SD7 Multi-function Bulldozer

● Description

SD7 Multi-function bulldozer is a new product for digging&embeding the optical fiber cable on the ground, designed and fabricated by HBXG performing the following functions: laying&emdedding optical cable, steel cable, electricity cable, emerging the digging, laying,embedding with one process, utmostly improving the working efficiency.

● Main specifications

Max. digging &embedding depth: 1600mm

Max. Diameter of the laid hose: 40mm

Laying &embedding speed: 0~2.5km/h (Adjusting according to the working conditions)

Max. lifting weight: 700kgs

Max. diameter of the coil of hose: 1800mm

Max. width of the coil of hose: 1000mm

Width of digging: 76mm

Overall dimensions (L×W×H): 7600×4222×3190 mm (straight)

Operation weight: 19.8t(straight)

Rated  power: 131kW

Max. drawbar pull: 146.8 kN(straight)

(The efficient force depends on weight and ground surface adherence)

Ground pressure (at operating weight): 42.3KPa

Min. ground radium: 3.9 m

Min. ground clearance: 382.5 mm

Grade ability: Straight 30°, Side 25°

Diesel engine

Manufactured  factory: WEICHAI POWER COMPANY LIMITED

Model: WD10G178E25/15

Type: straight line, water-cooled, with four stroke, pressure boost and direct injection

Cylinders Number-bore diameter×travel distance: 6-126x130mm

Displacement: 9.726 L

Rated RPM: 1850  r/min

Rated power: 131   kW

Flywheel power: 121   kW

Max. torque: 830 N·m/1100-1200 rpm

Fuel  consumption (at rated working condition): ≤215 g/kW·h

oil consumption: 1.8 g/kW·h

Admissible altitude: ≤4000m

Cooling method: closed circulation water cooled

Starting method: electrically starting  at 24V  pressure 

Undercarriage system

Type: Swing type of sprayed beam, Suspended structure of equalizer bar

Number of track rollers (each side): 7

Number of carrier rollers (each side): 1

Pitch (mm): 216

Width of shoe (mm): 910

Gear: 1st 2nd 3rd

Forward (Km/h): 0-3.9  0-6.5  0-10.9

Backward (Km/h): 0-4.8  0-8.2  0-13.2

Implement hydraulic system

Max. system pressure (MPa): 18.6

Pump type:  Two groups Gears pump

System output(L/min): 194

Driving system                   

Torque converter: Torque converter is power separating hydraulic-mechanic type

Transmission: Planetary, power shift transmission with three speeds forward and three speeds reverse, speed and direction can be quickly shifted.

Steering clutch: The steering clutch is hydraulic pressed, usually separated clutch.

Braking clutch: The braking clutch is pressed by spring, separated hydraulic, meshed type.

Final drive: The final drive is two-stage planetary reduction gear mechanism, splash lubrication.