SD7P bulldozer
SD7P bulldozer is designed according to the original drawings of
D85-21 bulldozer from komatsu and most of the main parts can be
interchanged with it. SD7P bulldozer have characteristics of strong
power, good performance, high working efficiency, steady movement,
wide viewing, safe and comfortable operating condition and
convenient maintenance. It also adopted electronic monitoring.
Diesel engine: Manufacturer : CHONGQING Cummins Model: NT855C280
Type:in-line,water-cooled,4-cycle,overhead valve direct
injection,turbochanged diesel Rated Revolution:2000rpm Ratde
Horsepower:169KM(230HP)/2000rpm Cylinder
Number-Bore*Stroke:6-139.7mm*152.4mm Piston displacement:14010ml
Min.Fuel Consumption: 217g/kw.h Max.Toque efficiency: 1.28 TRAVEL
SPEED Gear 1st 2nd 3rd FORWARD(km/h): 0-3.8 0-6.8 0-11.8
REVERSE(km/h): 0-4.9 0-8.5 0-14.3 POWER TRANSMITTING SYSTEM Torque
converter: 1stage.1phase.3elements Transmission: planetary
gear,multi-disc clutch.hydraulically connected.fouced lubricaton
Main Dirve: Spiral bevel gear,singe-stage speed reduction,splash
lubricaton Sleering clutch: et,multi-disc,spring
loaded,hydraulically separated,hydraulic control Final Drive:
Two-stage speed reduction of spur gear,splash lubrication
UNDERCARRIAGE SYSTEM Type: swing type of sprayed beam ,suspended
structure of equalizer bar Carrier Rollers: 2/each side Track
Rollers: 7/each side(single flange 5.double flange2) Track Type:
assembled single-grouser shoes(39/each side) Width of Track shoes:
560mm(Standard)610mm.660mm(Optional) Pitch: 216mm POWER TAKE SHAFT
Location: at the middle of the back of steering and frame case
Revolution: 1900rpm Revolve Direction: anti-clockwise(rearview)
HYDRAULIC SYSTEM Max pressure: 19.1Mpa(195kg/cm2) Discharge:
194L/min(at engine revolution of 2000rpm) Pump Type: tandem gear
pump Bore of the Wrking Cyinder*Number: 110mm*2(double-acting type)
Type Contral Vale:lubricated valve Bore*NO.(Tilt Cylinder): 160mm*1
OTHER SPECIFCATINONS Min.Ground Clearance: 405mm Operating Weight:
26990kg including cabin and ripper Ground Pressure: 0.078Mpa
Min.Turning Radius:3300mm Track Ground Length:2840mm Track
Gauge:2000mm Max.Lift Height of Blade:1210mm Max.Pulling
Force:206KN (21T) Max.Drop below the Ground of blade:540mm
Productivity : 350m3/h(theoretical value at a transport distance of
40
