The Caterpillar 320E L RR is a hydraulic excavator in Caterpillar's 20-ton class, designed for general earthmoving, trenching, and site preparation. The "L RR" designation refers to a long undercarriage with reduced tail swing, improving stability and maneuverability in confined work areas. The 320E series is commonly equipped with a fuel-efficient Cat diesel engine, advanced hydraulic controls, and a reinforced boom and stick for digging and lifting applications. It is used in construction, utility, and infrastructure projects where reach, balance, and controlled operation are important. The machine supports a range of buckets and attachments for versatile jobsite use.
Dimensions
Caterpillar 320E L RR Excavator Dimensions specifications
Ground Clearance
7.81 ft (2.38 m)
Height
10.33 ft (3.15 m)
Height To Top Of Cab
9.72 ft (2.96 m)
Length
29.33 ft (8.94 m)
Length Of Track On Ground
14.64 ft (4.46 m)
Removal Counterweight Clearance
3.29 ft (1.00 m)
Tail Swing Radius
6.83 ft (2.08 m)
Weight
56,440.00 lbs (25,600.79 kg)
Width
10.42 ft (3.18 m)
Drive
Caterpillar 320E L RR Excavator Drive specifications
Maximum Drawbar Pull
46,086.00 lbs (20,904.28 kg)
Maximum Travel Speed
3.50 mph (5.63 kph)
Engine
Caterpillar 320E L RR Excavator Engine specifications
Bore
4.10 in (10.41 cm)
Displacement
403.00 cu in (6,604.00 cu cm)
Engine Make
2236
Engine Model
C6.6 ACERT
Gross Power
164.00 hp (122.30 kw)
Gross Power - Sae J1995
164.00 hp (122.30 kw)
Net Flywheel Power
153.00 hp (114.09 kw)
Net Power
153.00 hp (114.09 kw)
Net Power - Sae J1349
153.00 hp (114.09 kw)
Stroke
5.00 in (12.70 cm)
Hydraulic System
Caterpillar 320E L RR Excavator Hydraulic System specifications
B1 Bucket Cylinder - Bore
4.7 lb/in
B1 Bucket Cylinder - Stroke
43.5 lb/in
Boom Cylinder - Bore
4.70 in (11.94 cm)
Boom Cylinder - Stroke
49.60 in (125.98 cm)
Main System - Maximum Flow - Total
113.10 gpm (428.08 lpm)
Maximum Pressure - Equipment - Heavy Lift
5511 psi
Maximum Pressure - Equipment - Normal
5076 psi
Maximum Pressure - Swing
3626 psi
Maximum Pressure - Travel
5076 psi
Pilot System - Maximum Flow
6.40 gpm (24.22 lpm)
Pilot System - Maximum Pressure
569 psi
Stick Cylinder - Bore
5.50 in (13.97 cm)
Stick Cylinder - Stroke
59.20 in (150.37 cm)
Operational
Caterpillar 320E L RR Excavator Operational specifications
Cooling System Fluid Capacity
7.90 gal (29.90 l)
Engine Oil Capacity
6.10 gal (23.09 l)
Fuel Capacity
76.60 gal (289.93 l)
Hydraulic System Fluid Capacity
54.20 gal (205.15 l)
Operating Weight
52,250.00 lbs (23,700.23 kg)
Service Refill Capacities
Caterpillar 320E L RR Excavator Service Refill Capacities specifications
Cooling System
7.90 gal (29.90 l)
Engine Oil - With Filter
6.10 gal (23.09 l)
Final Drive - Each
2.10 gal (7.95 l)
Fuel Tank Capacity
76.60 gal (289.93 l)
Hydraulic System - Including Tank
54.20 gal (205.15 l)
Hydraulic Tank
30.40 gal (115.06 l)
Swing Drive
2.10 gal (7.95 l)
Sound Performance
Caterpillar 320E L RR Excavator Sound Performance specifications
Operator Noise (Closed) - Iso 6396
71 dB(A)
Spectator Noise - Iso 6395
103 dB(A)
Standards
Caterpillar 320E L RR Excavator Standards specifications
Brakes
ISO 10265 2008
Cab - Rops
ISO 12117-2 2008
Cab/Fogs
ISO 10262 1998
Swing Mechanism
Caterpillar 320E L RR Excavator Swing Mechanism specifications
Swing Speed
11.2 rpm
Swing Torque
45,581.00 lbs ft (61,798.72 nm)
Track
Caterpillar 320E L RR Excavator Track specifications
Number Of Carrier Rollers - Each Side - Long Undercarriage
2 pieces
Number Of Shoes - Each Side - Long Undercarriage
49 pieces
Number Of Track Rollers - Each Side - Long Undercarriage
8 pieces
Undercarriage
Caterpillar 320E L RR Excavator Undercarriage specifications
Drawbar Pull
46,086.00 lbs (20,904.28 kg)
Max Travel Speed
3.50 mph (5.63 kph)
Number Of Carrier Rollers Per Side
2
Number Of Shoes Per Side
49
Number Of Track Rollers Per Side
8
Weights
Caterpillar 320E L RR Excavator Weights specifications
Maximum Operating Weight**
56,440.00 lbs (25,600.79 kg)
Maximum Weight
56,440.00 lbs (25,600.79 kg)
Minimum Operating Weight*
52,250.00 lbs (23,700.23 kg)
Minimum Weight
52,250.00 lbs (23,700.23 kg)
Operating Weight
56,440.00 lbs (25,600.79 kg)
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