Used CAT 306E2 Excavator for Construction Projects

The Used CAT 306E2 Excavator is a practical 5.8-ton crawler excavator designed for contractors who need compact dimensions, reliable digging performance, and flexible use on different jobsites.

With a 0.25 m³ bucket, Cat C2.4 diesel engine, steel crawler undercarriage, and front dozer blade, this machine is well suited to trenching, foundation excavation, landscaping, road construction, utility work, and general earthmoving.

At the same time, its compact transport size makes it easier to move between projects than larger excavators. Therefore, it is a practical option for construction companies, rental fleets, equipment dealers, and overseas buyers looking for a used medium-size mini excavator.

Compact Size with Practical Digging Capacity

The CAT 306E2 has an operating weight of approximately 5,800 kg. This places it in a useful class between smaller mini excavators and larger construction excavators.

Its overall dimensions are approximately 5,785 mm long, 1,950 mm wide, and 2,540 mm high. As a result, the machine can work in sites where access and maneuverability are important.

However, compact size does not mean limited performance. The 306E2 provides a maximum digging depth of about 3,870 mm and a maximum excavation radius of 6,090 mm. These dimensions allow the operator to handle drainage trenches, foundations, utility lines, landscaping work, and general excavation with fewer machine movements. Caterpillar's archived specifications list the same 3,870 mm maximum depth and 6,090 mm maximum reach.

CAT 306E2 Technical Specifications

*The supplied machine specification lists 2.8–4.8 km/h. Caterpillar's archived specifications for some 306E2 configurations list 2.8/4.3 km/h, so final configuration should be confirmed before order.

Cat C2.4 Diesel Engine

The CAT 306E2 uses a Cat C2.4 four-cylinder diesel engine with a displacement of 2.4 liters.

The compact diesel power system is designed to provide steady output for excavation, lifting, grading, and loading. In addition, water cooling helps maintain a stable working temperature during longer operating periods.

The engine is also arranged behind large service panels. This makes routine checks and maintenance more convenient because key components can be reached without complex disassembly.

Strong Hydraulic Digging Performance

Digging performance is a key advantage of this used CAT excavator.

The bucket digging force reaches approximately 39 kN, while stick digging force is around 28 kN. Caterpillar's archived technical data confirms these figures for the 306E2.

Therefore, the machine can handle compacted soil, clay, gravel, and mixed construction material efficiently.

The hydraulic system also provides smooth boom, stick, bucket, and swing movements. This makes the excavator useful not only for heavy digging but also for tasks that require better control, such as pipe installation, trench finishing, and landscaping.

0.25 m³ Bucket for Versatile Jobs

The standard bucket capacity is 0.25 m³, which Caterpillar also lists for the 306E2.

This bucket size provides a good balance between digging volume and machine stability. It works well for soil removal, trenching, loading, backfilling, and general site preparation.

Depending on the hydraulic configuration, other compatible attachments may also be fitted, such as narrow trench buckets, grading buckets, hydraulic breakers, grabs, or other construction tools.

Stable Steel Crawler Undercarriage

The steel crawler system provides a broad contact area with the ground. Therefore, the machine remains stable when working on soil, gravel, unfinished roads, and uneven construction sites.

Crawler travel also helps the excavator move across softer ground more effectively than wheeled equipment.

In addition, the front dozer blade can be used for backfilling, surface leveling, site cleanup, and added support during excavation.

Comfortable Enclosed Cab

The enclosed cab has large glass panels around the operator area, giving good visibility toward the boom, bucket, tracks, and surrounding site.

Joystick controls are positioned close to the operator seat for simple hydraulic control. The cab layout is straightforward, which helps operators become familiar with the machine quickly.

For long working shifts, the enclosed design also provides more protection from dust, wind, and outdoor conditions.

Applications

The Used CAT 306E2 Excavator can be used for residential and commercial construction, foundation digging, drainage trenches, road maintenance, utility installation, landscaping, farm work, municipal projects, site preparation, loading, backfilling, and general earthmoving.

Its combination of compact dimensions and nearly 6-ton operating weight makes it particularly suitable for contractors who need one excavator for several types of daily work.

Used Equipment Inspection and Supply

Before shipment, used excavators should be checked carefully. Key inspection points include engine starting and operation, hydraulic pressure, boom and stick movement, bucket pins, cylinder leakage, swing function, travel motors, track wear, rollers, sprockets, dozer blade, cab controls, and electrical systems.

Machine year, serial number, operating hours, attachments, engine information, and final configuration should also be confirmed for the actual unit before purchase.

FAQ

What is the operating weight of the CAT 306E2?

The listed operating weight is approximately 5,800 kg, making it a compact six-ton-class crawler excavator.

What bucket size does the CAT 306E2 use?

The standard bucket capacity is approximately 0.25 m³.

How deep can the CAT 306E2 dig?

Maximum digging depth is approximately 3,870 mm.

What engine does the CAT 306E2 use?

It uses a Cat C2.4 diesel engine. Caterpillar lists C2.4 direct-injection turbo engine configurations for the 306E2.

What is the digging force?

Bucket digging force is approximately 39 kN, while stick digging force is around 28 kN.

Does this excavator have a dozer blade?

Yes. The machine shown is equipped with a front dozer blade for grading, backfilling, cleanup, and added stability.

Can the CAT 306E2 use other attachments?

Yes. Compatible attachments may be installed according to the hydraulic circuit, coupler, attachment weight, and actual machine configuration.

Is the CAT 306E2 suitable for export?

Its compact size and practical working range make it suitable for contractors, machinery dealers, rental fleets, and international used-equipment buyers.