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Tunnel Wet-喷 Robot Arm: A New Transformation in Tunnel Construction Empowered by Technology
Release time:
2025-12-18
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Summary:
In the context of rapidly advancing transportation infrastructure development, tunnel engineering—being a critical component—directly influences the overall project’s progress in terms of both construction efficiency and quality. Traditional wet-mix concrete spraying operations for tunnels have long faced numerous challenges, including low efficiency, unstable quality, high labor intensity, and significant safety risks. However, the ZXP4517 engineering wet-mix concrete spraying vehicle launched by Zhengxun Heavy Industry, with its cutting-edge technology and outstanding performance, has brought about a revolutionary transformation to tunnel construction.
1. Intelligent control ushers in a new era of precise construction.
The ZXP4517 tunnel wet-spraying manipulator is equipped with an intelligent control system independently developed by Zhengxun Heavy Industry. This system can be described as the equipment’s “intelligent brain.” Operators need only use a handheld remote control to precisely adjust the position and angle of the spraying arm, as well as the spray direction of the nozzle and the dosage of the setting accelerator—just as if they were handling sophisticated precision instruments. In complex tunnel environments, this intelligent control method significantly enhances construction accuracy. For example, during the construction of a large railway tunnel, when faced with varying spraying requirements for areas such as the arch roof and sidewalls, operators leveraged the intelligent control system to achieve uniform concrete spraying without difficulty. This effectively eliminated issues like uneven concrete thickness and voids—problems often caused by human error in traditional construction methods—and markedly improved the quality of the tunnel lining. 
II. Efficient pumping, significantly boosting construction efficiency
The tunnel wet-spraying manipulator developed by Zhengxun Heavy Industry features advanced pumping technology, with a theoretical spraying capacity of up to 45 cubic meters per hour. This superior pumping capability is made possible by the use of large-diameter conveying pipelines—each no less than 125 mm in diameter—that run from the self-loading system all the way to the boom’s forearm. The large-diameter pipelines reduce resistance during concrete delivery, enabling the concrete to reach the spraying location quickly and steadily. In actual construction, compared to conventional wet-spraying equipment, the ZXP4517 wet-spraying vehicle can complete more concrete-spraying tasks within the same time frame, significantly shortening the overall construction period. For example, in a highway tunnel several kilometers long, the use of the ZXP4517 wet-spraying vehicle has markedly reduced the time required for wet-concrete spraying, freeing up valuable time for subsequent tunnel excavation and other construction processes, thereby effectively boosting the overall project’s construction efficiency. 
3. Safe and reliable—comprehensive protection of construction safety
Tunnel construction safety is of paramount importance, and the ZXP4517 tunnel wet-spraying manipulator has been thoroughly designed with safety in mind. The equipment is equipped with a fault-alarm system that continuously monitors its operational status in real time. Should any malfunction or abnormal condition be detected, the system immediately triggers an alarm, alerting operators to address the issue promptly. Meanwhile, the real-time positioning function enables management personnel to keep track of the equipment’s location at all times, ensuring that construction proceeds safely and in an orderly manner. In addition, the boom structure of the trolley incorporates patented technology from Zhengxun Heavy Industry, which fundamentally eliminates the problem of uneven load distribution, thereby enhancing the stability and safety of the boom. During tunnel construction at a certain mine, despite complex geological conditions and harsh working environments, the Zhengxun Heavy Industry ZXP4517 tunnel wet-spraying manipulator consistently operated reliably thanks to its dependable safety performance, providing a safe working environment for construction personnel. 
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Changsha Base:Hunan Zenxon Heavy Industry Technology Co., Ltd.
Address: Jinrong Tongxin International Industrial Park, Changsha High-tech Zone
Loudi Base:Hunan Haoda Heavy Industry Technology Co., Ltd.
Address: Loudi Avenue, Loudi High-tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province
Telephone:400-186-0868
E-mail:3804246750@qq.com
E-mail:19967177733@163.com
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