311F L RR Hydraulic Excavator

Overview
Engine Model
Cat® C3.4B
Flywheel Power
70 hp
Operating Weight
28,660 lb
  • Exterior View
  • Interior View

Engine

Engine Model
Cat® C3.4B
Flywheel Power
70 hp
Bore
4 in
Stroke
4 in
Displacement
207 in3
Gross Power – SAE J1995
74 hp
Net Power – SAE J1349
70 hp
Note
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
Engine Model
C3.4B
Flywheel Power
70 HP
Bore
4 in
Stroke
4 in
Displacement
207 in³
Gross Power - SAE J1995
74 HP
Net Power - SAE J1349
70 HP
Note
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
Engine Power - ISO 9249
71 HP
Engine Power - ISO 14396
74 HP
Net Power - ISO 9249
71 HP

Weights

Operating Weight
28,660 lb
Operating Weight
28,660 lb

Drive

Maximum Drawbar Pull
25,696 lb
Maximum Travel Speed – High
3 mph
Maximum Travel Speed – Low
2 mph
Maximum Drawbar Pull
25,696 lb
Maximum Travel Speed - High
3 mile/h
Maximum Travel Speed - Low
2 mile/h

Hydraulic System

Maximum Pressure – Travel
5,076 psi
Maximum Pressure – Swing
3,336 psi
Pilot System – Maximum Flow
6 gal/min
Pilot System – Maximum Pressure
598 psi
Maximum Pressure – Equipment
4,424 psi
Main System - Maximum Flow - Total
125 × 2 L/min (33 × 2 gal/min)
Boom Cylinder – Bore
4 in
Boom Cylinder – Stroke
39 in
Stick Cylinder – Bore
4 in
Stick Cylinder – Stroke
47 in
Bucket Cylinder – Bore
4 in
Bucket Cylinder – Stroke
37 in
Maximum Pressure - Equipment
4,424 psi
Maximum Pressure - Swing
3,336 psi
Maximum Pressure - Travel
5,076 psi
Pilot System - Maximum Flow
6 gal/min
Pilot System - Maximum Pressure
598 psi
Boom Cylinder - Bore
4 in
Boom Cylinder - Stroke
39 in
Bucket Cylinder - Bore
4 in
Bucket Cylinder - Stroke
37 in
Stick Cylinder - Bore
4 in
Stick Cylinder - Stroke
47 in
Main System - Maximum Flow
125 × 2 L/min (33 × 2 gal/min)

Service Refill Capacities

Cooling System
2 gal
Final Drive (each)
1 gal
Hydraulic System (including tank)
42 gal
Hydraulic Tank
25 gal
Engine Oil (with filter)
2 gal
Fuel Tank Capacity
55 gal
Swing Drive (each)
1 gal
Cooling System
2 gal (US)
Swing Drive - Each
1 gal (US)
Final Drive - Each
1 gal (US)
Hydraulic System - Including Tank
42 gal (US)
Hydraulic Tank
25 gal (US)
Engine Oil - With Filter
2 gal (US)
Fuel Tank Capacity
55 gal (US)
Engine Oil
2 gal (US)
Swing Drive
1 gal (US)

Machine Weight

Operating Weight*
28,660 lb
Note
*4.3 m (14'1") reach boom, 2.8 m (9'2") stick, 700 mm (28") track shoes, without blade.
Note
*4.3 m (14'1") reach boom, 2.8 m (9'2") stick, 700 mm (28") track shoes, without blade.
Operating Weight*
28,660 lb

Sound

ISO 6395 – Spectator Noise
99 dB(A)
ISO 6396 - Operator Noise (Closed)
72 dB(A)
ISO 6395 - Spectator Noise
99 dB(A)

Swing

Swing Torque
22,791 ft·lbf
Swing Speed
10 r/min

Dimensions: Reach Boom – 4.3 m (14'1"); R2.8 m (9'2") Stick

Shipping Height
9 ft
Shipping Height at Boom Top
9 ft
Handrail Height
9 ft
Shipping Length – Long Undercarriage
23 ft
Shipping Length – Long Undercarriage with Blade
25 ft
Tail Swing Radius
6 ft
Length to Center of Rollers
9 ft
Track Length
11 ft
Ground Clearance
1 ft
Track Gauge
7 ft
Transport Width – 700 mm (28") Shoes
9 ft
Cab Height
9 ft

Working Ranges: Reach Boom – 4.3 m (14'1"); R2.8 m (9'2") Stick

Maximum Digging Depth
18 ft
Maximum Reach at Ground Level
27 ft
Maximum Cutting Height
27 ft
Maximum Loading Height
19 ft
Minimum Loading Height
4 ft
Maximum Depth Cut for 2440 mm (8'0") Level Bottom
16 ft
Maximum Vertical Wall Digging Depth
16 ft

Track

Number of Shoes (each side)
43 pieces
Number of Track Rollers (each side)
6 pieces
Number of Carrier Rollers (each side)
1 piece
Number of Carrier Rollers - Each Side
1 piece
Number of Shoes - Each Side
43 pieces
Number of Track Rollers - Each Side
6 pieces
Number of Track Rollers - Each Side
4 ft

Dimensions - Reach Boom - 4.3 m (14'1

Cab Height - With Top Guard
10 ft
Counterweight Clearance
3 ft
Cab Height
9 ft
Ground Clearance
1 ft
Handrail Height
9 ft
Length - Center of Rollers
9 ft
Shipping Height
9 ft
Shipping Height - Top of Boom
9 ft
Shipping Length - Long Undercarriage
23 ft
Shipping Length - Long Undercarriage with Blade
25 ft
Tail Swing Radius
6 ft
Track Gauge
7 ft
Track Length
11 ft
Transport Width - 700 mm (28 in) Shoes
9 ft

Working Ranges - Reach Boom - 4.3 m (14'1

Maximum Cutting Height
27 ft
Maximum Digging Depth
18 ft
Maximum Loading Height
19 ft
Maximum Reach - Ground Level
27 ft
Maximum Vertical Wall Digging Depth
16 ft
Minimum Loading Height
4 ft

Dimensions

Maximum Depth Cut for 2440 mm (8'0") Level Bottom
16 ft

Swing Mechanism

Swing Speed
10 r/min
Maximum Swing Torque
22,791 ft·lbf

Dimensions

Boom
4.3 m (14'1" ft)
Stick
R2.8 m (9'2")
Bucket
GD 0.53 m3 (0.69 yd3)
Shipping Height - Top of Cab
9 ft
Handrail Height
9 ft
Shipping Length
23 ft
Shipping Length - with Blade
25 ft
Tail Swing Radius
6 ft
Counterweight Clearance
3 ft
Ground Clearance
1 ft
Track Length
11 ft
Length to Center of Rollers
9 ft
Track Gauge
7 ft
Transport Width
9 ft

Working Ranges

Maximum Digging Depth
18 ft
Boom
4.3 m (14'1" ft)
Stick
R2.8 m (9'2")
Bucket
GD 0.53 m3 (0.69 yd3)
Maximum Reach at Ground Level
27 ft
Maximum Cutting Height
27 ft
Maximum Loading Height
19 ft
Minimum Loading Height
4 ft
Maximum Vertical Wall Digging Depth
16 ft
Bucket Digging Force (ISO)
20,007 lbf
Stick Digging Force (ISO)
11,690 lbf

MOVE MORE WITH LESS FUEL

  • The C3.4B U.S. EPA Tier 4 Final/EU Stage IV engine burns up to 14% less fuel than the model it replaces, the 311D.
  • The engine is equipped to run on up to B20 biodiesel fuel.
  • Two power modes, high power and eco mode, help operators manage fuel consumption.
  • Auto engine idle shutdown saves fuel, reduces emissions, and extends service intervals.

EXPAND YOUR CAPABILITIES

  • Reduced radius is ideal for work in space-restricted areas.
  • Site prep and finishing work are quick and easy with a wide range of Cat work tools.
  • Utility work is fast and flawless with a Cat bucket and compactor.
  • A coupler lets you swap between attachments in seconds without leaving the cab.
  • See the whole money-making attachment line for your machine at www.cat.com/attachments.

DESIGNED FOR OPERATORS

  • The roll-over protective structure (ROPS) certified cab is quiet and comfortable.
  • Automatic climate control helps maintain consistent cab temperature.
  • Joystick consoles and armrests are adjustable.
  • Seats are adjustable and feature air suspension and heated and cooled options.
  • The LCD monitor is easy to navigate and programmable in 42 languages.

BUILT TO PERFORM

  • Booms and sticks are built with baffle plates for enhanced service life.
  • Box-section structures with multi-plate fabrications, castings, and forgings are used in high-stress areas.
  • Greased track link between pins and bushings increases undercarriage life and reduces noise.

SAVE ON SERVICE AND MAINTENANCE

  • Many routine service and maintenance points can be accessed from ground level reducing the time taken to check and service your machine.
  • Service doors are designed to prevent debris entry and to make access to fluid taps and filters easy.
  • The cooling package is designed to prevent plugging and has wide clearance to help make blowing off debris easy.

ENSURING A SAFE JOB SITE

  • The side-view camera is offered to enhance visibility on the boom side of the machine to help make operators more effective and efficient.*

    * Regulation requirement for Europe only.

EFFICIENCY THROUGH TECHNOLOGY

  • Cat technology improves job site efficiency.
  • Product Link™ system connects owners to their equipment, providing access to machine data such as location, hours, fuel consumption, idle time, events, and diagnostic codes.

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