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Two-Arm Rock Drilling Rig: A New Powerful Tool for Multi-Method Tunnel Excavation
Release time:
2026-11-22
Source:
Author:
Summary:
At challenging construction sites for high-speed rail and highway tunnels, traditional rock drilling equipment often struggles due to limited compatibility with specific methods, making it difficult to handle complex conditions such as multi‑stage simultaneous excavation, step‑by‑step excavation, full-face excavation, and invert construction. Zhengxun Heavy Industry’s two‑arm rock drilling rig was specifically developed to address this industry pain point, serving as a versatile tool capable of supporting all construction methods.
Dual excellence in power and energy efficiency
This rock drilling rig is equipped with a high-power China IV engine that delivers robust performance while also prioritizing fuel efficiency. It resolves the longstanding trade-off in conventional construction equipment—where strong power typically comes at the cost of high fuel consumption—by providing stable, high-torque output required for drilling during extended, continuous tunneling operations, while effectively reducing fuel consumption and helping to lower project operating costs.
Full-scenario construction adaptation capability
Zhengxun Heavy Industry’s two-boom rock drilling rig is a true all‑method rig, seamlessly covering all tunneling scenarios—including full-face excavation, benching, and invert construction—and overcoming the limitations of conventional equipment that cannot support multi‑method collaborative operations. In medium to large tunnel projects, operating two units side by side further boosts productivity, significantly reducing the overall tunnel excavation schedule.
Upgraded handling and driving stability
It features both local and remote control modes, allowing operators to flexibly choose the most suitable method based on site conditions, greatly enhancing operational convenience and construction safety. The integral chassis with a dual‑tire front axle configuration ensures smoother, more reliable travel on complex tunnel surfaces, reducing vibrations and lateral deviation during operation.
The drill arm features a dual-rotation design; compared with conventional single-rotation arms, it offers more stable operation, greater maneuverability, and significantly improved positioning efficiency. The equipment includes an integrated angle display, enabling operators to precisely monitor the rock‑drilling angle in real time, thereby better controlling over‑ and under‑excavation during tunneling and ensuring that tunnel geometry meets engineering standards.
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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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