Electric slip ring EST series

capsulethrough-boresilver

Overview
The EST Series electrical through-bore slip ring transfers power, control circuits and analog/digital data between stationary and rotating interfaces. It features a 1.5 inch [38.1 mm] through bore for shaft mounting and long-life fiber brush contacts that require no lubrication and produce minimal wear debris. Standard models cover 6, 12, 18 and 24 circuits. The series can be supplied as part of integrated fluid rotary union + electrical slip ring packages for combined fluid and electrical transfer.

Configurations

• EST6 — 6 circuits (6×10A), 600V, capsule length 2.130" [54 mm], max 250 RPM, data speed under 50 Mbps
• EST12 — 12 circuits (12×10A), 600V, capsule length 3.070" [78 mm], max 250 RPM, data speed under 50 Mbps
• EST18 — 18 circuits (18×10A), 600V, capsule length 4.010" [102 mm], max 250 RPM, data speed under 50 Mbps
• EST24 — 24 circuits (24×10A), 600V, capsule length 4.940" [125 mm], max 250 RPM, data speed under 50 Mbps

Key product highlights

• Through-bore size: 1.5 inch [38.1 mm] for shaft mounting
• Contact type: long-life fiber brush contacts (low wear, no lubrication)
• Standard circuit counts: 6, 12, 18, 24 (EST6, EST12, EST18, EST24)
• Designed to transfer power, control circuits and analog/digital data

Applications / Integration
Standard EST Series models support electrical-only installations and can be integrated with fluid rotary unions when combined fluid and electrical transfer is required.

Technical specifications

• Current rating (typical per circuit): 10A
• Voltage rating: 600V
• Maximum operating speed: 250 RPM
• Maximum data speed (non-Ethernet): Under 50 Mbps
• Mounting: Through bore (1.5 in [38.1 mm])
• Standard circuits: 6, 12, 18, 24
• Lead gauge: 16 AWG
• Lead wire length: 36" [914 mm]
• Lead wire material: Tin-plated copper
• Contact material: Silver
• Electrical noise: 100 milliohms (max.)
• Operating temperature: -40° F to 176° F [-40° C to 80° C]
• Protection: resistant to dust, light splash and condensation
• Design: low torque; low contact force per fiber
• Signal capability: transfers analog and digital signals; compatible with common data bus protocols (application-dependent)