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GC78-8 Hydraulic Crawler Excavator, equipped with YANMAR 4TNV94L Engine, with Boom 3.71m, Arm 1.65m, Bucket 0.28m3, and Blade 2150mm×342.3mm.
GC78-8 Hydraulic Crawler Excavator
Technical Specifications
Engine | Travel System | |||||||||||||||
Model | YANMAR 4TNV94L | Travel motors | JEIL, Korea; Variable axial piston motor | |||||||||||||
Type | Four-cylinder in line, natural intake | Support roller quantities | 2×5 | |||||||||||||
Carrier roller quantities | 2×1 | |||||||||||||||
No. of cylinder | 4 | Travel shoes | 2×38 | |||||||||||||
Bore and stroke | 98mm×110mm | Travel speed | 2.8/4.8km/h | |||||||||||||
Displacement | 3.319L | Drawbar pulling force | 57kN | |||||||||||||
Power output | 43.4kW/2200rpm | Grade ability | 70% (30°) | |||||||||||||
Ground clearance | 384mm | |||||||||||||||
Hydraulic System | Cab & Control | |||||||||||||||
Pump | NACHI, Japan | Cab | All-weather, sound-suppressed Cab and equipped with a heavy, insulated Floor Mat; Front Window can be opened and slid; 6-direction adjustable Seat; LED display, Automatic monitoring, display and warning; cool & hot Air Conditioner | |||||||||||||
Type | variable double–piston pump | |||||||||||||||
Max. discharge flow | 169.5L/min | |||||||||||||||
Max. discharge pressure | ||||||||||||||||
Boom, arm and bucket | 28MPa | Control | Two hand levers and two foot pedals for travel Two hand levers for excavating and swing; Electric rotary-type engine throttle | |||||||||||||
Travel circuit | 28MPa | |||||||||||||||
Swing circuit | 23.5MPa | |||||||||||||||
Control circuit | 3.5MPa | Boom, Arm & Bucket | ||||||||||||||
Pilot control pump | Gear type | Boom cylinder | 115mm×65mm×840mm | |||||||||||||
Main control valve | Negative flow control | Arm cylinder | 100mm×60mm×855mm | |||||||||||||
Oil cooler | Air cooled type | Bucket cylinder | 90mm×55mm×710mm | |||||||||||||
Swing System | Refilling Capacities&lubrications | |||||||||||||||
Swing motor | JEIL, Korea; | Fuel tank | 130L | |||||||||||||
Swing motor type | Axial-piston motor | Cooling system | 8L | |||||||||||||
Brake | Hydraulic oil released | Engine oil | 12L | |||||||||||||
Parking brake | Hydraulic disc brake | Hydraulic oil tank | 95L Tank oil level | |||||||||||||
Swing speed | 11.3r/min | 114L Hydraulic system | ||||||||||||||
Bucket | ||||||||||||||||
Type | Backhoe bucket | |||||||||||||||
Bucket capacity | 0.28m3 (SAE) | |||||||||||||||
Bucket width | 750mm | |||||||||||||||
Arm Type |
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A | Max. digging depth | 7222mm | ||||||||||||||
B | Max. dumping height | 5145mm | ||||||||||||||
C | Max. digging height | 3963mm | ||||||||||||||
D | Max. vertical digging depth | 3715mm | ||||||||||||||
E | Max. Depth cut for 2440m(8')Level Bottom | 3874mm | ||||||||||||||
F | Max. digging distance | 6324mm | ||||||||||||||
G | Max. digging radius at ground level | 6171.8mm | ||||||||||||||
H | Min. swing radius of work equipment | 1818.5mm | ||||||||||||||
Digging Force (ISO6015) Unit: kN | ||||||||||||||||
Arm length | 1650mm | |||||||||||||||
Bucket digging force | 56kN | |||||||||||||||
Arm digging force | 41.5kN | |||||||||||||||
Arm Type 1650mm | ||||||||||||||||
A | Overall length | 6320mm | I | Tread | 2130mm | |||||||||||
B | Ground contact length (Transportation) | 4330mm | J | Track length | 2749.5mm | |||||||||||
C | Overall height(to top of boom) | 2829mm | K | Track gauge | 1700mm | |||||||||||
D | Overall width | 2150mm | L | Track width | 2150mm | |||||||||||
E | Overall height(to top of cab) | 2652mm | M | Shoe width | 450mm | |||||||||||
F | Counter weight ground clearance | 812mm | O | Bonnet height | 1775mm | |||||||||||
G | Ground clearance | 384mm | P | Revolving frame width | 2203mm | |||||||||||
H | Tail swing radius | 1822mm | Q | Distance from swivel center to tail | 1750mm | |||||||||||
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Operating Weight and Ground Pressure | ||||||||||||||||
Operating weight includes basic machine (with boom 3.71m, arm 1.65m bucket 0.28m3, and blade 2150mm×342.3mm) | ||||||||||||||||
Shoe width | 450mm | |||||||||||||||
Overall width | 2150mm | |||||||||||||||
Ground pressure | 32KPa | |||||||||||||||
Operating weight | 7000kg |
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