CATERPILLAR 303.5E2 MINI EXCAVATOR
3.5 TON EXCAVATOR
The Cat 303.5E2 CR is a highly versatile, 3.5-ton class mini excavator designed to bring heavy-duty performance, high breakout forces, and precision control into a compact framework. Featuring a Compact Radius (CR) tail-swing design, the machine's upper body stays within 4 inches of the tracks during rotation, making it perfect for rental clients working in tight urban environments, next to building foundations, or between utility lines.
Engineered with Cat's High-Definition Hydraulic (HDH) system, it balances power and fuel efficiency while offering smooth, simultaneous multi-function control. It comes equipped with standard auxiliary hydraulic lines extending down the stick, an automatic two-speed travel transmission, and an integrated Compass Control Panel that allows operators to easily adjust hydraulic flow for varying attachments, activate password security, and utilize a fuel-saving auto-idle system.
Technical Specifications
Equipment Parameter | Specification Metric Details |
Engine Model / Type | Cat C1.7 Turbocharged Diesel |
Engine Net Power (ISO 9249) | 23.5 hp (17.5 kW) @ 2,200 RPM |
Machine Operating Weight (with Canopy) | 7,804 lbs (3,539 kg) |
Machine Operating Weight (with Cab & A/C) | 8,133 lbs (3,689 kg) |
Maximum Digging Depth | 10 ft 2 in (3,110 mm) [11 ft 3 in with long stick] |
Maximum Reach at Ground Level | 16 ft 7 in (5,060 mm) [17 ft 7 in with long stick] |
Maximum Dump Height Clearance | 11 ft 3 in (3,430 mm) |
Bucket Digging Force | 7,419 lbf (33.0 kN) |
Stick Digging Force (Standard) | 4,249 lbf (18.9 kN) |
Total Auxiliary Hydraulic Pump Flow | 15.9 gal/min (60 L/min) |
Maximum Hydraulic Operating Pressure | 3,553 psi (24.5 MPa) |
Track Shoe Material / Width | Rubber Tracks / 11.8 in (300 mm) |
Ground Bearing Pressure | 4.6 psi (32.0 kPa) |
Travel Speed (Low / High Range) | 1.6 mph / 2.8 mph (2.6 km/h / 4.5 km/h) |
Backfill Dozer Blade Width / Height | 70.1 in (1,780 mm) / 12.8 in (325 mm) |
Fuel Tank Refill Capacity | 12.2 Gallons (46 Liters) |
