Nilfisk 3997 – 3997W

First class power

For very heavy duty and continuous service. This 3 phase vacuum is the most powerful mobile vacuum unit in the Nilfisk IVS range and has the ability to collect large quanities of heavy material found in a variety of industries.

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Description
Specification

The 3997 and 3997W have a 22 kW, three phase, aluminium casting induction motor directly driving the fan. The suction unit is run by an electronic control box utilising soft start technology which reduces power consumption during start up. An external electric filter shaker enables easy and efficient filter cleaning. The “L” class star filter is mounted in the machine as standard and guarantees efficient filtration. A cyclone plate is incorporated into the filter chamber and aids filter protection. With a 175 litre capacity waste container, they are designed for heavy duty use and continuous service. Fitted with the drop down realease mechanism as standard ensures ease of removal and emptying. The machine body and chassis are manufactured to ensure stability, robustness and a long service life.

- Heavy duty vacuums
- Continuous running
- Reduced maintenance
- Standard electric filter shaker
- High suction levels
- Filter monitoring
- Bin lifting accessories availability
- L, M, H and stainless steel versions

Product details	3997	3997 C	3997 W
Voltage (V)	400	400	400
Frequency (Hz)	50	50	50
IP protection class	55	55	55
Insulation class	F	F	F
Sound pressure level at 1.5 m (dB(A) ISO 3744)	79	79	78
Container capacity (l)	175	175	175
Main filter area (cm²)	66000	110000	66000
Inlet (mm)	100	120	100
Weight (kg)	650	697	650
Rated power (kW)	20	20	20
Airflow without hose (m³/h – l/m)	1116 – 18600	1116 – 18600	2160 – 36000
Max. vacuum (kPa – mbar)	44 – 440	44 – 440	25 – 250
Length x width x height (mm)	2000x900x2150	2000x900x2150	2000x900x2150