Highlights
Leading stability
The crane boom utilizes a high-strength steel, U-shaped cross-section, straight-arm design. With its 6-section boom version, SQS300 achieves a maximum working radius of 23 meters. Dual-cavity outriggers provide industry-leading stability with a span exceeding 7000mm. Standard equipment includes a tandem pump system, sensitive proportional valves, an intelligent temperature-controlled cooling system, and an automatic hook retraction device. Optional dual-slewing gearboxes + bent-axis piston motors enhance both operational precision and durability.
Powerful lifting performance
The crane boom utilizes a high-strength steel, U-shaped cross-section, straight-arm design. With its 6-section boom version, SQS300 achieves a maximum working radius of 23 meters. Dual-cavity outriggers provide industry-leading stability with a span exceeding 7000mm. Standard equipment includes a tandem pump system, sensitive proportional valves, an intelligent temperature-controlled cooling system, and an automatic hook retraction device. Optional dual-slewing gearboxes + bent-axis piston motors enhance both operational precision and durability.
Technical Specifications
Load Chart
| No. | Item | Unit | SQS300-5 | SQS300-6 |
| 1 | Max. Lifting Mass | kg | 12000 | 12000 |
| 2 | Max. Lifting Moment | t·m | 30 | 30 |
| 3 | Max. Working Radius | m | 19.3 | 23 |
| 4 | Max. Lifting Height | m | 21.2 | 24.7 |
| 5 | Max. Luffing Angle | ° | 75 | 75 |
| 6 | Slewing Angle | ° | 360 | 360 |
| 7 | Boom Sections | section | 5 | 6 |
| 8 | Basic Boom Working Radius | mm | 5300 | 5400 |
| 9 | Front Outrigger Span* | mm | 2400-7000 | 2400-7000 |
| 10 | Rear Outrigger Span* | mm | 2400-4900 | 2400-4900 |
| 11 | Min. Installation Clearance | mm | 1016 | 1016 |
| 12 | Recommended Power Input | kW | 30 | 30 |
| 13 | System Rated Flow | L/min | 80（63/40） | 80（63/40） |
| 14 | System Rated Pressure | MPa | 25 | 25 |
| 15 | Hydraulic Oil Tank Capacity | L | 180 | 180 |
| 16 | Machine Weight** | kg | 5000 | 5558 |
*Edge-to-edge length of outriggers
**Crane unit only (excluding rear outriggers & accessories)
SQS300 Lifting Capacity Specifications
| Working Radius （m） | Max. Lifting Load at Different Boom Lengths (kg) | ||||
| 5.3m | 8.8m | 12.3m | 15.8m | 19.3m | |
| 2.50 | 12000 | ||||
| 3.00 | 10700 | 7500 | |||
| 3.50 | 9700 | 6600 | |||
| 4.00 | 7000 | 5800 | 5500 | ||
| 4.50 | 6400 | 5500 | 5300 | ||
| 5.00 | 6000 | 5200 | 5000 | 4000 | |
| 5.50 | 4900 | 4200 | 3900 | ||
| 6.00 | 4300 | 3800 | 3750 | 3500 | |
| 6.50 | 4000 | 3700 | 3650 | 3300 | |
| 7.00 | 3700 | 3600 | 3550 | 3100 | |
| 7.50 | 3300 | 3100 | 3000 | 2900 | |
| 8.00 | 2900 | 2700 | 2600 | 2500 | |
| 8.50 | 2600 | 2500 | 2300 | 2200 | |
| 9.00 | 2300 | 2200 | 2100 | ||
| 9.50 | 2200 | 2100 | 2000 | ||
| 10.00 | 2100 | 2000 | 1900 | ||
| 10.50 | 2000 | 1900 | 1800 | ||
| 11.00 | 1900 | 1850 | 1700 | ||
| 11.50 | 1850 | 1800 | 1650 | ||
| 12.00 | 1800 | 1700 | 1600 | ||
| 12.50 | 1600 | 1550 | |||
| 13.00 | 1550 | 1500 | |||
| 13.50 | 1480 | 1400 | |||
| 14.00 | 1400 | 1350 | |||
| 14.50 | 1350 | 1300 | |||
| 15.00 | 1300 | 1250 | |||
| 15.50 | 1250 | 1200 | |||
| 16.00 | 1100 | ||||
| 16.50 | 1000 | ||||
| 17.00 | 900 | ||||
| 17.50 | 800 | ||||
| 18.00 | 750 | ||||
| 18.50 | 700 | ||||
| 19.00 | 650 | ||||
| 19.30 | 600 | ||||
| Recommended Reeving | 6 | 4 | 4 | 4 | 4 |
Load Moment Diagram
Dimensions
