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Application Scenarios
Product Description
The QL-20 Mini Excavator is a powerful and high-capacity construction machine designed for more demanding excavation tasks while maintaining a compact footprint. With a robust operation weight of 2000 KG, it provides superior stability and strength for heavy-duty landscaping, municipal infrastructure, and site preparation.
Powered by high-performance engine options, including the 18.8 KW Laidong 385, the QL-20 delivers significant digging force and efficient cycle times. Its advanced hydraulic system operates at a high pressure of 22 mpa with a maximum flow rate of 35 L/min, ensuring precise control and the ability to handle larger attachments with ease.
Despite its increased power, the machine maintains a compact overall width of 1100 mm and a tight minimum tail swing radius of 840 mm, allowing it to navigate confined job sites effectively. With an impressive maximum digging depth of 2100 mm and a dumping height of 2000 mm, the QL-20 offers the reach and versatility required for both deep excavation and efficient truck loading.
Key Advantages
Compact Design for Tight Spaces
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Balanced chassis width (1100 mm) and a short tail swing radius (840 mm).
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Perfect for urban projects where both power and maneuverability are required.
Efficient Digging Performance
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Deep excavation capabilities with a maximum digging depth of 2100 mm.
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Extended outreach with a maximum digging radius of 3450 mm.
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High dumping height of 2000 mm optimizes loading for larger transport vehicles.
Reliable & High-Performance Power
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Equipped with premium engine options like the Laidong 385 (18.8 KW) or Kubota series.
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Strong 18.8 KW rated power ensures steady performance in challenging soil conditions.
Superior Hydraulic Capability
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High-pressure 22 mpa system with a 35 L/min flow rate for fast, smooth operation.
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Large 20 L hydraulic tank capacity for improved cooling and sustained performance.
Enhanced Gradeability & Speed
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Excellent climbing ability of 45 ° for navigating steep or uneven terrain.
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Variable travel speeds between 2.2-4.3 KM/h for fast job site transitions.
Parameter
| Category | Parameter | Specification |
| Basic Parameters | Operation weight | 2000 KG |
| Overall length | 2300 mm | |
| Overall height | 2200 mm | |
| Overall width | 1100 mm | |
| Working Range | Max. Digging Height | 3100 mm |
| Max. Dumping Height | 2000 mm | |
| Max. Digging Depth | 2100 mm | |
| Max. Digging Radius | 3450 mm | |
| Min. Tail swing radius | 840 mm | |
| Max. lifting height of earth shovel | 325 mm | |
| Max. digging depth of dozer | 350 mm | |
| Dynamical System | Engine Model | Laidong 385 (18.8 KW) / Kubota D722 (10.2 KW) / Kubota D902 (11.8 KW) |
| Rated power | 18.8 KW | |
| Hydraulic System | Operating Pressure | 22 mpa |
| Max flow rate | 35 L/min | |
| Hydraulic tank capacity | 20 L | |
| Performance | Bucket Capacity (SAE) | 0.03 m³ |
| Climbing ability | 45 ° | |
| Travel speed | 2.2-4.3 KM/h | |
| Unit swing speed | 8-10 r/min |
