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Hitachi Excavators ZAXIS330G

Hitachi Excavators ZAXIS330G
Specifications :
ENGINE
Model Isuzu AA-6HK1X
Type 4-cycle water-cooled, direct injection
Aspiration Turbocharged, intercooled
No. of cylinders 6
Rated power ISO 9249, net 184 kW (246 HP) at 2 000 min-1 (rpm)
Rated power SAE J1349, net 180 kW (241 HP) at 2 000 min-1 (rpm)
Maximum torque 873 Nm (89 kgf m) at 1 700 min-1 (rpm)
Piston displacement 7.790 L
Bore and stroke 115 mm x 125 mm
Batteries 2 x 12 V / 128 Ah
HYDRAULIC SYSTEM
Work mode selector Digging mode / Attachment mode
Engine speed sensing system  
Main pumps 2 variable displacement axial piston pumps
Main pumps Maximum oil flow 2 x 276 L/min
Pilot pump 1 gear pump
Pilot pump Maximum oil flow 32 L/min
Hydraulic Motors
Travel 2 variable displacement axial piston motors
Swing 1 axial piston motor
Relief Valve Settings
Implement circuit 31.4 MPa (320 kgf/cm2)
Swing circuit 31.4 MPa (320 kgf/cm2)
Travel circuit 34.3 MPa (350 kgf/cm2)
Pilot circuit 3.9 MPa (40 kgf/cm2)
Power boost 34.3 MPa (350 kgf/cm2)
Hydraulic Cylinders
High-strength piston rods and tubes. Cylinder cushion mechanisms provided in boom and arm cylinders to absorb shock at stroke ends.
Dimensions
Hydraulic Filters
Hydraulic circuits use high-quality hydraulic filters. A suction filter is incorporated in the suction line, and full-flow filters in the return line and swing / travel motor drain lines.
CONTROLS
Pilot controls. Hitachi's original shockless valve.
Implement levers 2
Travel levers with pedals 2
Attachment pedals (Demolition version ZX350K-3G) 1
UPPERSTRUCTURE
Revolving Frame
Welded sturdy box construction, using heavy-gauge steel plates for ruggedness. D-section frame for resistance to deformation.
Swing Device
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 11.8 min-1 (rpm)
Swing torque 103 kNm (10 500 kgf m)
Operator's Cab
Independent spacious cab, 1 005 mm wide by 1 675 mm high, conforming to ISO* Standards. Reinforced glass windows on 4 sides for visibility. Front windows (upper and lower) can be opened. Reclining seat with armrests; adjustable with or without control levers.
* International Standardization Organization
UNDERCARRIAGE
Tracks
Tractor-type undercarriage. Welded track frame using selected materials. Side frame welded to track frame. Lubricated track rollers, idlers, and sprockets with floating seals. Track shoes with triple grousers made of induction-hardened rolled alloy. Flat and triangular shoes are also available. Heat-treated connecting pins with dirt seals. Hydraulic (grease) track adjusters with shock-absorbing recoil springs.
Numbers of Rollers and Shoes on Each Side
Upper rollers 2
Lower rollers 7 : ZX330-3G/ZX350H-3G/ZX350K-3G
8 : ZX330LC-3G/ZX350LCH-3G/ZX350LCK-3G
Track shoes 45 : ZX330-3G/ZX350H-3G/ZX350K-3G
48 : ZX330LC-3G/ZX350LCH-3G/ZX350LCK-3G
Track guard 3 : Z X330-3G/ZX330LC-3G/Z X350K-3G/ZX350LCK-3G
Full track guard : ZX350H-3G/ZX350LCH-3G
Travel Device
Each track driven by 2-speed axial piston motor through planetary reduction gear for counterrotation 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 to 5.0 km/h
Low : 0 to 3.2 km/h
Maximum traction force 298 kN (30 400 kgf)
Gradeability 70 % (35 degree) continuous
WEIGHTS AND GROUND PRESSURE
ZX330-3G:
Equipped with 6.40 m boom, 3.20 m arm and 1.40 m3 bucket (SAE, PCSA heaped).
ZX330LC-3G:
Equipped with 6.40 m boom, 3.20 m arm and 1.40 m3 bucket (SAE, PCSA heaped).
ZX350H-3G:
Equipped with 6.40 m H-boom, 3.20 m H-arm and 1.38 m3 H-rock bucket (SAE, PCSA heaped).
ZX350LCH-3G:
Equipped with 6.40 m H-boom, 3.20 m H-arm and 1.38 m3 H-rock bucket (SAE, PCSA heaped).
ZX350K-3G:
Equipped with 6.40 m K-boom, 3.20 m K-arm and 1.40 m3 K-reinforced bucket (SAE, PCSA heaped).
ZX350LCK-3G:
Equipped with 6.40 m K-boom, 3.20 m K-arm and 1.40 m3 K-reinforced bucket (SAE, PCSA heaped).
Weight of the basic machines [including 6 800 kg, 7 550 kg H-type, 8 200 kg K-type counterweight and triple grouser shoes, excluding frontend attachment, fuel, hydraulic oil, engine oil and coolant etc.] are:
ZX330-3G 24 200 kg with 600 mm shoes
ZX330LC-3G 24 700 kg with 600 mm shoes
ZX350H-3G 25 700 kg with 600 mm reinforced shoes
ZX350LCH-3G 26 300 kg with 600 mm reinforced shoes
ZX350K-3G 26 300 kg with 600 mm reinforced shoes
ZX350LCK-3G 26 900 kg with 600 mm reinforced shoes
SERVICE REFILL CAPACITIES
Fuel tank 560.0 L
Engine coolant 35.0 L
Engine oil 36.0 L
Swing device 16.3 L
Travel device (each side) 9.2 L
Hydraulic system 320.0 L
Hydraulic oil tank 154.0 L
BACKHOE ATTACHMENTS
Boom and arms are of welded, box-section design. 6.40 m boom, and 2.66 m, 3.20 m, and 4.00 m arms are available. Bucket is of welded steel structure. Side clearance adjust mechanism provided on the bucket joint bracket.
Buckets

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