- Max Cutting Height: 25.14 ft / 7660 mm
- Max Loading Height: 17.39 ft / 5300 mm
- Max Reach Along Ground: 23.92 ft / 7290 mm
- Max Vertical Wall Digging Depth: 13.62 ft / 4150 mm
Published dimensions and weight
Caterpillar 311B
Weighing roughly 11.1 t and rated at 79 hp, the Caterpillar 311B is a hydraulic excavator in its size class.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight24526.5 lb11125 kg
03Selected published values84
Hydraulic excavators are commonly used for digging, trenching, loading and site preparation. Published rows for Caterpillar 311B include a published maximum digging depth of 15.56 ft / 4740 mm, published operating weight of 24526.5 lb / 11125 kg, published engine power of 85 hp / 63.4 kw. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Max Cutting Height” field (25.14 ft / 7660 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Max Loading Height” field (17.39 ft / 5300 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Max Reach Along Ground” field (23.92 ft / 7290 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Boom/Stick Option (Hex) 1
Max Cutting Height25.14 ft7660 mm
Max Loading Height17.39 ft5300 mm
Max Reach Along Ground23.92 ft7290 mm
Max Vertical Wall Digging Depth13.62 ft4150 mm
Max Digging Depth15.56 ft4740 mm
Boom/Stick Option (Hex) 1Boom 14'1" (4300mm) / Stick 1950mmBoom 14'1" (4300mm) / Stick 1950mm
Boom/Stick Option (Hex) 2
Shipping Length Of Unit23.79 ft7250 mm
Max Cutting Height25.58 ft7795 mm
Shipping Height Of Unit9.06 ft2760 mm
Max Loading Height17.85 ft5440 mm
Max Reach Along Ground24.84 ft7570 mm
Max Vertical Wall Digging Depth14.59 ft4445 mm
Max Digging Depth16.57 ft5050 mm
Boom/Stick Option (Hex) 2Boom 14'1" (4300mm) / Stick 7'5" (2250mm)Boom 14'1" (4300mm) / Stick 7'5" (2250mm)
Boom/Stick Option (Hex) 3
Shipping Length Of Unit23.82 ft7260 mm
Max Cutting Height26.65 ft8120 mm
Max Loading Height18.92 ft5765 mm
Shipping Height Of Unit9.06 ft2760 mm
Max Reach Along Ground26.58 ft8100 mm
Max Vertical Wall Digging Depth16.29 ft4965 mm
Max Digging Depth18.38 ft5600 mm
Boom/Stick Option (Hex) 3Boom 14'1" (4300mm) / Stick 9'2" (2800mm)Boom 14'1" (4300mm) / Stick 9'2" (2800mm)
Dimensions
Ground Clearance1.45 ft440 mm
Height To Top Of Cab9.06 ft2760 mm
Width To Outside Of Tracks8.17 ft2490 mm
Length Of Track On Ground8.57 ft2610 mm
Tail Swing Radius6.99 ft2130 mm
Removal Counterweight Clearance3.02 ft920 mm
Undercarriage
Track Gauge6.53 ft1990 mm
Shoe Size19.69 in500 mm
Drawbar Pull20720 lb92.17 kN
Ground Pressure5.51 psi38 kPa
Max Travel Speed3.42 mph5.5 km/h
Engine
Number Of Cylinders44
Engine Make22362236
Engine Model3064T3064T
Net Power79 hp59 kw
Gross Power85 hp63.4 kw
Power Measured @1800 rpm1800 rpm
Displacement259 cu in4.3 L
AspirationTurbochargedTurbocharged
Bore4 in101.6 mm
Stroke5.1 in129.6 mm
Flywheel Power79 hp59 kw
Eec 80/126979 hp59 kw
Sae J134978 hp58.2 kw
Iso 924979 hp59 kw
Operational
Operating Weight24526.5 lb11125 kg
Fuel Capacity66.1 gal250 L
Cooling System Fluid Capacity4.1 gal15.5 L
Hydraulic System Fluid Capacity41.5 gal157 L
Operating Voltage24 V24 V
Engine Oil Capacity3.5 gal13 L
Swing Drive Fluid Capacity0.8 gal2.8 L
Alternator Supplied Amperage50 amps50 amps
Hydraulic System Relief Valve Pressure4980 psi34335.9 kPa
Hydraulic Pump Flow Capacity57.1 gal/min216 L/min
Swing Mechanism
Swing Speed10.8 rpm10.8 rpm
Swing Torque22422 lb ft30400.2 Nm
Weights
Operating Weight27680 lb12555.5 kg
Buckets
Reference Bucket Capacity0.6 yd30.5 m3
Minimum Bucket Capacity0.5 yd30.4 m3
Maximum Bucket Capacity1.1 yd30.8 m3
Hydraulic System
Pilot System - Maximum Flow4.5 gal/min4.5 gal/min
Pilot System - Maximum Pressure570 psi570 psi
Maximum Pressure - Travel4980 psi4980 psi
Maximum Pressure - Swing3340 psi3340 psi
Maximum Pressure - Implements4340 psi4340 psi
Main Implement System - Maximum Flow (2x)28 gal/min28 gal/min
Boom Cylinder - Bore4 in101.6 mm
Boom Cylinder - Stroke40 in1016 mm
Stick Cylinder - Bore4.3 in109.3 mm
Stick Cylinder - Stroke47 in1193.8 mm
Bucket Cylinder - Bore4 in101.6 mm
Bucket Cylinder - Stroke37 in939.8 mm
Service Refill Capacities
Cooling System4.1 gal15.6 L
Fuel Tank66 gal249.9 L
Final Drive - Each0.7 gal2.7 L
Hydraulic Tank25.9 gal98.1 L
Hydraulic System - Including Tank41.5 gal157.1 L
Engine Oil3.4 gal12.9 L
Swing Drive - Each0.8 gal2.9 L
Drive
Maximum Drawbar Pull20720 lb9398.5 kg
Travel Speed3.4 mph5.5 km/h
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Manufacturer-published specifications.