The E2M28 is a powerful, oil-sealed, two-stage rotary vane vacuum pump designed for demanding industrial and scientific applications. With a pumping speed of 27.5 m³/h and an ultimate pressure of 1.0 x 10⁻³ mbar, it ensures reliable and consistent vacuum performance for processes requiring a deep and stable vacuum.
The two-stage design enables efficient gas handling, fast evacuation, and improved ultimate vacuum performance. The E2M28 is ideal for applications such as vacuum drying, freeze drying, vacuum packaging, research laboratories, coating processes, and other industrial production operations.
This pump stands out for its robust construction, easy maintenance, and low noise level of 57 dB(A), making it suitable for use even in sensitive work environments. It is compatible with ULTRAGRADE™ Performance 19 oil and features an NW25 inlet flange. Thanks to its high reliability and long maintenance intervals, the E2M28 is a cost-effective and durable solution for continuous operation in demanding applications.
E2M28 Technical Data
| Technical Specification | 50 Hz | 60 Hz |
|---|---|---|
| Max. Capacity | 27.5 m3/h-1 | 27.5 m3/h-1 |
| Ultimate Pressure (without Gas Ballast) | 1×10-3 mbar | 1×10-3 mbar |
| Ultimate Pressure (with Gas Ballast) | 1.5×10-2 mbar | 1.5×10-2 mbar |
| Ultimate Pressure (with PFPE Fluid) | 1×10-2 mbar | 1×10-2 mbar |
| Max. Water Vapor Tolerance | 30 mbar | 30 mbar |
| Max. Water Vapor Capacity | 700 g/h | 700 g/h |
| Maximum Continuous Inlet Pressure | 100 mbar a | 100 mbar a |
| Maximum Gas Ballast/Purge Pressure | 0.5 bar gauge | 0.5 bar gauge |
| Supply Voltage | 115/200-230 (+/- 10%) | 115/200-230 (+/- 10%) |
| Motor Power Rating 1-ph | 0.75 kW 50Hz | 0.90 kW 60Hz |
| Motor Power Rating 3-ph | 0.75 kW 50Hz | 0.90 kW 60Hz |
| Nominal Speed | 1440 rpm | 1720 rpm |
| Electrical Connection | IEC EN60320 C19 | IEC EN60320 C19 |
| Weight | 44 kg | 44 kg |
| Recommended Oil | ULTRAGRADE™ Performance 19 | ULTRAGRADE™ Performance 19 |
| Oil Fill (max.) | 1.32 l | 1.32 l |
| Oil Fill (min.) | 1.2 l | 1.2 l |
| Inlet Flange | NW25 | NW25 |
| Exhaust Flange(1) | Nozzle 15 mm OD, removable from 3/4 inch BSP threaded port | Nozzle 15 mm OD, removable from 3/4 inch BSP threaded port |
| Operating Temperature Range | 13 to 40°C | 13 to 40°C |
| Noise Level | 57 dB(A) | 57 dB(A) |
(1) PFPE variants are supplied with NW25 outlet connection
Variant Technical Data
| Product Description | Order Number |
|---|---|
| E2M28 HC 100/200-230V, 50Hz; 100-120V/200-240V 60Hz 1-ph, with IEC60320 connector, factory set to 230V IE2 | A37317984 |
| E2M28 HC EU/US 50/60Hz, 380-400V, 50Hz or 230/460V 60Hz, 3-ph IE3 | A37333940 |
| E2M28 HC Asia 50/60Hz, 200V 50Hz; 200/380V 60Hz, 3-ph IE3 | A37333934 |
| E2M28 HC 100/200V, 50Hz or 100/200V, 60Hz 1-ph, factory set to 200V, IE2 | A37315904 |
| E2M28 FX EU/US 50/60Hz, 380-400V 50Hz or 230/460V 60Hz 3-ph, IE3 | A37343940 |
| E2M28 FX Asia 50/60Hz, 200V, 50/60Hz or 380V 60Hz 3-ph, IE3 | A37343934 |
| E2M28 FX 100/200-230V, 50Hz; 100-120V/200-240V 60Hz 1-ph, with IEC60320 connector, factory set to 230V IE2 | A37325984 |
Accessories
| Product Description | Order Number |
|---|---|
| EMF20 mist filter (suitable for E2M28 in low throughput applications) | A46229000 |
| MF30 mist filter | A46233000 |
| 2m electrical supply cable for 1-ph pumps, UK, three-pin plug | A50505003 |
| 2m electrical supply cable for 1-ph pumps, North European plug | A50506003 |
| 2m electrical supply cable for 1-ph pumps, North America/Japan plug | A50507003 |
| 2m electrical supply cable for 1-ph pumps, no plug | A50508003 |
| Clean and overhaul kit E1M18/E2M18 | A36301131 |
| Spare parts kit (blades) E1M18 | A34301041 |
| Spare parts kit (blades) E2M18 | A36301020 |
| NW25 to 28 mm bore tube adapter | C10520201 |
| ¾ inch BSP to NW25 outlet adapter | C10501414 |
| Clean and overhaul kit E2M28 | A37301131 |
| Blade kit E2M28/30 | A37301135 |
| Acoustic enclosure 110-120V | NRD317000 |
| Acoustic enclosure 200-240V | NRD318000 |
Oil
| Product Description | Order Number |
|---|---|
| ULTRAGRADE™ Performance 19 oil 1 litre | H11025015 |
| ULTRAGRADE™ Performance 19 oil 4 litre | H11025013 |
| XTRAGRADE ADVANCED PFPE 64 (1 litre) | H11041121 |
