SD7K Bulldozer

SD7K Bulldozer Semi-rigid suspended, elevated sprocket, the tier electronic control engine. hydrostatic transmission infinitely variable speed, full power matching, automatic control independent cooling system. Electronically controlled engine with full power matching pattern, low pollution and energy saving; The SD7K bulldozer is integrated with modular design. easy to repair and maintenance; Electric proportion control transmission system and implement pilot hydraulic control, operation accurately and comfortable. Human-computer interaction instrument display, fully sealed air conditioning cab. It can be equipped with angle blade. u-shaped blade, single shank ripper, three shanks ripper and variety of working device; It is an ideal mad-line used in transportation construction, desert, oil field, electric power project mining and other large earth moving program..

  • Engine - Cummins (Electronic Injectors)
  • Engine Rated Power (185KW, 230HP)
  • Operating weight(without ripper) – 25,500
  • Pilot joy stick hydraulic control
  • Blade width (mm) - 3550
  • Dozing capacity – 8.1


MakeChongqing Cummins
TypeMechanical injector
Cooling System TypeWater cooled
Turbo ChargedYes
Rated Power (KW/HP)230/185
Rated Revolution (rpm)2100
Maximum Torque (N.m/rpm)1200/750-1400
No. of cylinders6
Bore x Stroke (mm) 
Displacement (cc) 
Fan Drive typeMechanical
Min ground clearance(mm)394
Compression ratio 
Fuel filter2
Fuel System TypeChongqing Cummins type, mechanical control fuel injection.
Electrical Alternator24V/50A
Starting Motor8.5KW
Battery Rating2x12v,120 Ah
LED LightsYes
Power Train 
Torque convertor / ClutchTorque Convertor
TypePower separating hydraulic mechanical type
Transmission/Gear Box 
Type / ModelPower shift planetary transmission with 3 speeds forward and 3 speed reverse
Gear forward (5km/h)0-10
Gear backward (5km/h)0-10
Max forward speed (5km/h)0-10.5
Max reverse speed0-10.5
Hydraulic System 
Operation typePilot hydraulic control
Hydraulic pumpYes
TypeGears oil pump
Capacity / Discharge160(L/min)
Max system pressure (mpa)20
Hydraulic cylinders6
TypeTwo group gears pump
Ripper: Bore x Stroke (mm) 
Control Valves TypePilot operated with joystick control
TypeThe steering clutch is hydraulic pressed usually separated clutch
Steering ControlHydraulically operated
Under Carriage 
Track gauge (mm)/Track pitch1980/216
Track rollers (each side)7
Carrier rollers (each side)1
Track shoes (each side))40
Shoe width (mm)560
Ground pressure (kpa)77.9
No. of idler (each side) 
EngineReplaceable cartridge filter
TransmissionOne magnetic oil strainer and replaceable element by-pass filter
Steering & BrakingOne magnetic oil strainer and replaceable element by-pass filter
Hydraulic SystemReturn filter
Operating Mass 
Operating mass (kg) (approx.)Without Ripper-25500
BLADE ATTACHMENT 1 Tilt Semi S blade
Overall dozer dimension (mm)5876x3550x3402
Blade / Dozing Capacity (Cum)8.1
Dozer Blade attachment / Dozing weight (kg) 
Blade width (mm)3550
Blade height (mm)950
BLADE ATTACHMENT (Optional blade)Coal blade - U type
Overall length with dozer 
Max. lift above ground / Max lifting height (mm) 
Max. drop below ground / Maximum digging depth498
Blade / Dozing Capacity (Cum)8.1
Mass in (kg) Dozer Blade attachment / Dozing weight 
TypeThe braking clutch is pressed by spring, separated hydraulic, meshed type Wet banding structure
Control / Actuation typefoot brake, hydraulic booster
CABINSealed cabin with air conditioner (optional) with ROPS
INSTRUMENTATIONHour meter, fuel gauge, temperature gauge, battery charge indicator, horn, oil pressure gauge, front light, rear lights, plough lights, indicator lights


SD7K Bulldozer
SD7K dozer for ripping
sd7k hbxg Dozer

Optional Attachment 

1). Stage III engine
2). Air conditioner
3). U blade (Coal blade)
4). 3 shank ripper
5). Single shank ripper
6). Solid waste blade
7). Special machine for solid waste with broad 910mm triangular track plates