ZX120
Specifications
Engine
Type | 4-cycle water-cooled, common rail direct injection |
Aspiration | Turbocharged, intercooled |
No. of cylinders | 4 |
SAE J1349, net | 88 hp (65 kW) @ 2,150 rpm (min-1) |
Maximum torque | 253 lbf•ft (35 kgf•m) @ 1,600 rpm (min-1) |
Piston displacement | 264 in3 (4.329 L) |
Bore and stroke | 105 mm x 125 mm |
Batteries | 2 x 12 V, 55 AH |
Hydraulic System
Main pumps | 2 variable displacement axial piston pumps |
Maximum oil flow | 2 x 105 L/min |
Pilot pump | 1 gear pump |
Maximum oil flow | 33 L/min |
Travel | 2 variable displacement axial piston motors |
Swing | 1 axial piston motor |
UPPERSTRUCTURE
Revolving Frame
Welded sturdy box construction, using heavy-gauge steel plates for ruggedness. D-section frame for resistance to deformation.
Swing Mechanism
Axial piston motor with planetary reduction gear is bathed in oil. Swing circle is single-row, shear-type ball bearing with induction hardened internal gear. Internal gear and pinion gear are immersed in lubricant. Swing parking brake is spring-set/ hydraulic-released disc type.
Swing speed ………………………………………………….13.7 rpm (min-1)
Operator’s Cab
Independent roomy cab, 40” (1 005 mm) wide by 66” (1 675 mm) high, conforming to ISO Standards. Reinforced glass windows on 4 sides for visibility. Front windows (upper and lower) are openable. Adjustable, reclining seat with armrests; movable with or without control levers.
Undercarriage
Tracks
Tractor-type undercarriage. Lubricated track rollers, idlers, and sprockets with floating seals. Track shoes with triple grousers made of induction-hardened rolled alloy. Heat-treated connecting pins with dirt seals. Hydraulic (grease) track adjusters with shock-absorbing recoil springs.
Number of Rollers and Shoes on Each Side, standard N.A. model
Upper rollers ……………………………………………………………………..1
Lower rollers ……………………………………………………………………..7
Track shoes ……………………………………………………………………..44
Traction Device
Each track driven by 2-speed axial piston motor through planetary reduction gear for counter-rotation of the tracks. Sprockets are replaceable. Parking brake is spring-set/hydraulic-released disc type. Travel shockless relief valve built in travel motor absorbs shocks when stopping travel.
Automatic transmission system: High-Low.
Travel speeds High: ………………………………0-3.4 mph (5.5 km/h)
Low: ………………………………0-2.1 mph (3.4 km/h)
Maximum traction force …………………………22,900 lbf (10 400 kgf)
Gradeability …………………………………………..35°(70%) continuous