Uniroc Face Drill Rig WD200E Assists in A China Railway 15th Bureau Air Energy Storage Project in Henan Province

A compressed air energy storage project in Henan Province is a national pilot demonstration project for new energy storage technologies. As the most technologically advanced artificial cavern compressed air energy storage facility, it is scheduled for completion and commissioning by the end of 2025. Upon completion, the project will generate approximately 420 million kilowatt-hours of electricity annually, sufficient to meet the yearly electricity demand of 350,000 households while significantly enhancing the stability of the regional power grid.

(Image source: China National Energy Storage)

China Railway 15th Bureau Group's air energy storage project in Henan Province employs a face drill rig WD200E on-site, capable of performing dual operations for both drilling and bolting operation. The tunnel cross-section requires approximately 136 holes, each averaging 5 meters in depth. Drilling operations per shift average 3 hours, with blasting advancing 4.8 meters per shift. The equipment achieves an average monthly excavation of over 144 meters and completes approximately 5,000 meters of anchor rod work per month. The face drill rig WD200E's dual-function capability for both advance holes and anchor holes enables a highly efficient “one machine, multiple uses” construction model, significantly shortening the construction cycle.

Five Key Technical Features

01 Exceptional Cross-Section Adaptability

Features an innovative curved boom structure with an extensive working range, enabling construction across multiple cross-section types and facilitating invert arch excavation. Overcomes the limitation of traditional rock drilling rigs in performing invert arch construction.

02 Method Adaptability

The curved arm structure allows operation below the horizontal line, accommodating work on upper, middle, and lower benches in two- or three-bench excavation schemes.

03 Operator Adaptability

Remote control operation is simple and easy to learn, enabling close observation of drilling conditions to effectively control over- and under-excavation. The compact vehicle length ensures maneuverability and low driving difficulty.

04 High Efficiency & Energy Savings

Single-hole drilling speed is 5-6 times faster than manual pneumatic drills, significantly boosting drilling efficiency;

05 User-Friendly Operation

Computer-controlled system enables self-balancing boom operation and displays the angle of the thrust beam, effectively controlling excavation shape and minimizing over/under-excavation.

From tackling tunnel challenges in an air energy storage project in Henan Province to efficiently constructing various underground engineering projects, Uniroc's face drill rigs have consistently centered on technological innovation and relied on reliable performance. They have become a model for domestic engineering equipment in breaking through technical barriers and leading industry upgrades.

    Moving forward, Uniroc will continue to align with national strategic priorities, deepening its commitment to equipment R&D and technological iteration. Through superior, high-efficiency products and services, it will empower more major national projects, contributing to enhanced quality and efficiency in China's infrastructure development and the sustainable growth of the new energy industry.