GC78-8 Hydraulic Crawler Excavator

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Supply Capability:: 60 unit/month

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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

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

Q: .an Italian excavator working in Egypt uncovered eleven well-preserved mummies in a large tomb on the west bank of the Nile River. By 1835, the four mummies that had not yet been sold to collectors in the eastern United States found their way in a traveling exhibit to Kirtland, Ohio....Believing the mummies were worth owning, Joseph engaged the assistance of a number of church members in Kirtland to purchase them on behalf of the Church.quot;-Quoted from Coke Newell's quot;The Latter Daysquot;------------------------------------------------------------After reading the part, I searched for the mummies that the LDS Church purchased. However, I couldn't find any information about what happened to them.Where did the mummies go?: They were sold, ended up in a museum that later burned down. They were lost in the fire.

Q: Excavator first originated in that country?: Excavators were originally manual, and have been invented for more than one hundred and thirty years. They have been driven by steam, electric power, and internal combustion engines. After 1940s, hydraulic technology was applied to excavators. In 1950s, a crawler hydraulic excavator was developed.

Q: Which excavator is China's first rank?: If that is the joint venture brand sales, and sales of Komatsu Doosan is the best of the two, for domestic brands, 31 sales of the highest first joint venture brands: Caterpillar America brand, old brand, independent production. (CAT) advantages: adequate strength, durability, strength, and not bad. Disadvantages: high price, high fuel consumption, short arm, small work range. Especially mine type models, large fuel consumption, after-sales service in general. 20T model: reference price: CAT320DGC 97-100W 320D 110-115W Komatsu: Japanese brand, excavator industry leader, the total cost-effective, independent production. (KOMATSU) advantages: better strength, strong and durable, low fuel consumption, hydraulic pressure is its strong point, the overall coordination is good, the speed is very fast, not easy to bad, good hedge, used car good shot. Disadvantages: high prices, accessories expensive. (Note: because of the domestic market share is very high, deputy plant parts, so it is relatively cheap) 20t models: PC200-8 97-100W PC200-8 hybrid reference price (earth preferred fuel consumption is 30% less than the average car) 110-118W Hitachi: Japanese brands, excavator sales are also very large, generally also can be assembled. (HITACH) has the advantages of mechanical matching, hydraulic system, flexible action, general value, durability, cost, fuel consumption, power, price 3-5 million cheaper than Komatsu.

Q: please help: Open-pit mining (as opposed to underground mining) has several advantages:- 1) Low cost of recovery - large trucks can enter the mine, get filled up with rock from a large excavator and drive away to the processing plant. 2) No need to leave stability pillars, necessary to hold up underground mine workings but which may contain valuable ore that is effectively lost to the mining company. 3) Ease of beneficiation - surface mines are usually composed of materials (oxides in the case of metalliferous mines) that are easier to handle and easier to treat in order to recover their marketable product as a result of being so close to surface. 4) Safer environment - so much less problem of rock falls, hanging wall collapse resulting in a lower injury rate than in underground mine.

Q: I have a crested gecko, he's only a few months old now but he loves to climb and jump. I had seen online someone who had several cresteds in a huge tall terrarium and he had made a climbing wall on the back wall of it for them with ledges and things like that. I just have mine in a 10gal tank because he's still so small. I have one of those paper egg cartons standing up that he loves to climb and hide in (I've seen other people use this too) and I have some fake plant things that he likes to climb on too, but I've been thinking about making him an actual climbing thing with ledges to jump to and from. Does anyone know what kind of materiel would be good and also be safe to use for something like this? I was looking at excavator clay burrowing substrate...it's for reptiles that burrow, but it says when you add water to it you can mold it to make hills and ledges, but I wasn't sure how well it would work for something like making a vertical wall. Anyway would love some ideas. Thanks!: you can purchase a all Natural wooden background for a 10 gallon or buy a bigger one and cut it down i customized my own cage with my females and have the natural wood on all sides, a waterfall and a fog machine with lots of live plants. Its the best thing if ever seen used for climbing, also put plenty of live looking think vines they love them its also great exercise for the jumping experiences

Q: Every answer I have got from you has been very logical and correct. So here is one I have been wondering. How do you explain the evidence of primitive man? Scientists have found skeletons of of them. And there has been cave paintings that date back a long time. They have also found tools, and things of that nature that date back to the primitive mans existence. What is your belief on that? I have no need to bash on you in any way, or question you in a derogatory way. Thanks.: What about those “ape-men” depicted in schoolbooks, encyclopedias and museums? “The flesh and hair on such reconstructions have to be filled in by resorting to the imagination. . . . Skin color; the color, form, and distribution of the hair; the form of the features; and the aspect of the face—of these characters we know absolutely nothing for any prehistoric men.”—The Biology of Race (New York, 1971), James C. King, pp. 135, 151. “The vast majority of artists’ conceptions are based more on imagination than on evidence. . . . Artists must create something between an ape and a human being; the older the specimen is said to be, the more apelike they make it.”—Science Digest, April 1981, p. 41. “Just as we are slowly learning that primitive men are not necessarily savages, so we must learn to realize that the early men of the Ice Age were neither brute beasts nor semi-apes nor cretins. Hence the ineffable stupidity of all attempts to reconstruct Neanderthal or even Peking man.”—Man, God and Magic (New York, 1961), Ivar Lissner, p. 304.

Q: What are the main parts of the excavator structure?: The common excavator structure includes power device, working device, slewing mechanism, control mechanism, transmission mechanism, walking mechanism and auxiliary facilities, etc..In appearance, the excavator consists of three parts: the working device, the upper rotating platform and the walking mechanism. According to its structure and use, can be classified as: track, tire, walking, full hydraulic, semi hydraulic, full rotation, non full rotation, universal, special type, articulated, telescopic arm and other types.A work device is a device that performs the task of digging directly. The utility model is hinged by three parts, such as an arm, a bucket rod, a bucket, etc..

Q: What about sunward excavator?: Sunward lost on domestic machines, small digging is fairly good in domestic sales, in the big dig on how.Cheapness。 Look, what price do you belong to?.At the end of the price to buy the country, yuchai. (cheap, no good)High price to buy 31 machines. (domestic sales first. Mainly after-sales service is good. The digging machine in the same tonnage configuration with Komatsu. Just like Hitachi. But the price is much lower than the bottom. Is the highest price of the machine) suggest to buy (a small earthquake in Japan nuclear leak is to buy 31 pump. The highest pump in 31 Chinese group)If you have money, you'll buy komatsu. Carter. No, I said. Is more than 90 years of digging machine brand)What stage do you think you belong to?. This place a lot of 31 excavator. Small to 55. to 460. after-sales really nothing to say.

Q: how about Metro Excavator Bucket: Sure thing it can take a big load...

Q: As a new cadet, I'm very interested in troubleshooting of electrical components such as this. Last time, I've encountered several problems on how to test the solelnoids in our Automatic Transmission for Excavator Crawler, if it is still functioning or not.: when you try to start your vehicle if you hear a clicking sound coming from the solenoid the solenoid is bad and will need to be replaced there is no way to test it Good Luck

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