Used Caterpillar 305.5E2 Excavator

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Caterpillar 305.5E2 Compact Hydraulic Excavator Detailed Introduction

The Caterpillar 305.5E2 is a 5-ton class compact hydraulic excavator developed and manufactured by Caterpillar Inc., the global leading manufacturer of construction and mining equipment. Positioned as a cost-effective, high-reliability small excavator for emerging markets, it balances work efficiency, fuel economy and durability, and is one of the best-selling models in the global 5-ton excavator segment, widely favored by small contractors, rental operators and individual users.

1. Core Performance

The 305.5E2 is designed for flexible operation in narrow working zones, with industry-leading digging and loading performance:

Working parameters: Max digging depth of 3820 mm, max ground-level digging reach of 6170 mm, max loading height of 4140 mm, standard bucket capacity ranging from 0.16 m³ to 0.22 m³
Power matching optimization: The integrated power control system reduces energy loss by 12% compared with the previous generation of 5-ton Cat excavators, delivering 15% higher fuel efficiency under the same working conditions
Adjustable working modes: 3 selectable modes to adapt to different tasks:
- Power Mode: Provides maximum 36.2 kN bucket breakout force for heavy-duty digging and hard ground breaking
- Standard Mode: Balances power and fuel consumption for daily earthmoving works
- Eco Mode: Reduces fuel consumption by up to 20% for light tasks such as grading, material handling and landscaping
High altitude adaptability: No power derating when operating at altitudes below 3000 m above sea level

2. Engine System

Rated net power: 33.5 kW (45 hp) @ 2200 rpm, max torque of 180 N·m @ 1800 rpm
Emission standard: Complies with EU Stage IIIA / US EPA Tier 3 emission requirements, and is optimized to adapt to low-quality diesel in emerging markets, reducing fuel-related failures
Durability configuration: Equipped with a heavy-duty dual-stage air filter and high-efficiency closed cooling system, which can operate stably for a long time in dusty and high-temperature construction environments
Protection function: Built-in overheat and low oil pressure automatic alarm and power reduction mechanism, avoiding irreversible engine damage under abnormal working conditions

3. Hydraulic System

Adopts Caterpillar's proven load-sensing hydraulic system, delivering precise and smooth operation experience:

Main pump flow: 2×52 L/min, average full digging cycle time of only 2.8 seconds, greatly improving operation efficiency
Compound movement optimization: Boom and arm priority valve ensures smooth and coordinated simultaneous operation of multiple actions (e.g. boom lifting + arm curling + swing), no action lag or jitter
Attachment compatibility: Optional auxiliary hydraulic lines (1 or 2 circuits) support a wide range of work tools including hydraulic breakers, augers, grapples, plate compactors and ditch cleaners, expanding the machine's application scenarios
Long maintenance interval: 3000-hour hydraulic oil and filter change interval under normal working conditions, reducing maintenance costs

4. Operator Comfort & Safety

The 305.5E2 is equipped with a standard ROPS (Roll-Over Protective Structure) / FOPS (Falling Object Protective Structure) certified enclosed cab, ensuring operator safety and comfort:

Visibility: 360° panoramic glass design with minimal blind spots, optional rear-view camera for full view of the rear working area
Comfort configuration: Adjustable suspension seat with lumbar support, ergonomic low-vibration pilot control levers, high-efficiency heating and air conditioning system, USB charging port and AM/FM radio
Low noise design: Interior cab noise level is as low as 76 dB(A), complying with international ergonomic noise standards
Safety interlock: The pilot hydraulic lock lever cuts off all working device power when raised, preventing accidental movement; automatic travel alarm beeps to remind surrounding personnel when the machine moves

5. Serviceability

Caterpillar optimizes maintenance points for high accessibility, reducing daily maintenance time:

All routine inspection points (engine oil dipstick, fuel filter, air filter, hydraulic oil level gauge, etc.) are arranged at ground level, no need to climb onto the machine for daily check
Centralized grease point for the swing bearing simplifies lubrication work
Extended service intervals: 500 hours for engine oil and filter change, 500 hours for fuel filter change, 3000 hours for hydraulic oil and filter change
Global after-sales support: Caterpillar's 24/7 global service network provides fast parts supply and technical support, reducing the total cost of ownership throughout the machine's life cycle

6. Typical Applications

The 305.5E2 is suitable for a wide range of small and medium construction scenarios:

Municipal engineering: Urban road maintenance, pipeline laying, sidewalk renovation
Landscaping: Trenching for irrigation pipelines, tree transplanting, garden site leveling
Rural construction: House foundation digging, land leveling, agricultural infrastructure construction
Small demolition: Small building demolition, construction waste removal (with hydraulic breaker)
Material handling: Bulk material loading and unloading, yard sorting (with grapple)

7. Key Technical Specifications

Item	Specification
Operating Weight	5300 – 5600 kg (depending on configuration)
Engine Model	Cat C2.4 DI Turbocharged
Rated Net Power	33.5 kW (45 hp) @ 2200 rpm
Emission Standard	EU Stage IIIA / US EPA Tier 3
Bucket Breakout Force	36.2 kN
Arm Breakout Force	23.7 kN
Max. Digging Depth	3820 mm
Max. Digging Reach (Ground Level)	6170 mm
Max. Loading Height	4140 mm
Swing Speed	10 rpm
Travel Speed (High/Low)	4.5 / 2.4 km/h
Standard Bucket Capacity	0.16 – 0.22 m³
Fuel Tank Capacity	75 L
Hydraulic Oil Tank Capacity	72 L
Interior Cab Noise Level	76 dB(A)

Overall, the Cat 305.5E2 is an ideal choice for small construction projects, with its reliable performance, low operating cost and perfect after-sales support.

Non flooded

No accident

Original product

Used Caterpillar 305.5E2 Excavator

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