SD7 BULLDOZER

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Main specifications

Operatingweight(not including ripper)--------------------------------------------------------------------------------23800㎏

Ripperweight---------------------------------------------------------------------------------------------------------------3900㎏

Groundpressure(without ripper)----------------------------------------------------------------------------------------71.9kPa

Trackcenter distance ----------------------------------------------------------------------------------------------------1980mm

Gradeability ---------------------------------------------------------------------------------Latitude30 ° Transverse 25°

Groundclearance ----------------------------------------------------------------------------------------------------------404mm

Overalldimensions(L×W×H) ： -------------------------------------5677×3500×3402(with straighttilting blade)

Diesel engine specifications

Model A-----------------------------------------------------------------------------------------------NT855-C280(Cummins)

Ratedspeed------------------------------------------------------------------------------------------------------------2100RPM

Flywheelpower(speed at 2100 rpm) ----------------------------------------------------------------------------------169kW

Min.Fuel Consumption ---------------------------------------------------------------------------------------≤235(g/Kw.h)

Model B-----------------------------------------------------------------------------------------------C6121ZLG10(Shanghai )

Ratedspeed------------------------------------------------------------------------------------------------------------2100RPM

Flywheelpower(speed at 2100rpm) ---------------------------------------------------------------------------------169kW

Min.Fuel Consumption ----------------------------------------------------------------------------------------≤222(g/Kw.h)

Theorytravel speed (km/h)

1stgear forward0-3.9 1st gear backward 0-4.8

2ndgear forward0-6.5 2nd gear backward 0-8.2

3rdgear forward0-10.9 3rd gear backward 0-13.2

Dozingoperation rate(moving distance 40m) 350m³/h

Torqueconverter

Torqueconverter used in SD7 bulldozer is power separating hydraulic-mechanic type.

Transmissionassembly

Itintegrates center drive, transmission and speed changing control valve into onecomponent. It can be assembled or disassembled as a assembly or as a part. Itis very convenient to service. Transmission is multi-stage planetary gear driveto realize modular assembling and disassembling. The shift can be changed among1st gear, 2nd gear, 3rd gear forward or reverse rapidly, throughmulti-functional control valve.

Steeringand braking clutch

Steeringclutch and braking clutch are adjustment free, oil-type , multi-disc clutch.The braking clutch is pressed by spring, separated hydraulicly, constant meshedtype. Steering clutch is hydraulic pressed, non-constant engaged clutch. Theaction of steering and braking is combined, operation manually to realizesteering slowly, sharply and braking. The braking of entire machine can berealized through the pedal. Parking braking rod is designed to keep theundercarriage system in braking condition when starting the engine andguarantee the machine not to slip on slope when starting the engine.

Finaldrive

Finaldrive is two-stage planetary reduction gear mechanism. It is mounted at outsideof steering and braking clutch. Combined sprocket segment is very convenientfor assembling, disassembling and service.

Hydraulicsystem of the machine

Itis composed of oil pump, transmission control valve, steering and braking controlvalve, sequence valve, relief valve at torque convertor outlet, filter andlines.

Mainpump-------------------------------------------------------------------------------------------------------------Gearpump

Oilflow----------------------------------------------------------------------------------------------------------------160　L/min

Workingpressure ------------------------------------------------------------------------------------------------------3.1　MPa

Rops with air conditioner cab

Thecab is hexagonal thin wall box-type structure. Glass is mounted at sixsides with wide viewing area. Pulling and pushing glass is installed at backside. Air conditioner is top-mounted with functions of cooling and heating. Thestructure of Rop is rigid. It can protect the driver efficiently when thebulldozer is in special condition.

Implementhydraulic system

Implementhydraulic system can control lifting, lowing and tilting of the blade. It alsocan control lifting, lowing of the ripper. It mainly consists of oil pump,cylinder, inlet valve group diverter valve group, oil tank line and controllingparts.

Mainpump ------------------------------------------------------------------------------------------High pressure gear pump

Oilflow --------------------------------------------------------------------------------------------------------------194　L/min

Systemworking pressure-------------------------------------------------------------------------------------------18.6　MPa

Leftand right undercarriage system

Thetrack is triangle shape. The sprocket is elevated. There are two idlers infront and at rear of the frame and seven track roller. Recoil spring andcylinder adjuster is mounted at the undercarriage. The rear end ofundercarriage frame is supported on the pivot. The front end is articulatedwith the equalizer bar. Choosing different undercarriage system according todifferent implement. The customer is required can guarantee center gravity ofthe machine to be at best efficient position. Choosing different width of trackshoe can ensure the bulldozer developing its optimum traction efficiency.

Maintenancefilling capacity

Fueltank --------------------------------------------------------------------------------------------------------------------- 450L

Watertank of cooling system ---------------------------------------------------------------------------------------------118L

Camshaftbox of the engine-------------------------------------------------------------------------------------------------20L

Bevelgear case--------------------------------------------------------------------------------------------------------------150L

Implementoil tank---------------------------------------------------------------------------------------------------------100L

Pivotlubricating tank-------------------------------------------------------------------------------------------------------15L

Finaldrive ------------------------------------------------------------------------------------------------------------------15L

Optional implement and components (*ordinary)

1)cab

A、Rops with air conditioner cab 　＊

B、Rops cab

C、Rops canopy

2)Frontmounted implement

A、straight tilting blade　　　　　　＊

B、Angle blade

C、U-type blade

3)Rearmounted implement

A、single shank ripper　　　＊

B、three shanks ripper

C、back drawing mechanism

4)Trackshoe of undercarriage

Optionaltrack shoe width

A、510mm B、560mm 　　　　＊

C、660mm D、914mm

5)winchdozer used in forest, desert dozer, LGP dozer ,HW dozer can be chosen accordingto special requirements of customer.

Q: which is the best ?: for gaming i highly recommend i5-2500 which is best because it is more powerful than fx-8120 and is really worth for its performance

Q: Are there any benchmarks out yet? Aren't they supposed to be out in a week or 2. Also are the quad core or six core clock speeds out? And lastly, do you think sandy bridge will drop their prices on the 2500k and 2600k for the competition? Sorry for all of the questions, I was doing research on this a while ago and figured I'd find stuff on it by now...but maybe I don't know where to look.: Highly doubtful Even if the 8 core version does edge out the i7 2600K, it will still be behind in core-to-core performance which is the most important thing because the vast majority of applications do not use more than 1-4 cores

Q: How do fire tankers fight fires? (what ever they are)How do bulldozers fight fires? (do they really?)How do slip-on units fight fires? (what?)Thanks a bunchxx: Why do u need to know this? Well anyway Umm well helicopters have a massive bucket and they scoop water from lakes or pools and then they fly over the fire and tip it out. Im not quite sure about the rest. I reckon bulldozers run over the flames and put it out. That was as stupid guess. Bye

Q: With AMD failing miserably with the bulldozer chip set,is there gonna be any improvement over the piledriver series when its released Q1 2012?: Piledriver will only be a re tweak of the current bulldozer and is expected to only gain a projected 10-15% performance increase on current FX cpu's Given that projected increase in performance would mean it still wouldnt compete against Intels current sandybridge cpu's let alone future Intel cpu releases

Q: I have about 1 acre of former choppy pasture, I first hired an excavator with small dozer guy who left it hacked up, now I want a perfect flat yard and smooth hill and dale. The yard goes right up to the house. I can hire a guy with a brand new D5 (I think they're like $160,000) for 8 hours in one day -- for the same price as a guy with various much smaller equipment for 16 hours, stretched over a week. I prefer to get it all done at once, but wondered if the smaller equipment can refine and fine tune better than the D5. There's a lot to do. Which would you choose?: that price is supper crazy for a day but the smaller equipment can do a better finish

Q: How much time do the full oil 160 bulldozer: Hello, probably work 12 hours or so, hope to adopt!

Q: Hi so, I currently have a dual core processor and obviously want to upgrade, I do video editing and gaming alot, I have a choice ofupgrade to intel i5 2500korNew motherboard + AMD Bulldozer FX-4100 (and 8gb of ram)They are the exact same price and I have an AMD radeon GPU is that makes any difference ?Thank you: If you are going only with 1. i5 or 2. new mb, amd cpu and the 8gb ram ill go with #2 but if u are getting the i5 +mb +ram ill go with the i5 in a heart beat and no, the GPU wont make a difference

Q: What is the bulldozer earthwork quota to be distinguished from, and the amount of work is calculated separately: For example, in road construction, the bulldozer can complete the roadbed treatment, roadside soil lateral Tim building height not more than 1 meters along the embankment, the central line of the road to shovel transfer, transport of soil subgrade excavation, embankment soil embankment built semi mountain semi graben. In addition, bulldozers can also be used to smooth the site, collect loose material, and remove obstacles in the work area.

Q: Hey im a senior in high school and im about to play college football next year. Ill be playing at campbell university most likely and most likely tight end. The coach wants me to get bigger and stronger. Right now im probably 6'3'' 200 lbs. Ive got the speed but i dont have the size. what kind of pre work out should i get to get amplified results? and if you could also recommend a post workout supplement that would be great..: Nowadays you choose to try to beat your one-rep maximum record. What is the greatest strategy to prepare for this large carry? What sort of warm-up? What can you do psychologically? Should you modify your diet plan that day?

Q: that customizes bulldozers when it customizes x bulldozers in a month. How many bulldozers (x) per month must the company customize to make the maximum possible profit, and what is the (P) maximum profit? SHOW WORK pleaseeee?!?!factoring and quadratics help pleasee!!!: Differentiate the function... P' = -4x So x = 0 So the existing max profit occurs where there is 0 bulldozer per month to have the max. profit!! Good luck!

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