Hydraulic Excavator 906

Features
Engine                              CUMMINS B3.3
Type                                 Water-cooled, 4-stroke cycle, direction, turbocharged diesel engine
Cylinder-Bore x Stroke      4-95 x 115mm
Displacement                    3.3L
Rated power                     45kW(60hp)@2200rpm
Maximum net torque          214N.m@1600rpm
Electrical system                24V
Hydraulic system
Main pumps                      Variable displacement piston pump
Maximum flow                   170L/min
Pilot pump                         Gear pump
Relief valve setting
Implement circuits             27.4Mpa(280kg.f/cm³)
Travel circuit                      27.4Mpa(280kg.f/cm³)
Swing circuit                      20.6Mpa(210kg.f/cm³)
Pilot circuit                        3.9Mpa(410kg.f/cm³)
Cylinders                           No. of cylinders-Bore x Stroke
Boom                                 2 x 115 x 864mm
Arm                                   1 x 100 x 867mm
Bucket                               1 x 90 x 710mm
Drives & Brakes
Piston motor and decelerator are integrated that has high traction force and occupy small space and it is installed with hydraulic hoses in the crawl framework to prevent damage from a heavy road. Motor has brake and buffer to assure smooth travel and parking.
Travel speed
High                                   5.2km/h
Low                                   3.6km/h
Grade ability                      35°
Swing Mechanism
High torque piston motor and two-stage planetary reduction gear drive, brake is spring-set hydraulic released. It can be braked automatically when the swing-control-lever in the neutral position.
Swing speed                      12r/min
Undercarriage
Full welded heavy duty under carriage, two side frames are rigidly welded to the center frame. Track roller, carrier roller and idlers are sealed with floating seal. Track is adjusted by grease cylinder, with shock-absorbing spring.
With of track shoes               450mm
Number of carrier rollers       1 each side
Number of track rollers          5 each side
Number of idlers                    1 each side
Number of shoes                   38 each side
Control
All kinds of movements are controlled by pilot-operated. Right lever controls boom and bucket moving. Left lever controls stick and swing. Foot control pilot valve with manually controlled lever to move or swing direction. Travel speed is changed by electric switch.
Coolant & Lubricant Capacity (refilling)
Fuel tank                               135L
Coolant                                  12L
Engine                                    7L
Final drive, each side              1.3L
Swing drive                             1.5L
Hydraulic tank                         60L
Performance data
Max. loading height                5080mm
Max. cutting height                 7150mm
Max. digging depth                 4150mm
Max. reach                              6365mm
Min. turning radius                  1840mm
Max depth of cut for 2.5m level bottom    3875mm
Max. vertical digging depth      3230mm
Max. reach at ground level       6225mm
Max. stick digging force             41kN
Max, bucket digging force          54kN
Operating weight                       7000kg
Bucket capacity                          0.28-0.32m³