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4
English
5.906-246.0 Rev. 01 (09/14)
These devices are the new top models among the mobile
high-pressure cleaners of the mid-range. Their compact
and vertical design allows easy handling and space-saving
storage.
Note
HD 7/18-4 M/MX
Pressure switch control with 2-phase switching.
–
3 piston axial pump with stainless steel piston
–
Piston with ceramic coating, with HD 9/20 only
–
Cylinder head and water inlet made of brass
–
High-pressure and suction valves made of stainless
steel
–
Direct shutoff with closed gun via pressure switch con-
trol
–
Overflow valve for pressure and quantity regulation
–
Control injector
–
Pressure holding valve
–
Manometer
–
Detergent injector
–
Detergent check valve
–
Switch CHEM system, continuously adjustable 2-way
dosing valve at the back of the device.
–
Power switch with overload protection
–
Pressure switch control
Note
HD 7/18 devices only
–
Pressure switch control with 2-phase switching
4
Technical Features
4.1
Drive
4-pin, electro mo-
tor
Cooling
rpm
Voltage/cur-
rent type
HD 6/16-4 M/MX
Air-cooled
1400
230 V / 1~ /
50 Hz
HD 7/18-4 M/MX
Air-cooled
1400
400 V / 3~ /
50 Hz
HD 9/20-4 M/MX
Water-cooled 1400
400 V / 3~ /
50 Hz
2-pin, electro mo-
tor
Cooling
rpm
Voltage/cur-
rent type
HD 9/19 M/MX
Air-cooled
2800
400 V / 3~ /
50 Hz
4.2
Pump
Device
Piston diam-
eter in mm
Special features
HD 6/16-4 M/MX
16
Piston with piston
domes
HD 7/18-4 M/MX
18
Piston with piston
domes
HD 9/19 M/MX
16
Piston with piston
domes
HD 9/20-4 M/MX
20
Piston with piston
shoes
4.3
Detergent system
4.4
Electrical system