Product Quality Levels

The slip rings are categorized into three quality levels: VC (Common Version), VD (Industrial Version), and VH (High-end Version). Each level differs in maximum rotating speed, working life, and contact material:

• VC: Max speed 200 RPM, 15 million revolutions, precious metal contacts.
• VD: Max speed 600 RPM, 80 million revolutions, gold-gold contacts.
• VH: Max speed 1000 RPM, 150 million revolutions, aluminum alloy contacts.

Electrical Specifications

• Rated voltage: 0~440 VAC/VDC
• Insulation resistance: ≥1000 MΩ at 500 VDC
• Lead wire: AWG16# Teflon (power), AWG22# Teflon or bus cable (signal)
• Lead length: Standard 300 mm, adjustable
• Insulating strength: 500 VAC @ 50 Hz for 60 seconds
• Electrical noise: Less than 0.01 Ω

Mechanical Specifications

• Working temperature: -30°C to 80°C
• Operating humidity: 0 to 85% RH
• Housing material: Aluminum alloy
• Torque: 0.1 N·m plus 0.03 N·m per 6 rings
• Protection grade: IP51

Product Series Overview

MB120 Series

Industry bus slip rings designed for high-speed transmission with various configurations supporting CANOPEN, CC-LINK, and ProfiNET protocols. Lead wire color codes are standardized for 12 rings, repeating every 6 wires.

MB250 Series

Standard integral and precise industry bus slip rings with a bore size of 25.4 mm (1/2 inch), suitable for applications requiring Profibus, EtherCAT, CanBUS, CANOPEN, DeviceNET, CC-LINK, ProfiNET, and others. Through bore sizes smaller than 25.4 mm can be accommodated by adding a sleeve.

MB250F Series

Similar to MB250 but with an outer diameter of 86 mm and no through bore, featuring rotor flange installation. Supports the same industrial bus protocols as MB250.

Part Numbering and Configurations

Detailed part number tables list configurations by number of rings (0, 6, 12, 18, 24, 30, 36), supported industrial bus protocols (Profibus, CANBUS, CANOPEN, EtherCAT, DeviceNET, ProfiNET, CC-LINK), and length in millimeters. Power rings typically support 10A, signal rings 5A. Multiple 10A rings can be paralleled to increase current capacity (e.g., 2 rings of 10A in parallel equal 20A).

Customization Options

Special demands can be customized with an extended delivery time of 3 to 15 days and increased cost by 30% to 50%. Customizable features include:

• Bore diameter, cable exit direction, and cable length for rotor and stator
• Dimensions such as length, height, and outer diameter
• Support for up to 200 rings for current or signal
• Optional aviation plugs, terminals, and heat-shrink tubes
• Hybrid slip rings for servo control signals, power lines, and encoder lines (Yaskawa, Panasonic, Siemens)
• Support for mixed high-speed data transmission protocols (Ethernet, USB, RS232, RS485, Profibus, CanBUS, CANOPEN, DeviceNET, CC-LINK, ProfiNET, EtherCAT, etc.)
• Combination of temperature control signals with thermocouple signals
• Special environments such as quakeproof and high temperature
• Hybrid pneumatic/hydraulic and electric slip rings
• High temperature tolerance up to 500°C
• High voltage tolerance up to 110 kV
• Rotating speed up to 10,000 RPM
• Maximum current up to 5000 amperes
• Military grade options
• Underwater protection options IP65 and IP68
• Optional stainless steel housing

Additional Notes

• Standard parts are modular to reduce cost and lead time.
• Technical support is available via email at [email protected].
• Lead wire color coding is consistent across series for ease of identification.
• Power and signal ring numbers can be flexibly configured upon customer request.

Summary

This document provides comprehensive technical specifications, product series descriptions, part number configurations, and customization options for MB120, MB250, and MB250F series industrial bus slip rings. These slip rings support a wide range of industrial communication protocols and are designed for high reliability, long working life, and adaptability to various industrial environments and requirements.