ZX300LC-7H
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Hitachi excavator ZX300LC-7H delivers high production digging power, long carriage stability, and ZAXIS-7 efficiency.
Hitachi Excavator ZX300LC-7H
The Hitachi Excavator ZX300LC-7H is engineered for high-production excavation and demanding large-scale construction projects. Designed on a long carriage platform for enhanced stability and lifting performance, the ZX300LC-7H delivers powerful breakout force, smooth hydraulic response, and consistent multi-function control across heavy-duty applications.
As part of the advanced ZAXIS-7 series, this excavator integrates intelligent engine management, refined hydraulic tuning, and improved fuel efficiency to maximize productivity while helping control operating costs. The optimized boom and arm configuration supports efficient trenching, mass excavation, loading, and material handling in infrastructure and site development environments.
Built with durability in mind, the ZX300LC-7H is designed to perform reliably under sustained workloads, providing contractors with the strength, precision, and long-term value expected from Hitachi Construction Equipment.
Product Highlights
Long Carriage Platform
Extended undercarriage design enhances stability and lifting capability for heavy excavation and loading tasks.
High-Production Digging Force
Strong breakout power and refined hydraulics support faster cycle times and increased material movement.
ZAXIS-7 Next Generation Systems
Advanced machine technology improves fuel efficiency, uptime, and overall performance management.
Intelligent Engine Control
Optimized power delivery balances high output performance with controlled operating costs.
Advanced Operator Environment
Modern cab layout with improved visibility, ergonomic controls, and intuitive interface enhances productivity.
Simplified Maintenance Access
Grouped service points and durable components help reduce downtime and streamline routine inspections.
ZX17U-5n Specifications
| Specifications | |
|---|---|
| Net Rated Power | 177 HP (132 kW) |
| Operating Weight | 60,186 lb (27,300 kg) |
| Max. Digging Reach at Ground Level | 35 ft 3 in (10.75 m) |
| Max. Digging Depth | 25 ft 0 in (7.61 m) |
| Working Ranges | |
|---|---|
| Arm Length | 11′ 10″ (3.61) |
Engine
| Model | Isuzu 6HK1X |
| Type | 4-cycle water-cooled, common rail direct injection |
| Aspiration | Variable geometry turbocharged, intercooled, cooled EGR |
| Aftertreatment | DOC + SCR system |
| No. of cylinders | 6 |
| Rated power | |
| ISO 14396: Gross | 264 HP (197 kW) at 1,900 min |
| ISO 9249: Net | 249 HP (186 kW) at 1,900 min |
| Maximum Torque | 774 lbf (1 050 Nm) at 1 500 min |
| Piston displacement | 475.38 cu.in. (7.79 L) |
| Bore and Stroke | 4.5″ x 4.9″ (115 mm x 125 mm) |
| Batteries | 2 x 12 V / 135 Ah |
Hydraulic System
| Hydraulic Pumps | |
|---|---|
| Main pumps | 3 variable displacement axial piston pumps |
| Maximum Oil flow | 2 x 62 gal/min (236 L/min) 1 x 55 gal/min (210 L/min) |
| Pilot Pump | 1 gear pump |
| Maximum Oil Flow | 9.2 gal/min (34.7 L/min) |
| Hydraulic Motors | |
|---|---|
| Travel | 2 variable displacement axial piston motors |
| Swing | 1 axial piston motor |
| Relief Valve Settings | |
|---|---|
| Implement circuit | 4,974.8 psi (34.3 MPa) |
| Swing circuit | 4,699.2 psi (32.4 MPa) |
| Travel circuit | 4,974.8 psi (34.3 MPa) |
| Pilot circuit | 565.6 psi (3.9 MPa) |
| Power boost | 5,511.4 psi (38.0 MPa) |
Hydraulic Cylinders | ZX75US-7
| Quantity | Bore | Rod Diameter | |
|---|---|---|---|
| Boom | 2 | 5.3″ (135 mm | 3.7″ (95 mm) |
| Arm | 1 | 5.9″ (150 mm) | 4.1″ (105 mm) |
| Bucket | 1 | 5.3″ (135 mm) | 3.5″ (90 mm) |
Upperstructure
| Revolving Frame | 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. | Swing parking brake is spring-set/hydraulic released disc type |
| Swing speed | 10.3 min |
| Swing torque | 66,749 lbf (90.5 kNm) |
Undercarriage
| Tracks |
|---|
| 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 | 8 |
| Track Shoes | 48 |
| Track Guards | 3 |
| Travel Device | |
|---|---|
| Each track driven by a 2-speed axial piston motor | Parking brake is spring-set/hydraulic-released disc type. Automatic transmission system: High-Low |
| Travel Speeds | High : 0 to 3.2 mph (0 to 5.2 km/h) Low : 0 to 1.9 mph (0 to 3.1 km/h) |
| Maximum traction force | 55 303 lbf (246 kN) |
| Gradeability | 70% (35 degrees) continuous |
Service Refill Capacities
| Fuel tank | 134.6 gal (510.0 L) |
| Engine coolant | 12.7 gal (48.0 L) |
| Engine oil | 12.7 gal (48.0 L) |
| Swing device | 3.2 gal (12.0 L) |
| Travel device (each side) | 2.5 gal (9.4 L) |
| Hydraulic system | 77.6 gal (294.0 L) |
| Hydraulic oil tank | 43.0 gal (163.0 L) |
| DEF/AdBlue® tank | 18.5 gal (70.0 L) |
Weights and Ground Pressure
Operating Weight and Ground Pressure
| Shoe Type | Shoe width Unit: in (mm) | Arm Length, ft-in(m) | ZX160LC-7H Monoblock lb (kg) | psi (kPa) |
|---|---|---|---|---|
| Triple gouser | 32″ (800) | 10’2″ (3.11) 12’4″ (3.76) | 68,784 (31 200) 69,005 (31 300) | 6.35 (43.8) 6.37 (43.9) |
Including 1.05 yd³ (0.80 m³) (ISO 7451: 2007 heaped) bucket weight (1,455 Ib (660 kg)) and counterweight (10,700 Ib (4 850 kg))
Bucket and ARM Digging Force
| ZX300LC-7H | ZX300LC-7H | |
| Arm length | 10′ 2″ (3.11 m) | 12′ 4″ (3.76 m) |
| Bucket digging force* ISO 6015: 2006 | 45,411 (202) | 45,411 (202) |
| Arm crowd force* ISO 6015: 2006 | 32,372 (144) | 32,372 (144) |
Additional information
| Condition | New |
|---|


