HD22 Hydraulic Crawler Bulldozer

Engine Model: Cummins NT855-C280S10
Rated Power: 175 Kw/1800rpm
Operating Weight: 23.50 tons

Main Features

A CUMMINS NT855-C280S10 engine gives you more power and reliability you need. Improved fuel economy over the previous model with strong torque output and low fuel consumption gives you excellent overall fluid efficiency.

The highly reliable power shift transmission, stable torque converter and the two-stage straight-tooth structure’ s final drive can transmit power efficiently.

It can realize automatic fault diagnosis and full monitoring.The overall cast instrument panel integrates air conditioning, electrical appliances and instruments into one, which is more convenient and luxury.

According to the ergonomic design, the driver’s seat and armrest can be adjusted up and down, the shifting, steering and throttle are placed on the left side, and the soft shaft structure is adopted. The working device is operated on the right side, and the servo control system is used to make the operation process more light and flexible.

Technical Parameters

Overall	Dimension	5460 x 3725 x 3395 mm
	Operating Weight	23,500 kg
ENGINE	Model	Cummins NT855-C280S10/QSNT-C235
	Type	Water-cooled, In-line, overhead valve direct injection, turbocharged diesel
	Number of Cylinders	6
	Bore x Stroke	∅139.7 x 152.4 mm
	Piston Displacement	14.01 L
	Rated Power	175 KW(238HP)@1800 rpm
	Max Torque	1030 N . m @1300 rpm
	Fuel Consumption	205g/kW.h
TRANSMISSION	Torque Converter	3-element, 1 stage, 1 phase
	Transmission	Planetary gear type, power-shift, forced lubrication
	Central Drive Shaft	Spiral bevel gear, single-stage speed reduction, splash lubrication
	Steering clutch	Wet,multi-disc, spring loaded, hydraulically separated, hydraulic control
	Steering brake	floating band structure, foot brake with hydraulic booster
	Final drive	2-stage speed reduction of spur gear, splash lubrication
TRAVEL SPEED	Gear	1st	2st	3st
	Forward	0-3.6 km/h	0-6.5 km/h	0-11.2 km/h
	Reverse	0-4.3 km/h	0-7.7 km/h	0-13.2 km/h
UNDERCARRIAGE SYSTEM	Type	Sprayed beam, suspended structure of equalizer
	No. of Carrier Rollers	2 each side
	No. of Track Rollers	6 each side
	No. of Track Shoes	38 each side
	Track Shoe type	Single Grouser
	Width of Track shoe	560 mm
	Pitch	216 mm
	Track Gauge	2000 mm
	Ground Pressure	0.077 Mpa
HYDRAULIC SYSTEM	Max Pressure	14 Mpa
	Pump Type	Gear Pump
	Displacement	262 L/Min
	Bore of Working Cylinder	120 mm x 2
BLADE	Blade Type	Straight-tilt Blade	Angle Blade	Semi-U-blade
	Blade Capacity	6.4 m3	4.7 m3	7.5 m3
	Blade Width	3725 mm	4365 mm	3725 mm
	Blade Height	1315 mm	1055 mm	1374 mm
	Max Drop Below Ground	538 mm	535 mm	540 mm
	Max Tilt Adjustment	>735 mm	>500 mm	>755 mm
THREE SHANK RIPPER	Max digging depth	666 mm
	Max lift above ground	555 mm
	Weight of 3-shank ripper	2495 kg
SINGLE SHANK RIPPER	Max digging depth	695 mm
	Max lift above ground	515 mm
	Weight of 1-shank ripper	2453 kg