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Is shotcrete and rock bolting in small tunnels a challenge? This compact tunneling rig is specially designed to tackle the hassle of limited space.
Release time:
2026-07-04
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Summary:
Have you ever encountered this situation: a tunnel with a narrow cross-section and low clearance, making it impossible to bring in large equipment? Even after painstakingly pushing the equipment in, the boom can’t swivel, leaving dead zones on the arch and sidewalls that remain uncoated. Workers are forced to set up scaffolding to do touch-up spraying—exhausting, slow, and fraught with safety concerns.
Many people assume that small tunnels can only be tackled through sheer manual effort, but that’s not the case—you just haven’t found the right “custom‑made” equipment.
Next, I’d like to recommend the ZXP2512 series wet‑spraying carriage from Zhengxun Heavy Industry, which our boss recently acquired.
This ZXP2512 series wet‑spraying carriage from Zhengxun Heavy Industry is specially designed for narrow spaces and low‑clearance tunnels. With its compact body, it can easily maneuver into tight working areas without disassembly—no more getting stuck or struggling to reposition like larger machines, saving you considerable hassle during site entry. Even more convenient is the carriage’s boom: whether spraying the arch, performing overhead shots, or treating sidewalls, it can rotate seamlessly to reach every angle, eliminating the need to repeatedly move the machine or erect scaffolding. A single positioning covers a wide work area, effectively resolving dead‑zone issues.
In the past, when working on small tunnels like these, the biggest headache was always “insufficient equipment power and sluggish efficiency.” But this wet‑spray machine from Zhengxun Heavy Industry is different: it delivers ample power, handles even complex terrain with confidence, and allows remote control of pumping—no need to keep moving back and forth, so your workflow stays uninterrupted. What’s more, its motor offers multiple speed settings; during routine operations, you can switch to an energy‑saving mode to cut costs. And even when tackling tough, stubborn material, the machine keeps up without faltering.
Even more reassuring is that its boom features a specially engineered, patented design. As a result, spraying remains steady and doesn’t wobble or produce uneven coverage. Key components are also built to last, so you don’t have to constantly monitor it for repairs—saving both time and money on maintenance.
When working in narrow tunnels, both efficiency and safety hinge on how well the equipment is matched to the task. This wet-spraying carriage from Zhengxun Heavy Industry doesn’t chase size or flashy features; instead, it focuses squarely on delivering fast, stable performance in tight spaces, systematically addressing the challenges of difficult site access, incomplete spraying, and low productivity.
After years in the construction industry, you learn that choosing equipment isn’t about picking the most expensive option—it’s about selecting the one that truly understands your site’s pain points.
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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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