- Category: Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 321D LCR ➔
The Caterpillar 321D LCR is a hydraulic excavator in Caterpillar's compact radius lineup, designed for work in confined job sites where tail swing clearance is limited. It is commonly used in utility, urban construction, roadwork, and general excavation applications. The 321D LCR features a reduced tail swing design, hydraulic performance suited for digging and lifting, and an operator cab configured for visibility and control. As part of the Caterpillar excavator range, it is built for earthmoving, trenching, site preparation, and material handling tasks. The model is recognized for balancing maneuverability, reach, and digging capability in restricted spaces.
Boom/Stick Excavator Option 1
| Max Cutting Height | 36.10 ft (11.00 m)
|
| Max Digging Depth | 22.00 ft (6.71 m)
|
| Max Loading Height | 26.00 ft (7.92 m)
|
| Max Reach Along Ground | 32.10 ft (9.78 m)
|
| Max Vertical Wall Digging Depth | 19.40 ft (5.91 m)
|
| Shipping Height of Unit | 10.00 ft (3.05 m)
|
| Shipping Length of Unit | 29.20 ft (8.90 m)
|
Boom/Stick Excavator Option 2
| Max Cutting Height | 35.20 ft (10.73 m)
|
| Max Digging Depth | 20.70 ft (6.31 m)
|
| Max Loading Height | 25.00 ft (7.62 m)
|
| Max Reach Along Ground | 30.90 ft (9.42 m)
|
| Max Vertical Wall Digging Depth | 18.00 ft (5.49 m)
|
| Shipping Height of Unit | 10.00 ft (3.05 m)
|
| Shipping Length of Unit | 29.20 ft (8.90 m)
|
Bucket
| Maximum Bucket Capacity | 2.10 cu yd (1.61 cu m)
|
| Reference Bucket Capacity | 1.40 cu yd (1.07 cu m)
|
Dimensions
| Ground Clearance | 1.50 ft (0.46 m)
|
| Height - Top of Cab | 9.80 ft (2.99 m)
|
| Length of Track on Ground | 12.00 ft (3.66 m)
|
| Removal Counterweight Clearance | 1.50 ft (0.46 m)
|
| Shipping Height | 9.90 ft (3.02 m)
|
| Tail Swing Radius | 5.50 ft (1.68 m)
|
| Transport Width | 10.50 ft (3.20 m)
|
| Width to Outside of Tracks | 9.80 ft (2.99 m)
|
DRIVE SYSTEM
| Maximum Drawbar Pull | 46,311.00 lbs (21,006.34 kg)
|
Engine
| Bore | 4.10 in (10.41 cm)
|
| Displacement | 389.00 cu in (6,374.58 cu cm)
|
| Engine Model | Cat C6.4 ACERT
|
| Net Power | 148.00 hp (110.37 kw)
|
| Net Power - EEC 80/1269 | 148.00 hp (110.37 kw)
|
| Net Power - ISO 9249 | 148.00 hp (110.37 kw)
|
| Net Power - SAE J1349 | 148.00 hp (110.37 kw)
|
| Stroke | 5.20 in (13.21 cm)
|
Hydraulic System
| Boom Cylinder - Bore | 4.70 in (11.94 cm)
|
| Boom Cylinder - Stroke | 49.60 in (125.98 cm)
|
| Main Implement System - Maximum Flow (2x) | 54.00 gpm (204.39 lpm)
|
| Maximum Pressure - Equipment | 5076 psi
|
| Maximum Pressure - Swing | 3626 psi
|
| Maximum Pressure - Travel | 5076 psi
|
Operating Specifications
| Alternator Supplied Amperage | 50 amps
|
| Cooling System Fluid Capacity | 6.60 gal (24.98 l)
|
| Engine Oil Capacity | 8.00 gal (30.28 l)
|
| Fuel Capacity | 87.00 gal (329.30 l)
|
| Hydraulic Pump Flow Capacity | 54.00 gpm (204.39 lpm)
|
| Hydraulic System Fluid Capacity | 55.00 gal (208.18 l)
|
| Hydraulic System Relief Valve Pressure | 5076 psi
|
| Operating Voltage | 24 volts
|
| Operating Weight | 51,875.00 lbs (23,530.13 kg)
|
| Swing Drive Fluid Capacity | 2.10 gal (7.95 l)
|
Service Refill Capacities
| Cooling System | 6.60 gal (24.98 l)
|
| Engine Oil | 8.00 gal (30.28 l)
|
| Final Drive - Each | 2.10 gal (7.95 l)
|
| Fuel Tank Capacity | 87.00 gal (329.30 l)
|
| Hydraulic System - Including Tank | 55.00 gal (208.18 l)
|
| Hydraulic Tank | 32.00 gal (121.12 l)
|
| Swing Drive | 2.10 gal (7.95 l)
|
Standards
| Brakes | SAE J1026 APR90
|
| Cab/FOGS | SAE J1356 FEB88
|
Swing Mechanism
Track
| Number of Carrier Rollers - Each Side - Long Undercarriage | 2
|
| Number of Shoes - Each Side - Long Undercarriage | 49
|
| Number of Track Rollers - Each Side - Long Undercarriage | 8
|
Undercarriage
| Drawbar Pull | 46,311.00 lbs (21,006.34 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
|
| Shoe Size | 24.00 in (60.96 cm)
|
Weights
| Operating Weight | 51,875.00 lbs (23,530.13 kg)
|
| Operating Weight - Long Undercarriage | 51,875.00 lbs (23,530.13 kg)
|
| Operating Weight - Standard Undercarriage | 51,875.00 lbs (23,530.13 kg)
|
