Special Joint
We are ready to serve any requirements concerning rotary and movable connections for water, steam, air, thermal oil, hydraulic oil, gas, chemicals and vacuum service.
1. Pearl Center Joints We manufacture from 2 ports to 30 ports to meet your purpose.
Shield machine
A rotary joint for transporting and supplying several types of pressure fluids having different pressure and properties to a rotating body without merging the flow passages.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Hydraulic oil, Grease, Mud producing material |
| Number of Ports | 15 ports |
| Max. Pressure | 21MPa (3045 psi) |
| Max. Rotation Speed | 1min-1 |
Recommended Product
Multiport product with mechanical seals
A multiport rotary joint with mechanical seals. This can be used at higher rotation speed compared to a multiport product with elastic seals.
※We have delivered products with up to six ports.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Water, Air |
| Number of Ports | 3 ports |
| Max. Pressure | 0.5MPa (72.5 psi) |
| Max. Rotation Speed | 500min-1 |
Mud gun / Opening machine
A rotary joint for transporting and supplying several types of pressure fluids having different pressure and properties to a rotating body without merging the flow passages.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Hydraulic oil, Gas |
| Number of Ports | 16 ports |
| Max. Pressure | 20.6MPa (2987 psi) |
| Max. Rotation Speed | Low-speed rotation |
Turn table
This rotary joint can divide pressurized fluid fed through a fixed piping having a single flow path into multiple ports and supply fluid to the rotating body.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Oil, Water |
| Number of Ports | 65Ax1P 25Ax1P |
| Max. Pressure | ‐ |
| Max. Rotation Speed | Low-speed rotations |
Ladle turret
A rotary joint for transporting and supplying several types of pressure fluids having different pressure and properties to a rotating body without merging the flow passages.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Hydraulic oil, Air |
| Number of Ports | 6 ports |
| Max. Pressure | 13.7Mpa (1987 psi) |
| Max. Rotation Speed | 1min-1 |
2. Pearl Rotary Joints (Special product)
Recommended Product
SR1417
A rotary joint developed for high-pressure washers.
The main section consists of stainless steel parts only. Most suitable for use in clean environment.
We have adopted mechanical seals and the bearing structure that can be used under a high-pressure condition.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Water-basd cleaner |
| Max. Pressure | 15MPa (2176 psi) |
| Max. Temperature | 80 degrees C (176 degrees F) |
| Max. Rotation Speed | 10A : 300min-1 15A : 200min-1 20A : 150min-1 25A : 100min-1 |
Recommended Product
Low-speed rotary joint, OPM series
A rotary joint suitable for operation at low rotation speed. This can be used for non-rotating or intermittent rotating operation.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Water, Steam, Thermal oil |
| Max. Pressure | 1.47MPa (213 psi) |
| Max. Temperature | 230 degrees C (446 degrees F) |
| Max. Rotation Speed | 10min-1 |
Recommended Product
Available for dry air, SX3015
A newly developed high-speed rotary joint. Porous ceramics is used as a seal material and the grease is filled in the mechanical seal section, allowing the use in a dry air condition.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Air, Water, Cutting oil, Oil |
| Max. Pressure |
Air ：1MPa (145 psi) Water, Cutting oil, Oil ：3MPa (435 psi) |
| Max. Temperature |
Air ：60 degrees C (140 degrees F) Water, Cutting oil, Oil ：110 degrees C (230 degrees F) |
| Max. Rotation Speed |
Air ：6,000min-1 Water, Cutting oil, Oil ：10,000min-1 |
Available for dry air, RXS type
An RXS type rotary joint that the grease is filled in the mechanical seal section for use in a dry air condition.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Air |
| Service Pressure | 0.7MPa (101 psi) |
| Service Temperature | 80 degrees C (176 degrees F) |
| Max. Rotation Speed | 1,400min-1 |
SC series
A rotary joint for dyeing/drying cylinder.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Saturated Steam |
| Max. Pressure | 0.29MPa (42.1 psi) |
| Max. Temperature | 130 degrees C (266 degrees F) |
| Max. Rotation Speed | - |
For successive casting facility
An SCFW type rotary joint.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Industrial water |
| Max. Pressure | 0.98MPa (142 psi) |
| Max. Temperature | 100 degrees C (212 degrees F) |
| Max. Rotation Speed | - |
For corrugate machine
A product designed and produced based on NC series products.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Saturated Steam |
| Max. Pressure | 1.47MPa (213 psi) |
| Max. Temperature | 180 degree C (356 degrees F) |
| Max. Rotation Speed | 300min-1 |
Recommended Product
Large joint
A rotary joint used in a situation where steam is supplied to a roll and steam condensate is collected through an internal pile. Size is 450A, one of the world's largest rotary joint.
3. Pearl Swivel Joints
CO type, Movable pipeline
A movable pipeline consisting of a combination of CO type swivel joints (for low pressure) and pipes. We design and produce your product based on the operating range on the movable side and service conditions.
Recommended Product
SRK type, Movable pipeline
A movable pipeline consisting of a combination of SRK type swivel joints (for high pressure) and pipes. We design and produce your product based on the operating range on the movable side and service conditions.
- Application
1. Rolling mill equipment for steel manufacturing
2. Various hydraulic piping
3. Other piping for high pressure medium movable in two dimensions and three dimensions.
etc.
Recommended Product
CSO type, Swivel joint
A swivel joint that can be used under water. A waterproof product designed and produced based on CS series products. The ball plug and the plug thread are coated with liquid packing.
※CSL type (quasi-standard specification product, option code:L) of CS series is also a product that can be used under water.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | - |
| Max. Pressure | 2.1MPa (304 psi) |
| Max. Temperature | 100 degrees C (212 degrees F) [Main seal NBR.] |
Recommended Product
SK type, Swivel joint
A high-pressure swivel joint designed and produced based on SRK series products.
※We have delivered high-pressure swivel joints with the size up to 200A. Max. pressure is 35MPa.
| SERVICE CONDITIONS etc. | |
|---|---|
| Fluid | Hydraulic oil, Water |
| Max. Pressure | 24.5MPa (3553 psi) |
| Max. Temperature | 100 degrees C (212 degrees F) [Main seal NBR.] |
4. Pearl Ball Joints
Ball joint
A ball joint is a joint that can be tilted in a desired direction, and is used for accommodating pipe torsion or changing the direction of the connected pipe. We can provide a ball expansion joint that includes an extendable shaft.
- Application
1. Piping for steel manufacturing equipment
2. Piping for absorbing ground displacement
etc.
If there is anything we can help you with, please do not hesitate to contact us.
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