ZHENGZHOU YUTONG YTD8B Bulldozer Bulldozer

Breakthrough design of conventional caterpillar bulldozer. The drive sprocket is separate from the travel frame, which is arranged axially in line with final drive, steering and braking clutch and central transmission, and, the caterpillar is designed with triangular arrangement to eliminate the impact load of ground directly transmitted to the drive sprocket, so that the service life of the transmission system is increased by 30%.

The travel system is provided with elastic suspension so that the idler overrides the obstruction. The continuous sub-suspension may be handled against the ground through its floating action. The bumper absorbs the ground impact load to reduce the impact load to chassis by 50% approximately, to improve traveling smoothness and operator's comfort, to increase the contact area between caterpillar and ground (by 15% approximately) and to improve traction performance of the complete vehicle. The pivoting articulation between the travel frame and vehicle frame replaces conventional splayed beam structure and improves the connecting rigid of travel frame and vehicle frame. The gravity center of the complete vehicle may be easily adjusted to accommodate the operating requirements of equipment to the gravity center of the complete vehicle.

Item

Parameters

Model/Main parameter

YTD8B/320 horsepower

Operating mass of whole bulldozer (kg)

Including rippe(Straight tilt blade)

36800kg

Encluding rippe(Straight tilt blade)

32100kg

Overall dimension of whole bulldozer (Length×width×height)

Including rippe(Straight tilt blade)

7751×3940×3549(mm)

Encluding rippe(Straight tilt blade)

6100×3940×3549（mm）

Minimum turning radius

Turning radius

3150/5050 mm

Flywheel power (hp/kW)

320/235

Maximum traction (kN)

388

Gradeability (°)

纵30°/横25°
Longitudinal: 30°/Horizontal:25°

Ground pressure (kPa)(Excluding ripper)

93

Ground clearance (mm)

556

Performance Parameters of
Engine

Model/Type

NTA855-C360S10/6-cylinder, in-line, four-stroke, turbocharged and intercooled, water-cooled

Manufacturer / Country of Origin (Manufacturer)

Chongqing Cummins Engine Co., Ltd/USA Cummins

Applicable environmental / altitude (C0/m)

-10—40/3000

Number of cylinders - Bore × Stroke mm

6-140X152

Piston displacement L

14

Rated power hp/kW

345/257

Rated rotation speed r/min

2100

Maximum torque/rotation speed N.m/rpm

1353/1400

Torque reserve coefficient

20%

Lowest fuel consumption g/kW.h

208g/kw.h

Engine oil consumption g/kW.h

MAX0.24L/h

Starting method

Electrical start

Power of starter motor kW

8

Generator model/country of origin (manufacturer)

3078115

Voltage/current of generator V/A

24/50

Type of air filter

Dry type paper air filter