Used Caterpillar 325C Excavator

Reading: 2152

Caterpillar 325C Hydraulic Excavator Detailed Introduction

1. Overview

The Caterpillar 325C is a 25-ton class mid-size heavy-duty hydraulic excavator, belonging to Caterpillar’s globally recognized C-series excavator lineup launched in the early 2000s as the upgraded successor to the 325B L. Designed to balance high productivity, fuel efficiency, durability and operator comfort, it is widely deployed in construction, mining, quarrying, demolition and municipal engineering projects worldwide. The standard 325C and extended undercarriage variant 325C L are the most common configurations on the market.

2. Core Technical Specifications

Item	Specification
Operating Weight	24,100 – 27,300 kg (53,130 – 60,190 lb, varies by undercarriage, boom/stick and attachment configuration)
Engine Model	Cat 3126B ATAAC (Air-to-Air Aftercooled) inline 6-cylinder 4-stroke turbocharged diesel engine
Gross Power	140 kW (188 hp) @ 2,000 rpm
Net Rated Power	128 kW (172 hp)
Emission Standard	U.S. EPA Tier 2 / EU Stage II
Bucket Capacity Range	0.8 – 1.5 m³ (1.05 – 1.96 cubic yards)
Max Digging Depth (standard 5.7m boom + 2.9m stick)	6,760 mm (22.2 ft)
Max Digging Radius (standard configuration)	9,850 mm (32.3 ft)
Max Dump Height (standard configuration)	6,510 mm (21.4 ft)
Travel Speed	3.4 km/h (low) / 5.5 km/h (high, 2.1 / 3.4 mph)
Swing Speed	11.5 rpm
Max Gradeability	35° (70% grade)
Ground Pressure (standard track)	57 kPa (8.3 psi); 44 kPa (6.4 psi) for wide wetland tracks

3. Core Performance Features

3.1 High-Efficiency Powertrain

The 3126B engine adopts electronic unit injection (EUI) technology, delivering 35% high torque reserve to maintain stable output under heavy load, high altitude or high ambient temperature conditions, with 5-8% better fuel efficiency than its predecessor 325B. It supports reliable cold start at -15°C (5°F) without auxiliary heating, and can be equipped with a cold start package for operation at -32°C (-25.6°F). The auto-idle function automatically reduces engine speed when the machine is idle, cutting fuel consumption and operating noise.

3.2 Precision Hydraulic System

The 325C is equipped with Caterpillar’s advanced load-sensing hydraulic system with pressure compensation, which distributes oil flow on demand to match actual working loads. It guarantees smooth and synchronous multi-action operations (e.g. simultaneous boom lifting, swing and stick retraction) with no lag or jitter, greatly improving operation efficiency and fine operation accuracy for grading, lifting and pipelaying tasks. The main pump delivers a total flow of 430 L/min (113.6 gpm) with a maximum working pressure of 34,300 kPa (4,975 psi). Pre-plumbed auxiliary hydraulic lines for breakers, quick couplers and other attachments are available as optional equipment.

3.3 Ultra-High Durability

All key structural components (boom, stick, X-frame undercarriage, upper frame) are made of high-tensile strength steel with box-type welded structure, and reinforced at high-stress points to resist torsion and impact, adapting to long-term heavy-duty work in quarries and demolition sites. The sealed and lubricated track chain, idlers, rollers and sprockets have extended service life, with minimal daily maintenance required. Users can choose standard steel tracks, wide tracks or low-ground-pressure wetland tracks to adapt to different ground conditions.

3.4 Operator Comfort & Safety

The pressurized sealed cab reduces dust intrusion and keeps interior noise as low as 75 dB(A), far lower than most competing models in the same class. It is fitted with a fully adjustable air-suspension seat, low-effort pilot control joysticks with short stroke, and a multi-function LCD monitor that displays real-time operating data (fuel consumption, water temperature, oil pressure, fault codes, etc.) to reduce operator fatigue during long shifts.The cab comes standard with ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certification, with an emergency exit skylight, travel alarm, swing alarm and optional rear-view camera to guarantee operator safety.

4. Maintenance Convenience

All daily maintenance points (oil filter, fuel filter, hydraulic return filter, air filter housing) are designed to be accessible from ground level, eliminating the need to climb onto the upper frame for routine service. Extended service intervals further reduce downtime: engine oil and filter change every 500 operating hours, hydraulic oil change every 4,000 hours, hydraulic return filter replacement every 1,000 hours, and air filter replacement every 2,000 hours. The Caterpillar Electronic Technician (ET) diagnostic system allows technicians to quickly read fault codes and troubleshoot without disassembly of large components.

5. Typical Application Scenarios

Earthmoving: Site clearance, foundation excavation, subgrade construction for highways and railways, land grading
Quarry & aggregate: Ore loading, crushing plant feeding, overburden stripping
Demolition: Small to medium building demolition, when fitted with hydraulic breakers or shears
Municipal & utility: Pipeline trenching, landscaping, waste handling
Special operations: River dredging (with long-reach boom package), forestry log loading (with grapple attachment)

6. Optional Configurations

Long reach (LR) boom and stick package, for extra digging depth and reach for dredging or deep foundation work
Attachment kits: Hydraulic breaker, grapple, hydraulic shear, ripper, quick coupler
Undercarriage upgrades: Wide track, wetland track, rubber track pads for paved road operation
Environment adaptation packages: Cold start package, high-temperature cooling package for extreme climate areas
Cab upgrades: Heating, ventilation and air conditioning (HVAC) upgrade, heated seat, rear-view camera, reverse radar

Note: The Caterpillar 325C was officially discontinued and replaced by the 326D, 326 GC and 326 Next Gen series in the product lineup. However, due to its outstanding durability, low maintenance cost and abundant spare parts supply, it remains one of the most popular second-hand excavator models on the market, and is still in active service in a large number of construction sites globally.

Non flooded

No accident

Original product

Used Caterpillar 325C Excavator

RELATED PRODUCTS

Caterpillar 315D2GC

Caterpillar 305.5E2

Caterpillar 323D2

Caterpillar 312D2GC