21 tons crawler full hydraulic track/crawler excavator

specifications:

Minimum ground clearance: 468 mm

Overall length: 9549 mm

Operating weight: 21.6 t

Overall height: 3073 mm

Ground pressure: 47 kPa

Overall width: 2800 mm

ENGINE

Model

Cummins 6B5.9-C

Type

Water-cooled,6-cylinder inline,turbocharged,air-to-air 

intercooled

Quantity of cylinders

6

Bore x stroke

102 x 120 mm

Displacement

5.9 L

Power output

112 kW/1950 rpm

Maximum torque

614 Nm/1500 rpm

HYDRAULIC SYSTEM

Pump

Imported

Type

Variable double-piston pump

Maximum discharge flow

2 x 208 L/min

Boom, arm and bucket

31.9 MPa

Travel circuit

31.9 MPa

Swing circuit

25.5 MPa

TRAVEL SYSTEM

Travel motor

Variable axial piston

Travel brakes

Lubricated double-disc

Parking brake

Pressure release

Travel shoes

2 x 46

Drawbar pulling force

201 kN

Travel speed

3.9~5.6 km/h

Gradeability

70% (35)

Ground clearance

468 mm

CONTROLS & CABIN

Cabin

New ergonomic cab design strengthens the 

structure of the entire stamping with such 

features as: strong impact resistance, 

vibration damping pads, vibration 

absorption, comfortable seat 

with broad vision, leather like and ABS 

& PVC plastic technology applied to interior,

smooth contour lines of the outer surface & durability.

Controls

Two joysticks, two foot pedals, manual-/electronic-controlled

 throttle.Functions of two joysticks: digging & swinging.

Boom cylinder

120 x 85 x 1285 mm

Arm cylinder

135 x 95 x 1490 mm

Bucket cylinder

115 x 80 x 1120 mm

SWING SYSTEM

Swing motor type

Swash plate piston motor

Brake

Pressure release

Parking brake

Lubricated double-disc

Swing speed

11.9 rpm

Tail swing radius

2905 mm

BUCKET

Bucket capacity

 Bucket 1.2 m3 (SAE)