GC78-8 excavator
Product features
1, Yanmar engine, inline four-stroke, convenient environmentally friendly, low fuel consumption, low noise and maintenance;
2, using load-sensing hydraulic control system, a single pump, easy operation, high efficiency, good performance composite action;
3, the use of advanced electronic monitoring multifunction large dot-matrix LCD screen. Electric throttle control system with throttle control, automatic idle speed, thermal protection, speed of acquisition and other functions, and automatic idle function. In any mode, take full account of the work of fuel economy, maximum efficiency in all types of job sites when possible job;
4, imported hydraulic parts, stable and reliable quality, high efficiency;
5, multi-functional GPS enables remote monitoring and two-way transfer of data, real-time understanding of the machine running;
6, strengthen working device, the new cab and seats, air conditioning, wide field of vision, flexible manipulation comfortable.
Parameters
Engine | Travel System | |||||||||||||||
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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 |
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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 | ||||||||||||||||
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 | |||||||||||
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 | 5850kg |