Used Caterpillar 306E Excavator

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Caterpillar 306E Compact Crawler Excavator Detailed Introduction

The Caterpillar 306E is a 6-ton class compact crawler excavator under Caterpillar’s industry-leading E-series compact equipment lineup, designed to balance high performance, fuel efficiency, durability and operating flexibility for light to medium-duty construction scenarios. It is widely favored by small contractors, rental fleet operators and individual users for its low total cost of ownership and strong adaptability to complex working conditions.

1. Core Specifications

Parameter	Details
Operating Weight	5,795 – 6,050 kg (12,776 – 13,338 lb, varies with configuration)
Net Rated Power	41.5 kW (55.6 hp) at 2,400 rpm
Emission Standard	Tier 3 / Stage IIIA (adjustable to higher emission standards for regional requirements)
Standard Bucket Capacity	0.22 – 0.32 m³ (0.29 – 0.42 yd³)
Maximum Digging Depth	3,820 mm (12 ft 6 in)
Maximum Digging Reach	6,220 mm (20 ft 5 in)
Maximum Dumping Height	4,130 mm (13 ft 7 in)
Swing Speed	11 rpm
Travel Speed	2.6 km/h (low) / 4.6 km/h (high)
Drawbar Pull	56 kN
System Hydraulic Pressure	28 MPa (4,060 psi)

2. Core Performance Advantages

2.1 Power System

The 306E is equipped with a Caterpillar proprietary C2.4 4-cylinder direct-injection turbocharged diesel engine, optimized for low-speed high-torque output:

Up to 15% lower fuel consumption than the previous generation 306D under the same working conditions, thanks to electronic fuel injection control and optimized combustion structure
3 optional working modes: Power (P) mode for heavy digging and lifting tasks, Economy (E) mode for light operations to reduce fuel use, and auto-idle function that lowers engine speed automatically when hydraulic levers are neutral for over 5 seconds
Excellent cold start performance, operates reliably at temperatures as low as -15°C (5°F) without extra preheating devices, adapted to high-altitude and cold-region operations

2.2 Hydraulic System

It adopts Caterpillar mature load-sensing flow-sharing hydraulic system, delivering precise and responsive control:

Supports simultaneous multi-action operation (digging, swinging, lifting) without lag or speed interference, ensuring smooth operation for fine tasks like pipe laying
Standard auxiliary hydraulic pipelines, compatible with a wide range of attachments including breakers, augers, grapples and compaction plates, reducing tool switching time
High-efficiency filtration system and sealed hydraulic circuit extend hydraulic oil service life to 4,000 working hours under standard maintenance, reducing operating costs

3. Operator Comfort & Ergonomics

The 306E’s cab is designed to reduce fatigue during long-hour shifts:

ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certified pressurized cab, with dust-proof and sound-insulation design, internal noise level controlled below 78 dB(A)
Fully adjustable suspension seat with lumbar support, ergonomic pilot control joysticks with low operating force, reducing arm strain for operators
Standard high-efficiency air conditioning system with multiple vents, built-in storage compartments, cup holders and USB charging port
Panoramic frameless front windshield provides unobstructed view of the bucket and working area, improving operation safety and accuracy
Multi-language full-color LCD monitor displays real-time operating data, fault alerts and maintenance reminders

4. Durability & Maintainability

Reinforced X-type undercarriage with heavy-duty track links, rollers and idlers, resistant to impact and wear, suitable for harsh construction sites
Boom and stick are made of high-tensile steel, with reinforced plates added at high-stress points, passing 10,000 hours of fatigue test to ensure long service life under heavy load
All daily maintenance points (engine oil dipstick, fuel filter, air filter, hydraulic oil check port) are accessible at ground level, no need to climb on the machine, cutting daily maintenance time by 30%
Extended service intervals: 500 hours for engine oil and filter replacement, 1,000 hours for engine air filter replacement, reducing downtime
Supported by Caterpillar’s global after-sales network, genuine spare parts and professional technical support are available in most regions.

5. Typical Application Scenarios

Municipal engineering: Road repair, pipeline laying, sidewalk construction, urban green belt maintenance
Residential & commercial construction: Site clearing, foundation digging, material handling, interior demolition
Agricultural projects: Farmland leveling, irrigation ditch excavation, greenhouse construction
Rental market: High residual value and low failure rate make it one of the most popular 6-ton excavator models in the global rental industry.

6. Standard Safety Configurations

Travel and swing alarm system, emits warning sound when the machine moves or rotates to remind surrounding personnel
Hydraulic safety lock: Disables all hydraulic operations when the lock lever is activated, preventing accidental movement caused by misoperation
Overload warning system: Sends audio and visual alerts when lifting load exceeds rated value, avoiding tipping or structural damage
Optional rear-view camera to eliminate rear blind spots during reversing and traveling.

Non flooded

No accident

Original product

Used Caterpillar 306E Excavator

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