Used CAT 320 GC Excavator for Construction and Material Loading

Customize your earthmoving fleet for the specific tasks at hand. The used CAT 320 GC excavator features a tracked platform ideal for foundation excavation, site preparation, trenching, and loading loose materials.

The photos provided display CAT 320 GC identification markings, a toothed bucket, steel tracks, an enclosed cabin, access handrails, and work lights. A front cabin guard is also visible in the main image. Inside, the machine is equipped with joystick controls, travel pedals, and a seat with armrests.

Longmai Machinery assists contractors, equipment dealers, and rental companies in sourcing used construction machinery. Buyers can inquire about the selected machine's maintenance records, inspection requirements, attachments, and delivery terms.

A Practical Size for Mixed Site Operations

Many construction projects require an excavator that can handle multiple tasks within the same shift. The CAT 320 GC belongs to the 20-ton class, making it a suitable choice for general earthworks where both digging reach and loading capacity are important.

For instance, it can excavate a foundation area, load excess soil, and then return for backfilling. Meanwhile, its tracked undercarriage allows it to traverse appropriately prepared unpaved work areas.

Potential applications include:

• Foundations for commercial buildings

• Trenches for drainage and water supply lines

• Road widening and culvert installation

• Development of industrial yards

• Loading of soil and aggregates

• Land grading and property development

Machine selection should take into account ground conditions, access space, material density, and daily production requirements.

Cat Engine and Controlled Hydraulic Movement

Published specifications for the CAT 320 GC indicate the use of a Cat C4.4 engine. However, engine ratings vary by market and production period, so the specific installed version needs to be confirmed.

The earlier reference configuration below specifies a net engine power of 90 kW paired with a maximum hydraulic flow rate of 442 L/min. Its listed working pressure is 35 MPa.

Caterpillar's equipment listings also describe selectable power modes and automatic engine speed control. These features allow engine performance to be adjusted to meet changing operational demands. During inspection, verify the available settings and test their responsiveness.

Technical Specifications for Comparison

The table below uses one previously published configuration for the CAT 320 GC. These figures are for reference only and do not represent verified measurements or ratings for the actual machine pictured.

The final quotation should specify the serial number, engine rating, bucket, track shoes, and actual machine configuration. The year of manufacture and recorded operating hours also require separate verification.

Bucket Selection for Excavation and Truck Loading

The bucket in the photo is equipped with teeth and shows visible wear on its exterior. Buyers should assess its condition along with the machine's hydraulic performance.

The appropriate bucket helps balance each load with the material being handled. Loose soil, wet clay, and dense gravel all have different weights. Therefore, capacity alone should not be the sole factor in attachment selection.

Before purchase, confirm the following:

• Bucket width, capacity, and whether it is included in the order

• Wear on teeth, adapters, and cutting edges

• Condition of pins and bushings

• Linkage movement and cylinder response

• Any previous repairs to the bucket

For power attachments, check the hydraulic circuit and tool requirements first. The presence of piping does not guarantee compatibility with all breakers or grapples.

Cabin Features for Daily Operation

The enclosed cabin provides a protected workspace for the operator. The photos show armrests, manual controls, travel pedals, and a display area.

During a machine inspection, test the seat adjustment, control lockout, display, horn, lights, and windshield wipers. In addition, check door operation, glass condition, ventilation, and any installed air conditioning.

The front guard should be inspected for secure mounting and damage. Its presence alone does not guarantee a certified level of protection.

Assess the Undercarriage and Digging Structure

Steel tracks provide the machine's ground contact, so their condition affects both operation and future maintenance costs. The photos show surface rust on parts of the track shoes.

An inspection should assess the track chains, rollers, sprockets, idlers, and adjusters. Next, test travel in both directions and listen for unusual noises from the final drive.

The boom, stick, cylinder mounts, and swing bearing also deserve close attention. Request details of any structural repairs and check for excessive joint movement.

Our guide to buying used machinery provides additional points for comparing equipment.

Supply Support for Dealers and Contractors

Longmai Machinery assists business buyers with machine sourcing, inspection coordination, export documentation, and shipping arrangements. Sourcing of spare parts and preparation work can also be discussed.

For fleet comparisons, buyers may review the used CAT 320D2 excavator alongside the 320 GC. Compare each unit's condition, configuration, and expected workload.

Before shipping, confirm the measured dimensions, transport weight, included attachments, loading responsibilities, and destination requirements. Thus, the order can include a clear preparation and delivery plan.

Request a Quotation for the CAT 320 GC

Contact Longmai Machinery for availability, machine records, recent photos, operational videos, inspection options, and pricing. Please provide your destination port, quantity, primary tasks, and preferred attachments.

Caterpillar manufactures the CAT 320 GC. Longmai Machinery is an independent supplier of used construction equipment.