Products
【Machine Tools】 ESX20V-E Series Rotary Joint for Coolant-Through (Hollow Motor Type)
Rotary Joint
Features
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Compatible with sizes recommended by major motor manufacturers
(Other spindles are also available) - Applicable to coolant, oil mist, and dry air
- Highly durable mechanical seal made of special ceramic
- Internal seal structure for smooth stroke and sealing performance
- Rotation without fluid supply is possible
Fluid
| Coolant | Oil mist | Dry air | |
| Pressure (MPa) |
0.5 ~ 14 |
0.3 ~ 1 | 0.3 ~ 1 |
| Pressure (psi) |
72.5 ~ 2,030 |
43.5 ~ 145 | 43.5 ~ 145 |
| Pressure (bar) |
5 ~ 140 |
3 ~ 10 | 3 ~ 10 |
Operating specification
| Specification | Flow rate (Coolant) | Max. speed | Max. temp | Stroke (Axial movement) |
| Below 28 L/min | Max. 40,000 min-1 | Max. 60 ℃ | Max. 4.5 mm | |
| Below 7.40 gal/min | Max. 40,000 rpm | Max. 140 ℉ |
Installation direction
| Direction | Horizontal | Vertical (Rotating part is upper side) | Vertical (Rotating part is lower side) |
| ✔ | ✔ | ✔ |
Installation specification
| Specification | Rotation without fluid |
Min flow rate to operate seal (In case fluid is coolant) |
Thrust loading to spindle side |
| ✔ | Over 10 L/min | 873 N | |
| Over 2.64 gal/min |
Notes
1. Rotation without fluid: Rotation of the rotary joint without fluid supply. (dry running)
2. Minimum seal operating flow rate: When the fluid is coolant.
3. Thrust loading to spindle side: When the fluid pressure is 7 MPa (proportional to fluid pressure).
Outline drawings and Installation dimensions
*Please download catalog to check details of dimensions.
Catalog download
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ROTALY JOINTS for Machine Tools
Catalog
Rotary Joint
