Overview
321B LCR Hydraulic Excavator
Specifications
| Engine Model | Cat 3066T |
| Net Flywheel Power | — |
| Operating Weight - Standard Undercarriage | — |
Benefits & Features
Introduction
The increasing use of hydraulic excavators in urban construction has created a demand for excavators that can work in tighter quarters, thus the emergence of "compact radius" designs. These excavators are completely redesigned to rotate with little to none of the counterweight protruding over the tracks.
Productivity
The 321B LCR has been developed as a compact radius machine that offers comparable productivity of a standard 20-metric ton class excavator. The machine can be used for specific applications that require high maneuverability in confined spaces, but it also has the ability to accommodate a variety of applications.
Swing Radius
The Caterpillar 321B LCR has a tail swing radius of only 1600 mm (5'3"), which allows swing operation with confidence that the tail of the machine will be working within the track width. The minimum front swing radius is 1850mm (6'1") and the 180 degree swing radius is 3450 mm (11'4").
Specifications
| Engine Model | Cat 3066T |
| Net Flywheel Power | — |
| Net Power - ISO 9249 | — |
| Bore | — |
| Stroke | — |
| Displacement | — |
| Gross Power | — |
| Net Power - EEC 80/1269 | — |
| Net Power - SAE J1349 | — |
| Operating Weight - Standard Undercarriage | — |
| Fuel Tank Capacity | — |
| Cooling System | — |
| Engine Oil | — |
| Swing Drive | — |
| Final Drive - Each | — |
| Hydraulic System - Including Tank | — |
| Swing Speed | — |
| Swing Torque | — |
| Maximum Drawbar Pull | — |
| Maximum Travel Speed | — |
| Main Implement System - Maximum Flow (2x) | — |
| Maximum Pressure - Equipment | — |
| Maximum Pressure - Travel | — |
| Maximum Pressure - Swing | — |
| Pilot System - Maximum Flow | — |
| Pilot System - Maximum Pressure | — |
| Boom Cylinder - Bore | — |
| Boom Cylinder - Stroke | — |
| B1 Family Bucket Cylinder - Bore | — |
| B1 Family Bucket Cylinder - Stroke | — |
| Standard with Long Undercarriage | — |
| Optional (1) | — |
| Optional (2) | — |
Benefits & Features
Introduction
The increasing use of hydraulic excavators in urban construction has created a demand for excavators that can work in tighter quarters, thus the emergence of "compact radius" designs. These excavators are completely redesigned to rotate with little to none of the counterweight protruding over the tracks.
Productivity
The 321B LCR has been developed as a compact radius machine that offers comparable productivity of a standard 20-metric ton class excavator. The machine can be used for specific applications that require high maneuverability in confined spaces, but it also has the ability to accommodate a variety of applications.
Swing Radius
The Caterpillar 321B LCR has a tail swing radius of only 1600 mm (5'3"), which allows swing operation with confidence that the tail of the machine will be working within the track width. The minimum front swing radius is 1850mm (6'1") and the 180 degree swing radius is 3450 mm (11'4").
Working Envelope
The 321B LCR is equipped with a 5.7 m (18'8") boom and a 2.9 m (9'6") stick, with the "B" family bucket linkage. The boom cylinder boss in the boom center has been relocated, which results in an increase of boom up and down movement and increases in maximum digging height and depth.
Serviceability/Maintenance
On compact radius machines, accessibility for maintenance and service items is generally a trade-off for its small tail swing radius. The Cat 321B LCR was designed with full consideration given to ground-level maintenance when possible.
Ground Level Maintenance
The Cat 321B LCR embodies the ground-level maintenance concept to the maximum. Fuel line water separator and battery checks, radiator coolant level check, pilot filter and drain filter replacement can be performed from the ground.
Front Linkage Service Intervals
The front linkage (except the bucket linkage) utilizes the same linkage as the 320C L, where greasing intervals has been extended from 50 hours to 1000 hours. The bucket linkage greasing intervals have been extended from 50 hours to 100 hours.
Data not available.
Standard Equipment
- Electrical
- Alternator, 50A
- CAT Batteries
- Horn, Signaling/Warning
- Operator Environment
- Cab with sliding door
- Retractable Front Windshield
- Static seat with two way adjustable (front-rear) and seat belt
- Stationary skylight, polycarbonate, with removable sunshade
- Joystick Type Controls
- Windshield Wiper with Washer, Upper
- Air Conditioner
- Monitor with Guages
- Light, Interior
- Coat Hook
- Ashtray
- Literature Holder
- Hydraulic Neutralizer Lever for All Controls
- Travel Control Levers
- Floor Mat
- AM/FM Radio
- Power Train
- Cat 3066 T Diesel engine
- Muffler
- Two-speed Travel with Manual shift
- Water Separator in Fuel Line
- Power Mode Selector
- Work Mode Selector
- Straight Line Travel
- Undercarriage
- Hydraulic Track Adjusters
- Idler Track Guiding Guards
- Track-type Undercarriage with Grease Lubricated Seals
- Other Standard Equipment
- Automatic Swing Brake
- Auxiliary Hydraulic Valve
- Bucket Linkage, B-Family
- Door Locks and Cap Locks with One-key Security System
- Mirrors
Optional Equipment
- Mandatory in Certain Countries
- Alarm, Travel
- Electrical
- Lights, Right Side Boom
- Power Train
- Cold Weather Starting Aid
- Undercarriage
- Track, 600 mm (24") Triple Grouser Shoes -- Replaces 800 mm (32") T.G. shoes
- Track, 700 mm (28") Triple Grouser Shoes -- Replaces 800 mm (32") T.G. shoes
- Other Optional Equipment
- Auxiliary Hydraulic Arrangement Options
Related Products
Mobile Scrap & Demolition Shears
Cat® Scrap and Demolition Shears are industry leaders in steel processing. Power and performance in a reliable package, backed by the best dealer network in the world.
| Model | Cutting Circuit - Maximum Relief Pressure | ||
|---|---|---|---|
| S320B | — | — | — |