Category Specification
Operating Weight Approximately 20,600 kg (45,400 lb) - Varies with configuration (undercarriage, cab, bucket).
Engine Cat 3066 T (Turbocharged)
Engine Power (Net) 103 kW (138 hp) @ 1800 rpm
Bucket Digging Force 129 kN (29,000 lbf)
Stick Digging Force 103 kN (23,150 lbf)
Max. Travel Speed 5.5 km/h (3.4 mph)
Max. Drawbar Pull 201 kN (45,200 lbf)
Swing Speed Up to 11.8 rpm
Engine Details
Model: Caterpillar 3066 T

Type: 6-cylinder, 4-stroke-cycle, turbocharged diesel engine.

Displacement: 7.2 L (439 cu in)

Net Power: 103 kW (138 hp) @ 1800 rpm

Note: This engine provided more power and torque than the 320B's 3064T, leading to better performance and cycle times.

Dimensions (Approximate - For Standard Undercarriage)
Dimension Measurement
Transport Length ~ 9.54 m (31 ft 4 in)
Transport Width ~ 2.80 m (9 ft 2 in)
Transport Height ~ 2.99 m (9 ft 10 in)
Ground Clearance ~ 0.44 m (1 ft 5 in)
Track Gauge ~ 2.20 m (7 ft 3 in)
Track Length ~ 4.32 m (14 ft 2 in)
Shoe Width (Standard) 600 mm (24 in)
Hydraulic System
Type: Advanced Load-Sensing Hydraulics (ALH) or, in later models, a more advanced Pressure Compensating (PC) system. This provided smoother, more efficient operation.

Main System Pressure: 34,300 kPa (4,975 psi)

Pilot System Pressure: 3,430 kPa (497 psi)

Total Hydraulic Oil Capacity: ~ 230 L (61 US gal)

Capacities
Fuel Tank: 355 L (94 US gal)

Engine Crankcase: ~ 20 L (21 qt)

Cooling System: ~ 24 L (25 qt)

Hydraulic System: ~ 230 L (61 US gal)

Swing Drive (each): ~ 4.5 L (4.8 qt)