The GK3899-53P-E0294 is a 53-channel through-bore electrical slip ring. It features 53 total circuits, supports an operating voltage of 0–440V, and has a rated rotational speed of 250 RPM. The unit is housed in an aluminum alloy casing with an IP51 ingress protection rating and is designed to operate within a temperature range of -30°C to +80°C. It utilizes precious metal contacts, ensuring a dynamic contact resistance of less than 0.01Ω.
The slip ring includes a 38mm central through-bore, an overall length of 157mm, and an outer diameter of 99mm on the stator side. The wiring is categorized into power and signal channels; the wires are configured according to AWG standards, with shielding provided for the signal channel groupings.
Key Features
53-Channel High-Density Integration: Incorporates 53 independent channels within a compact structure, meeting the centralized transmission requirements for multiple sensors and actuators, while serving as an alternative to stacked slip-ring assemblies.
Φ38mm Standard Through-Bore: The central aperture accommodates power cables, signal lines, pneumatic hoses, or drive shafts, simplifying routing at the rotating interface and enabling the integration of multiple media types.
440V High-Voltage Compatibility: Supports an operating voltage range of 0–440V, allowing for direct connection to industrial three-phase power grids and specialized equipment, ensuring high adaptability.
Segmented Power/Signal Routing with Shielding: Channels are categorized into power and signal groups; signal channels feature individual shielding layers to effectively suppress electromagnetic interference (EMI) and ensure signal integrity.
Why choose this 53-channel through-bore electrical slip ring?
1. A Centralized Connection Hub for High-Density Rotating Equipment
In high-end automated machinery, multi-axis robots, and large-scale test platforms, there is often a need to transmit dozens of power and signal channels simultaneously. The GK3899-53P-E0294 features an integrated 53-channel design, replacing complex configurations that rely on stacking multiple smaller slip rings. This simplifies system architecture, reduces potential points of failure, and enhances overall reliability.
2. Power/Signal Partitioning and Shielding for Improved Interference Resistance
Output channels are categorized into power and signal paths. Signal channels are equipped with individual shielding layers, effectively isolating electromagnetic interference (EMI) generated by high-current circuits. This ensures:
Distortion-free transmission of encoder and sensor signals
Stable data communication
Enhanced overall electromagnetic compatibility (EMC) of the system
3. High-Voltage (440V) and High-Speed (250 RPM) Capabilities for Diverse Operating Conditions
The unit supports a wide voltage range (0–440V), making it compatible with industrial three-phase power grids and specialized equipment. Its 250 RPM rotational speed meets the operational cycle requirements of most automated systems, while an operating temperature range of -30°C to +80°C ensures reliable performance in environments ranging from frigid outdoor conditions to high-temperature industrial workshops.
Applications
Multi-axis robots and robotic arms: Centralized transmission of multi-channel sensor signals and power for actuators at the joints.
Automated rotary worktables: Distribution of signals and power for multi-station indexing tables and rotary assembly platforms.
Test and measurement equipment: Multi-channel data acquisition and power delivery for rotary test benches.
Packaging and filling machinery: Transmission of multiple control signals for rotary filling heads and sealing machines.
Medical and laboratory instruments: Multi-channel signal connectivity for rotary scanning devices and diagnostic instruments.
New energy and power equipment: Rotary power supply and signal transmission for wind turbine pitch control systems and solar tracking mounts.
Frequently Asked Questions (FAQ)
Q1: Can all 53 channels operate at full load simultaneously?
A: Yes. The total current-carrying capacity for all 53 channels operating at full load depends on the specific AWG wire gauge used for each channel and the current distribution. In practical applications, it is essential to ensure that the power supply capacity and heat dissipation conditions are adequate; we recommend providing details on your specific load operating conditions so that we can perform an assessment.
Q2: What is the maximum outer diameter of a cable or conduit that can pass through the Φ38mm through-bore?
A: The 38mm inner diameter can accommodate:
Multiple cables with an outer diameter ≤30mm (e.g., one 25mm² power cable plus several control wires).
Multiple pneumatic or hydraulic tubes with an outer diameter ≤10mm (e.g., 4–6 tubes).
Various optical fibers and sensor wire harnesses.
A mechanical shaft with a maximum outer diameter of 35mm (rotational speed and balance must be taken into account).
Q3: How are power channels distinguished from signal channels, and how is shielding implemented?
A: The output lines are categorized by function into power channels (for high-current transmission) and signal channels (for sensors, encoders, communication, etc.). Each group of signal channels is equipped with an independent shield and includes a dedicated grounding lead, allowing users to ground the shield to suppress electromagnetic interference. Please refer to the product wiring diagram for specific channel groupings and pin assignments.
Customized Services
Should you require more channels, higher current ratings, larger through-bores (50mm, 90mm), higher ingress protection ratings (IP65/IP67), or specific cable lengths and connectors, our technical team is ready to provide professional custom design and engineering support. Please feel free to contact us for a detailed solution.
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