3-ton Mini Digger
✅Powerhouse: Equipped with the YANMAR 3TNV88 engine (20.2 kW @ 2200 rpm) and 82.6 N·m max torque for heavy-duty digging and lifting efficiency.
✅High-Performance Hydraulics: Advanced system with 88 L/min max flow and 24.5 MPa working pressure ensures rapid, precise operation.
✅Extended Reach & Depth: Achieve a 4.86 m max digging height, 3.11 m digging depth, and 5.47 m max reach for versatile applications.
✅Exceptional Digging Force: 30.4 kN bucket force and 18.2 kN arm force tackle tough materials with ease.
✅Compact Agility: A 860 mm tail swing radius, 1.72 m width, and 4.92 m length enable effortless navigation in tight spaces.
✅Low Ground Impact: 32.0 kPa grounding pressure minimizes surface damage on sensitive terrain.
CT37B4 Mini Excavator Introduction:
The CT37B4 Mini Excavator packs a punch with its 3.75-ton frame and 0.12 m³ bucket, engineered for contractors needing heavy-duty performance in compact spaces. Powered by the upgraded YANMAR 3TNV88 engine (20.2 kW, 82.6 N·m torque), it delivers 10% more power for faster digging and lifting, paired with high-efficiency hydraulics (88 L/min flow, 24.5 MPa pressure) for seamless operation. Tackle deep excavation with 3.11 m digging depth, reach heights up to 4.86 m, and extend to 5.47 m for versatile applications. Its ultra-tight 860 mm tail swing and 1.72 m width glide through urban job sites, while 32.0 kPa ground pressure protects delicate surfaces. Features like dual-speed travel (2.2/4.2 km/h), a rugged undercarriage (58% climbing grade), and an integrated dozer blade (300 mm height) make the CT37B4 ideal for construction, utilities, and landscaping—where raw power, precision, and space efficiency converge.
CT37B4 Mini Excavator Specifications:
| Model | CT37BH | Model | CT37BH |
| Operating weight | 3.75 | G-Tail swing radius (mm) | 860.0 |
| Bucket capacity | 0.12 | H-Track ground length(mm) | 1710 |
| Engine model | YANMAR 3TNV88F | J-Track length (mm) | 2160.0 |
| Rated power (kw/r/min) | 18.2/2200 | K-Track gauge (mm) | 1420 |
| Maximum torque （N*m） | 82.6/1320 | L-Track width (mm) | 1710.0 |
| Engine displacement（L） | 1.642 | M-Track shoe width (mm) | 300 |
| Max.flow (L/min) | 88 | N-Turntable width (mm) | 1550.0 |
| Working pressure (Mpa) | 24.5 | O-Max. digging height (mm) | 4855 |
| Fuel tank capacity (L) | 50 | P-Max. dumping height (mm) | 3460.0 |
| Hydraulic oil tank capacity (L) | 40 | Q-Max. digging depth (mm) | 3105 |
| Travel speed (km/h) | 2.2/4.2 | R-Max. vertical wall digging depth (mm) | 2700.0 |
| Swing speed (r/min) | 9.5 | T-Max. digging reach (mm) | 5465 |
| Max. climbing degree (%) | 58 | U-Max. digging reach at ground level (mm) | 5350.0 |
| Arm digging force | 18.2 | V-Min. swing radius (mm) | 2475 |
| Bucket digging force (KN) | 30.4 | X-Distance between center of rotation and tail length (mm) | 860.0 |
| Average grounding pressure (Kpa) | 32.0 | Z-Height of counterweight (mm) | / |
| A-Overall length (mm) | 4920.0 | A1-Ground length (in transportion)(mm) | 4920 |
| B-Overall width (mm) | 1720 | Arm length (mm) | 1400/1650 |
| C-Overall height (to top of boom)(mm) | 1800.0 | Boom length (mm) | 2540 |
| D-Overall height (to top of cab)(mm) | 2550/2520 | Deflection angle left°/right° | 63/57 |
| E-Counterweight ground clearance(mm) | 580.0 | Maximum dozing height/depth (mm) | 375/370 |
| F-Min. ground clearance (mm) | 295 | Dozer size width/height（mm） | 300/1720 |
Mini Excavator Package&shipment:
Mini excavators can be delivered quickly and securely across the globe thanks to our expert loading and logistics team, with available transport options like standard containers, bulk freight, and rail lines.
Why Choose Us:
Beyond offering premium-quality, high-performance products at competitive prices, Carter, as a manufacturer, guarantees timely delivery and around-the-clock after-sales support.
Company Profile:
As a key member of Huasheng Zhongtian Machinery Group (established in 2004), Shandong Carter Heavy Industry uses the technical inheritance from 1951 to lead the development of China's excavator industry.
