311B
Improved serviceability, performance and rugged durability combine to maximize productivity. Better controllability, simplified service and a more comfortable operator station increase productivity and lower operating costs.
Product Specs
Engine
- Engine Model
- Cat 3064T
- Engine Model
- Cat 3064T
- Flywheel Power
- 79 mm H2O
- Flywheel Power
- 79 hp
- Gross Power
- 85 mm H2O
- Gross Power
- 85 hp
- ISO 9249
- 79 mm H2O
- ISO 9249
- 79 hp
- SAE J1349
- 78 mm H2O
- SAE J1349
- 78 hp
- EEC 80/1269
- 79 mm H2O
- EEC 80/1269
- 79 hp
- Bore
- 4 in
- Bore
- 4 in
- Stroke
- 5.1 in
- Stroke
- 5.1 in
- Displacement
- 259 in³
- Displacement
- 259 in3
Weights
- Operating Weight
- 27680 lb
- Operating Weight
- 27680 lb
Drive
- Maximum Drawbar Pull
- 20720 lb
- Maximum Drawbar Pull
- 20720 lb
- Travel Speed
- 3.4 mile/h
- Travel Speed
- 3.4 mph
Swing Mechanism
- Swing Torque
- 22422 lb/ft
- Swing Torque
- 22422 lb ft
- Swing Speed
- 10.8 r/min
- Swing Speed
- 10.8 RPM
Hydraulic System
- Main Implement System - Maximum Flow (2x)
- 28 gal/min
- Maximum Pressure - Implements
- 4340 psi
- Maximum Pressure - Implements
- 4340 psi
- Maximum Pressure - Travel
- 4980 psi
- Maximum Pressure - Travel
- 4980 psi
- Maximum Pressure - Swing
- 3340 psi
- Maximum Pressure - Swing
- 3340 psi
- Pilot System - Maximum Flow
- 4.5 gal/min
- Pilot System - Maximum Flow
- 4.5 gal/min
- Pilot System - Maximum Pressure
- 570 psi
- Pilot System - Maximum Pressure
- 570 psi
- Boom Cylinder - Bore
- 4 in
- Boom Cylinder - Bore
- 4 in
- Boom Cylinder - Stroke
- 40 in
- Boom Cylinder - Stroke
- 40 in
- Stick Cylinder - Bore
- 4.3 in
- Stick Cylinder - Bore
- 4.3 in
- Stick Cylinder - Stroke
- 47 in
- Stick Cylinder - Stroke
- 47 in
- Bucket Cylinder - Bore
- 4 in
- Bucket Cylinder - Stroke
- 37 in
Service Refill Capacities
- Fuel Tank
- 66 gal (US)
- Fuel Tank
- 66 gal
- Cooling System
- 4.1 gal (US)
- Cooling System
- 4.1 gal
- Engine Oil
- 3.4 gal (US)
- Engine Oil
- 3.4 gal
- Swing Drive - Each
- 0.74 gal (US)
- Swing Drive (each)
- 0.74 gal
- Final Drive - Each
- 0.69 gal (US)
- Final Drive (each)
- 0.69 gal
- Hydraulic System - Including Tank
- 41.5 gal (US)
- Hydraulic System (including tank)
- 41.5 gal
- Hydraulic Tank
- 25.9 gal (US)
- Hydraulic Tank
- 25.9 gal