Miniature Bore
DOWNHOLE HIGH TEMPERATURE / HIGH PRESSURE WINCH SLIP RING

The Model 303 miniature bore is a family of electrical slip ring products designed specifically for the extremely harsh high temperature and high pressure (HTHP) oilfield-downhole environment. These products are designed and tested to operate at temperatures of up to 200°C and pressures of 25,000 psi (1700 Bar), and are generally configured for an oil-filled environment. Contact our oilfield - downhole slip ring experts for details.
Features
- Withstands temperatures of up to 200°C and pressures of 25,000 psi (1700 Bar). Higher temperatures and pressures possible
- Can be combined with high temperature and high pressure resolvers and motors for position and speed feedback and motive power
- Inner bore and outer diameter can be customized for specific downhole tooling envelopes
- Low electrical contact resistance
- Pressure and temperature compensation available
- Up to 1000 V versions
Benefits
- Slip rings eliminate cable twist and jamming
- Easily integrated with other products such as motors and resolvers to reduce integration issues
- Proven, fielded technology
- Increase in power and bandwidth capacity, and improved power transmission efficiency as compared to inductive technologies
- High quality and reliability
Testing
- High temperature and pressure test simulator capable of 260°C and 30,000 psi
- Includes in situ rotation
- Fully tested at peak temperature and pressure conditions to minimize any failure modes
- Shock and vibration testing carried out to specific customer requirements
Specifications | |
---|---|
Rotational Speeds | Up to 600 rpm standard Contact factory for other requirements |
Temperature | 200°C standard Consult factory for other requirements |
Pressure | 25 kpsi (1700 bar) |
Channels | Up to 8 |
Voltage | 250 - 500 VAC standard |
Current | Up to 2 A per channel |
Key Dimensions | 0.375” (9.5 mm) hollow bore ID, ~1.7” (43.2 mm) minimum OD |
Contact Us
Technical Support
Telephone: +1-902-468-2263
Typical Applications
- Wirelining
- Measuring / logging while drilling
- Industrial high temperature applications