3-ton Mini-digger
✅Powerhouse Engine: Features the YANMAR 3TNV88, delivering 20.2 kW at 2200 rpm and 82.6 N·m of torque for demanding excavation and lifting tasks.
✅High-Performance Hydraulics: An advanced system providing 88 L/min flow and 24.5 MPa working pressure enables fast, precise operation.
✅Extended Reach & Depth: Capable of a 4.86 m dig height, 3.11 m depth, and 5.47 m horizontal reach for versatile applications.
✅Exceptional Digging Power: Tackles tough materials effortlessly with 30.4 kN bucket force and 18.2 kN arm force.
CT37B4 Mini Excavator Introduction:
CT37B4 Mini Excavator: Engineered for demanding contractors, this 3.75-ton powerhouse delivers heavy-duty performance in confined spaces. Its upgraded YANMAR 3TNV88 engine (20.2 kW, 82.6 N·m torque) provides 10% more power for enhanced digging and lifting speed. Coupled with high-efficiency hydraulics (88 L/min @ 24.5 MPa), operations are seamless and precise.
Tackle diverse tasks with exceptional reach: a 4.86 m max dig height, 3.11 m digging depth, and 5.47 m horizontal reach. Its ultra-compact design (1.72 m width, 860 mm tail swing) navigates tight urban sites effortlessly, while minimal ground pressure (32.0 kPa) safeguards delicate surfaces.
Further enhancing versatility are dual-speed travel (2.2/4.2 km/h), a robust undercarriage (58% gradeability), and an integrated dozer blade (300 mm height). The CT37B4 excels in construction, utilities, and landscaping—the ideal convergence of raw power, precision, and space efficiency.
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:
Global Logistics Expertise: Our dedicated team ensures rapid, secure worldwide delivery of mini excavators. Flexible transport options include standard containers, breakbulk shipping, and rail transport.
Why Choose Us:
As a manufacturer, Carter not only delivers premium, high-performance products at competitive prices but also guarantees timely delivery and provides 24/7 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.
