The Hitachi ZX70-5A excavator has an environmentally friendly engine equipped with EGR and meets the national 3-times emission standard. It delivers excellent operating performance when combined with efficient hydraulic technology.

Hitachi ZX70-3

Power Traditional Power
Bucket Backhoe
Tonnage (ton) 7
Operating weight of the whole machine(kg) 6700
Bucket capacity(m³) 0.33-0.38
Length of moving arm(mm) 3720
Bucket rod length(mm) 1620
Rotation speed(rpm) 10.7
Rotation torque(Nm) 12.9
Traveling speed(km/h) 3.4-5.0
Climbing capacity (%) 70
Grounding specific pressure(Kpa) 31
Bucket digging force(kN) 55
Bucket rod digging force(kN) 38
Maximum traction force (kN) 47.8
Power System
Engine Model 4TNV98
Maximum traction force (kN) 42.4/2100
Max. torque(N.m) 236/1350
Displacement(L) 3.318
Number of cylinders(pcs) 4
Cylinder diameter×stroke(mm) 98×110
Cooling method Water cooling
Work form Stroke – Water-cooled – Direct injection
Hydraulic system
Main pump type 3 variable axial piston pumps
Traveling hydraulic motor type 2 variable axial piston motors
Pilot pump type 1 gear pump
Slewing hydraulic motor type 1 axial piston motor
Maximum flow rate of main pump(l/min) 2×63 / 1×52.5
Pilot pump flow rate (L/min) 21
Pilot oil circuit (MPa) 3.9
Working hydraulic oil circuit(Mpa) 26
Traveling hydraulic circuit (Mpa) 31.4
Slewing hydraulic circuit (Mpa ) 22.6
Movable arm cylinder – number × bore × stroke (mm) 1*115*65
Bucket rod cylinder-Number of cylinders×diameter×stroke(mm) 1*95*60
Bucket cylinder – number × bore × stroke (mm) 1*85*55
Oil Capacity
Fuel tank (L) 135
Hydraulic oil tank(L) 60
Hydraulic system(L) 100
Engine oil change volume (L) 12.3

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