Pompa turbomolekularna nEXT400D ISO160 z kołnierzem wlotowym 160 W

Pompa turbomolekularna nEXT400D ISO160 z kołnierzem wlotowym 160 W

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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.


New technologies employed in nEXT have enabled the pumps to be serviced in the field. An interim oil lubrication change can be performed, where access allows, in-situ, typically in less than 5 minutes with the minimum of specialist tooling. A bearing and oil lubrication service, with minimum disassembly can be performed in less than 10 minutes using basic workshop tools and an Edwards tool kit.

nEXT pumps will advise the user when a service is due and what level of intervention is required. The request for service is by a simple flashing LED sequence on the pumps, and by serial comms notification.

Flexibility is again key as these simple services can be performed either by the end user, on site by an Edwards Field Service Technician or the pump can be returned to an Edwards service hub.

If required, by using remote diagnostics, a user can also interrogate the pump to determine how long it is to the next service, so that a proactive approach to PM can be accommodated.


Features and 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 DN160ISO-K, DN160CF
Outlet flange DN25NW
Pumping speed  
  N2 400 ls-1
  He 400 ls-1
  H2 325 ls-1
Compression ratio D / T  
  N2 >1 × 1011
  He 1 x 108  / >1 x 108
  H2 5 x 105 / 1 x 106
Ultimate pressure with RV backing pump ISO/CF <1 x 10-8 / <1 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) 105 sccm
Forced air cooled, 35 °C ambient 90 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 175s / 200s
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 70°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 20 W

*  A smaller backing pump may be used depending on application. A suitable diaphragm pump with ultimate <5 mbar may also be used e.g. XDD1.
†  Above this inlet pressure, rotational speed drops to below nominal. 
#  Air and water cooling accessories must be ordered separately