VBMR Series Magnetically-Coupled Hollow Rotary Feedthroughs
Our VBMR series feedthroughs are equipped with a magnetically-driven sub-flange and are available in two sizes . They are capable of full continuous 360º rotation driven by 2 phase stepper motor. Unlike our DDF series, because they are magnetically-driven, no differentially-pumped seal is required, leading to enhanced durability and vacuum performance, especially when fast rotation is needed. They include a rotary table with tapped holes on the vacuum side.
Key Features
- Base flange sizes DN63CF or DN100CF (through holes)
- Moving flange sizes DN40CF and DN63CF (tapped holes)
- In-vacuum rotary table with M4 holes for mounting customer equipment
- Driven by 2 phase NEMA23 stepper motor
- Bakeable to 230ºC (motor and toothed belt must be removed for bakeout)
- Pressure range 1 bar to 10-11 mbar
- Flanges from 316LN, tube from 316L stainless steel
- Optional limit switches and other motor types on request (please ask!)
| Part No. | Base flange size | Top flange size | Motor type | Max. transferrable torque (Nm) | Angular range | Angular resolution | Max. Rotation Speed (U/min) | Weight (kg) | |
|---|---|---|---|---|---|---|---|---|---|
| VBMR63/40S2 | DN63CF | DN40CF | 2 Phase PKP 268 MD 28B (Oriental) NEMA 23 | 4 | 0-360º (1:2 gearing) | <0.1º | 60 | 4.9 | |
| VBMR63/40S2 | |||||||||
| VBMR100/63S2 | DN100CF | DN63CF | 2 Phase PKP 268 MD 28B (Oriental) NEMA 23 | 4 | 0-360º (1:2 gearing) | <0.1º | 60 | 12.5 | |
| VBMR100/63S2 |
