Used CAT 345 GC Excavator for Large Construction Projects

The used CAT 345 GC excavator is designed for buyers who need higher digging capacity, large bucket volume, and stable performance for demanding construction work.

With an operating weight of about 42 tons, the CAT 345 GC sits above common 30-ton machines. Therefore, it is well suited to bulk excavation, quarry work, large foundations, highway projects, mining support, and heavy material loading.

For contractors, machinery dealers, and fleet buyers, Longmai supplies used construction equipment with machine inspection, export preparation, and international delivery support.

CAT 345 GC Main Specifications

The following specifications refer to a common CAT 345 GC configuration with a 6.9 m reach boom, 2.9 m stick, and 2.41 m³ HD bucket. Actual used-machine specifications can vary by serial number, attachment, track configuration, and regional version.

More Capacity for High-Volume Earthmoving

For large projects, machine output is often more important than simply choosing the lowest operating weight.

The CAT 345 GC combines a 42,200 kg reference operating weight with a 2.41 m³ HD bucket. This allows the excavator to move larger volumes of soil during each cycle than many medium-size machines.

As a result, it can be a practical choice for projects where trucks must be loaded continuously or where large amounts of material must be removed within a limited schedule.

Typical work includes bulk excavation, quarry loading, road cuts, foundation preparation, and large-scale land development.

Cat C9.3 Power for Demanding Work

The CAT 345 GC uses a 9.3-liter Cat engine with a reference net output of approximately 258 kW.

The engine works with a hydraulic system capable of delivering up to 630 L/min, while equipment pressure reaches approximately 35 MPa.

This combination gives the machine the power needed for deep digging and repeated loading cycles.

In addition, Caterpillar designed the 345 GC with different power modes so engine and hydraulic output can better match working demand. This helps reduce unnecessary fuel use during lighter work.

Designed for Standard Production Work

The “GC” concept focuses on practical productivity, easy operation, and controlled ownership cost.

According to Caterpillar, the 345 GC can deliver up to 25% better fuel efficiency than the older 349D2 Tier 3 in comparable applications. Actual fuel consumption, however, depends on load, operator behavior, soil condition, attachments, and machine condition.

For used-equipment buyers, this makes the model attractive for projects that require steady daily output rather than highly specialized machine functions.

Wide Working Range for Large Sites

With the referenced boom and stick configuration, the CAT 345 GC reaches approximately:

• 7.20 m maximum digging depth
• 11.29 m maximum reach at ground level
• 10.54 m maximum cutting height
• 7.21 m maximum loading height

Bucket digging force reaches about 235 kN.

These figures give contractors useful flexibility when digging deep pits, loading trucks, opening large trenches, or working across wider excavation areas.

However, the actual working range of each used machine should always be confirmed from its installed boom, stick, and bucket.

Suitable for Tough Working Environments

Large excavators are often exported to areas where heat, dust, and long working hours are common.

Caterpillar states that the 345 GC can operate at elevations up to approximately 3,300 m, while the standard high-ambient specification supports temperatures up to 52°C.

This makes the model relevant for infrastructure, mining, and earthmoving projects across warm and demanding regions.

Longmai also states that its construction equipment supply focuses on markets such as Africa, Southeast Asia, and South America, where machines may face high temperatures and dusty working conditions.

Applications for the CAT 345 GC

The machine can support a broad range of commercial applications:

• Large foundation excavation
• Highway and road construction
• Quarry loading
• Mining support
• Industrial site preparation
• Pipeline construction
• Bulk earthmoving
• River and drainage projects
• Land development
• Heavy truck loading

For dealers, the 345 GC also fills an important position between common medium excavators and much larger mining-class machines.

What Professional Buyers Should Verify

Before buying a used CAT 345 GC, procurement teams should review more than the paint condition or meter hours.

Important items include engine start-up, hydraulic pressure, pump response, cylinders, swing bearing, final drives, travel motors, boom and stick structure, bucket linkage, and undercarriage wear.

Buyers should also confirm:

• Serial number
• Production year
• Operating hours
• Boom and stick configuration
• Bucket capacity
• Track shoe width
• Engine condition
• Hydraulic leakage
• Previous repairs
• Available attachments

Actual photos and operating videos can make remote evaluation easier before arranging an inspection or shipment.

Used Excavator Supply from Longmai

Hefei Longmai Construction Machinery Trading Co., Ltd. specializes in the global trade of used excavators, loaders, bulldozers, motor graders, and dump trucks.

The company states that its service includes equipment quality inspection, customs documentation, international shipping, spare-parts support, and remote maintenance guidance. It also offers equipment modifications such as GPS monitoring and wear-resistant components according to project needs.

For fleet buyers and machinery dealers, this provides one sourcing channel for both individual excavators and mixed construction-equipment orders.

Request a CAT 345 GC Quote

If you are searching for a used CAT 345 GC excavator for sale, send us your destination country, required quantity, target production year, preferred operating hours, and expected machine condition.

We can provide current machine photos, operating videos, specification details, inspection information, and shipping options.

Contact Longmai to check available CAT 345 GC excavators for construction projects, fleet expansion, rental operations, or machinery resale.