جديد حفارة مجنزرة JCB JS205

ENGINE
Model CUMMINS 6BT 5.9C
Type Four-stroke in-line six-cylinder diesel engine with turbocharging, liquid-cooled and direct injection.
Total power 104 kW (140 hp)
Displacement 5.88 litres
Air filtration Two-stage dry air filter and pre-filter
Cooling Liquid cooling with a powerful radiator
Starter 24 V
Generator 24 V, 75 A

CHASSIS
Track options of 500, 600, 700 and 800 mm
Supporting and backing slides Heat-treated, sealed, lubricated
Track tension adjustment By means of lubricated cylinders
Tension wheel Sealed, lubricated, with reinforced spring
Number of track guides 2 on each side
Number of support rollers 7 on each side (SC), 8 on each side (LC and NLC)
Number of support rollers Two per side
Number of track tracks 49 per side (LC and NLC), 46 per side (SC)

Filling tanks
Fuel tank l 343
Engine coolant l 25.5
Engine lubrication system l 19
Hydraulic system l 203
Hydraulic tank l 120
Turning mechanism l 5
Travel mechanism l 2 x 5

WEIGHT AND GROUND PRESSURE
Standard machine with 600 mm tracks, 0.9 m3 bucket, operator, fully filled with lubricants and fuel
Operating weight 21500 kg
Specific ground pressure 0.49 kg

MECHANISM OF TRAVEL
Type Hydrostatic transmission
Hydraulic travel motors Axial piston type, fully protected by the chassis frame
Gearbox Planetary gearbox, bolted drive sprockets
Service brake Balancing valve to prevent over-speeding on inclined surfaces
Parking brake Automatic spring disc type with hydraulic brake release mechanism
Lift 70 % (35°), continuous
Travelling speed 3.8 km/h
Traction force 166 kNm

HYDRAULIC SYSTEM
Pumps
Main pumps Two adjustable axial piston pumps
Maximum flow 2 x 220 l/min
Servo-controlled gear pump
Maximum flow rate 20 l/min
Hydraulic distributor Combined four- and five-section hydraulic distributor with a section for the auxiliary hydraulic line as standard.
Safety valve settings Boom/arm/bucket 343 bar
Rotation circuit of the turntable 289 bar
Stroke circuit 343 bar
Control circuit 40 bar

PLATFORM RETURN SYSTEM
Hydraulic slewing motor Axial piston
Slewing brake Hydraulic brake and electrically operated disc type parking brake
Planetary gearbox
Torque of the steering mechanism 65.2 kNm
Large diameter, internal toothed, fully sealed, oil-bath slewing mechanism.
Rotation speed 12 rpm