Edwards nxds Oil Free Dry Scroll Vacuum Pumps

Edwards nxds Oil Free Dry Scroll Vacuum Pumps are advanced oil-free vacuum pumps that deliver clean, reliable vacuum without oil contamination or backstreaming. Using dry scroll technology, these pumps feature hermetically sealed bearings, quiet operation (as low as 52 dB(A)), and long service intervals — up to 5 years between tip seal changes.

Available in standard and corrosion-resistant "C" models, Edwards nXDS pumps are ideal for laboratories, mass spectrometry, electron microscopy, analytical instruments, and any application requiring oil-free, chemically clean vacuum.

Key benefits include low maintenance, excellent water vapor handling, and compact, energy-efficient design.

The Edwards nXDS dry scroll vacuum pump series offers oil-free, quiet, and reliable vacuum performance for laboratory, research, analytical, and light industrial applications. Compare the nXDS6i, nXDS10i, nXDS15i, and nXDS20i models below to select the correct pumping speed, ultimate vacuum, and inlet pressure range for your application.

Model	Peak Pumping Speed	Ultimate Vacuum	Max Inlet Pressure	Weight	Best For
nXDS6i	6.2 m³/h	0.020 mbar	35 mbar	58 lb	Small lab systems
nXDS10i	11.4 m³/h	0.007 mbar	35 mbar	57 lb	Rotary evaporation, general lab
nXDS15i	15.1 m³/h	0.007 mbar	35 mbar	56 lb	Higher flow applications
nXDS20i	22.0 m³/h	0.030 mbar	20 mbar	56 lb	Large systems / fast pumpdown

Frequently Asked Questions (FAQ)

Q1: What is the difference between nXDS and nXDSiC models? The standard nXDS models are ideal for clean vacuum applications. The nXDSiC (Corrosion-Resistant) versions feature Chemraz® valve pads and stainless steel fittings, making them suitable for aggressive chemical vapors, solvents, and corrosive gases.

Q2: Are Edwards nXDS pumps truly oil-free? Yes. All nXDS series pumps use dry scroll technology with hermetically sealed bearings. There is no oil in the vacuum space, eliminating the risk of oil backstreaming or contamination.

Q3: How quiet are nXDS pumps? All models in the nXDS series operate at approximately 52 dB(A), making them among the quietest dry scroll pumps available — suitable for laboratory environments.

Q4: How long do the tip seals last? Under normal conditions, tip seals typically last 3 to 5 years. The “C” models often achieve longer life when used with aggressive chemicals.

Q5: Which nXDS model should I choose?

nXDS6i / nXDS10i → Small labs and benchtop use
nXDS15i → Most popular general-purpose model
nXDS20i → Higher throughput applications
nXDS20i → Maximum pumping speed Choose “C” version if you work with corrosive vapors or solvents.

Q6: Do you offer repair service for nXDS pumps? Yes. We provide expert repair and tip seal replacement services for all Edwards nXDS models with fast turnaround.

Q7: What power supply do nXDS pumps use? All models run on single-phase 100-127V or 200-240V, 50/60 Hz with universal voltage and frequency support via the integrated inverter drive.

Q8: Are replacement parts and service kits available? Yes. We stock tip seal kits, bearing kits, and major service parts for the entire nXDS series.