Product Description
Mini Caterpillar 303.5 Used CAT 3ton Excavators Track Diggers Original Engine
| 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.
Used Caterpillar Cat 303.5 Excavator Detalis
Machine Accessories
Our Company
We are Shanghai Yanbang Engineering Machinery Co., Ltd., committed to providing various used construction machinery to users from different countries around the world. We specialize in providing high-quality used excavators and professional services to customers around the world. Our team consists of a professional team with rich experience, superb skills and diverse backgrounds.Our machinery inventory includes excavators, bulldozers, wheel loaders, rollers, graders, dump trucks, forklifts and cranes, and we always strive to provide the best quality machinery at the best prices.
Packing and Delivery
Why Choose Us
1. How is the quality of the machine ?
All the machine we deliver to our customer is in high quality, excellent working performance and ready to work.
2. What is your payment team?
30% as deposit advance, 70% before the machine is shipped.
3. How long does it take for the machine to start shipping?
Shipping usually starts 7 to 15 days after the final payment is made..
4. Will our company provide any service to the machine?
Yes! Before we deliver the machine, we will test, check, services, maintenance and clean it the machine.
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Mini Caterpillar 303.5 Used CAT 3ton Excavators Track Diggers Original Engine Images
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