Overview:
The nEXT is a hybrid bearing compound turbomolecular pump. nEXT pumps combine our proven bearing technology (oil lubricated ceramic lower bearing with dry permanent magnetic upper bearing), an improved rotor design with a new molecular drag stage to deliver improved pumping speed and compression ratios, and user serviceability. They feature 24 V to 48 V d.c. sensor less motors with a built in drive that is fully compatible with our range of TAG and TIC controllers. They are available pre-set for either 80 W or 160 W maximum power, the former enabling use with our 100 W TIC controllers are also recommended for pumping Argon, but with a longer ramp time to full operating speed.
Features & Benefits:
• Value for money - exceptional pumping speeds and compression ratios
• No unplanned downtime - field proven reliability in the most demanding environments
• Easy integration - standard fit in many scientific instruments
• Reliability for peace of mind - over 200,000 turbomolecular pumps installed
• Low cost of ownership - end user serviceable
Technical Data:
| Inlet flange | DN100ISO-K, DN100CF |
| Outlet flange | DN25NW |
| Pumping speed | |
| N2 | 240 ls-1 |
| He | 230 ls-1 |
| H2 | 165 ls-1 |
| Compression ratio D / T | |
| N2 | >1 × 1011 |
| He | 3 x105 / 1 x106 |
| H2 | 1 x 104 / 1.5 x 104 |
| Ultimate pressure with RV backing pump ISO/CF | <6 x 10-8 / <5 x 10-10 mbar |
| Recommended backing pump* | RV12/nXDS10i |
| Vent port | 1/8 inch BSP female |
| Purge port | 1/8 inch BSP female |
| Max continuous inlet flow (Nitrogen)† | |
| Water cooling (water at 15°C, ambient temp at 40°C) | 45 sccm |
| Forced air cooled, 35 °C ambient | 30 sccm |
| Pump rotational speed | |
| Nominal rotational speed | 60000 rpm |
| Standby rotational speed | Variable from 33000 to 60000 rpm (42000 rpm default) |
| Programmable power limit settings | Variable from 50-200W (160W default) |
| Start time to 90% speed D / T 160 W | 115 / 140 |
| Analogue outputs |
Pump rotational speed; Power consumption; Pump temp; Controller temp |
| Cooling method# | Forced air / water |
| Ambient air temp for forced air cooling | 5 - 35°C |
| Min cooling water flow rate (water 15°C) | 15 l h-1 |
| Water temp range | 10 - 20°C |
| Max inlet flange temp | 75°C |
| Operating attitude |
Vertical and upright, through to Horizontal +/- 2° |
| Noise level at 1 metre | <45 dB(A) |
| Max magnetic field pump can tolerate | 5 mT |
| Recommended controller | TIC200 turbo and instrument controller |
| Quiescent electrical power | Typically 20W |
Malaysia
