CAg INDUSTRIES

Powering Rail with Precision
Your Journey Our Excellence
Sparkinng Performance Ensuring Safety

Manufacturers of Silver Impregrated Graphite Contact

Certified by

ISO 14001-2015, ISO 9001-2015

Why choose us?

Quality
Assurance
Industry
Expertise
Manufacturing Excellence
Customer
Satisfaction
Global
Reach
Customer
Support

Our Story

CAg Industries laid down on strong foundation, under Mr. B D Mohta - Technical Consultant/ Expert in SIG contact for last 40 years

The firm is founded by two Indian Women Residents, Mrs. Shree Mohta & Mrs. Parineeta Binani. Mrs. Parineeta Binani, responsible for company operations having past experience in operations of manufacturing SIG contact.

High Safety Application

Application in railway signaling relay

Featured Products

Silver Impregnated
Graphite Contacts
Silver Impregnated Graphite
Heavy Duty Contacts

Silver Impregnated Graphite Contacts

Silver Impregnated Graphite (SIG) contacts are used in high safety applications of railway signaling, traffic signaling, and numerous other applications that eliminates the risk of welding in the presence of graphite. High contact resistance (>200mΩ) was observed in the SIG contacts in a railway signaling operation after a few thousand operations of the relay. The high contact resistance was discovered to be a result of loose dust/foreign particles residing between the two contacts. Silver had been preferentially removed from the contacting surfaces during switching operations by an abrading effect of the dust/foreign particles, leaving only graphite on the contact area. Wear was accentuated by the presence of porosity and low hardness of the contacts, leading to improper interaction between the mating surfaces.

Silver Impregnated Graphite Heavy Duty Contacts

Silver Impregnated Graphite relay contacts combine the best properties of silver (electrical/thermal conductivity) and graphite (refractory nature) into a composite material. Distinctive features of the SIG material include its hard fusing characteristic, better conduction of heat and electricity, and easy brazing. Graphite carbon has high heat of vaporization and appreciably low material transfer in the localized high temperature spots developed during mating of contacts. Additionally, due to a high percentage of silver, the desired electrical properties are retained with practically no risk of welding. This combination of properties makes these contacts suitable for high safety applications such as railway signaling, traffic signaling, and numerous other applications.

Welcome to

CAg Industries

CAg Industries, a pioneering firm specializing in the manufacturing of Silver Impregnated Graphite Contacts, stands as a testament to years of dedication, technical expertise, and a commitment to excellence. Founded on a solid foundation of technical knowledge and experience gathered through systematic research, CAg Industries has emerged as a trusted provider of high-quality contacts for various railway signaling relay manufacturers and Indian Railways.
The journey of CAg Industries has been characterized by a relentless pursuit of technical proficiency and innovation. With a profound understanding of the intricacies of contact operation and an unwavering focus on quality, the firm has developed Silver Impregnated Graphite Contacts that are compatible with a wide range of signaling relays conforming to IRS S-67-85 Standards. This compatibility has been validated by a vast database of satisfied customers who rely on CAg Industries' products for critical contact applications.

Application

Silver Impregnated Graphite relay contacts combine the best properties of silver and graphite into a composite material. Distinctive features of the SIG material include its hard fusing characteristic, better conduction of heat and electricity, and easy brazing. Graphite carbon has high heat of vaporization and appreciably low material transfer in the localized high temperature spots developed during mating of contacts. This combination of properties makes these contacts suitable for high safety applications such as railway signaling, traffic signaling, and numerous other applications.