EXT556H
MODEL WYCOFANY Z PRODUKCJI
The EXT556H incorporates our hybrid bearing and enhanced molecular drag pumping technologies with turbopump stages on a single rotor. It is an 80V pump and therefore must be used with an EXC300 controller. The EXC300 is a fully featured controller with a user panel, backing pump relay and bake-out band control. It is rack mountable and can power an air cooler and control a vent valve as well as the turbopump.
A basic pump system would require an EXT556H pump, an EXC300 controller, a pump to controller cable, either an air or water cooler accessory, and a suitable backing pump.
Features and Benefits
- High critical backing pressure
- High volume flow rate - fast pump down
- Multistage Holweck molecular drag mechanism gives high compression ration for light gases
- Ultimate vacuum <10-10 mbar
- Proven EXT performance and reliability
- Hybrid bearing configuration
- Maintenance free – oil bearing reservoir sealed for life
- Machined monobloc rotor
- DC motor drive
| Main Inlet flange | DN160ISO-K/DN160CF |
| Outlet Flange | DN25NW |
| Vent/purge port | 1/8 inch BSP |
| Inlet pumping speed* (compression ratio) | |
| N2 | 540 ls-1 (>1010) |
| He | 580 ls-1 (108) |
| H2 | 500 ls-1 (106) |
| Ar | 510 ls-1 (>1010) |
| Ultimate Pressure (CF variant) | <10-10 mbar |
| Recommended backing pump | RV12/nXDS10i |
| Max continuous inlet pressure (N2, He, H2)** | |
| forced air cooled, 30 °C ambient | 1 x 10-3 mbar |
| forced air cooled, 35 °C ambient | 5 x 10-4 mbar |
| water cooling at 15 °C | 2 x 10-3 mbar |
| Nominal rotational speed | 50000 rpm |
| Start time to 90% speed | |
| EXC300 | 6.5 min |
| Cooling method | Forced air/water |
| Ambient air temp for forced air cooling | 0 °C - 35 °C |
| Recommended cooling water flow rate (water at 15°C) |
15 lh-1 |
| Water temp range | 10 - 20 °C |
| Max inlet flange temp | 80 °C |
| Operating attitude | Vertical and upright, through to horizontal |
| Noise level at 1 metre | <60 dB(A) |
| Max axial magnetic field | <7 mT |
| Max radial magnetic field | <3 mT |
| Recommended controller | EXC300 |
| Quiescent power consumption | 35 W |
| Electrical supply voltage | |
| Electrical supply frequency (EXC250/300) | 47 – 63 Hz |
| Max power output for pump | |
| EXC300 | 290W |
| Weight | |
| EXT556H ISO/CF | 13.4/21.2 kg |
| EXT556HF ISO/CF | 19.3/20.5 kg |
| EXC300 | 4.6 kg |
* Measured without inlet screen. Inlet screens are supplied fitted and may reduce speed by up to 20%
** With backing pressure <0.3 mbar. Above this inlet pressure rotational speed drops