520HP New Type Big Crawler Bulldozer SD52-5

• Warranty: 1 Year
• Type: Universal Type
• Transmission: Power Transmission
• Walking Mode: Crawler
• Load and Unload Method: Front Discharge
• Engine Power: <74kw
• Model NO.: SD52-5
• Certification: CE, ISO9001: 2000
• Condition: New
• Color: Yellow
• Transport Package: Nude
• Specification: 4252*2680*2760mm
• Trademark: chinese brand
• Origin: China
• HS Code: 8429119000

Product Description

520HP  New Type Big Crawler Bulldozer SD52-5

The double pump confluence system with unloading function can automatically or manually switch over the individual pump based on the working condition and unload the high pressure by auxiliary pump, featuring high intelligence and energy-saving.
The Factory's independently developed load-sensing system features smooth digging and loading combination motions, low motion changeover impact, and high efficiency and energy-saving.
During the digging and loading combination operations, the engine power to the drive system can be easily cut off so that all power is supplied to the hydraulic system to improve the digging and loading efficiency.
The machine automatically switches to two-wheel drive mode while traveling in gear IV to eliminate the parasitic power loss.

 

•  

   company name : Tewrex
• Suzhou subsidiary Address: Room 602, Building 2, Tiandu Building, No.211 Changjiang Road, High-tech Zone, Suzhou City
•   

PRODUCT			SD52-5
			(STANDARD)
PERFORMANCE PARAMETERS	Operatiing Weight (kg)		70630
	Rated horsepower (kw/hp)		450/604(1800)
	Minimum turning radius (mm)		3864/6786
	Ground pressure (kpa)		151
ENGINE	Model		QSK19
	Emission		EU A/CHINA
	No.of cylinders×Bore×stroke (mm×mm)		6×159mm×159mm
	Piston displacement (L)		19
	Horsepower/rpm (kw/rpm)		450/1800
	Maximum torque (N.m/r/min)		3019/1300
DIMENSIONS	Length (mm)		10390
	Width (mm)		4690
	Height (mm)		4370
TRAVELING PERFORMANCE	Forward/Reverse (km/h)		0~11.8/0~15.8
	Gradeability (deg)		30
	Clearance (mm)		610
TRANSMISSION	Torque convertor		Consists of a water-cooled,
			3-element, 1-stage, 1-phase, torque converter with lockup clutch
			and a planetary gear, multiple-disc clutch transmission which is
			hydraulically actuated and force-lubricated for optimum heat
			dissipation
	Gear box		Planetary gear, multi-disc clutch, power shift, forced lubrication
	Main drive		Spiral bevel gear, splash lubrication, single-stage speed reduction
	Clutch		Wet, multi-disc, spring loaded, hydraulically separated, hydraulic control
	Brake		Wet,multi-disc,spring loaded,hydraulically separated
	Final driver		Primary spur gear plus primary planetary gear reducer
	Steering pump		2 Gear pump,pump1 flow 112mL/r,pump2 flow 160mL/r
UNDERCARRIAGE	Suspension		Oscillating equalizer bar and pivot shaft
	Track gauge (mm)		2500
	Shoe width (mm)		610(710/810 optional)
	Track length on ground (mm)		3840
	Number of shoes (each side)		40
	Pitch (mm)		280
	Carrier rollers (each side)		2
	Track rollers (each side)		7
WORKING HYDRAULIC SYSTEM	Working pump		Gear pump
	Scavenging pump		Gear pump
	Pump of cooling system		variable displacement piston pump, standard flow 140mL/r
	Valve		Multi-way valve
	Bore of blade lift cylinder (mm)		φ150
	Bore of blade tilt cylinder (mm)		φ225
	Bore of ripper lift cylinder (mm)		φ225
	Bore of ripper tilt cylinder (mm)		φ200
TANK CAPACITY	Fuel tank capacity (L)		1140
	Working hydraulic tank capacity (L)		246
	Traveling hydraulic tank capacity (L)		275