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Hollow Shaft Rotary Union 20mm OD56mm 4ch Air (M5,1Mpa) for 4~6mm Pipes

SENRING

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SKU:
530-3404004
MPN:
3404004
SenRing 3404004 Hollow Rotary Union 20mm Bore OD56mm 4 Channels Air M5 1MPa
SenRing 3404004 hollow rotary union with 20mm centre hole, OD56mm, 4 channels air (M5 ports, 1MPa). Reliable pneumatic rotary joint for air, vacuum, and fluid transfer in rotating systems. View full description
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  • GST Invoice
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₹19,052.28 inc. GST
₹16,146.00 ex. GST

Technical Specifications

Brand:
SENRING
Type:
Hollow Rotary Union
Outer Diameter:
56mm
Centre Hole Diameter:
20mm
Number of Channels:
4
Port Size:
M5
Supported Pipe Size:
4–6mm
Max Pressure:
1MPa
Torque:
0.4N·m
Max Rotating Speed:
250RPM Continuous / 1000RPM Intermittent
Housing Material:
Aluminum Alloy
Working Life:
Up to 20 million revolutions
Operating Temperature:
–30 C to+80 C
Humidity Range:
0–85% RH
IP Rating:
IP51
Voltage Range:
0~440VAC/VDC
Insulation Resistance:
≥300Mohm/300VDC
Lead Wire:
AWG17 Silver-Plated Teflon Wire

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

Resources:

Datasheet

Hollow Rotary Union Hole 20mm OD56mm 4 Channels Air (M5, 1MPa) | SenRing 3404004

The SenRing 3404004 is a hollow-shaft rotary union designed for pneumatic or vacuum transmission in continuously rotating systems. Featuring a 20mm centre bore (for shaft ≤20mm) and four independent air passages with M5 ports for 4–6mm pipes, this model ensures reliable, leak-free transfer of air, steam, or cooling fluids up to 1MPa pressure or –90kPa vacuum. The 3404004 series combines precision sealing, aluminium alloy housing, and low-friction contact technology, resulting in long service life, smooth rotation, and low maintenance. It can also be customised with electrical power or signal channels, making it suitable for advanced robotics, automation systems, and pneumatic machinery.

Key Features

  • 4 air channels for compressed air or vacuum transfer
  • M5 threaded ports, compatible with 4–6mm air pipes
  • Hollow shaft design with 20mm centre hole
  • Max pressure: 1MPa; vacuum: –90kPa
  • Low torque: <0.4N·m for stable 360 rotation
  • Durable structure: Aluminium alloy housing
  • High-speed operation: 250RPM continuous / 1000RPM intermittent
  • Optional hybrid version with electrical circuits (5A or 10A)
  • Contact material: Precious metal for low wear and high reliability
  • Long life: Up to 20 million revolutions (typical)
  • Operating temperature: –30 C to+80 C

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