The Hitachi Long Reach Excavator ZX350LC-7H SLF is engineered for heavy-duty extended reach applications where depth, distance, and stability are critical. Built on the proven ZX350LC-7H production platform, the Super Long Front configuration provides increased boom and arm length for large-scale drainage, levee construction, riverbank stabilization, and deep infrastructure projects.
Designed with a long carriage undercarriage for enhanced balance, the ZX350LC-7H SLF maintains stable lifting and smooth hydraulic control even when operating at maximum reach. Its refined hydraulic system delivers precise multi-function performance, allowing operators to trench, dredge, and place material accurately across wide excavation zones.
As part of the advanced ZAXIS-7 series, this long reach excavator integrates intelligent engine management and optimized hydraulic efficiency to support sustained productivity while managing fuel consumption. Reinforced structural components and durable construction ensure reliable performance in demanding flood control, waterway maintenance, and civil infrastructure environments.
The ZX350LC-7H SLF delivers extended reach capability with the production power and stability contractors expect from a heavy-class Hitachi long reach excavator.
ZX250LC-7H SLF Specifications
Specifications
Net Rated Power:
271 HP (202 kW)
Operating Weight:
84,900 lbs (38,500 kg)
Max. Digging Reach
71 ft 11 in (21.92 m)
Max. Digging Depth
57 ft 0 in (17.38 m)
Engine
Model
Isuzu 6HK1X
Type
4-cycle water-cooled, common rail direct injection
2 x 76 gal/min (288 L/min) 1 x 69 gal/min (260 L/min)
Pilot pump
1 gear pump
Maximum oil flow
9.7 gal/min (36.8 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
5,220 psi (26.9 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
Quantity
Bore
Rod diameter
Boom
2
5.7″ (145 mm)
3.9″ (100 mm)
Arm
1
6.7″ (170 mm)
4.5″ (115 mm)
Bucket
1
3.9″ (100 mm)
2.8″ (70 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
6.0 min-¹
Swing Torque
88,507 lbf (120.0 kNm)
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. Heat- treated connecting pins with dirt seals. Hydraulic (grease) track adjusters with shock-absorbing recoil springs.
Number of Rollers and Shoes on Each Side
Upper rollers
2
Lower rollers
9
Track shoes
48
Track guards
3
Travel Device
Each track driven by 2-speed axial piston motor. Parking brake is spring-set/hydraulic-released disc type. Automatic transmission system: High-Low.
Travel speeds
High : 0 to 3.1 mph (0 to 5.0 km/h) Low : 0 to 2.0 mph (0 to 3.2 km/h)
Maximum traction force
66,993 lbf (298 kN)
Gradeability
70 % (35 degree) continuous
SERVICE REFILL CAPACITIES
Fuel tank
166.3 gal (630.0 L)
Engine coolant
12.7 gal (48.0 L)
Engine oil
12.7 gal (48.0 L)
Swing device
4.1 gal (15.7 L)
Travel device (each side)
2.9 gal (11.0 L)
Hydraulic system
89.8 gal (340.0 L)
Hydraulic oil tank
52.3 gal (198.0 L)
DEF/AdBlue® tank
18.5 gal (70.0 L)
ENVIRONMENT
Engine Emissions
Sounds Level
Sound level in cab according to ISO 6396: 2008
LpA 71 dB(A)
External sound level according to ISO 6395: 2008 and EU Directive 2000/14/EC
