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Rotary unions
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Multi-passage rotary union - Rotostat N
GAT's Rotostat N series are axial clearance seals which are controlled hydrostatically. They contain a complex, inverse hydrostatic gap regulator guarantees even under high pressures,...
Multi-passage rotary union - Rotostat N
GAT's Rotostat N series are axial clearance seals which are controlled hydrostatically. They contain a complex, inverse hydrostatic gap regulator guarantees even under high pressures, the gap between stationary and rotating machinery parts is maintained at a few microns, thus the spillage is very small.
The series is susceptible to the alterations of the temperature and the surges of pressure because its layout is complied to handle stress. It is recommended to rough applications like pusher centrifuges, coilers in mills, propeller adjustment in ships, and blade adjustment in water turbines. Meanwhile, the series is available as a cartridge for installation in customers’ own constructions.
The series is susceptible to the alterations of the temperature and the surges of pressure because its layout is complied to handle stress. It is recommended to rough applications like pusher centrifuges, coilers in mills, propeller adjustment in ships, and blade adjustment in water turbines. Meanwhile, the series is available as a cartridge for installation in customers’ own constructions.
Large dimension rotary union / custom - Ø 600 mm, 350 kg, 100 bar, 10 rpm | Rotostat E
The Rotostat E is a compact rotary union with hydrostatically aligned radial clearance seals. Usable in a wide variety of applications,...
Large dimension rotary union / custom - Ø 600 mm, 350 kg, 100 bar, 10 rpm | Rotostat E
The Rotostat E is a compact rotary union with hydrostatically aligned radial clearance seals. Usable in a wide variety of applications, such as clamping in tooling machines or as a coolant to screw extruders, this device works excellently on oil, water, and air media, and under pressure ratings of up to 600 bars at 40,000 rpm.
With GAT's patented sealing technology, Rotostat E guarantees a substantially long service life and does not get easily worn out. Unlike other rotary unions, it does not produce any vibrations.
With GAT's patented sealing technology, Rotostat E guarantees a substantially long service life and does not get easily worn out. Unlike other rotary unions, it does not produce any vibrations.
Multi-passage rotary union - Rotostat A
GAT's Rotostat A are hydrostatic clearance seals, integrated with an axial-operated mechanism. The seals feature their light construction enabling the components such as oil, emulsion, and...
Multi-passage rotary union - Rotostat A
GAT's Rotostat A are hydrostatic clearance seals, integrated with an axial-operated mechanism. The seals feature their light construction enabling the components such as oil, emulsion, and other non-greasy liquids, air and gases to be supplied through it. It also provides compactness allowing operations to be done in limited areas. A patented hydrostatic gap regulator is offered by the series guaranteeing a consistent size of gap resulting to a very small leakage.
The application field of the Rotostat A involves the installation in tool machinery for supplying hydraulic oil for clamping purposes, as well as the supplying of coolants and pressurized air. It offers long service life containing pressure up to 80 bar at 30 000 rpm.
The application field of the Rotostat A involves the installation in tool machinery for supplying hydraulic oil for clamping purposes, as well as the supplying of coolants and pressurized air. It offers long service life containing pressure up to 80 bar at 30 000 rpm.
Single-channel rotary union - Rotodisk S
The Rotation speed up to 100,000 rpm is possible.
230 bar pressure is possible.
Ceramic contact seals enable long service life.
NO leakage when the flow of the medium stops.
Can be used for dry operation as well.
Various...
230 bar pressure is possible.
Ceramic contact seals enable long service life.
NO leakage when the flow of the medium stops.
Can be used for dry operation as well.
Various...
Single-channel rotary union - Rotodisk S
The Rotation speed up to 100,000 rpm is possible.
230 bar pressure is possible.
Ceramic contact seals enable long service life.
NO leakage when the flow of the medium stops.
Can be used for dry operation as well.
Various connection variations are available.
Function and Design
The Rotodisk S series are axial rotary unions with hydro-statically released contact seals and an automatic alignment compensation system and are single channeled. This enables the contact seals to have perfect full surface contact always.
The influence of the pressure of the medium on the moment of friction negligible is due to the hydro-static release. The wear is minimized due to a very small amount of friction because of the combinations of this system.
The advantage of this technology is that Rotodisk S, at the simultaneous high pressure of 80 bar and the very high operating speeds of 60,000 rpm , and can be operated reliably.
230 bar pressure is possible.
Ceramic contact seals enable long service life.
NO leakage when the flow of the medium stops.
Can be used for dry operation as well.
Various connection variations are available.
Function and Design
The Rotodisk S series are axial rotary unions with hydro-statically released contact seals and an automatic alignment compensation system and are single channeled. This enables the contact seals to have perfect full surface contact always.
The influence of the pressure of the medium on the moment of friction negligible is due to the hydro-static release. The wear is minimized due to a very small amount of friction because of the combinations of this system.
The advantage of this technology is that Rotodisk S, at the simultaneous high pressure of 80 bar and the very high operating speeds of 60,000 rpm , and can be operated reliably.
Machine tool rotary union - Rotodisk SW
GAT Rotodisk SW series rotary unions have a radial coolant supply. They have a very compact cartridge design. They can handle pressure of 70 bars at 6000...
Machine tool rotary union - Rotodisk SW
GAT Rotodisk SW series rotary unions have a radial coolant supply. They have a very compact cartridge design. They can handle pressure of 70 bars at 6000 rpm. The unions are single-channel type. They have been designed for applications, which require radial supply of medium into the shaft with low leakage, and also have less installation space. Examples include milling heads or driven devices.
Standard installation dimensions were employed to facilitate easy integration into the present spindle. A long service life is ensured by the selected materials used in friction partners.
Standard installation dimensions were employed to facilitate easy integration into the present spindle. A long service life is ensured by the selected materials used in friction partners.
2-passage rotary union / oil / coolant / air - 3 500 rpm, 105 bar, 120 °C | GA series
The GAI rotary unions, manufactured by Kãdant, features a compact, smooth and vibration-less...
2-passage rotary union / oil / coolant / air - 3 500 rpm, 105 bar, 120 °C | GA series
The GAI rotary unions, manufactured by Kãdant, features a compact, smooth and vibration-less...
Machine tool rotary union - 3 500 rpm, 70 bar, 120 °C | GAI series
The GAI internal mounted rotary unions, manufactured by Kãdant,...
Machine tool rotary union - 3 500 rpm, 70 bar, 120 °C | GAI series
The GAI internal mounted rotary unions, manufactured by Kãdant,...
Machine tool rotary union - 15 000 rpm, 80 bar, 90 °C | GFL/GFLA series
With an anodized aluminum body, Type GFL boasts a special seal design which allows dry running while maintaining seal balance ratio at optimal levels to keep friction at a minimum. Vibration and...
Machine tool rotary union - 15 000 rpm, 80 bar, 90 °C | GFL/GFLA series
With an anodized aluminum body, Type GFL boasts a special seal design which allows dry running while maintaining seal balance ratio at optimal levels to keep friction at a minimum. Vibration and wobbling are prevented, thanks to the wide spaces between the precision angular contact bearings, which are in turn protected by labyrinth seal and drain holes.
Air quality is also improved by this device's ability to reduce coolant misting, even as it prevents leakages during tool changes. It generates very low heat, and also keeps vibration low. It comes with a closing ring, which is useful for proximity sensing drawbar position.
Type GFL is also available for rotation with compressed air, and can be supplied with additional bearings, if needed.
Air quality is also improved by this device's ability to reduce coolant misting, even as it prevents leakages during tool changes. It generates very low heat, and also keeps vibration low. It comes with a closing ring, which is useful for proximity sensing drawbar position.
Type GFL is also available for rotation with compressed air, and can be supplied with additional bearings, if needed.
Machine tool rotary union - 20 000 rpm, 80 bar, 90 °C | GFS, GFSA series
The GFS, GFSA series manufactured by Johnson Fluiten, is a rotary union designed for machine tool applications. This tool features a specialized...
Machine tool rotary union - 20 000 rpm, 80 bar, 90 °C | GFS, GFSA series
The GFS, GFSA series manufactured by Johnson Fluiten, is a rotary union designed for machine tool applications. This tool features a specialized design and an optimized seal balance that allows a dry running performance, and decrease in friction. Moreover, it is composed of an anodized aluminum body with a high precision angular contact bearings, to remove the vibration.
This Johnson Fluiten rotary union highlights a low heat generation in bearings or mechanical seal. It also promotes no leakage during the tool change commutation.
This Johnson Fluiten rotary union highlights a low heat generation in bearings or mechanical seal. It also promotes no leakage during the tool change commutation.
Precision rotary union - 32 000 rpm, 150 bar | GHP, GHPA
The type GHP/GHPA has been manufactured out of an anodized aluminum frame, and features a special seal...
Precision rotary union - 32 000 rpm, 150 bar | GHP, GHPA
The type GHP/GHPA has been manufactured out of an anodized aluminum frame, and features a special seal design that allows dry running functions. The apparatus showcases integrated drain holes and a labyrinth seal that both ensure bearing integrity. It also exhibits accurate angular contact bearings that enable operation in high-speed applications. Additional bearings are available upon request.