Description
Fluid：
Water, Oil
Materials of housing：
Carbon Steel/Stainless Steel
Seal structure：
Multi-springs Balanced Mechanical Seal
Housing connection：
Thread/ Flange
Size:
From 32A to 300A
PN max：
0.8Mpa
Speed max：
1000RPM
T max：
180℃
Introduction
A hydraulic rotary swivel joint is a mechanical device used to transfer hydraulic oil and other media from a fixed part to a rotating part. It is commonly used in rotating equipment such as hydraulic machinery, engineering equipment, machine tools, and reels.
Advantages
1. High-pressure bearing capacity
Our products are made of high-strength alloy steel and feature a composite sealing structure made of tungsten carbide and fluororubber, which enhances the overall pressure resistance. Under standard test conditions, the maximum working pressure of the joints in this series can reach 35 MPa (350 bar).
2. High-speed operation resistance
In order to meet the requirements of high-speed operation, our products are designed with an optimized bearing configuration and rotor weight distribution, combined with dynamic balancing. The single-channel hydraulic rotary joint can operate stably at a maximum speed of 300 rpm, while the multi-channel model can operate stably at speeds not exceeding 150 rpm. Throughout operation, the vibration level is maintained at ≤0.8 mm/s, which helps extend the service life of the joint and supporting equipment and reduce mechanical stress during system operation.
3. Long life and low maintenance frequency
During the life test, after the hydraulic rotary joint has operated continuously for 500 hours under a pressure of 32 MPa and at a constant speed, the average wear rate of the bearings and seals is less than 0.01 mm/hour. The service life of the entire machine is expected to reach 5 years or more than 20 million revolutions in total, with only basic routine inspections required, significantly reducing equipment maintenance costs and downtime.
|
订货型号 |
规格 |
A |
C |
E |
F1 |
L |
L4 |
L6 |
N |
FAQ
Q: What exactly is a hydraulic rotary swivel joint?
A: It's a mechanical fitting that lets pressurised hydraulic fluid pass between a stationary supply line and a rotating component-like a drum, a turntable, or a robotic arm. The joint seals the fluid path while allowing continuous 360° rotation without leaking.
Q: Where would I typically use one?
A: You'll find them in construction equipment (excavator swivels), industrial robotics, wind turbine pitch controls, offshore drilling rigs, and any rotating platform that needs a steady flow of oil or water under pressure.
Q: How do I choose the right joint for my system?
A: Focus on three numbers: operating pressure (bar/psi), flow rate (litres per minute), and port size. Also check the number of fluid passages (single or multiple) and the environmental conditions-temperature, corrosion risk, and mounting orientation matter just as much.
Q: Does a swivel joint need regular maintenance?
A: Yes, but it's minimal. Keep the external surfaces clean, check for visible leaks around the seals, and lubricate bearings if the design allows. Most manufacturers recommend a visual inspection every 200‑500 operating hours, and seal replacement when you notice even a small drip.
Q: What causes most swivel joint failures?
A: Contamination is the number‑one culprit-dirt or metal particles scoring the sealing surfaces. Over‑pressurisation and running the joint dry (no fluid lubrication) are close seconds. Using the correct filtration and staying within the rated pressure limits will extend service life significantly.
DUCUMENTS:
CATALOG
INNSTALLATION INSTRUCTION
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