GC78-8 Hydraulic Crawler Excavator

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Product Description:

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

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

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

GC78-8 Hydraulic Crawler Excavator

Max. digging depth

7222mm

Max. dumping height

5145mm

Max. digging height

3963mm

Max. vertical digging depth

3715mm

Max. Depth cut for 2440m(8')Level Bottom

3874mm

Max. digging distance

6324mm

Max. digging radius at ground level

6171.8mm

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

Overall length

6320mm

Tread

2130mm

Ground contact length (Transportation)

4330mm

Track length

2749.5mm

Overall height(to top of boom)

2829mm

Track gauge

1700mm

Overall width

2150mm

Track width

2150mm

Overall height(to top of cab)

2652mm

Shoe width

450mm

Counter weight ground clearance

812mm

Bonnet height

1775mm

Ground clearance

384mm

Revolving frame width

2203mm

Tail swing radius

1822mm

Distance from swivel center to tail

1750mm

GC78-8 Hydraulic Crawler Excavator

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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