CARBON GRAPHITE ELECTRICAL CONTACT MANUFACTURING
ARC™ Electrical Contacts / Collector Shoes are manufactured from the highest quality, proprietary materials. St. Marys Carbon has carbon graphite, electrographite, resin-bonded graphite, copper graphite, silver graphite and other metal graphite materials to suit your specific application. All of our electrical contacts, from the blending of raw materials to the finished product, are made in-house by our specialized craftsmen.
Each of our ARC Electrical Contacts can be custom-manufactured to your specific requirements. We develop our own proprietary carbon grades and manufacture each product in-house, so we will work closely with you to create a product that is suited to your application.
ENVIRONMENT, OPERATING CONDITIONS & APPLICATIONS
ANTI-WELDING/MELTING
Prohibits welding and melting to other metal surfaces due to the composition and quality of our grades
HIGH CONDUCTIVITY
Provides consistently high conductivity as only the purest metals and materials are used.
OXIDATION-RESISTANT
Resists chemical degradation of the
surface material for use in extreme conditions.
SELF-LUBRICATING
Reduces friction/wear and maintenance and increases stability at high temperatures.
KEY END PRODUCTS
Our ARC Electrical Contacts are used in the motors of a variety of end products as listed below. Remember that we custom-design our products to fit your needs, so please contact us if you have a need outside of those below and we’ll work with you to find a solution.
- Conveyors/Hoists
- Electric Vehicles
- Elevators
- Mobile Cranes
- Monorails People Movers
- Rail Systems
- Revolving Lights
HOW CAN WE HELP YOU ?
CARBON GRAPHITE ELECTRICAL CONTACT DETAILS
Working Temperature
- Minimum
- Runs in cryogenic temperatures (no true minimum value)
- Maximum
- Carbon/Graphite up to 700 F
- Electrographite up to 900 F
- Electrographite with inorganic additives up to 1150 F
- Other oxidation inhibitors (impregnants) up to 1200 F
- In inert/neutral environments
- Carbon/Graphite up to 1600 F
- Electrographite up to 5000 F
Key Markets
Our electrical contacts and collector shoes are used across a wide range of different markets, including:
- Aerospace
- Automotive
- Construction
- Industrial
- Mining
- Power Generation
- Transportation
Average Oxidation & Chemical Resistance
- Carbon grades are resistant to most chemicals
Spring Pressure Range
- Application dependent
Amp per sq inch
- 75 – 150 A/in2
CARBON GRAPHITE GRADE
| Grade | Density(lbs./ft.3) | Flexural Strength (psi) | Current Capacity (Amps/in2) | Scleroscope Hardness | Volts Contact Drop | Coefficient of Friction | % Metal | Applications |
|---|---|---|---|---|---|---|---|---|
| G-60 | 411.84 | 11,000 | 150 | <20 | Low | Medium | 96% | Electrical Contacts / Collector Shoes |
| G-98B | 393.12 | 12,000 | 150 | <20 | Low | Medium | 97% | Electrical Contacts / Collector Shoes |
| G320 | 405.60 | 30,000 | 150 | <20 | Low | Medium | 96% | Electrical Contacts / Collector Shoes |
| G257 | 393.12 | 22,000 | <20 | Low | Low | Low | 95% | Electrical Contacts / Collector Shoes |
| B-17 | 96.72 | 4,500 | 65 | 65 | Very High | Medium Low | N/A | Electrical Contacts / Collector Shoes |
| FL-57 | 146.64 | 8,000 | 70 | 75 | Medium | Low | N/A | Electrical Contacts / Collector Shoes |
| A-96 | 98.59 | 4,000 | 50 | 45 | Medium | Medium | N/A | Electrical Contacts / Collector Shoes |
| B-96 | 102.96 | 3,000 | 65 | 45 | Medium | Low | N/A | Electrical Contacts / Collector Shoes |
| G364 | 405.60 | 21,000 | 150 | <20 | Low | Medium | 95% | Electrical Contacts / Collector Shoes |
How carbon graphite will make your products & parts superior
ARC™ Electrical Contact Data Sheet
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