VBMD Series Magnetically-Coupled Rotary Feedthroughs
Our VBMD series feedthroughs are equipped with a magnetically-coupled shaft and are available in two flange sizes . They are capable of full 360º rotation and can be operated manually or optionally by 2 phase stepper motor or pneumatic drive. Compared to mechanical bellows rotary drive, magnetic drives can be more durable in high RPM motorised applications. Manual versions offer a lower cost solution where limited torque is required and backlash is unimportant.
Key Features
- Flange sizes from DN16CF-DN40CF as standard
- Manually driven, optionally with 2 phase NEMA23 stepper motor or pneumatic actuator
- Motor options with handwheel at the rear of the motor for manual operation
- Bakeable to 230ºC (motor must be removed for bakeout for the motorised version, manual version can be baked as-is)
- Pressure range 1 bar to 10-11 mbar
- Flanges from 316LN, tube from 316L stainless steel
- If you require a different shaft length, shaft end modification different motor or different flange, please ask us.
| Part No. | Flange size | Shaft length in vacuum (mm) | Shaft diameter (mm) | Motor type | Max. transferrable torque (Nm) | Angular range | Angular backlash ("play") | Max. Rotation Speed (U/min) | External length (mm) | External diameter (mm) | Weight (kg) | Safety cover | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VBMD16M | DN16CF | 50 | 5 | None/Manual | 0.15 | 0-360º | 2º | 44 | 36 | 0.2 | |||
| VBMD16M | |||||||||||||
| VBMD16MP | DN16CF | 50 | 5 | Pneumatic | 0.15 | +/-90º | 2º | ||||||
| VBMD16MP | |||||||||||||
| VBMDFH40 | DN40CF | 75 | 10 | None/Manual | 1.6 | 0-360º | 0.1º | 1000 | 81 | 57 | 1.0 | ||
| VBMDFH40 | |||||||||||||
| VBMDF40S2 | DN40CF | 75 | 10 | 2 Phase PKP 268 MD 28B (Oriental) NEMA 23 | 1.6 | 0-360º | 0.1º | 1000 | 180 | 69.5 | 2.3 | ||
| VBMDF40S2 | |||||||||||||
| MDFA40S2 | DN40CF | 75 | 10 | 2 Phase PKP 268 MD 28B (Oriental) NEMA 23 | 1.6 | 0-360º | 0.1º | 1000 | 180 | 69.5 | 2.3 | Yes | |
| MDFA40S2 |
