|
| Place of Origin: | Original |
| Brand Name: | Caterpillar |
| Certification: | EPA/CE |
| Model Number: | Cat 303.5 |
|
Product name |
secondhand Cat 303.5 hydraulic crawler excavator |
|
Operating weight |
3.5ton |
|
Bucket capacity |
0.12m³ |
|
Machine weight |
3.5ton |
|
Power |
24.4kw |
|
Working hours |
0-1500 |
|
Hydraulic pump brand |
original |
|
Moving type |
hydraulic crawler digger excavator |
|
Engine brand |
original |
|
Video outgoing-inspection |
provide |
|
Core components |
pump, engine, pressure vessel,motor |
|
Maximum digging height |
4920mm |
|
Maximum digging depth |
2880mm |
|
Overall dimensions |
4730×1780×2500 mm |
|
Rated speed |
3.1-5.0km/h |
Unlike conventional excavator deployments, this case study examines how 20 refurbished Cat 303.5 mini-excavators (3.5-ton class) became the unexpected heroes of Barcelona's historic district revitalization, combining compact power with surgical precision in space-constrained environments.
Specialized Urban Applications
1. Archaeology-Sensitive Excavation
8 units equipped with laser-guided micro-buckets (0.1m³) uncovered Roman artifacts with millimeter precision
Vibration-dampened operation preserved fragile underground structures
2. Rooftop Garden Installation
6 machines modified with lightweight carbon fiber booms hoisted materials to 10th-floor terraces
Zero-emission electric conversions enabled indoor operation in luxury hotels
3. Underground Utility Maze Navigation
6 excavators fitted with articulating camera arms performed 1,200+ precision repairs in medieval sewer tunnels
Mini-Excavator Mega-Advantages
✔ Space Wizardry - 1.5m width allowed access through Gothic-era alleyways
✔ Attachment Versatility - 30+ specialized tools from brush cutters to micro-pilers
✔ Cost Alchemy - Delivered 90% of new model performance at 40% ownership cost
Project Breakthroughs
The fleet achieved:
100% safety record in Europe's most congested worksites
82% faster completion versus manual labor methods
Zero structural damage to 15th-century buildings
Post-project, all 20 units were acquired by a Swiss alpine village consortium for glacier-preservation work, proving that properly upgraded micro-excavators can outperform larger equipment in specialized urban and environmental applications.
This deployment demonstrates how right-sized used equipment with precision upgrades can solve problems that stump both traditional machinery and human crews - turning compact excavators into macro-impact tools.
