Used Caterpillar 307.5 Excavator

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Caterpillar 307.5 Compact Hydraulic Excavator Detailed Introduction

The Caterpillar 307.5 is a 7.5-ton class next-generation compact excavator developed by Caterpillar Inc., positioned as a high-efficiency, low-cost solution for small and medium-sized construction scenarios. It inherits Caterpillar's 90+ years of engineering machinery R&D and manufacturing experience, and is one of the best-selling models in the global 7-8 ton excavator segment.

1. Core Specifications

Parameter	Standard Configuration Value
Operating Weight	7300 – 7800 kg (varies with track type, attachment and counterweight configuration)
Rated Net Power	43 kW @ 2200 rpm
Bucket Capacity	0.28 – 0.42 m³
Max Bucket Digging Force	50.6 kN
Max Arm Digging Force	37.2 kN
Max Digging Depth	4080 mm
Max Horizontal Digging Reach	6710 mm
Max Dump Height	4450 mm
Travel Speed	2.4 km/h (low) / 4.5 km/h (high)
Gradeability	30°
System Working Pressure	28 MPa

2. Power System

The 307.5 is equipped with a Caterpillar proprietary C2.4 DI 4-cylinder turbocharged diesel engine, with emission variants adapted to different global markets:

Versions for developed markets meet EU Stage V / U.S. EPA Tier 4 Final emission standards, with a diesel particulate filter (DPF) and selective catalytic reduction (SCR) system, no need for frequent manual regeneration
Versions for emerging markets meet local emission requirements (such as China Non-road III, India CEV Stage III) without complex aftertreatment devices, adapting to low-quality fuel in remote areas

The engine adopts high-pressure common rail fuel injection technology, optimized combustion efficiency, and 10% lower fuel consumption than the previous generation 307E2 model under the same working conditions. It supports normal start at -20℃ without additional preheating devices, and has no power attenuation at altitudes below 3000m, adapting to extreme working environments.

3. Hydraulic System

It adopts Caterpillar's intelligent load-sensing hydraulic system with independent flow distribution, which accurately matches the flow demand of boom, arm, bucket and travel mechanisms according to actual operation actions, reducing unnecessary hydraulic loss and improving the coordination of compound actions.

Main pump maximum flow: 158 L/min, ensuring fast action response and strong excavation performance
3 optional working modes:
1. Power Mode: for heavy excavation, high-load loading scenarios
2. Economy Mode: for finishing, land leveling and other light operations, further reducing fuel consumption
3. Lifting Mode: for heavy hoisting, with stable pressure output to avoid shaking of lifted items
Optional auxiliary hydraulic pipelines, supporting the use of breakers, grapples, shears and other attachments

4. Structure & Durability

All key structural parts are designed for long-term high-load operation:

Upper frame, undercarriage, boom and arm adopt reinforced welded structure, with thickened steel plates and castings added at stress concentration points, passing 10000-hour high-load durability test
Heavy-duty sealed and lubricated track chain, lifetime lubricated carrier rollers and idlers, reducing daily maintenance requirements
The standard bucket uses high-strength wear-resistant steel for cutting edges and side plates, with 20% longer service life than ordinary buckets
Optional front dozer blade, supporting site leveling, backfilling and auxiliary stability improvement during heavy excavation

5. Operator Comfort & Safety

The cab meets ROPS (Roll-over Protective Structure) and FOPS (Falling Object Protective Structure) international safety standards:

Wide panoramic field of view, with 30% larger glass area than previous generation models, reducing blind spots during operation
High-back air suspension seat with adjustable lumbar support, armrests and tilt angle, adapting to operators of different heights
Ergonomic electro-hydraulic proportional control lever, small operating force, low vibration, reducing fatigue during long-term operation
Cab working noise is as low as 74 dB(A), equipped with fully automatic air conditioning, 12V USB charging port, Bluetooth audio system
8-inch LCD monitor displays real-time operating parameters, fault codes, maintenance reminders, etc. Optional rear view camera and overload warning system further improve operation safety.

6. Maintenance & Cost Efficiency

The 307.5 is designed to reduce the total cost of ownership:

All daily maintenance points are arranged on the ground side, no need to climb the upper frame for inspection, and routine check can be completed within 10 minutes
Engine oil and oil filter service interval is extended to 500 working hours, hydraulic oil and hydraulic filter service interval reaches 3000 working hours, greatly reducing maintenance costs and downtime
Caterpillar's global 24/7 after-sales network provides spare parts supply and technical support, the equipment has a high residual value rate, and the second-hand residual value is 10-15% higher than similar products in the same service period.

7. Typical Applications

The 307.5 adapts to a wide range of operation scenarios, supporting more than 20 types of Caterpillar official work accessories, and the optional quick coupler can realize accessory replacement within 1 minute:

Urban municipal works: pipe laying, trench excavation, road repair, green belt construction
Landscape and garden engineering: site leveling, pond excavation, tree planting
Rural construction: house foundation excavation, rural road renovation, small water conservancy facility construction
Small demolition works: equipped with hydraulic breakers for small building demolition
Material handling: equipped with grapples, forks for bulk material loading, wood handling, etc.

Non flooded

No accident

Original product

Used Caterpillar 307.5 Excavator

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