Pipeline twisting, unstable signal transmission and seal leakage have long been persistent problems in the operation of large-scale rotating complete sets of equipment. Independently developed by Hongyuan Hydraulic, the electro-hydraulic-pneumatic rotary slip ring enables the equipment to achieve 360° unlimited continuous multi-turn rotation. It can simultaneously deliver hydraulic power, compressed air, power supply, control signals and high-precision micro sensor signals, ensuring smoother and more stable operation of rotating equipment. This product is applicable to heavy-duty and complex working conditions across multiple industries.

1. Wide Range of Application Scenarios

This rotary slip ring fits all large electromechanical equipment with rotating mechanisms, with core application fields as follows:

• Metallurgy Industry: Ladle turrets of continuous casters, drilling platforms, trunnion rings of steelmaking converters and other core steelmaking equipment;

• General Heavy Industry: Mining machinery, petrochemical equipment, hoisting machinery and scientific research test equipment.

It also meets the demands for supporting new production lines, technical renovation of old equipment and spare parts replacement.

2. Core Design and Performance of Electrical Slip Ring

Targeting electromagnetic interference, humid and dusty industrial environments, the electrical slip ring is optimized with multiple professional structural designs:

1. Three Independent Conductive ChannelsThree types of conductive circuits are designed separately for high-power electricity, conventional control signals and millivolt-level micro sensor signals. Shielding structures are added to signal circuits to effectively resist on-site electromagnetic interference and guarantee accurate data transmission.

2. Moisture-proof Sealing StructureThe fully enclosed structure prevents condensed water generated in humid environments and avoids insulation damage of conductive contacts caused by water droplets, so as to improve operational reliability and service life of the whole equipment.

3. Intelligent Electronic Control ConfigurationBuilt-in digital control module and semi-ring dual power automatic switching function are equipped to adapt to various automatic complete control systems.

4. Wear-resistant Rotor Fork StructureThe specially designed high-rigidity rotor fork with installation compensation function ensures smooth rotation. It offsets external interference from lateral torque and greatly reduces wear of bearings, seals and conductive contacts, extending the replacement cycle of accessories.

Electrical Parameters

• Power supply circuit: Isolation voltage of connectors ≥ 2000 V, rated current 30 A, maximum circuit voltage drop ≤ 1 V

• Control signal circuit: Isolation voltage of connectors ≥ 500 V, rated current ≤ 5 A, maximum circuit voltage drop ≤ 0.1 V

• Micro sensor circuit: Supports stable transmission of precision sensor signals at mV voltage level and mA current level

3. Technical Parameters and Hardware Configuration of Hydraulic & Pneumatic Slip Ring

The hydraulic and pneumatic channels are customized for high-temperature and heavy-duty working conditions in steelmaking, with strict quality control over material selection, processing and accessory assembly:

1. High-precision Machining & Special MaterialsAdopting exclusive processing technology and special materials, the radial runout of the slip ring is less than 0.02 mm, realizing smooth rotation without jamming and low vibration.

2. Medium Delivery CapacityRated working pressure ≤ 40 MPa; flow rate of single channel adjustable within 0-500 L/min, meeting the requirements for large-flow hydraulic and pneumatic delivery.

3. Core AccessoriesAll internal supporting bearings adopt SKF bearings, and high & low pressure rotary seals are imported products, featuring excellent wear resistance, high temperature resistance and anti-leakage performance.

Verified by long-term operation on a large number of metallurgical equipment across various industries, our products have gained wide recognition in the industry.

4. Customized Services

• Rotation angle: Supports unlimited continuous rotation in any direction of 360°×n;

• Dimensional structure: Compact non-standard customization for internal structure and external shape of electrical slip rings based on on-site working voltage, rated current and installation space of equipment;

• Channel combination: Custom collocation of hydraulic channels, pneumatic channels, strong and weak current signal channels. We provide services including surveying & modification and brand-new non-standard design.

Hebei Hongyuan Hydraulic Machinery Co., Ltd. is dedicated to the R&D, manufacturing and supporting of hydraulic rotary accessories. Based on the complex working conditions of various industries, we deliver stable and durable electro-hydraulic-pneumatic rotary slip ring solutions for all kinds of rotating equipment via sophisticated craftsmanship, reliable accessories and optimized structural design.

Feel free to contact us for detailed solutions regarding slip ring selection, spare parts replacement and customized cooperation.

Hebei Hongyuan Hydraulic Machinery Co., Ltd.Specialized in R&D, production and supporting of electro-hydraulic-pneumatic rotary slip rings for metallurgy and heavy industry