Used Caterpillar 323D2 Excavator

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Detailed Introduction of Caterpillar 323D2 Hydraulic Excavator

The Caterpillar 323D2 is a classic 23-ton medium-duty hydraulic excavator developed by Caterpillar Inc. As an optimized iteration of the globally recognized 323 series, it is tailored for medium-to-heavy construction scenarios, balancing high operating efficiency, low fuel consumption, exceptional durability and operator comfort. It is widely used in infrastructure construction, mining, municipal works and other fields, and is one of the most popular excavator models in its class worldwide.

1. Core Performance Specifications

Parameter	Specification
Operating weight	22,500 – 24,500 kg
Standard bucket capacity	0.8 – 1.5 m³
Max digging depth (standard 5.7m boom + 2.9m stick)	6,710 mm
Max horizontal digging reach	9,850 mm
Max bucket breakout force	165 kN
Max arm digging force	110 kN
Rated travel speed	3.5/5.5 km/h
Gradeability	30° (70%)
Swing speed	11.5 rpm

Note: Extended boom and stick configurations are available to meet deeper digging or longer reach demands.

2. Powertrain System

The 323D2 is equipped with a Caterpillar-built C7.1 ACERT inline 6-cylinder diesel engine, which meets EU Stage IIIA / US EPA Tier 3 / China Non-road Stage III emission standards:

Rated net power: 129 kW (173 hp) at 2,000 rpm, with strong low-end torque output, ensuring stable power supply under heavy load conditions
Adopts high-pressure common rail fuel injection technology and adaptive engine control system, delivering up to 10% lower fuel consumption than the previous generation 323D under the same workload
Optional cold start package supports reliable operation at temperatures as low as -32°C, and high-temperature cooling system adapts to 50°C extreme working environments
Engine oil service interval reaches 500 hours, reducing routine maintenance frequency

3. Hydraulic System

It uses Caterpillar's proprietary load-sensing hydraulic system with independent flow distribution technology:

Main pump maximum flow: 2 × 210 L/min, system working pressure: 35 MPa, fast response and smooth compound action, ensuring high precision for fine operations such as grading and hoisting
The optimized hydraulic circuit reduces pressure loss, and the perfect matching between power and hydraulic system further improves fuel efficiency
Standard auxiliary hydraulic interface supports the installation of multiple attachments (hydraulic breaker, grapple, shear, auger, etc.), greatly expanding the application range of the equipment
Hydraulic oil service interval reaches 5,000 hours, significantly reducing long-term operating costs

4. Structural Durability

The 323D2 adopts Caterpillar's industry-leading heavy-duty structural design, which can adapt to long-term harsh working conditions:

The boom and stick are made of high-tensile steel with box-type welded structure, which has passed 10,000 hours of extreme load fatigue test, and is not easy to deform under heavy-duty rock working conditions
X-shaped lower frame adopts anti-deformation design, with uniform force distribution, and has excellent impact resistance
Sealed and lubricated track chain reduces wear between pins and bushings, and its service life can reach more than 10,000 hours under normal operation
All pin shafts of the working device are equipped with dust-proof sealing rings, which effectively prevent sediment from entering and extend the service life of wearing parts

5. Operator Comfort & Safety

The cab is certified with Roll-Over Protective Structure (ROPS) and Falling Object Protective Structure (FOPS), which fully guarantees the personal safety of operators in case of accidents
Silicone oil shock-absorbing mounts reduce cab vibration by 30% compared with the previous generation model; the air-suspension seat with lumbar support can be adjusted in multiple directions to reduce fatigue during long shifts
The operating noise inside the cab is as low as 78 dB(A), which meets the global occupational health standards
The ergonomic control layout and 7-inch high-definition LCD monitor display real-time operating data, fault alarms and maintenance reminders in real time
Optional rear-view camera and perimeter lighting system greatly improve the safety of night operation and blind area operation

6. Maintenance & Intelligent Management

All routine maintenance points (fuel filter, oil filter, air filter, hydraulic oil level check port) are accessible at ground level, no need to climb the upper structure for daily inspection, reducing maintenance time by 20%
Optional Cat Product Link™ telematics system supports remote monitoring of equipment location, fuel consumption, operating hours and fault codes, helping fleet managers optimize scheduling and reduce unexpected downtime
Caterpillar's global dealer network provides 24/7 parts supply and technical support, solving equipment failures in the shortest time

7. Typical Application Scenarios

Municipal engineering: road construction, pipe laying, site clearing, greening construction
Mining and quarrying: ore loading, rock stripping, aggregate processing
Building construction: foundation excavation, material handling, small building demolition
Water conservancy and agriculture: river dredging, reservoir construction, land clearing
Special operations: equipped with special attachments to carry out demolition, wood handling, drilling and other work

Core Advantages

Compared with other excavators in the same class, the Caterpillar 323D2 has obvious competitive advantages: 15% lower comprehensive operating cost, 20% longer structural service life, and strong adaptability to extreme working environments. It is a cost-effective choice for both small construction teams and large engineering fleets.

Non flooded

No accident

Original product

Used Caterpillar 323D2 Excavator

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