Tonnage (tons) 21
Machine operating weight (kg) 18100 – 22800
Bucket capacity (m³) 0.52 – 1.22
Boom length (mm) 5700
Arm length (mm) 2900
Performance
Slewing speed (rpm) 12.3
Slewing torque (Nm) 76.7
Travel speed (km/h) 3.5 / 5.8
Bucket digging force (kN) 123
Arm digging force (kN) 96
Maximum traction force (kN) 183
Power system
Engine model Volvo D5E
Rated power (kw/rpm) 123/2000
Maximum torque (N.m) 670 / 1 600
Displacement (L) 4.7
Number of cylinders (pieces) 4
Bore × stroke (mm) 108*130
Hydraulic system
Main pump type Two variable displacement axial piston pumps
Pilot pump type ( ) gear pump
Main pump maximum flow (l/min) 2 x 212
Pilot pump flow (L/min) 1 x 18
Pilot oil circuit (MPa) 3.9
Working hydraulic oil circuit (Mpa) 32.4 / 34.3
Travel hydraulic circuit (Mpa) 34.3
Swing hydraulic circuit (Mpa) 27.9
Main overflow setting pressure (Mpa) 32.4 / 36.3
Boom cylinder-number × cylinder diameter × stroke (mm) 2*125 x 1 235
Arm cylinder-number × cylinder diameter × stroke (mm) 1*135 x 1 540
Bucket cylinder-number × cylinder diameter × stroke (mm) 1*120 x 1 065
Oil capacity
Fuel tank (L) 375
Hydraulic oil tank (L) 160
Hydraulic system (L) 300
Engine oil replacement amount (L) 17
Coolant (L )15
Main dimensions
Total length for transport (mm) 9745
Total width for transport (mm) 2800
Total height for transport (mm) 3 080
Total height of cab (mm) 2930
Onboard width (mm) 2700
Track ground length (mm) 3370
Total length of crawler (mm) 4160
Track shoe width (mm) 600
Track gauge (mm) 2200
Minimum ground clearance (mm )460
Counterweight ground clearance (mm)1025
Number of supporting wheels (single side) (pcs)7
Number of chain rollers (single side) (pcs)2
Number of track shoes (single side) (pcs)46
Operating range
Maximum digging radius (mm)9930
Maximum digging radius of parking surface (mm)9380
Maximum digging depth (mm)6730
Maximum digging height (mm)9220
Maximum unloading height (mm)6430
Maximum vertical digging depth (mm)5620
If you need our products please write down any questions, we will reply as soon as possible.