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Boki 4552

Ideal for confined spaces!

Reform's Boki 4552 is a compact mobile excavator with a boom reach of up to 6,500 mm. With an external width of 1.22 m combined with 4 different steering modes, the Boki 4552 gives you perfect positioning, even in confined spaces. With a top speed of up to 40 km/h, the Boki 4552 can be quickly transferred between different work sites.

The reach can be selected with 3 different booms with telescopic arms; either a reach of 4,800 mm/5,600 mm or 6,500 mm is available.

The Boki 4552 has a tilting cab, which makes maintenance much easier. Inside the cab, what first catches the eye is the ergonomically designed driver seat with integrated pilot valves in the arm rests to prevent relative movements. The two-lever cross control with pilot-operated valves also makes working considerably easier.

The benefits at a glance


52 kW/71 hp
2,600 rpm nominal speed
Emission stage 3B


4-wheel chassis
Hydrostatic 4-wheel drive
4 wheel steering
Drum brake
Track width 1,220 mm
Tyres 205/75 R 16 C
20/25/30 or 40 km/h

Operating characteristics

Overhang 4800 mm
Lifting force 830 kP at 3,000 mm
Endlessly rotating upper structure

Hydraulic system

Hydraulic pump 1 x 70 l/min
at 210 bar
2-lever joystick control

Technical data

Power52 kW/71 hp
Dead weightfrom 4,800 kg
Wheelbase1,530 mm
Height in transport position2,620 mm
Maximum reach without telescopic arm4,800 mm
Maximum reach with telescopic arm6,500 mm
Excavation depth without telescopic arm2,700 mm
Excavation depth with telescopic arm4,370 mm
Turning radius1,780 mm