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A powerful tool for small‑section tunnel construction: the Zhengxun Heavy Industry ZXZY100 single‑arm rock‑drilling rig, delivering efficient breakthroughs in tight working conditions.

Release time:

2026-08-25

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Summary:

In tunnel construction, while large‑section equipment options are plentiful, small and medium‑size sections as well as narrow tunnels have long been persistent challenges: limited space prevents the use of bulky dual‑arm machines, and their heavy weight and complex maintenance hinder productivity. To address this industry pain point, Zhengxun Heavy Industry has launched the ZXZY100. Single-arm rock drilling rig Specifically engineered for tunneling in small and medium cross-sections, it features a simple yet reliable single‑arm hydraulic design that is easier to maintain than dual‑arm models, delivering exceptional cost‑effectiveness while ensuring efficient and stable operations.

Unlike the complex boom structures of traditional double‑curved‑arm rock‑drilling rigs, the ZXZY100 features a single‑curved‑arm biomimetic joint design with multi‑degree‑of‑freedom motion, enabling the boom to rotate 360°, pitch, and extend or retract. This increases the working envelope by more than 40% while minimizing unnecessary overhangs, allowing for agile maneuvering even in confined spaces.

Remote intelligent rock drilling reduces personnel risks.

Zhengxun Heavy Industry’s single-arm rock‑drilling rig is equipped with an intelligent remote‑control system, leveraging a multi‑degree‑of‑freedom robotic arm to perform remote operations. In high‑risk areas such as collapse zones and areas with elevated gas concentrations, personnel can stay clear of the working face, thereby strengthening the safety barrier for construction. Integrated environmental sensing and gas monitoring programmable module (optional) , dynamically adjusting support and drilling parameters, thereby improving both construction safety and efficiency by 70%.

Diesel–electric dual-mode hybrid power, saving energy and reducing costs.

Diesel–electric dual-mode propulsion allows switching to pure electric mode for operations inside tunnels. This reduces exhaust emissions and improves fuel efficiency by 15%–20%, creating a more environmentally friendly working environment in underground tunnels while meeting both the need for efficient relocation and eco‑friendly construction within the tunnel.

High-frequency impact rock drilling accelerates construction in hard rock conditions.

Equipped with high frequency Hydraulic impactor , with an impact frequency of up to 6,000 impacts per minute. Hard-rock drilling speed is increased by 25%, while energy consumption is reduced by 10%. For drilling in tough surrounding rock, it delivers faster hole‑making and boasts a low overall equipment failure rate.

Streamlined structure, easy to maintain and simple to use.

The single‑arm design features a simplified hydraulic system with fewer components, resulting in fewer potential failure points compared to dual‑arm models. It’s easy to operate and maintain on site, quick for operators to master, and helps reduce long‑term maintenance costs—delivering true value for money.

Highway/Railway Tunnels with Small to Medium Cross-Sections

Drilling of blasting holes for tunnel excavation and drilling of anchor bolt support holes, enabling flexible execution of excavation and support operations within confined tunnels.

Underground mine roadway

It is perfectly suited for narrow underground working conditions, such as mine drifts and exploration tunnels, as well as for drilling blast holes and anchor bolt holes.

Water Conservancy Diversion Tunnel

Excavation of small‑section diversion tunnels for water intake and flow guidance, with drilling operations conducted using the drill-and-blast method.

Civil defense and underground utility tunnel projects

Underground civil defense structures and small-scale utility tunnels, blasting drilling and Support anchor bolts Drilling.

It primarily handles blast-hole drilling in tunnels and roadways, while also performing drilling for rock bolts and cable‑anchor support. This achieves integrated excavation and support drilling, with a single machine handling the entire drilling process—replacing manual pneumatic drills—thereby significantly reducing labor intensity and improving drilling accuracy and operational safety.

Eliminate redundant configurations—high‑cost‑performance rock‑drilling equipment.

Most rock drilling rigs on the market tend to lean toward… Large cross-section During construction, small tunnels and narrow passageways either leave little room for maneuver or incur persistently high procurement and maintenance costs. The Zhengxun ZXZY100 single‑arm rock‑drilling rig precisely targets the small‑ to medium‑section market: with a highly flexible boom, intelligent safety features, hybrid‑powered energy efficiency, straightforward maintenance, and outstanding cost‑effectiveness. It eliminates the need to pay for oversized capabilities that go unused, aligning seamlessly with the real‑world demands of project conditions—making it the preferred equipment for drilling and blasting in small and medium cross‑sections.

Precision engineering equipment, empowering projects.

For complex underground projects, choosing the right equipment can double the results with half the effort. Zhengxun Heavy Industry continues to invest deeply in tunneling and mining machinery, providing solutions tailored to real-world site conditions to help projects improve quality and boost efficiency.

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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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