21 tons Long Boom Crawler excavator, long digging distance

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Product Description:

JCM921D Hydraulic Crawler Excavator’sOperating Weightwith long boomis 20.5t, equipped with CUMMINS B5.9-CEngine, with Boom 7.64m,Arm 5m, Bucket 0.45m3.


JCM921D HydraulicCrawler Excavator (withLong Boom)

TechnicalSpecifications

          Engine

    Travel System

Model

CUMMINS B5.9-C

Travel motors

JEIL, KOREA

Variable axial piston motor

Type

Water cooling, turbocharged,  empty enter-cooling

Support roller quantities

2×7

Carrier roller quantities

2×2

No. of cylinder

6

Travel shoes

2×46

Bore and stroke

102mm×120mm

Travel speed

3.3/5.4km/h

Displacement

5.9L

Drawbar pulling force

201kN

Power output

112kW/1950rpm

Grade ability

70% (35°)

Ground clearance

470mm

      Hydraulic System

      Cab Control

Pump

KAWASAKI, 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

2×208L/min

Max. discharge pressure

Boom, arm and bucket

31.9MPa

Control

Two hand levers and two foot pedals for travel Two hand levers for  excavating and swing;

Electric rotary-type engine throttle

Travel circuit

31.9MPa

Swing circuit

25.5MPa

Control circuit

3.9MPa

Boom, Arm Bucket

Pilot control pump

Gear type

Boom cylinder

120mm×85mm×1285mm

Main control valve

Negative flow control

Arm cylinder

135mm×95mm×1490mm

Oil cooler

Air cooled type

Bucket cylinder

95mm×65mm×885mm

      Swing System

Refilling  Capacitieslubrications

Swing motor

KAWASAKI, JAPAN

Fuel tank

360L

Swing motor type

Axial-piston motor

Cooling system

25L

Brake

Hydraulic oil released

Engine oil

20L

Parking brake

Hydraulic disc brake

Hydraulic oil tank

250L  Tank oil level

Swing speed

11.5r/min

420L  Hydraulic system

                           Bucket

Type

Backhoe bucket

    Bucket capacity

0.45m3 (SAE)

Bucket width

921mm

Arm Type

A

Max. digging height

11560mm

B

Max. dumping height

9393mm

C

Max. digging depth

9464mm

D

Max. vertical digging depth

7876mm

E

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

9315mm

F

Max. digging distance

13203mm

G

Max. digging radius at ground  level

13075mm

H

Min. swing radius of work  equipment

4400mm

Digging Force (ISO6015)        Unit: kN

Arm length

5000mm

Bucket digging force

86kN

Arm digging force

60kN

    Arm Type                                 5000mm

A

Overall length

11480mm

I

Tread

3360mm

B

Ground contact length  (Transportation)

4655mm

J

Track length

4160mm

C

Overall height(to top  of boom)

3053mm

K

Track gauge

2200mm

D

Overall width

2800mm

L

Track width

2800mm

E

Overall height(to top  of cab)

2977mm

M

Shoe width

600mm

F

Counter weight ground  clearance

1120mm

O

Bonnet height

2375mm

G

Ground clearance

470mm

P

Revolving frame width

2726mm

H

Tail swing radius

2905mm

Q

Distance from swivel  center to tail

2853mm

             Operating  Weight and Ground Pressure

Operating weight includes basic machine (with boom 7.64m, arm 5m, and bucket 0.45m3)

Shoe width

600mm

Overall width

2800mm

Ground pressure

45KPa

Operating weight

20500kg


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Q:Should Obama spend another trillion, but this time on spoon ready jobs instead of shovel ready jobs?
A million union men with tea spoons can replace 4 excavators.The liberal way of thinking.
Q:What would be a well paying carreer for an outdoorsman?
Commercial fishing is not a regular paycheck, but it can pay very well from time to time.
Q:How can I compute the VOLUME of a bucket of Heavy Equipment like Loaders and Excavators?
Excavator Bucket Volume
Q:uromastyx experts please?
i use it for mine, just make sure it stays sorta moist
Q:How do we find out the volume of excavator bucket?
You need the internal measurements then, length x width x depth = volume
Q:What are the differences between a hydraulic excavator and a backhoe?
According to the different work methods used excavator backhoe excavator item. Hydraulic excavator is a very abstract concept, it can be divided into positive shovel, backhoe, dragline and so on.
Q:I want to know where to find information on starting a construction equipment rental business.?
Go to the link below and in the search, type in 'equipment rental'. They have model plans that you can use for your business. They will either be free or of reasonable cost.
Q:is the Barska Excavator a good scope?
Let's look at this a different way. Barska Excavator . What does one do with an excavator? You dig holes in the ground with an excavator... right? This is hilarious... I think the company is trying to tell you something. Excavator.... dig a hole and bury this turkey.... or it's most useful attribute is that it can be used as a shovel. Would you buy a chair called the LaZBoy® hemorrhoid?
Q:If a paleontologist happens to find a dinosaur skeleton?
If you are concerned about making money - become a stock broker or a lawyer. If you are concerned about money you won't be happy as a paleontologist. You need to love the discovery of the history of life on Earth. Money should be secondary. Most paleontologist don't make a dime from the fossils they discover. The fossils are kept in the collections of universities or museums.
Q:Issues with my arena?
It is important to drag sand arenas, but it is also important to compact them. My barn has an outdoor with sand and they drag it, then roll over it with a large metal thing (I have no idea what its called) I am going to assume that there is some sort of covering below the sand to keep from a horse sinking in (like rubber mats). I would say if the horse is sinking in the footing there is too much. *Barrel racing, cutting, roping - Deeper, thicker footing is generally preferred to reduce the stress on horses' legs. Some experts recommend as much as four to six inches of topping. Often, a soil/sand mix is used (for example, 75/25) because it can be watered and packed for firmness or fluffed up for a looser footing when needed. *Reining - Like other Western sports, reining requires a stable footing, but usually not as much depth-roughly 2½ to 3 inches. *Flatwork - Recommendations are typically for two inches of footing. Dressage in particular will suffer if footing is much deeper. Crumb rubber or wood products are sometimes considered beneficial additives for flatwork because they make the surface springier. *Jumping - Footing that's too deep will absorb energy and propulsion, making takeoff difficult. The optimum footing will offer good resistance for pushing off without being so hard that there's too much concussion on landing. The depth may be similar to that used for flatwork, but the surface for jumping is usually firmer.

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