SIH:S hydraulic system Excavator SH350HD-5/SH350LHD-5

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Description of excavator:


The two main sections of an excavator are the undercarriage and the house. The undercarriage includes the blade (if fitted), tracks, track frame, and final drives, which have a hydraulic motor and gearing providing the drive to the individual tracks, and the house includes the operator cab, counterweight, engine, fuel and hydraulic oil tanks. The house attaches to the undercarriage by way of a center pin. High pressure oil is supplied to the tracks' hydraulic motors through a hydraulic swivel at the axis of the pin, allowing the machine to slew 360° unhindered.


The main boom attaches to the house, and can be one of several different configurations:

Most are mono booms: these have no movement apart from straight up and down.

Some others have a knuckle boom which can also move left and right in line with the machine.

Another option is a hinge at the base of the boom allowing it to hydraulically pivot up to 180° independent to the house; however, this is generally available only to compact excavators.

There are also triple-articulated booms (TAB).


Attached to the end of the boom is the stick (or dipper arm). The stick provides the digging force needed to pull the bucket through the ground. The stick length is optional depending whether reach (longer stick) or break-out power (shorter stick) is required.


Specifications of excavator:


Working Range

Arm length2.63 m3.25 m
Boom length6.45 m
A ( Max.digging radius )10 670 mm11 170 mm
B ( Max.digging depth )6 730 mm7 340 mm
C ( Max.digging height )10 320 mm10 370 mm
D ( Max.dumping height )7 140 mm7 230 mm
E ( Max.vertical wall cut depth )5 970 mm6 350 mm
F ( Min.front swing radius )4 630 mm4 500 mm
G ( Rear end swing radius )3 450 mm


Arm length2.63 m3.25 m
A Overall length11 130 mm11 050 mm
B Length from center of machine (to arm top)7 710 mm7 630 mm
C Upper structure rear end radius3 450 mm3 450 mm
D Center to center of wheels3 720 mm3 720 mm
E Overall track length4 650 mm4 650 mm
F Overall height3 500 mm3 260 mm
G Clearance height under upper structure1 210 mm1 210 mm
H Shoe lug height36 mm36 mm
I Cab height3 130 mm3 130 mm
J Upper structure overall width3 120 mm3 120 mm
K Width from center of machine (left side)1 560 mm1 560 mm
L Width from center of machine (right side)1 560 mm1 560 mm
M Track gauge2 600 mm2 600 mm
N Overall width3 200 mm3 200 mm
O Std.Shoe width600 mm600 mm
P Minimum ground clearance480 mm480 mm
Arm length2.63 m3.25 m
A Overall length11 130 mm11 050 mm
B Length from center of machine (to arm top)7 710 mm7 630 mm
C Upper structure rear end radius3 450 mm3 450 mm
D Center to center of wheels4 040 mm4 040 mm
E Overall track length4 980 mm4 980 mm
F Overall height3 500 mm3 260 mm
G Clearance height under upper structure1 210 mm1 210 mm
H Shoe lug height36 mm36 mm
I Cab height3 130 mm3 130 mm
J Upper structure overall width3 120 mm3 120 mm
K Width from center of machine (left side)1 560 mm1 560 mm
L Width from center of machine (right side)1 560 mm1 560 mm
M Track gauge2 600 mm2 600 mm
N Overall width3 200 mm3 200 mm
O Std.Shoe width600 mm600 mm
P Minimum ground clearance480 mm480 mm

Principle Specifications

  STD Specifications
BaseBoom length6.45m (HD type)
Arm length3.25m (HD type)
Bucket capacity (ISO heaped)1.40m3(HD type)
Std.operating weight35 600kg36 100kg
EngineMake & modellSUZU AH-6HK1XYSS
Rated output202kw/2000 min-1
Piston displacement7 790 ml(cc)
Hydraulic SystemMain pump2 variable displacement axial piston pumps with regu-lating system
Max. pressure34.3 Mpa
(with auto power boost)37.3 Mpa
Travel motorVariable displacement axial piston motor
Parking brake typeMechanical disc brake
Swing motorFixed displacement axial piston motor
PerformanceTravel speed5.5/3.5 km/h
Traction force264 kN
Grade ability70%<35º>
Ground pressure72 kPa67 kPa
Swing speed9.8 min-1
Bucket229 kN
/with power boost248 kN
Arm164 kN
/with power boost178 kN
OthersFuel tank580 liter
Hydraulic fluid tank350 liter

Images of excavator:


FAQ of excavator:

Q: What are the main functions of excavators?

A: Excavator is the machine that can excavate the the soil of various types forcefully and then using hydraulic system a hydraulic force is generated and utilizing this force bucket is exchange with some other attachments then excavator can be used for multi-purpose. For exemple pile diver, hydraulic jack hammer etc...


Q: What are the main type of excavators?

A: Crawler excavator; Wheel excavator;


Q: What is the application of excavators?

A: The excavator has increased the work speed tremendously. It is used extensively in numerous fields, including the following:

•Wood removal in forests

•Normal grading work and landscaping

•Cutting of brushes with attachments

•Demolition of structures, and removal of debris

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Q:What exactly does "mining technology" mean?
First of all, the excavator is a machine name, the technology that is related to the excavator operating skills. Which is strong, that is, the institute or technical school that needs to be expressed, the school teaching skills are rich enough.
Q:Modern 335-7 excavator hydraulic oil temperature at how many degrees normal?
3, pay attention to the actual operating environment and equipment allow the use of environmental temperature is consistent4, regularly clean hydraulic oil radiator and fuel tank surface, keep it clean, in order to heat dissipation5, the correct adjustment and reasonable use of equipment, as far as possible not to make the valve stem in a semi open state, to avoid a large number of high-pressure work, oil spills over time, reducing throttling heat
Q:Dragon excavator 150 price
320DL advantages: similar models of the largest mining, durability, stability of the whole car, although high prices, but cost-effective.
Q:What does the excavator model mean at 1:35?
It's 35 of the actual excavator size, 1.
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:How to adjust the flow of the main pump of Komatsu excavator?
Should be adjusted displacement, huh, huh?.The regulator has a adjustable bolt, this is a power regulating pump, clockwise is power up, of course, is small counterclockwiseFormula: power = pressure multiplied by the flow in the engine speed will not be under pressure in the pump output flow more (note that the two pump together, at 90 degrees for an adjustment value, can not be adjusted too much, otherwise it will be my car phenomenon)In the middle of the two pumps, there is also a big number of adjusting bolts, this is to adjust the maximum tilt angle of the pump swashplate. Similarly, the greater the swashplate tilt angle, the greater the displacement of the pump. This is clockwise, the angle becomes smaller, and the counterclockwise becomes larger. I hope my answer will be helpful to you.
Q:The reason why the excavator holds down the engine is 150
[cause of trouble]1 hydraulic large pump failure2 excavator two valve problems3 hydraulic pump regulator variable chaos will also choke machine flameout failureFourIs the confluence valve of the solenoid valve blocked?5 hydraulic oil will also be more excavators hold machine flameout failureSixIf the fuel supply is poor, check whether the oil pipe is blocked or leaking[corresponding cause of failure]1 there is a problem with the circuitTwoCheck the wood and see if it's blocked. If you don't see it, get into the system3 there's something wrong with the engine4 there is water in the fuel lineFiveIf the air enters the fuel pipe, the excavator will stop and stall6, the gas supply is poor, causing the engine to stall7, the power of the engine is insufficient to achieve the power required by the hydraulic pumpEightThe hydraulic part has the stem to clamp, also can the excavator hold down the engine to extinguish the faultNineValve stem movement is not smooth, resulting in hydraulic power is greater than the output power of the engine, so the engine will stall[supplement]Corresponding troubleshooting:1., although you said that the inspection is no problem, but still suggested from the most basic fuel road cleaning, replace all filter elements, began to check. The diesel pump is removed from the oil line to see if the injection length can reach about 6~7cm.2. small arm and walk, mainly pump 2 oil supply, check the main pump cleaning 2 of the regulator.3. choke 90% is fuel road failure, it is best to carefully check the oil circuit to confirm that there is no leakage of space, such as pipe joint seal damage, filter is not in place, oil-water separator, water supply cover is not tightened, etc.. Direct connection with fuel tank test can be used.
Q:About excavator problem 50There are many types of machines,
Take the site of the bucket capacity of Yuchai heavy industry, (the various manufacturers of bucket capacity is small, can be found in the official website of the brand or the sales staff at YC210), bucket capacity of 0.9 party, the 1.2 party YC260 bucket capacity, YC360 standard bucket capacity 1.6, YC420 standard bucket capacity 1.9. To calculate the weight, if it is earthwork, then the density is 1.8 tons / square calculation; if the density of stones, according to 2~2.2 tons / square calculation.And efficiency is the various manufacturers are different, and then to our site on the YC360 to a rough estimate, there can be 240~260 cycles per hour, which is roughly by 250 to calculate the bucket, each hour of backhoe loader 250*1.6=400. How many square meters can be excavated in an hour, with the machine tonnage, brand, soil, working conditions, loading position and many other factors, you can first use YC360 to estimate. If you have any questions, you can also ask them. Or you can go straight to the construction site and have a look.I hope I can help you!
Q:Which brand is good for excavator?
Just nonsense, the assembly of domestic localization is not high, but a little fragile, is made in China, the rest are also required by others own factory production! Landlord is a prop? Do you sell Japanese cars?You want Komatsu now, Carter?. Volvo is the three in the top three. Relatively speaking, or that the characteristics of fuel economy, oil. However, according to my own ranking is. Volvo. Komatsu. Carter
Q:Buying excavator loansI am 23 years old this year.
Finance leases, details can be discussed with the sales representative. Loans Need collateral now.

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