Used Caterpillar 323D2 Excavator

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Caterpillar 323D2 Crawler Excavator Detailed Introduction

The Caterpillar 323D2 is a 23-ton class medium crawler excavator manufactured by Caterpillar Inc., the global leading construction machinery manufacturer. As an upgraded iteration of the classic Cat 323 product line, it balances strong power output, high fuel efficiency, extreme durability and low operating cost, making it one of the best-selling medium excavator models for construction projects across the world.

1. Core Power System

The 323D2 is equipped with a Cat C7.1 ACERT 6-cylinder turbocharged air-to-air aftercooled diesel engine, which meets China Stage III / EU Stage IIIA emission standards:

Net power output reaches 119 kW (162 hp) at 2000 rpm, with strong torque reserve to cope with heavy-load excavation conditions
Adopts high-pressure common rail fuel injection technology and electronic engine control module, reducing comprehensive fuel consumption by 6%~10% compared with the previous generation 323D
Built-in automatic engine speed control and idle shutdown function, automatically reduces engine speed under no-load conditions and shuts down after long-time idle, cutting unnecessary fuel loss
Excellent low-temperature start performance: supports normal start at -32℃ without extra auxiliary heating devices.

2. High-Efficiency Hydraulic System

It adopts Caterpillar's proprietary positive flow control load-sensing hydraulic system, with industry-leading operation precision and response speed:

Realizes smooth coordination of composite actions (boom lifting, swing, bucket excavation at the same time), improving operating efficiency by 8% compared with competing models of the same class
Built-in boom and stick regeneration circuit, recycles hydraulic oil during boom lowering and stick retracting, reduces pump load and further cuts fuel consumption
All core hydraulic components (main pump, main control valve, travel/swing motor) are original Caterpillar high-precision parts, with low leakage rate and 30% longer service life than industry average
Reserved standard hydraulic auxiliary interface, supports quick connection of various attachments (hydraulic breaker, grapple, shear, auger etc.), and the optional quick coupler reduces attachment replacement time to less than 5 minutes.

3. Structural Durability

The 323D2 is designed for extreme harsh working conditions, with a design service life of more than 15,000 hours under normal operation:

Heavy-duty X-type lower frame adopts fully welded high-strength steel structure, with strong torsion resistance, suitable for rugged mining and mountain construction sites
Sealed and lubricated track chain reduces wear between pins and bushings, extending track service life by at least 35%
The boom and stick are made of high-tensile steel, processed by robot welding and stress relief treatment, which is not easy to deform or crack under long-time heavy load operation
Optional bucket configurations: standard earthmoving bucket (1.2m³), reinforced rock bucket (1.0m³), wide mud bucket (1.5m³) to adapt to different working conditions.

4. Operator Comfort & Safety

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

Pressurized sealed cab reduces external dust intrusion, and the operating noise at the operator's ear is only 74 dB(A), reaching passenger car level quietness
Ergonomic adjustable suspension seat with optional heating function, the control joystick is set at a reasonable height, reducing fatigue for long-time operation
Full-color high-definition monitor displays real-time equipment parameters, fault codes and maintenance reminders, and optional rearview camera eliminates blind spots during reversing
Fully automatic climate control system realizes fast cooling and heating, adapting to extreme ambient temperatures from -40℃ to 50℃.

5. Maintenance & Cost Advantage

All maintenance points (oil filter, fuel filter, air filter, hydraulic oil drain port) are designed to be accessible from the ground, eliminating the need to climb on the upper frame for daily maintenance
Long maintenance cycle: engine oil and filter replacement every 500 hours, hydraulic oil and filter replacement every 5000 hours, greatly reducing downtime and maintenance cost
Equipped with Caterpillar Product Link intelligent management system, supports remote monitoring of equipment location, working hours, fuel consumption and fault warning, convenient for fleet management
Global Caterpillar after-sales network provides 24/7 parts supply and technical support, and the residual value of second-hand 323D2 is 10%~15% higher than competing models of the same class.

6. Typical Application Scenarios

The 323D2 is suitable for a wide range of operations:

Earthwork excavation, foundation construction for municipal engineering, real estate projects
Subgrade excavation, slope trimming for highway and railway construction
Ore stripping, shallow mining for small and medium-sized mines
River dredging, embankment construction for water conservancy projects
Demolition, timber handling with corresponding attachments.

Key Specifications

Item	Parameter
Operating Weight	22,500 ~ 24,500 kg
Max Digging Depth (standard stick)	6,710 mm
Max Digging Reach	9,850 mm
Max Bucket Breakout Force	165 kN
Bucket Capacity	1.0 ~ 1.5 m³
Travel Speed	3.5 ~ 5.7 km/h
Swing Speed	11.5 rpm
Fuel Tank Capacity	410 L
Hydraulic Oil Capacity	240 L

Non flooded

No accident

Original product

Used Caterpillar 323D2 Excavator

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