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Hollow Shaft Rotary Union

30mm Hollow Pneumatic Electric Brushless Slip Ring Rotating Connector

  • Place of Origin:


  • Brand Name:


  • Certification:

    CE, ISO9001

  • Model Number:


  • Product Details

Product Name:

Hollow Shaft Slip Ring


4 Passages

Pipe Size:

6~8mm Pipe, G1/8"Port

Working Life:

20millions For Ref(depends On Working Conditions)

Max. Operating Speed:

250RPM Continously, 1000RPM Intermittently

Working Temp.:


Work Humidity:

0~85% RH



  • Product Description

30mm Hollow Pneumatic And Electric Slip Ring Rotating Connector

Description of 3304006 Hollow Shaft Slip Ring

The Senring 3304006 series pneumatic rotary joint is a 30mm through-hole dual-passage pneumatic and electric slip ring that can rotate 360 degrees to transmit four independent compressed air, vacuum, and other gas media. It supports various sizes of air pipes such as 4mm, 6mm, and 8mm. The 3304006 series rotary pneumatic and electric slip ring can not only transmit gas but also mix transmission of electrical current.

Features of 3304006 Hollow Shaft Slip Ring

Optional pure gas slip rings or hybrid slip rings consisting of power lines, signal lines, Ethernet, control lines, solenoids, sensing lines, and other components for pneumatic and electric integration. The center of the pneumatic and electric slip ring has 30 through-holes that can pass through the rotating shaft. The media that can pass through include compressed air, nitrogen, chemical mixed gas, cooling water, etc.

Technical Specification of 3304006 Hollow Shaft Slip Ring

Passages(Gas)4 passages
Pipe Size6~8mm pipe, G1/8"Port
Mechanical Data
Working life20millions for ref(depends on working conditions)
Max. Operating Speed250RPM continously, 1000RPM intermittently
Working temp.-30°C~80°C
Work humidity0~85% RH
Contact MateriaPrecious Metal
Housing Materialaluminum alloy
IP GradeIP51
Max. Operating PressurePositive Pressure 1Mpa, Vacuum -90kPa
Electrical Data
Voltage range0~440VAC/VDC0~440VAC/VDC
Insolution resistance<500M&Omega;/300VDC<500M&Omega;/300VDC
Lead wire spec.AWG17# Silver-plated teflon wireAWG22# Silver-plated teflon wire
Lead wire lengthstandard 250mm
(can be customized)
Insolution resistance500VAC@50Hz,6s
Electrical noise<0.01&Omega;

Part no. description



33040063304006中空30mm气电滑环 系列滑环外形图纸

Standard model list

ModelPassages(Gas)Port SizePipe Size
33040064 passagesG1/8"6~8mm
30mm Hollow Pneumatic Electric Brushless Slip Ring Rotating Connector 2


1. Are you a factory or a trading company?

A: We are a professional manufactory with High-level R & D team.

2. What is a slip ring?

A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure. A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals. It can improve mechanical performance, simplify system operation and eliminate damage-prone wires dangling from movable joints.

3. Do you offer custom slip rings?

Yes, if you are confident that a custom / modified solution is most likely required or need assistance in your selection, contact us to Get Started. Our engineers will come up with the perfect solution for your needs.

Contact Us

Service hotline


Phone:+86 18100274370


ADDRESS:No.36 Xingda Road, Yanchuan Community, Yanluo Street, Bao'an District, Shenzhen

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