Through-hole slip ring

for wind turbinefor industrial applicationscopper

Short Description
This multi-channel heavy-duty slip ring features stacked copper collector rings, robust insulated support rods & double-sided flange mounting. It delivers stable continuous power and signal transmission for rotating machinery, supports multi-circuit integration, features a wear-resistant brush contact structure, high insulation level and customizable IP protection. Widely used in wind turbines, mining equipment, rotary platforms, industrial cranes and large automation rotating devices to solve rotary current and signal transmission barriers.

Overview
Industrial multi-circuit slip rings (collector rings, rotary electrical connectors) transmit power, control signals and analog/digital data between stationary and rotating parts without wire twisting. The stacked flange design uses modular stacked copper rings, independent silver-carbon brush assemblies, reinforced epoxy insulation and double-flange mounting, engineered for heavy-load, long-running industrial rotary equipment to eliminate cable winding failures and ensure uninterrupted electrical transmission under continuous rotation.

Core Product Advantages for Industrial Buyers

• Multi-layer stacked conductive copper rings: high conductivity, low electrical resistance, stable voltage output, no signal attenuation during rotation
• Independent split silver-carbon brush contact modules: uniform contact pressure, self-lubricating, ultra-low wear, extended service life, easy individual replacement without disassembling the whole unit
• Reinforced fiberglass epoxy insulation support posts: high temperature resistance, excellent dielectric strength, anti-aging, mechanical shock & vibration resistant
• Double metal flange mounting plates (top & bottom): pre-drilled mounting holes for direct bolt installation on rotary shafts, vertical/horizontal assembly compatible
• Central hollow through-hole design: allows hydraulic/pneumatic pipelines, drive shafts or cables to pass through the slip ring center for integrated system layout
• Customizable circuit quantity, current rating & protection grade: supports mixed power + signal circuits, optional IP54/IP65 sealed structure for dusty, humid outdoor working environments
• Wide operating temperature range: operates steadily from -20°C to +120°C, fits extreme workshop, open-air mining & new energy wind power environments
• Low rotational friction torque: smooth rotation, no jamming, does not add extra load to host rotating drive motors

Key Technical Specification Table
Parameter Item | Standard Technical Value | Customizable Options | Benefit for Buyers
Conductive Ring Material | High-purity copper with silver plating | Gold-plated rings for weak signal | Lower contact resistance, anti-oxidation, clear low-current signal transmission
Brush Material | Silver-carbon composite brush | Gold alloy brush, graphite brush | Longer service cycle, fewer maintenance stops
Circuit Channels | 6–36 circuits | Custom 2–60 mixed power/signal circuits | Match multi-function machinery's power & control wiring demands
Single Circuit Current | 10A / 25A / 50A per ring | Up to 200A heavy current rings | Adapt light signal control & high-power main circuit simultaneously
Through Hole Diameter | Standard 50mm central bore | 30mm–100mm custom hollow shaft | Integrate hydraulic lines, central drive shafts inside the slip ring
Insulation Material | Fiberglass epoxy rod, bakelite flange | PTFE high temp insulation | Withstand high heat, prevent short circuit under heavy load
Protection Level | IP54 base version | IP65 fully sealed dust/waterproof | Deploy outdoors, mines, coastal humid industrial sites
Rotational Speed Max | 0–300 RPM continuous | Low-speed modification for heavy slow rotating equipment | Stable performance for both fast & slow rotary machinery
Operating Temperature | -20°C ~ +120°C | High temp version up to 180°C | Compatible with furnace, metallurgy, wind turbine high-heat environments
Mounting Form | Double upper & bottom flange | Single flange, shaft clamping mounting | Flexible installation for all types of rotary mechanical structures

Main Industrial Application Scenarios

• New energy wind power equipment: wind turbine yaw & pitch rotating power transmission
• Mining & construction machinery: rotary drilling rigs, mining hoists, large tower cranes
• Automated rotary platforms: packaging rotary turntables, automated welding rotary fixtures, robotic rotary joints
• Port & lifting equipment: container rotary spreaders, heavy-duty lifting rotating mechanisms
• Special industrial equipment: radar rotary bases, large rotating test benches, hydraulic rotary actuators

How This Slip Ring Solves Buyers' Pain Points

• Eliminate wire twisting damage: enables endless 360° rotation without cable winding
• Cut maintenance labor cost: separable brush modules allow single damaged brush replacement without full-unit disassembly
• Simplify equipment structural design: central through-hole integrates fluid pipelines & drive shafts, saving internal layout space
• Stable signal & power output: plated copper rings avoid signal loss and prevent equipment malfunction caused by unstable transmission
• Adapt to harsh environments: high insulation and optional IP65 sealing resist dust, moisture and vibration
• Customization support: adjust circuit count, current, size & protection grade to match OEM equipment design requirements

Caractéristiques / spécifications techniques

• Conductive rings: high-purity copper with silver plating (option: gold-plated for weak signals)
• Brushes: silver-carbon composite (options: gold alloy, graphite)
• Circuit channels: standard 6–36, customizable 2–60 mixed power/signal circuits
• Single circuit current: standard 10A / 25A / 50A per ring, up to 200A for heavy current rings
• Through-hole diameter: standard 50mm, customizable 30mm–100mm
• Insulation: fiberglass epoxy rods and bakelite flange (option: PTFE high-temp insulation)
• Protection level: IP54 base, optional IP65 sealed
• Rotational speed max: 0–300 RPM continuous; low-speed modifications available
• Operating temperature: -20°C to +120°C (high-temp option up to 180°C)
• Mounting: double upper & bottom flange (options: single flange, shaft clamping)