In trenchless projects such as underground pipeline laying, municipal pipe network transformation, and crossing rivers and highways, the automatic rod changing HDD, with its intelligent rod changing technology, has become a core equipment to break through the bottlenecks of traditional construction. Compared with the cumbersome and time-consuming manual rod changing, the automatic rod changing HDD can realize automatic loading, unloading and docking of drill rods, significantly improving construction continuity. This article analyzes the advantages, applicable scenarios and selection points of the automatic rod changing HDD to help you match efficient equipment.

1. Why Does the Automatic Rod Changing HDD Innovate Trenchless Construction?

The core value of the automatic rod changing HDD lies in "intelligence + efficiency": traditional directional drills require 2-3 people to cooperate with manual rod changing, taking 5-8 minutes for a single rod change. However, the automatic rod changing HDD, through the collaboration of hydraulic mechanical arms and sensors, can complete rod changing within 30 seconds, extending the effective daily construction time by 40%. This innovation makes the automatic rod changing HDD particularly advantageous in long-distance crossing projects, reducing manual intervention while lowering safety risks.

2. Core Advantages of the Automatic Rod Changing HDD

The efficiency of the automatic rod changing HDD is reflected in three aspects:

(1) Improved Continuity: Without frequent shutdowns for rod changing, the automatic rod changing HDD can achieve a seamless cycle of "drilling and soil extraction - automatic rod unloading - new rod docking - continued drilling", avoiding the risk of hole collapse caused by rod changing interruptions.

(2) Manpower Optimization: Only 1-2 people are needed for operation, replacing the traditional 3-4 person rod changing team. The automatic rod changing HDD significantly reduces labor costs and labor intensity, especially suitable for construction scheduling in complex terrains.

(3) Precision Guarantee: The positioning error of mechanical arm rod changing is ≤2mm. The automatic rod changing HDD can reduce deviations from manual docking, ensuring the verticality and tightness of drill rods, and improving hole forming quality and pipeline laying accuracy.

3. Applicable Scenarios of the Automatic Rod Changing HDD 

The automatic rod changing HDD adapts to various trenchless needs:

(1) Municipal Pipeline Construction: When laying water pipes and cables under roads, the automatic rod changing HDD can quickly cross asphalt pavements, reducing road excavation and traffic impact.

(2) Long-Distance Crossing Projects: For long-distance pipeline laying under rivers and railways, the continuous construction capability of the automatic rod changing HDD can shorten the construction period by more than 30%.

(3) Complex Stratum Operations: In easy-to-collapse strata such as soft soil and sandy soil, the rapid rod changing capability of the automatic rod changing HDD reduces the exposure time of holes, improving construction safety.

Hengwang Group HWF135 HDD: Reliable Application of Automatic Rod Changing Technology

Hengwang Group's HWF135 HDD is equipped with a mature automatic rod changing system, representing a high-performance automatic rod changing HDD . Its intelligent mechanical arm responds quickly with precise and smooth rod changing actions, perfectly inheriting the continuity advantages of the automatic rod changing HDD and significantly reducing construction downtime. The overall design of the equipment focuses on stability and operational convenience, adapting to municipal, crossing and other multi-scenario construction needs, allowing the efficiency of the automatic rod changing HDD to be fully exerted in practical projects. Relying on the "four-dimensional integration" service system, Hengwang provides operation training and after-sales support for the automatic rod changing HDD to ensure stable equipment operation.

Take Action Now: Leave your construction distance and stratum type to get a customized plan for the automatic rod changing HDD. The Hengwang technical team will respond within 24 hours! Choosing Hengwang's automatic rod changing HDD turns trenchless construction from "frequent shutdowns" to "efficient continuity", escorting project progress.