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NEO system
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wo variable axial piston pumps, a gear pump for pilot control, electrically controlled engine, Sumitomo NEO.
The Sumitomo NEO includes three work modes, automatic work mode, automation button, automatic power boost, speed aid system, power rotation system and emergency locking system.
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SH220-3 |
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SH300-3
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SH300LC-3
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SH350HD-3
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Basic |
Standard boom length
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6.45m
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6.45m(HDtype)
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Standard arm length
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3.25m
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3.25m(HDtype)
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Standard bucket (meeting ISO standard)
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1.40m3
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1.40m3(HDtype)
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Standard track width
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600mm
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600mm
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Standard operating weight
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33000kg
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33600kg
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35200kg
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Engine |
Model
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ISUZU
AA-6HK1×QB
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Type
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Water cooling, 4-stroke, 6-cylinder, turbocharged with electronically controlled direct injection
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Rated power output
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184KW(247HP)/2000min-1
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Max. torque
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922N·M1600min-1
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Piston displacement
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7790ml
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Bore and stroke |
115mm×125mm
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Start system
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24
V electric motor starting
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Alternator
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24V
50A
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Air filter
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Dual component
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Hydraulic system |
Main pump
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Two variable displacement axial piston pumps with adjustment system
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Maximum pressure
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34.3MPa(350kgf/cm2)
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(Automatic power boost)
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37.3MPa(380kgf/cm2)
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Travel motor
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Variable displacement axial piston motors
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Brake type
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Mechanical brake |
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Slew motor
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Fixed displacement axial piston motor
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Performance |
Travel speed
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5.5/3.2km/h
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Tractive effort
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278KN(28.4t)
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Gradeability |
70%(35°)
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Ground pressure
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67Kpa
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63Kpa
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71Kpa
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Slew speed
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9.6min-1
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Digging force |
Bucket
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229kN(23352kgf)
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(Automatic power boost) |
248kN(25289kgf)
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Arm
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164kN(16723kgf)
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(Automatic power boost)
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178kN(18151kgf)
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Hydraulic pump
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It is equipped with two variable axial piston pumps, providing power for the auxiliary parts, rotation and undercarriage.
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SH300-3 / SH300LC-3 / SH350HD-3 |
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Maximum oil flow :
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2×248 l/min
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Maximum flow of pilot pump :
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26 l/min
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Hydraulic cylinder
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Double-acting, straight cylinder top. There are hardening steel bushing duct on the cylinder duct and lever end.
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SH300-3 / SH300LC-3 / SH350HD-3 |
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Cylinder :
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Quantity
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Bore × lever diameter × stroke
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Boon :
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2
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145mm×100mm×1495mm
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Arm :
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1
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170mm×120mm×1748mm
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Bucket ：
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1
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150mm×105mm×1210mm
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Rotation
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It adopts the planetary retarder of axial piston motor and the rotary bearing is roller bearing. Due to the rotary buffer valve and the dual pressure-reducing valve, slowdown and stopping can
be done smoothly. Mechanical rotary disc brake.
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SH300-3 / SH300LC-3 / SH350HD-3 |
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Speed :
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0-9.6rpm
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Tail radius :
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3450mm
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Torque :
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111KN·m
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Chassis
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The X-shaped body is welded inside,
robust and reliable. The chassis has lubricated rollers.
Track: sealed track chains
Top roller-after heat treatment, installed on the steel
bushing duct.
Track adjustment-the idle axle gets adjustment through the
grease cylinder on the side.
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No. of roller and tracks |
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SH300-3
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SH300LC-3
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SH350HD-3
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Top rollers :
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2
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2
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2
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Lower rollers :
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7
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8
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7
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Tracks :
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45
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48
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45
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The undercarriage
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Two-speed independent hydrostatic system. The compact axial motor improves performance. The output axis driven by hydraulic motor is connected with the planetary retarding unit and the track roller. All the hydraulic components are installed within the side frame.
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