Experience unmatched reliability with the SP036020 Long Life High-Speed Slip Ring. Engineered with a concentricity deviation of ≤0.01mm and a specialized near-zero pressure brush design, this unit minimizes wear and electrical noise. It supports 20 channels of power or signal (strain gauge, thermocouple) transmission. With an operating temperature range of -45℃ to 60℃ and customizable speeds up to 8000 RPM, it is the ultimate solution for high-precision instrumentation and dynamic testing environments.
Technical parameters
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Electrical specifications |
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Design loop |
20 |
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Insulation resistance |
200MΩ/250V/DC |
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Rated voltage/current |
250VDC/3A |
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Dielectric strength |
≥250VAC/50Hz/60s |
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Dynamic resistance change value |
≤10mΩ |
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Wire length |
Standard 300 ± 20mm (optional) |
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Mechanical specifications |
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Rated speed |
0~3000 rpm |
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Working life |
10 million~100 million circle |
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Operating temperature |
-45℃ ~ 60℃ |
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Contact material |
Gold-gold |
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Shell material |
Alluminum alloy/304 stainless steel/316L stainless steel |
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Maximum starting torque |
3.5N.cm |
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IP grade |
IP51 |
Outline Drawing

Technical advantages:
ü Slipring's core technology - friction pair technology: gold metal contact technology, ensuring an ultra long service life.
ü Integrated casting process: Ensure the concentricity between the ring groove and the bearing is ≤ 0.01mm.
ü Mirror processing technology: Ensure that the smoothness of the slip ring contact surface can reach Ra0.02, making the contact more reliable.
ü Precision component manufacturing process: dimensional tolerance<0.01mm, axial displacement<0.01mm, high precision, and more stable performance.
ü Advanced brush wire modulation technology: Nearly zero pressure brush design and debugging process, extending the life of the slip ring by 1/3.
ü High speed, this slip ring can reach a maximum speed of 8000 revolutions per minute (with cooling system).
ü Long lifespan, with a maximum lifespan of up to 100 million revolutions per minute.