets are often used in automatic feeding and riveting processes, so dimensional consistency is important during batch production.

We control the rivet geometry according to the critical dimensions shown on the customer's drawing, especially the shank dimensions and contact head profile that affect feeding, positioning and riveting.

For parts used on automatic assembly equipment, customers can mark the critical tolerances directly on the drawing. We can review these requirements before production.

We are a contact rivet manufacturer, so most relay contact projects can be produced according to the customer's existing drawing or sample rather than being limited to one standard size.

For an existing relay project, we can manufacture according to the specified alloy and dimensions.

For a new contact project, please provide the relay type, contact material, drawing, load information and required quantity. If the original material is not confirmed, a physical contact sample can also be used as a reference before material confirmation and sample production.

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