How Carter CT37B4’s 860mm Tail Swing Revolutionizes Urban Renewal Projects
Space-Saving Engineering Meets Uncompromised Power in Historic Districts
When Barcelona’s Gothic Quarter needed underground utility upgrades, contractors faced an impossible choice: *dismantle 15th-century facades* or abandon modern machinery. Enter the Carter CT37B4 compact excavator – with its industry-leading 860mm ultra-short tail swing, this 3.75-ton mini digger completed pipe installations in 1.8m alleys without touching a single heritage brick.
Why Urban Planners Choose CT37B4:
🔥 Space Intelligence
Operates in 1.72m-wide corridors (narrower than a European delivery van)
57°/63° boom deflection avoids fragile balconies
32kPa ground pressure protects cobblestone streets
⚡ Power Where It Counts
The Yanmar 3TNV88 engine delivered shocking performance:
30.4kN bucket force to break medieval bedrock
58% grade climbing on rain-slicked inclines
88L/min hydraulic flow for simultaneous hammering/grabbing
*"We completed Phase 1 in 11 days – 40% faster than manual labor. The CT37B4 became our ‘micro-surgery tool’ for historic cities."*
– Luis Moreno, Barcelona Infrastructure Agency
