Used Caterpillar 320D2 Excavator

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CATERPILLAR 320D2 Hydraulic Excavator Detailed Introduction

The Caterpillar 320D2 is a class-leading 20-ton medium-sized hydraulic excavator developed by Caterpillar Inc. as an upgraded iteration of the classic 320D series. Tailored for high-intensity, harsh working conditions across global emerging markets, it balances outstanding operating efficiency, low lifecycle cost, extreme durability and operator comfort, making it one of the best-selling excavator models in the global construction equipment market.

1. Core Specifications

Parameter	Details
Operating Weight	19,800 kg – 21,700 kg (varies by configuration: standard arm/long arm, track type, attachment setup)
Engine Model	Cat C7.1 inline 6-cylinder turbocharged intercooled diesel engine
Net Rated Power	104 kW (140 hp) @ 2,000 rpm
Bucket Capacity Range	0.8 m³ – 1.2 m³
Standard Bucket Breakout Force	149 kN
Standard Arm Digging Force	103 kN
Max Digging Depth (standard arm)	6,720 mm; (long arm option) 7,400 mm
Max Dumping Height (standard arm)	6,190 mm
Travel Speed	3.5 km/h (low) / 5.7 km/h (high)
Swing Speed	11.5 rpm
Gradeability	35°

2. Key Performance Advantages

2.1 Optimized Powertrain for High Adaptability

The Cat C7.1 engine adopts Caterpillar’s proprietary fuel injection optimization technology, with a 3-stage high-efficiency fuel filtration system, which can adapt to low-quality fuel with high sulfur content common in emerging markets, reducing the risk of fuel system failure. It supports stable operation in extreme environments:

Normal operation at ambient temperatures up to 45℃ without power derating
No power reduction at altitudes up to 3,000 m above sea level
7%~10% lower fuel consumption compared with the older 320D model, thanks to the 4-mode work setting (Power Mode, Economy Mode, Lifting Mode, Fine Operation Mode) that matches power output to actual working conditions.

2.2 High-Efficiency Hydraulic System

The 320D2 is equipped with Caterpillar’s load-sensing hydraulic system with independent flow distribution technology:

Smooth compound operation (simultaneous boom lifting, swing and bucket digging) without lag, improving operation efficiency by 8% in earthmoving scenarios
Long-life hydraulic oil filter with a replacement cycle of 5,000 operating hours, cutting daily maintenance costs
Built-in overload pressure relief protection, effectively extending the service life of hydraulic components.

2.3 Operator Safety & Comfort

The cab meets global ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) safety standards:

Noise level inside the cab is as low as 78 dB(A), with fully sealed dustproof and vibration isolation design
Adjustable air-suspension seat with optional heating function, ergonomic joystick with low operating force, reducing fatigue during long hours of work
4-inch color LCD monitor displays real-time operating data, fault warnings and maintenance reminders, with optional rear-view camera to eliminate blind spots
High-efficiency heating and cooling air conditioning system, able to adjust the cab temperature to a comfortable range within 3 minutes even in extreme weather.

2.4 Extreme Durability & Low Maintenance Cost

All structural parts (boom, arm, chassis) are made of Caterpillar high-strength alloy steel, welded by industrial robots, and have passed 10,000 hours of fatigue test under extreme load
Sealed and lubricated track chain, sealed supporting rollers and idlers, with a service life 30% longer than similar products of other brands
All daily maintenance points are arranged at ground-accessible positions, no need to climb the upper frame to replace oil, filters and other consumables
Standard equipped with Cat Product Link remote monitoring system, which supports real-time tracking of equipment location, operating hours, fuel consumption and fault warnings, greatly improving fleet management efficiency.

3. Wide Application Scenarios

The 320D2 can be equipped with a variety of optional attachments (hydraulic breaker, grapple, ripper, auger, clamshell bucket) to adapt to different working scenarios:

Civil construction: foundation excavation, earthmoving, material loading on construction sites
Infrastructure construction: road and railway subgrade excavation, slope trimming, pavement demolition
Mining and quarrying: overburden stripping, ore loading, small quarry production
Water conservancy projects: river dredging, reservoir construction, irrigation trench digging
Urban renewal: old building demolition, construction waste removal, pipeline laying
Special scenarios: forestry clearing, emergency rescue, material lifting operations.

4. Sustainability

The 320D2 meets EU Stage IIIA / US EPA Tier 3 emission standards, with low carbon emissions per unit of workload. All components comply with Caterpillar’s recyclable standards, with a end-of-life recyclable rate of over 90%. Caterpillar also provides certified remanufactured parts for maintenance, which can reduce replacement costs by 40%~60% while ensuring the same quality as new parts, lowering the overall environmental impact of the equipment.

Non flooded

No accident

Original product

Used Caterpillar 320D2 Excavator

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