The Caterpillar 311D LRR crawler excavator was introduced in 2008, with an operating weight of 27,558 lb (12.5 t), engine output of 80 hp (60 kW) and a bucket capacity of 0.5 yd³ (0.38 m³). Maximum digging depth is 18.3 ft (5.59 m), maximum horizontal reach is 26.6 ft (8.1 m) and it uses the C4.4 Acert engine.
Caterpillar Crawler Excavator Specifications
Crawler Excavator • Introduced 2008 • C4.4 Acert
Weight: 27,558 lb (12.5 t)Power: 80 hp (60 kW)Bucket: 0.5 yd³ (0.38 m³)Dig depth: 18.3 ft (5.59 m)
Key specifications
27,558 lb (12.5 t)Operating weight
80 hp (60 kW)Engine power
0.5 yd³ (0.38 m³)Bucket capacity
18.3 ft (5.59 m)Digging depth
26.6 ft (8.1 m)Horizontal reach
13,039 lbf (58 kN)Tear-out force
19.7 in (500 mm)Track width
2008Introduced
Useful excavator charts
Charts appear only when enough usable specifications are available.
Digging geometry
Dig depth
18.3 ft
Reach
26.6 ft
Transport dimensions
Length
22.7 ft
Width
8.2 ft
Height
9.1 ft
Model spec snapshot
Main numeric specifications for this excavator.
27,558 lbWeight
80 hpPower
0.5 yd³Bucket
13,039 lbfTear-out
How the Caterpillar 311D LRR compares
Comparison is against Caterpillar crawler excavators in the same broad operating-weight class where enough comparable data exists.
Engine power
80 hp
17% below avg
20th percentile
Bucket capacity
0.5 yd³
41% below avg
5th percentile
Digging depth
18.3 ft
In line with avg
48th percentile
Horizontal reach
26.6 ft
3% below avg
27th percentile
Engine power80 hp
Low 70 hpAverage 97 hpHigh 124 hp
About 17% below the peer average.
Bucket capacity0.5 yd³
Low 0.5 yd³Average 0.84 yd³High 1.28 yd³
About 41% below the peer average.
Digging depth18.3 ft
Low 12.4 ftAverage 18.3 ftHigh 21.6 ft
In line with the peer average.
Horizontal reach26.6 ft
Low 23.9 ftAverage 27.4 ftHigh 31.3 ft
About 3% below the peer average.
Tear-out force13,039 lbf
Low 12,535 lbfAverage 18,966 lbfHigh 25,835 lbf
About 31% below the peer average.
This model Peer average
Crawler excavator information
Manufacturer
Caterpillar
Model
311D LRR
Introduced
2008
Undercarriage
SL
Boom
MB
Operating specifications
Operating weight
27,558 lb (12.5 t)
Bucket capacity
0.5 yd³ (0.38 m³)
Bucket width
2.5 ft (0.75 m)
Maximum digging depth
18.3 ft (5.59 m)
Maximum horizontal reach
26.6 ft (8.1 m)
Tear-out force
13,039 lbf (58 kN)
Engine and emissions
Engine manufacturer
Caterpillar
Engine model
C4.4 Acert
Engine power
80 hp (60 kW)
Displacement
269 cu in (4.4 L)
Cylinder bore × stroke
4.13 × 5 in (105 × 127 mm)
Emission level
Tier 4 Final
Diesel particulate filter
No
Dimensions and transport
Transport length
22.7 ft (6.91 m)
Transport width
8.2 ft (2.5 m)
Transport height
9.1 ft (2.77 m)
Track width
19.7 in (500 mm)
Disclaimer: Specifications can vary by configuration, market and attachment. Verify critical dimensions, capacities and ratings against the official machine documentation and the Caterpillar USA website.
