JCM921D Hydraulic Crawler Excavator, 21 tons, 0.9 m3 bucket

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Product Description:

•It adopts originally imported Cummins B5.9 engine which features Tier 2 standards, energy saving, environmental care, and convenient service and maintenance;
•It adopts radial seal air filter with pre-filter which effectively prolongs engine life, with fuel filling pump and pressure transmitter as standard device for higher fuel economy.
•It adopts originally imported hydraulic parts, which features stable and reliable quality, and high efficiency;
•It adopts new type cab and seats, brand-new interior, and new air conditioning system with automatic adjustment function for comfortable operation;
•New generation electric control system: large color display capable of real time monitoring of machine operation condition, self-diagnosis and recording, electric throttle, and multiple work modes.
•Multiple kinds of buckets and optional parts like dozer blades, breakers, scarifiers, electromagnetic suction cups, quick couplers, etc. are available for digging, landfill, breaking, and grading operations.
•The multifunctional GPS can achieve remote control and data transfer so that the real time machine conditions can be known.

JCM921D HydraulicCrawler Excavator

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

167kN

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

115mm×80mm×1120mm

      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

0.9m3 (SAE)

Bucket width

1189mm

Arm Type

A

Max. digging depth

9281mm

B

Max. dumping height

6480mm

C

Max. digging height

6605mm

D

Max. vertical digging depth

5735mm

E

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

6404mm

F

Max. digging distance

9845mm

G

Max. digging radius at ground level

9671mm

H

Min. swing radius of work equipment

3500mm

Digging Force (ISO6015)        Unit: kN

Arm length

2925mm

Bucket digging force

115kN

Arm digging force

92.5kN

    Arm Type                                 2925mm

A

Overall length

9548mm

I

Tread

3360mm

B

Ground contact length  (Transportation)

4947mm

J

Track length

4160mm

C

Overall height(to top  of boom)

3073mm

K

Track gauge

2200mm

D

Overall width

2800mm

L

Track width

2800mm

E

Overall height(to top  of cab)

2965mm

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 5.7m, arm 2.925m, and bucket 0.9m3)

Shoe width

600mm

Overall width

2800mm

Ground pressure

45KPa

Operating weight

20500kg
















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Q:Card to bel 320d2gc hydraulic excavator how much money
The working device comprises a movable rod, a bucket rod and various changing equipment, such as a shovel, an anti shovel, a loading bucket, a grab bucket, etc., and the typical working cycle is as follows:(1) mining in hard Tucheng in general to the bucket rod bucket cylinder with action, adjust the cutting angle, with the excavation in soft soil slope mining; in turn, is dominated by bucket cylinder action; by the special requirements of the mining operation, the bucket cylinder and the bucket rod cylinder and boom cylinder three composite action. In order to ensure the specified trajectory bucket.(2) full bucket lifting and rotary excavation end, bucket cylinder launch, moving secondary cylinder rising, full bucket lifting; at the same time, slewing motor start, turntable turning to the direction of dumping.(3) unloading turntable to the unloading site, turntable brake bucket, cylinder adjustment, discharge radius, bucket cylinder recovery, bucket unloading. When there is a strict requirement on the unloading position and height, the arm Kr shall also be used.(4) after the end of the unloading, the turntable turns to the reverse direction, meanwhile, the movable arm cylinder cooperates with the bucket rod cylinder, so that the air bucket is lowered into the new digging bit.Single bucket hydraulic excavator is widely used in construction, transportation, water conservancy construction, open pit mining and modern military engineering. It is an indispensable main mechanical equipment in all kinds of earthwork construction.
Q:My neighbors are using my driveway what should I do?
Understand that your neighbor may not have told them that it was okay for your driveway to be used. I have had work done on my home in the past and you would not believe what the workers did without asking - everything from parking in my neighbor's driveway to using my neighbor's hose because it was more convenient to get to than mine. You should definitely have a talk with your neighbor. Heavy equipment like backhoes and excavators can damage your driveway. I would start the conversation by saying The men working on your house have been using my driveway to unload their heavy equipment. Would you please ask your contractor to speak with his men and tell them not to use my driveway. I am concerned about the risk of damage and don't want to take a chance that my driveway will be ruined. Thanks. I appreciate your help. That is exactly how my neighbor handled the situation and I was very appreciative that he let me know this was happening. I didn't know what the workers were doing because I was at work while the job was being done. I talked to my contractor and the problem was resolved. Good luck!
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John Deal excavator,The main brand sales in North America, Hitachi OEM for excavator.In addition, the company had a joint venture with Xu Wa to produce excavators, the company name She John Deal
Q:Import Sumitomo A5-210 excavator fault code 0087 what does that mean? Is the engine system abnormal?
Plug the road, the big pump may plug, plugging the electronic pump, and there is a large pump into the East and West, and all kinds of blocking.
Q:Black Ops Moon Big Bang Theory?
it doesn't matter when it breaches, as long as it does it once. Step 1) when the power has been turned on, you'll need to play a game of Samantha says on the four computers in the outside area with no gravity, near the quick revive. Step 2) Hack one of the four buttons in the lab, this requires you to have found the hacking device that lays around various tables.
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It became likely an same ones shown on television who were hauling off everythng they could get their hands on. fairly, in a city without eelectricity, no operating water, no nutrition why do you want to thieve 20 packing bins of Nike shoes? I said that on nattional television very last 3 hundred and sixty 5 days. i might want to were stealing nutrition. yet i'd not were stupid adequate no to evacuate at the same time as a category 4 became heading my way.
Q:Komatsu excavator GPS positioning system, how to go inside to see?
Komatsu with "Kang Chashi" global positioning system, can accurately locate the position of the machine (track), fuel consumption, work status, work quantity, the amount of fuel (to prevent without permission to put the oil, water temperature, oil temperature).
Q:Florensia, Sniper/Excavator damage?
No, there is no huge difference. Use Dual. Greetings The Freak
Q:How I gain experience in EARTHMOVING civil Construction?
Join the Operating Engineers Union. google it.
Q:Anyone have any reviews on the Zoomed excavator clay substrate? I would like to use this with a mixture w/sand?
if you have turtles you are not supposed to give them sand. they will mistakenly eat it which can mess up their digestive system, cause them pain, and possibly death

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