Changsha Potency Mechanical Technology Co., Ltd.
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HG21 360° Slewing Angle Concrete Spider Boom with Max Horizontal Reach 21m and 7.5Kw Power of Motor
Our Potency HG21 fully hydraulic concrete distribution rod is a smart construction machine customized for efficient concrete pouring. It features a robust high-strength structure combined with an advanced hydraulic control system. The equipment is equipped with a three-section hydraulic folding arm structure, boasting a total fabric radius of 21 meters and an independent height of 4.2 meters to the arm root hinge point.
The arm can be adjusted to different angles ranging from 0° to 90°, 0° to 180°, and 0° to 220°, providing flexibility in operation. Additionally, it supports 360° full rotation, making it suitable for a wide range of complex construction scenarios.
The hydraulic system of this equipment adopts a high-pressure design of 28 MPa, along with a 7.5 kW motor drive, and utilizes HM46 anti-wear hydraulic oil to guarantee system stability.
The operation of this system supports both wired and wireless dual-mode remote control, providing convenient remote control capabilities. Moreover, it is equipped with wind speed monitoring function to ensure the safety of operation. The allowable wind speed is ≤ 13.8 m/s during fabric placement and ≤ 7.9 m/s during installation.
For concrete conveying, the equipment is equipped with a combination of Φ 133 × 4.5 mm conveying pipe and 5 ″ × 3000 mm flexible hose, meeting the requirements of high-strength concrete conveying. Additionally, the working temperature range of the system covers from -20 ℃ to 48 ℃.
| Slewing Angle | 360° |
| Max Horizontal Reach | 21m |
| Boom Arms | 3 Sections |
| Pressure of Hydraulic System | 28Mpa |
| Power | 380V/50Hz |
| Power of Motor | 7.5Kw |
| Application | Concrete Placement |
| Stationary Height | 4.2m |
In terms of structural design, the boom is developed based on a mature platform for pump trucks. Through finite element analysis , modal testing , and fatigue testing optimization , high-strength steel plates are welded to the same level as the pump truck to ensure long-term reliability.
The mobile version can be quickly transferred through lifting equipment without the need for fixed foundations, significantly improving construction efficiency. This series of products is widely used in scenarios such as building floors, ship borne projects, and bridge foundations, with both fixed stability and mobile flexibility.