4.5 Ton Excavator
Compact Design: Ideal for family courtyards and small farms due to its size and maneuverability.
Strong Durability: Equipped with a Yanmar diesel engine for reliable performance.
Efficient Operation: Supports various tasks like digging, planting, and lifting with ease.
User-Friendly Control: Mechanical controls simplify operation and maintenance.
Global Distribution: Available in the US through direct shipment from warehouses.
Product Introduction
The KU-45 Mini Excavator is equipped with a robust Yanmar 3TNV88F diesel engine delivering 18.2kW of maximum power. This reliable 4-cylinder water-cooled engine ensures exceptional fuel efficiency while maintaining low noise and vibration levels. With a fuel tank capacity of 40L and hydraulic oil tank of 33L, the KU-45 is built for extended operations. The engine's climbing ability of 58% (30°) and maximum rotational speed of 2200 RPM make it suitable for challenging terrains and demanding construction tasks.
Featuring robot-welded large and small arms, the KU-45 achieves 8% increased structural strength compared to conventional welding methods. The innovative upper cylinder design protects critical components, extending cylinder life and enhancing overall durability. Built-in oil pipes hidden inside the boom effectively reduce pipeline damage risks. The extended and thickened chassis, manufactured through an overall forging process, ensures superior stability. With an overall weight of 3,515kg and 0.09m³ bucket capacity, this machine balances power with compact maneuverability
The KU-45 offers a spacious, comfortable cabin with ample legroom and an adjustable driver's seat for enhanced productivity during long working hours. The boom's lateral swing capability (75° left/55° right) provides 18% increased working radius, enabling efficient coverage in tight spaces. Hydraulic pilot-operated electrified handles ensure precise control, while high/low travel speed functions (3.0/4.2 km/h) adapt to various job requirements. The full-opening engine cover and conveniently located hydraulic service ports simplify maintenance, minimizing downtime and maximizing operational efficiency.
Product Details
Full Opening Engine Cover Raising the engine hood exposes most of the powerplant, allowing fast, unimpeded reach to every maintenance point. |
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New LED Boom Work Light LED work lights—halogen-free. |  |
Spacious driving experience Spacious legroom, easy-to-use controls; adjustable seat moves forward and back for personalized comfort. |  |
Variable speed motor Dual-speed travel motor—high and low gears—delivers greater power and quicker response. |  |
Thickened chassis Extended, thickened chassis, integrally forged as a single unit for ultimate durability. |  |
Yanmar engine Powerful and dependable, the KU-45 Yanmar diesel engine delivers superior horsepower and performance. It offers low noise and vibration levels, excaptional fuel efficiency. |  |
Product Specifications
| Basic Performance Parameters | |
| Working Weight(kg) | 3515 |
| Bucket capacity(m³) | 0.09 |
| Travel speed low/high speed(Km/h) | 3.0/4.2 |
| Climbing ability(%) | 30° |
| A:Maximum Digging Height(mm) | 4600 |
| B:Maximum Unloading Height(mm) | 3175 |
| C:Maximum Digging Depth(mm) | 2880 |
| E:Max. digging radius(mm) | 4965 |
| Side Swing | √ |
| Side Swing Angle (L/R) | 75/55 |
| Undercarriage Expansion | / |
| Equipment Body | |
| J:Overall Length(mm) | 4485 |
| K:Overall Width(mm) | 1550 |
| L:Overall Height(mm) | 2440 |
| Bulldozer Width/Height | 1550/335 |
| Engine | |
| Engine Brand | Yanmar |
| Maximum power(Kw) | 18.2 |
| Cooling method | Water cooling |
| Fuel Type | Diesel |
| Fuel tank | |
| Fuel tank(L) | 40 |
| Hydraulic oil tank(L) | 33 |
Applications
Landscaping & Green Space Refurbishment
Navigate easily through narrow 1.2 m gates and operate delicately around sensitive garden areas.
Excavate tree pits with precision to match required root-ball dimensions.
Create shallow drainage swales and French-drain trenches suitable for rain garden installations.
Efficiently remove old turf for quick and seamless lawn replacement.
Utility & Irrigation System Installation
Install water, gas, fiber optic, or drip irrigation lines more efficiently than walk-behind trenchers.
Reach a digging depth of 2.4 m to operate below frost levels in most climates.
The 400 mm bucket maintains uniform trench width for faster backfilling and ground compaction.
Side-swing boom design enables trenching immediately adjacent to existing paved surfaces.
Indoor & Low-Clearance Applications
Access standard doorways with non-marking rubber tracks suitable for finished floors.
Excavate basement floors to increase usable headroom.
Break and remove interior concrete slabs using an attached hydraulic breaker.
Operate effectively within low-clearance areas such as 2.3 m parking structures.
Roadside & Municipal Maintenance
Complete various urban tasks including sidewalk panel replacement, pothole preparation, and signpost hole drilling within short work windows.
Zero tail-swing design allows operation within coned-off traffic lanes.
Dual-speed travel mode (0-4 km/h) matches the pace of working crews on foot.
Waterway & Environmental Management
Utilize attachments including 600 mm ditching buckets and hydraulic rakes for various tasks.
Remove silt from irrigation channels without requiring water diversion.
Place rip-rap accurately for effective erosion control.
Break thin concrete spillways and load debris directly into transport vehicles.
Packaging & Shipping
All KMX mini excavators are shipped in industrial-grade export packaging, engineered to withstand the rigors of international transit and ensure secure delivery to your site.
Robust Crating System
Each machine is securely mounted on a heavy-duty steel frame and enclosed in vacuum-sealed protective film. This barrier safeguards key components from dust, humidity, and physical impact, preserving the unit in factory-fresh condition upon arrival—even after extended shipping periods.
Streamlined Container Loading
Integrated fork pockets and built-in ramps enable efficient container loading by a single operator. Once positioned inside a 20GP or 40HQ container, the excavator is immobilized using four-point lashing chains and ISO-standard tensioners, providing full stability during ocean or rail transport.
Company Profile
Since its founding in 2009, Yancheng KMX Machinery Manufacturing Co., Ltd. has integrated R&D, production, global sales, and after-sales support within a 270,000 m² advanced manufacturing base, supported by a team of over 500 professionals. To enhance service responsiveness, the company operates its own parts warehouses in Chicago and Houston, enabling rapid supply and technical support for international clients.
With 93 patents and a dedicated R&D team, KMX develops loaders, excavators, and landscaping equipment that meet leading international standards. The company has been recognized as a National High-Tech Enterprise and a National "Specialized and Innovative Little Giant" Enterprise, leveraging automated laser cutting, CNC machining, robotic welding, and integrated PLM-ERP systems to ensure precision and efficiency in mass production.
KMX machinery is trusted by users across Europe, the Americas, Asia, and Africa. Guided by the principle of delivering superior value, the company is committed to advancing intelligent, durable equipment on its path to becoming a world-renowned manufacturer.
