4 Ton Digger For Sale
YANMAR Diesel Engine – Powerful, reliable, low-noise, fuel-efficient performance (18.2 kW).
Upper Cylinder Design – Protects cylinders, reduces wear, and enhances durability.
German Three-Way Pump – “One pump, one control” system for smooth, precise hydraulic operation.
Reinforced Chassis – Extended and thickened forged chassis ensures high strength and stability.
Two-Speed Travel Motor – Supports high and low speeds for better power and control.
Product Introduction
The STE45 4 Ton Excavator is a compact and versatile machine designed for high-efficiency operations in construction, landscaping, and utility projects. Powered by a YANMAR 3TNV88F diesel engine delivering 18.2 kW, it offers strong performance with low noise, minimal vibration, and excellent fuel efficiency, making it reliable for long working hours.
Designed with operator comfort in mind, the excavator features a spacious cabin with ample legroom and a fore-and-aft adjustable seat. Hydraulic pilot controls ensure smooth and precise operation, while high-brightness LED boom work lights improve visibility and safety during low-light conditions.
Built for durability and efficiency, the STE45 features an extended and thickened forged chassis, an upper-mounted cylinder design for reduced wear, and robot-welded boom and arm for 8% stronger structural integrity. The boom swings left and right, and hydraulic hoses are routed inside to minimize damage risk, while the industry-leading boom design extends the working radius by 18%, providing maximum coverage and flexibility on job sites.
Product Details
Full Opening Engine Cover The tilt-up engine cover allows most of the engine to be exposed, making components easier to access. |
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Equipped with a YANMAR engine Powerful and dependable, the STE45 YANMAR diesel engine delivers superior horsepower and performance. It offers low noise and vibration levels, exceptional fuel efficiency. Power:18.2kw |
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Spacious driving experience The spacious cabin offers ample legroom, and the driver’s seat is adjustable forward and backward for enhanced comfort and ease of operation. |
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Thickened chassis The chassis is extended and thickened using a full forging process for superior strength and durability. |
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Variable speed motor The travel motor supports both high and low speeds, delivering stronger power and better performance. |
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New LED Boom Work Light Equipped with high-brightness LED headlights, replacing traditional halogen lamps for improved visibility. |
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| Lateral swing of the upper arm The boom swings left and right, expanding the machine’s operating range. |
 | Cylinder up to The excavator features an upper-mounted cylinder design to protect the cylinders, extend their lifespan, and enhance overall durability. |
| Robot welding The boom and arm are robot-welded, improving structural strength by 8% for greater durability. |
| Built-in oil pipe The hydraulic hoses are routed inside the boom, significantly reducing the risk of damage. |
| Extra-long reach; efficient coverage The boom features an industry-leading, extended, and thickened design with left-right swing, increasing the working radius by 18%. |
Product Specifications
Basic Performance Parameters | Size | ||
Weight(kg) | 3800 | J Total length(mm): | 4880 |
Bucket capacity(m³): | 0.12 | K Total width(mm): | 1740 |
Walking speed Low/High speed(Km/h): | 2.4/4.4 | L Total height(mm): | 2550 |
Gradeability(%): | ≤30° | Bulldozer width/height(mm): | 1740/320 |
A Maximum excavation height(mm): | 4910 | Engine | |
B Maximum unloading height(mm): | 3545 | Engine Brand： | Yanmar |
C Maximum Digging Depth(mm): | 3000 | Engine model: | 3TNV88F |
E Maximum digging radius(mm): | 5500 | Maximum power(Kw): | 18.2 |
side swing angle（left/right） | 52/65° | Maximum Rotation Speed(rpm): | 2200 |
Hydraulic System | Number of cylinders: | 3 | |
Main pump type/model: | HP5V45 | Cooling method: | water-cooling |
Main pump brand： | Hengli | Engine oil change volume(L): | 6.7 |
Max. flow rate of main pump(L/min): | 96.8L/min | Fuel type: | diesel |
multi-way valve： | HVSE-09-09-PL270-BE117 | Fuel label: | —Number 10 |
Multi way valve brand： | Hengli | Theoretical fuel consumption(L/h): | 4 |
Rated set pressure(Mpa): | 24.5 | Track | |
Walking hydraulic motor type: | FTM03C-022011PV054HL01-01 | 〇-Rubber (track width * pitch * number of sections): | 300*55*84 |
Walking Motor Brand： | Yantai Eddie | 〇-Steel (track width * pitch * number of sections): | 300*101*44 |
Rotary hydraulic motor type: | Hengli/HM5X/(9r/min） | Configuration | |
Tank | cab | ● | |
fuel tank(L): | 50 | armrest | ● |
hydraulic tank（L） | 40 | Counterweight | ● |
air-conditioning | ● | ||
Applications
This mini excavator is designed for versatile, high-efficiency operations in confined and light-duty work environments. It delivers reliable performance across agriculture, landscaping, construction, and utility projects, making it an ideal choice for both professional contractors and private users.
In landscaping and garden projects, it excels at tree planting, garden cultivation, drainage trenching, and lawn renovation. Its compact size allows easy access to residential gardens, parks, and green areas while minimizing ground disturbance. For trenching and utility installation, the excavator efficiently handles ditch digging, cable burying, and water supply pipeline installation, providing accurate trench depth and width for irrigation systems and underground service projects.
Thanks to its small footprint and maneuverability, the machine is well-suited for indoor construction, basement work, and light demolition in tight or restricted spaces. It is also effective for road maintenance, pavement repair, foundation preparation, and municipal infrastructure projects, particularly in urban environments. When paired with attachments, it can perform concrete breaking, canal cleaning, drainage maintenance, and desilting operations, making it highly versatile for irrigation channels, riverbank upkeep, and environmental protection tasks.
Packaging & Shipping
Our mini excavators are shipped using professional export-grade packaging and logistics, ensuring maximum protection and safe delivery to customers worldwide.
Secure Packaging
Each excavator is mounted on a reinforced steel frame and wrapped in protective plastic film, shielding key components from dust, moisture, and minor impacts during transit.
Container Loading
Machines are loaded into standard 20GP or 40HQ containers using forklifts and ramps. Each unit is securely lashed to prevent movement, ensuring stable and safe transportation by sea or land.
Company Profile
Founded in 2009, Yancheng KMX Machinery Manufacturing Co., Ltd. is a leading manufacturer of construction and landscaping machinery, integrating research and development, production, export, and after-sales service. Covering more than 270,000 m² and employing over 500 professionals, KMX operates overseas warehouses in Chicago and Houston to ensure fast delivery, efficient logistics, and localized support for international customers.
With 93 patents and a skilled R&D team, KMX produces loaders, excavators, and landscaping equipment that meet international quality standards. Recognized as a National High-Tech Enterprise and a “Specialized & Innovative” Little Giant Enterprise, the company invests continuously in smart manufacturing, leveraging automated laser cutting, CNC machining, robotic welding, and advanced management systems such as PLM and ERP to guarantee efficiency, precision, and consistent product quality.
KMX Machinery exports to Europe, North America, Asia, and Africa, building long-term partnerships worldwide. Guided by the mission to “create maximum value for customers,” KMX is committed to delivering innovative, reliable machinery and establishing itself as a world-class mechanical manufacturing enterprise.
