Used Volvo 300 Excavator

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Here is a detailed introduction to the Volvo EC300 series crawler excavator, one of the most popular 30-tonne machines in the Volvo Construction Equipment lineup. This description focuses on the EC300E and EC300E Hybrid models, which represent the modern Volvo 300-class excavator.

Volvo EC300 Excavator: Power, Efficiency, and Precision in the 30-Tonne Class

The Volvo EC300 is a heavy-duty crawler excavator engineered for high productivity, exceptional fuel efficiency, and low total cost of ownership. Designed for demanding applications such as earthmoving, quarrying, road construction, and utility work, the EC300 combines robust Volvo engineering with advanced technology to deliver industry-leading performance. Available in standard and hybrid versions, this excavator sets a benchmark for the 30-tonne segment.

Key Highlights

Operating Weight: 28,900 – 32,000 kg (depending on configuration)
Engine: Volvo D8M, 4-stroke, turbocharged, water-cooled diesel
Net Power: 168 kW (228 hp) at 1,700 rpm
Bucket Capacity: 0.52 – 2.06 m³
Max Digging Reach: 10,370 mm
Max Digging Depth: 6,830 mm
Breakout Force (ISO): 192 kN
Fuel Efficiency: Up to 15% reduction in fuel consumption compared to previous models, with the Hybrid version offering an additional 15–17% fuel savings.

Engine and Powertrain

At the heart of the EC300E lies the Volvo D8M Tier 4 Final / Stage V compliant engine, a proven powerplant designed for heavy-duty cycles. It features:

High torque at low rpm, ensuring smooth, responsive operation and reduced noise.
Automatic engine idling and shutdown, which lowers fuel consumption during inactivity.
ECO mode that optimizes hydraulic flow and engine speed for lighter tasks without compromising performance.
Electronic fuel injection and advanced aftertreatment (DOC+DPF+SCR) for clean emissions and long service intervals.

The powertrain is matched with a rugged undercarriage, heavy-duty track chains, and a reinforced X-frame to withstand tough working conditions and offer excellent stability.

Hydraulic System

Volvo’s load-sensing, closed-center hydraulic system with variable-displacement piston pumps provides precise control and rapid cycle times. Key characteristics:

Summated flow sharing ensures all functions work simultaneously without power loss.
Priority to boom and arm movements for fast trenching and loading.
Regeneration circuit on boom and arm cylinders reuses hydraulic energy to reduce flow demand from pumps, further saving fuel.
Hydraulic quick-fit system (optional) allows fast attachment changes directly from the cab.

The system delivers outstanding digging forces and smooth combined movements, making it ideal for high-production excavation and fine grading.

EC300E Hybrid – Redefining Efficiency

Volvo pioneered the hydraulic hybrid excavator with the EC300E Hybrid, which recovers energy from the boom down motion. Instead of dissipating hydraulic energy as heat, the system stores it in a nitrogen-charged accumulator and releases it to assist the engine during subsequent boom raises. This innovative technology delivers:

Up to 17% additional fuel savings in digging applications.
No loss of performance – operators experience the same power and responsiveness as the standard model.
Reduced CO₂ emissions and extended engine life due to lower average load.

The hybrid system requires no special maintenance or operator training; it operates seamlessly in the background.

Operator Comfort and Safety

The EC300E cab is designed around the operator with industry-leading ergonomics and visibility:

ROPS/FOPS certified cab with pressurized, climate-controlled interior and excellent sound insulation (interior noise as low as 70 dB).
Adjustable seat with joystick consoles that move together, reducing fatigue during long shifts.
Large color monitor (8-inch) providing access to machine parameters, camera feeds, and service information.
Rearview and side cameras (optional) with integrated display for 360° visibility.
Volvo Smart View (optional) for enhanced operator awareness.
LED working lights as standard for safe night operation.

Safety features include anti-slip plates, handrails, emergency stop, and a travel alarm. The cab’s slim pillars and large glass area offer exceptional all-around visibility.

Technology and Connectivity

Volvo integrates intelligent solutions to boost productivity and uptime:

Volvo Co-Pilot – a tablet-based interface that offers on-board weighing (Dig Assist), 2D/3D machine control, and operator coaching.
Dig Assist – machine guidance system for accurate digging, grading, and mapping, directly visible on the Co-Pilot screen.
CareTrack – Volvo’s telematics system that allows remote monitoring of machine location, fuel consumption, service alerts, and operational data via a web portal or mobile app.
On-Board Weighing – helps prevent overloading and optimizes truck loading cycles.
Automatic Boom/Swing Damping – reduces oscillations for more precise load handling.

These features help contractors achieve higher accuracy, reduce rework, and manage fleets efficiently.

Maintenance and Serviceability

Volvo designs its excavators for maximum uptime with easy access to service points:

Ground-level access to engine oil, filters, fuel-water separator, and greasing points.
Wide-opening side doors and tilting cab (optional) for excellent access to major components.
Reversible hydraulic fan for automatic radiator cleaning, extending cooling system life.
Long service intervals: engine oil and filter changes at 500 hours, hydraulic oil at 4,000 hours (with oil sampling).
Grouped filter locations and color-coded wiring simplify daily checks.

The machine’s onboard diagnostic system alerts the operator to impending issues, and CareTrack transmits fault codes directly to the dealer for proactive service planning.

Attachments and Versatility

The EC300E is compatible with a wide range of Volvo-approved attachments to suit various applications:

General-purpose and heavy-duty buckets
Quick couplers (mechanical or hydraulic)
Hydraulic breakers
Grapples and thumbs
Rippers
Compaction plates
Tiltrotators

The hydraulic system can be configured with single- or double-acting auxiliary lines and high-flow options to power demanding attachments. Volvo’s attachment management system stores settings for up to 20 different tools.

Sustainability

Beyond the hybrid option, the EC300E reflects Volvo’s commitment to sustainability:

Fuel efficiency reduces overall carbon footprint.
The engine meets stringent Stage V emission standards with ultra-low particulate and NOx output.
Components are designed for long life and remanufacturing, reducing waste.
Volvo uses eco-friendly manufacturing processes and promotes the use of biodegradable hydraulic oils.

Typical Applications

Mass excavation – high breakout force and fast cycles for bulk earthmoving.
Quarry and aggregate – durable undercarriage and powerful hydraulics handle rock and abrasive materials.
Road and infrastructure – precision grading with Dig Assist and excellent reach for slope work.
Utility installation – stable platform for lifting and placing pipes and structures.
Demolition – suitable for mid-reach demolition with proper guarding and attachments.

Summary

The Volvo EC300E and EC300E Hybrid represent a perfect blend of power, intelligence, and economy. Whether you choose the proven efficiency of the standard model or the industry-leading fuel savings of the hybrid, you get a reliable, productive machine backed by Volvo’s global dealer network. With a comfortable cab, advanced technology, and low operating costs, the Volvo EC300 excavator is a premier choice for contractors seeking maximum return on investment in the 30-tonne class.

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Used Volvo 300 Excavator

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