Compact configurable pumping unit based on the JFB-63/81 turbomolecular pump. The high-vacuum stage provides 85 L/s for nitrogen, with LF63 and CF63 unit configurations listed in the CBVAC product inventory.
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Description
CBVAC JFJ-63 High-Vacuum Pumping Unit
The JFJ-63 is a configurable high-vacuum unit centered on the compact JFB-63/81 turbomolecular pump. Backing pump, valves, gauge, frame and control scope are selected for the application.
| High-vacuum pump | CBVAC JFB-63/81 |
|---|---|
| Pumping speed | 85 L/s nitrogen; 55 L/s helium |
| Ultimate pressure of turbopump stage | Down to 5 × 10−7 Pa with CF inlet; <8 × 10−6 Pa with LF/ISO-K-type inlet under stated conditions |
| Main unit versions | LF63 or CF63 in current CBVAC inventory |
| Recommended backing-pump speed | 0.5–2 L/s for the turbopump |
| Turbopump controller | Integrated JFB-I, 24 V DC; RS-485 Modbus RTU |
| Cooling | Natural convection, air or water depending on gas load |
| Approximate unit weight | 32–38 kg in the current inventory, configuration-dependent |
Confirm the unit ordering code, backing-pump type, gauge, valves, venting, flange, cooling and electrical scope. The legacy source page asserted LeakLab supply and service without evidence; no representation claim is made here.
