crawler bulldozer

SD7 bulldozer are 220 horsepower track-type dozer with elevated sprocket, hydraulic direct drive, semi-rigid suspended and hydraulic controls. It can be equipped with straight tilting blade, angle blade, coal pushing blade, single shank ripper, three shanks ripper. The cab is Rops with air conditioner.

SD7-220 horsepower, elevated sprocket bulldozer integrate modern secience into it, its new structure, good performance, high working efficiency, safety and comfortable operation condition, realiable entire quality, excellent service is your wise choosing.

Main specifications

Operating weight(not including ripper) 23800

Ripper weight 3900

Engine flywheel power 162 k

Ground pressure(without ripper) 71.9 kPa

Ground clearance 404 mm

Ground contact length 2890 mm

Track center distance 1980 mm

Overall dimensions(L × W × H) (with single shank ripper) 7604 × 3823 × 3402(with straight tilting blade)

Gradeability Latitude30 ° Transverse 25 °

Theory travel speed (km/h)

1st gear forward 0-3.9 1st gear backward 0-4.8

2nd gear forward 0-6.5 2nd gear backward 0-8.2

3rd gear forward 0-10.9 3rd gear backward 0-13.2

Dozing operation rate(moving distance 40m ) 350m 3 /h

Diesel engine specifications

Model NT855-C280 (Cummins)

Type water cooled, single line, vertical, four strokes, turbocharged, 6-cylinders, diameter 140mm

Rated speed 2100 RPM

Flywheel power(speed at 2100 rpm) 162 kW

Starting mode 24V electric starting

Torque converter

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

Transmission assembly