Edwards E2M1.5 Two-Stage Rotary Vane Vacuum Pump - 1 cfm

Compact, reliable, and quiet, this two-stage oil-sealed rotary vane pump delivers consistent medium/rough vacuum performance for lab and industrial workflows. With up to 1.18 CFM pumping speed (60 Hz) and an ultimate pressure down to 2.25 mTorr , it’s ideal for evacuation, degassing, drying, filtration, and GC/MS foreline duties.
Engineered with DN 10 ISO-KF inlet, 11 mm nozzle / 3/4" BSPP female outlet, IE2 efficiency motor, and IP44 protection. Air-cooled operation keeps sound to just 55 dB(A) while the compact footprint (0.323 m L × 0.142 m W × 0.178 m H) fits tight benches.
Runs on 100–120 V, 50/60 Hz, single-phase with 160 W rated power. Uses Edwards 45 vacuum oil. Note: regional power cable not included; some variants require hard-wiring.

Always operate within specified temperature and altitude limits for optimal life and performance.
1.18 CFM @ 60 Hz Ultimate 2.25 mTorr DN 10 ISO-KF Inlet 55 dB(A) Quiet
Quiet Operation: ≤ 55 dB(A) with forced-air cooling for a better work environment.
Clean, Stable Vacuum: Two-stage design achieves 2.25 mTorr ultimate for consistent results.
Compact & Efficient: IE2 motor, IP44 protection, and 160 W rated power.
Instruction Manual Maintenance Kit Manual
Why this rotary vane pump?

Trusted performance — 1.18 CFM @ 60 Hz pumping speed; 0.942 CFM @ 50 Hz .
Deep ultimate vacuum — down to 2.25 mTorr (18.75 mTorr with gas ballast).
Easy integration — DN 10 ISO-KF inlet; 11 mm nozzle / 3/4" BSPP outlet.
Lab-ready power — 100–120 V, 1-Ph, 50/60 Hz ; 160 W rated.
Quiet & compact — just 55 dB(A) with a small footprint to save bench space.
Technical Specifications
Model
Two-Stage Oil Rotary Vane Vacuum Pump
Inlet / Outlet
DN 10 ISO-KF inlet / 11 mm nozzle, 3/4" BSPP (G 3/4") female outlet
Pumping Speed (60 Hz)
1.18 CFM (Air/N 2 )
Pumping Speed (50 Hz)
0.942 CFM (Air/N 2 )
Ultimate Pressure
2.25 mTorr (3.0×10 -3 mbar)
Ultimate w/ Gas Ballast
18.75 mTorr
Power / Frequency
160 W total rated @ 50/60 Hz; 1-Ph 100–120 V
Noise / Cooling
55 dB(A) / Forced air-cooling (fan)
Dimensions (L × W × H)
0.323 m × 0.142 m × 0.178 m
Weight
10.00 kg
Ingress / Motor Class
IP44 / IE2
Electrical Connector
IEC EN60320 C14 (mates with C13 mains cable)
Certifications
UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12
Operating Limits
Ambient 12–40 °C (285.15–313.15 K); Storage −30–70 °C (243.15–343.15 K); Altitude ≤ 2000 m
FAQ

What vacuum range does this pump cover?

It is suitable for medium to rough vacuum applications (approx. 1000 mbar to 1×10 −3 mbar), achieving an ultimate pressure of 2.25 mTorr in clean conditions.
Which oil should I use and how much?

Use Edwards 45 oil. Typical oil capacity is 0.20–0.28 L (2.0×10 −4 to 2.8×10 −4 m 3 ) depending on service level.
Does it include a power cable?

The required mains cable is not included . Some variants require hard-wiring—verify local electrical requirements before installation.
What are the ambient operating limits?

Operate between 12–40 °C ambient (285.15–313.15 K) up to 2000 m altitude. Store between −30–70 °C (243.15–343.15 K).