Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : 321B LCR ➔
The Caterpillar 321B LCR is a hydraulic excavator in Caterpillar's 321 series, designed with a reduced tail swing configuration for work in confined job sites. The LCR designation stands for Low/Reduced Counterweight Radius, allowing the machine to operate closer to obstacles while maintaining digging performance. As an excavator, the 321B LCR is used for trenching, site preparation, utility work, and general earthmoving. It typically features a crawler undercarriage, boom and stick assembly, and a bucket attachment system for material handling. The model is part of Caterpillar's compact-to-mid-size excavator lineup for construction and utility applications.
Dimensions
Caterpillar 321B LCR Excavator Dimensions specifications
Height
10.42 ft (3.18 m)
Length
29.00 ft (8.84 m)
Weight
52,911.00 lbs (24,000.06 kg)
Width
9.83 ft (3.00 m)
Drive
Caterpillar 321B LCR Excavator Drive specifications
Maximum Drawbar Pull
44,063.00 lbs (19,986.67 kg)
Maximum Travel Speed
3.10 mph (4.99 kph)
Engine
Caterpillar 321B LCR Excavator Engine specifications
Bore
4.10 in (10.41 cm)
Displacement
389.00 cu in (6,374.58 cu cm)
Engine Model
Cat 3066T
Gross Power
134.00 hp (99.93 kw)
Net Flywheel Power
129.00 hp (96.20 kw)
Net Power - Eec 80/1269
129.00 hp (96.20 kw)
Net Power - Iso 9249
129.00 hp (96.20 kw)
Net Power - Sae J1349
127.00 hp (94.71 kw)
Stroke
5.20 in (13.21 cm)
Hydraulic System
Caterpillar 321B 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)
49.00 gpm (185.47 lpm)
Maximum Pressure - Equipment
4974 psi
Maximum Pressure - Swing
3553 psi
Maximum Pressure - Travel
4974 psi
Pilot System - Maximum Flow
11.00 gpm (41.64 lpm)
Pilot System - Maximum Pressure
597 psi
Service Refill Capacities
Caterpillar 321B LCR Excavator Service Refill Capacities specifications
Cooling System
6.60 gal (24.98 l)
Engine Oil
5.40 gal (20.44 l)
Final Drive - Each
2.60 gal (9.84 l)
Fuel Tank Capacity
66.00 gal (249.81 l)
Hydraulic System - Including Tank
69.00 gal (261.17 l)
Swing Drive
1.60 gal (6.06 l)
Swing Mechanism
Caterpillar 321B LCR Excavator Swing Mechanism specifications
Swing Speed
10.7 rpm
Swing Torque
43,221.00 lbs ft (58,599.03 nm)
Track
Caterpillar 321B LCR Excavator Track specifications
Optional (1)
24.00 in (60.96 cm)
Optional (2)
28.00 in (71.12 cm)
Standard With Long Undercarriage
31.00 in (78.74 cm)
Weights
Caterpillar 321B LCR Excavator Weights specifications
Operating Weight - Standard Undercarriage
50,926.80 lbs (23,100.04 kg)
