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Quarry Specification Excavators - Hitachi Construction Machinery

Quarry Specification Excavators - Hitachi Construction Machinery

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SPECIFICATIONS<br />

ZAXIS 400R<br />

ENGINE<br />

Model ...........................<br />

Type .............................<br />

Aspiration .....................<br />

No. of cylinders ............<br />

Rated power<br />

ISO 9249, net ...........<br />

Maximum torque ..........<br />

Piston displacement ....<br />

Bore and stroke ...........<br />

Batteries ......................<br />

HYDRAULIC SYSTEM<br />

Main pumps .................<br />

Maximum oil flow ..<br />

Pilot pump....................<br />

Max. oil flow ..........<br />

Hydraulic Motors<br />

Travel ...........................<br />

Swing ...........................<br />

Relief Valve Settings<br />

Implement circuit .........<br />

Swing circuit ................<br />

Travel circuit .................<br />

Pilot circuit ...................<br />

Power boost ................<br />

Isuzu AH-6HK1X<br />

4-cycle water-cooled, direct injection<br />

Turbocharged, intercooled<br />

6<br />

H/P mode :<br />

202 kW (271 HP) at 1 900 min -1 (rpm)<br />

EEC 80/1269, net ..... H/P mode :<br />

202 kW (271 HP) at 1 900 min -1 (rpm)<br />

SAE J1349, net ........ H/P mode :<br />

202 kW (271 HP) at 1 900 min -1 (rpm)<br />

1 080 Nm (110 kgf m) at 1 500 min -1 (rpm)<br />

7.790 L<br />

115 mm x 125 mm<br />

2 x 12 V / 128 Ah<br />

Work mode selector<br />

Digging mode / Attachment mode<br />

2 variable displacement axial piston pumps<br />

2 x 288 L/min<br />

1 gear pump<br />

32 L/min<br />

2 variable displacement axial piston motors<br />

1 axial piston motor<br />

34.3 MPa (350 kgf/cm 2 )<br />

34.3 MPa (350 kgf/cm 2 )<br />

34.3 MPa (350 kgf/cm 2 )<br />

3.9 MPa (40 kgf/cm 2 )<br />

36.3 MPa (370 kgf/cm 2 )<br />

Hydraulic Cylinders<br />

High-strength piston rods and tubes. Cylinder cushion mechanisms<br />

provided in boom and arm cylinders to absorb shock at stroke ends.<br />

UPPER STRUCTURE<br />

Revolving Frame<br />

Welded sturdy box construction, using heavy-gauge steel plates for<br />

ruggedness. D-section frame for resistance to deformation.<br />

Swing Device<br />

Axial piston motor with planetary reduction gear is bathed in oil. Swing<br />

circle is single-row, shear-type ball bearing with induction-hardened<br />

internal gear. Internal gear and pinion gear are immersed in lubricant.<br />

Swing parking brake is spring-set/hydraulic-released disc type.<br />

Swing speed ............... 10.7 min -1 (rpm)<br />

Operator’s Cab<br />

Independent spacious cab, 1 005 mm wide by 1 795 mm high,<br />

conforming to ISO* Standards. (OPG top guard fitted Level II (ISO<br />

10262) compliant cab) Reinforced glass windows on 4 sides for visibility.<br />

Reclining seat with armrests; adjustable with or without control levers.<br />

* International Standardization Organization<br />

UNDERCARRIAGE<br />

Tracks<br />

Tractor-type undercarriage. Welded track frame using selected materials.<br />

Side frame welded to track frame. Lubricated track rollers, idlers, and<br />

sprockets with floating seals.<br />

Track shoes with triple grousers made of induction-hardened rolled alloy.<br />

Heat-treated connecting pins with dirt seals. Hydraulic (grease) track<br />

adjusters with shock-absorbing recoil springs.<br />

Numbers of Rollers and Shoes on Each Side<br />

Upper rollers ................<br />

Lower rollers ................<br />

Track shoes .................<br />

Full track guard ............<br />

2<br />

8<br />

46<br />

1<br />

Travel Device<br />

Each track driven by 2-speed axial piston motor through planetary<br />

reduction gear for counterrotation of the tracks. Sprockets are<br />

replaceable.<br />

Parking brake is spring-set/hydraulic-released disc type. Travel<br />

shockless relief valve built in travel motor absorbs shocks when<br />

stopping travel.<br />

Automatic transmission system: High-Low.<br />

WEIGHTS AND GROUND PRESSURE<br />

Equipped with 6.4 m R-boom, 3.2 m R-arm, and 1.5 m 3 R-bucket<br />

(SAE, PCSA heaped) .<br />

Shoe type Shoe width Operating weight Ground pressure<br />

Triple<br />

grouser<br />

Capacity<br />

SAE, PCSA heaped<br />

600 mm 38 700 kg 78 kPa (0.79 kgf/cm 2 )<br />

BACKHOE ATTACHMENTS<br />

Boom and arms are of all-welded, box-section design. A number of<br />

boom and arms are available. Bucket is of all-welded, high-strength<br />

steel structure. The ZX400R-3 is a heavy duty type and euipped with a<br />

reinforced R-boom and R-arm.<br />

Backhoe Buckets<br />

CECE<br />

heaped<br />

Without<br />

side shrouds<br />

Width<br />

With<br />

side shrouds<br />

No. of<br />

teeth<br />

Weight<br />

* 1.5 m 3 1.3 m 3 1 440 mm 1 470 mm 5 1 720 kg<br />

*R-bucket<br />

SERVICE REFILL CAPACITIES<br />

Fuel tank ............................................................................... 630.0 liters<br />

Engine coolant ...................................................................... 32.0 liters<br />

Engine oil .............................................................................. 41.0 liters<br />

Swing device (each side) ....................................................... 17.0 liters<br />

Travel device (each side) ....................................................... 9.2 liters<br />

Hydraulic system ................................................................... 374.0 liters<br />

Hydraulic oil tank................................................................... 298.0 liters<br />

Recommendation<br />

ZX400R-3<br />

6.4 m R-boom<br />

3.2 m<br />

R-arm<br />

Dimensions<br />

Quantity Bore Rod diameter<br />

Boom 2 145 mm 100 mm<br />

Arm 1 170 mm 115 mm<br />

Bucket 1 140 mm 95 mm<br />

Travel speeds ...............<br />

Maximum traction force ....<br />

Gradeability ....................<br />

High : 0 to 5.0 km/h<br />

Low : 0 to 2.9 km/h<br />

322 kN (32 800 kgf)<br />

70 % (35 degree) continuous<br />

Hydraulic Filters<br />

Hydraulic circuits use high-quality hydraulic filters. A suction filter is<br />

incorporated in the suction line, and full-flow filters in the return line and<br />

swing / travel motor drain lines.<br />

CONTROLS<br />

Pilot controls. <strong>Hitachi</strong>’s original shockless valve.<br />

Implement levers ..........<br />

Travel levers with<br />

pedals ..........................<br />

2<br />

2

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