SD7K Bulldozer



SD7K 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

SD7K
Engine
Make Chongqing Cummins
Model WP12G250E302
Type Mechanical injector
Cooling System Type Water cooled
Turbo Charged Yes
Rated Power (KW/HP) 230/185
Rated Revolution (rpm) 2100
Maximum Torque (N.m/rpm) 1200/750-1400
No. of cylinders 6
Bore x Stroke (mm)
Displacement (cc)
Fan Drive type Mechanical
Min ground clearance(mm) 394
Compression ratio
Fuel filter 2
Fuel System Type Chongqing Cummins type, mechanical control fuel injection.
Electrical
Electrical Alternator 24V/50A
Starting Motor 8.5KW
Battery Rating 2x12v,120 Ah
LED Lights Yes
Power Train
Torque convertor / Clutch Torque Convertor
Type Power separating hydraulic mechanical type
Transmission/Gear Box
Type / Model Power 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 speed 0-10.5
Hydraulic System
Operation type Pilot hydraulic control
Hydraulic pump Yes
Type Gears oil pump
Capacity / Discharge 160(L/min)
Max system pressure (mpa) 20
Hydraulic cylinders 6
Type Two group gears pump
Ripper: Bore x Stroke (mm)
Control Valves Type Pilot operated with joystick control
Steering
Type The steering clutch is hydraulic pressed usually separated clutch
Steering Control Hydraulically operated
Under Carriage
Track gauge (mm)/Track pitch 1980/216
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)
Filtration
Engine Replaceable cartridge filter
Transmission One magnetic oil strainer and replaceable element by-pass filter
Steering & Braking One magnetic oil strainer and replaceable element by-pass filter
Hydraulic System Return 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 depth 498
Blade / Dozing Capacity (Cum) 8.1
Mass in (kg) Dozer Blade attachment / Dozing weight
Brake
Type The braking clutch is pressed by spring, separated hydraulic, meshed type Wet banding structure
Control / Actuation type foot brake, hydraulic booster
CABIN Sealed cabin with air conditioner (optional) with ROPS
INSTRUMENTATION Hour meter, fuel gauge, temperature gauge, battery charge indicator, horn, oil pressure gauge, front light, rear lights, plough lights, indicator lights
ADDITIONAL ATTACHMENTS 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 and solid waste blade with additional protection.








Electrical
Alternator 24V / 50A
Starting motor 7 KW
Battery Rating 2 x 12V, 100 Ah
LED Lights Yes
Power Train
Torque convertor / Clutch Torque Convertor
Type Power separating hydraulic mechanical type
Transmission/Gear Box Transmission Type
Type / Model Power shift planetary transmission with 3 speeds forward and 3 speed reverse, speed and direction can be quickly shifted
No. of gear forward 3
No. of gear backward 3
Max forward speed 10.8
Max reverse speed 12.9
Maximum drawbar pull 1st gear - 131.68 KN 2nd gear - 124.95 KN
Hydraulic System
Operation type Pilot hydraulic control
Hydraulic pump
Type Gears oil pump
Capacity / Discharge 170 (L/min)
Relief pressure / Max pressure 15.5 Mpa
Hydraulic cylinders
Type Double acting piston type
Blade jack lift (No. of cylinders/bore x stroke) 2 / 100 x 1000
Blade tilt (No. of cylinders/bore x stroke) 1 / 160 x 140
Ripper : (No. of cylinders /Bore x Stroke (mm)) Ripper : 1 / (184.25 x 304.8)
Control Valves Type Pilot operated with joystick control
Steering
Type Multiple disc oil, power metallurgy, disc compressed by spring
Steering Control Hydraulically operated
Under Carriage
Track gauge (mm) / Track pitch 1880
Track rollers (each side) 7
Carrier rollers (each side) 2
Track shoes (each side) 39
Shoe width (mm) 560 / 610 (Optional)
Ground pressure 56.2 Kpa including ripper and blade
No. of idler (each side) 1
Filtration
Engine Replaceable cartridge filter
Transmission One magnetic oil strainer and replaceable element by-pass filter
Steering & Braking One magnetic oil strainer and replaceable element by-pass filter
Hydraulic System Return filter
Operating Mass
Operating mass (kg) (approx.) without ripper - 16800
Blade Specifications - General
BLADE ATTACHMENT 1 - Standard Machine Tilt Semi U blade
Overall length with dozer 5167 With ripper - 6145
Max. lift above ground / height (mm) 998
Max. drop below ground/ Max digging depth 592
Blade / Dozing Capacity(Cum) 4.6
Mass in (kg) Dozer Blade attachment / Dozing weight 2100 kg
Blade width (mm) 3324
Blade height (mm) 1170
BLADE ATTACHMENT (Optional blade) Coal blade - U type
Overall length with dozer 5167.0
Max. lift above ground / Max lifting height (mm) 998.0
Max. drop below ground / Maximum digging depth 592.0
Blade / Dozing Capacity(Cum) 6.7
Mass in (kg) Dozer Blade attachment / Dozing weight 2310.0
Blade width (mm) 3676.0
Blade height (mm) 1350.0
Brake
Type Brake is oil two direction floating band break
Control / Actuation type Operated by mechanical foot pedal
CABIN Sealed cabin with air conditioner (optional)
INSTRUMENTATION Hour meter, fuel gauge, temperature gauge, battery charge indicator, horn, oil pressure gauge, front light, rear lights, plough lights, indicator lights
ADDITIONAL ATTACHMENTS 1). Air conditioner 2). U blade (Coal blade) 3). 3 shank ripper 4). Solid waste blade 5). Special machine for solid waste with broad 910mm triangular track plates and solid waste blade with additional protection.
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Sd6n Cummins Engine
sd6n Guangxi Cummins QSL9.3
  • Air Conditioner
  • U-blade (Coal Blade)
  • 3 Shank Ripper
  • Solid Waste Blade
  • Special machine for solid waste with broad 930mm triangular track plates and solid waste blade with additional protection

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