Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : 321C LCR ➔
The Caterpillar 321C LCR is a compact radius hydraulic excavator in Caterpillar's 321C series. Designed for work in confined job sites, the LCR configuration reduces tail swing for improved maneuverability near structures, roads, and utilities. It is commonly used in general excavation, trenching, site preparation, utility work, and material handling. The machine typically features a Caterpillar diesel engine, hydraulic boom and arm controls, and an enclosed operator cab or canopy depending on configuration. As an excavator, the 321C LCR is valued for balanced digging performance, stability, and access in restricted spaces.
Boom/Stick 1
Caterpillar 321C LCR Excavator Boom/Stick 1 specifications
Boom/Stick 1
Boom- 5680 mm / Stick Length - 2900 mm
Max Cutting Height
35.83 ft (10.92 m)
Max Digging Depth
21.72 ft (6.62 m)
Max Loading Height
26.19 ft (7.98 m)
Max Reach Along Ground
31.80 ft (9.69 m)
Max Vertical Wall Digging Depth
19.46 ft (5.93 m)
Shipping Height Of Unit
10.41 ft (3.17 m)
Shipping Length Of Unit
28.97 ft (8.83 m)
Dimensions
Caterpillar 321C LCR Excavator Dimensions specifications
Ground Clearance
1.56 ft (0.48 m)
Height
10.42 ft (3.18 m)
Height To Top Of Cab
10.41 ft (3.17 m)
Length
29.00 ft (8.84 m)
Length Of Track On Ground
28.97 ft (8.83 m)
Tail Swing Radius
5.50 ft (1.68 m)
Transport Width
10.44 ft (3.18 m)
Weight
52,911.00 lbs (24,000.06 kg)
Width
9.83 ft (3.00 m)
Width To Outside Of Tracks
10.44 ft (3.18 m)
Drive
Caterpillar 321C LCR Excavator Drive specifications
Maximum Drawbar Pull
44,063.00 lbs (19,986.67 kg)
Maximum Travel Speed
3.40 mph (5.47 kph)
Engine
Caterpillar 321C LCR Excavator Engine specifications
Bore
4.10 in (10.41 cm)
Displacement
389.00 cu in (6,374.58 cu cm)
Engine Make
Caterpillar
Engine Model
Cat 3066T ATAAC
Gross Power
147.60 hp (110.07 kw)
Net Flywheel Power
137.00 hp (102.16 kw)
Net Power
138.20 hp (103.06 kw)
Net Power - Eec 80/1269
138.00 hp (102.91 kw)
Net Power - Iso 9249
138.00 hp (102.91 kw)
Net Power - Sae J1349
137.00 hp (102.16 kw)
Power Measured @
1800 rpm
Stroke
5.20 in (13.21 cm)
Hydraulic System
Caterpillar 321C LCR Excavator Hydraulic System specifications
B1 Family Bucket Cylinder - Bore
4.80 in (12.19 cm)
B1 Family Bucket Cylinder - Stroke
41.00 in (104.14 cm)
Boom Cylinder - Bore
5.00 in (12.70 cm)
Boom Cylinder - Stroke
55.00 in (139.70 cm)
Main Implement System - Maximum Flow (2x)
54.00 gpm (204.39 lpm)
Maximum Pressure - Equipment
4974 psi
Maximum Pressure - Swing
3625 psi
Maximum Pressure - Travel
4974 psi
Pilot System - Maximum Flow
11.00 gpm (41.64 lpm)
Pilot System - Maximum Pressure
566 psi
Operational
Caterpillar 321C LCR Excavator Operational specifications
Cooling System Fluid Capacity
8.50 gal (32.17 l)
Engine Oil Capacity
8.00 gal (30.28 l)
Fuel Capacity
87.20 gal (330.05 l)
Hydraulic Pump Flow Capacity
54.20 gpm (205.15 lpm)
Hydraulic System Fluid Capacity
68.70 gal (260.03 l)
Operating Weight
50,155.20 lbs (22,750.04 kg)
Swing Drive Fluid Capacity
2.20 gal (8.33 l)
Service Refill Capacities
Caterpillar 321C LCR Excavator Service Refill Capacities specifications
Cooling System
8.50 gal (32.17 l)
Engine Oil
7.90 gal (29.90 l)
Final Drive - Each
2.60 gal (9.84 l)
Fuel Tank Capacity
87.00 gal (329.30 l)
Hydraulic System - Including Tank
69.00 gal (261.17 l)
Swing Drive
2.10 gal (7.95 l)
Swing Mechanism
Caterpillar 321C LCR Excavator Swing Mechanism specifications
Swing Speed
10.6 rpm
Swing Torque
45,582.00 lbs ft (61,800.08 nm)
Track
Caterpillar 321C LCR Excavator Track specifications
Ground Clearance - Fixed Gauge
18.70 in (47.50 cm)
Optional (1)
24.00 in (60.96 cm)
Optional (2)
28.00 in (71.12 cm)
Standard With Long Undercarriage
32.00 in (81.28 cm)
Undercarriage
Caterpillar 321C LCR Excavator Undercarriage specifications
Drawbar Pull
44,062.55 lbs (19,986.46 kg)
Max Travel Speed
3.42 mph (5.50 kph)
Shoe Size
31.50 in (80.01 cm)
Track Gauge
7.81 ft (2.38 m)
Weights
Caterpillar 321C LCR Excavator Weights specifications
Counterweight
13,448.20 lbs (6,100.01 kg)
Operating Weight - Minimum
50,416.00 lbs (22,868.34 kg)
Operating Weight - Standard Undercarriage
51,863.70 lbs (23,525.01 kg)
