The “Power Tool for Tackling Tough Challenges” on The Roof of The World: The Uniroc Face Drill Rig WD633 Solves High-Altitude Drilling Difficulties!

Recently, during the critical construction phase of the Ya'an-Nyingchi plateau railway – a super-engineering project on the ‘Roof of the World’ – tunnel worksites at 4,300 metres above sea level faced dual challenges of extreme geological conditions and harsh climatic environments. At this critical juncture, the face drill rig WD633 (L1) , independently developed by Uniroc, has emerged as the trailblazer in tunnel excavation, providing robust support for the plateau railway construction.

The WD633 integrates rock drilling and bolting operations, demonstrating stable, intelligent and efficient characteristics during bolting and excavation advancement work.

Confronted with complex geological conditions featuring a 7×9-metre excavation cross-section and rock mass grades 3-4, the WD633 completed 160 rock drilling operations in approximately three hours. The average drilling time per hole was reduced to around one minute and forty seconds, significantly enhancing construction efficiency. Simultaneously, overbreak was controlled within 10cm, effectively reducing subsequent support material usage and lowering construction costs. Each shift achieved a blasting advance of 4 metres, providing robust assurance for the overall tunnel excavation progress.

Key Product Features

Supports importing hole layout diagrams for precise drilling positioning, featuring self-diagnostic fault detection and a safety voice alarm system; Visualised drilling angle with automatic parallel alignment of the feed beam;

Enables automatic collection and storage of construction logs, drilling records, and real-time rock drilling data, with direct connectivity to the construction unit's management platform.

A single unit requires only two operators and one assistant to run, with personnel positioned away from the working face for enhanced safety during operations.

Fully enclosed lifting cab, significantly enhancing operational visibility and safety while reducing noise and dust exposure.

National heavy machinery, mission accomplished without fail. From the treacherous highlands to the nation's heartland, confronting complex geological challenges, the Wuxin WD633 has become the preferred solution for overcoming difficulties through its formidable capabilities of ‘intelligence’ and “efficiency”. Moving forward, Wuxin Equipment will continue to deepen its expertise in tunnel engineering machinery, laying solid foundations for more ‘super projects’ with more advanced technology and more reliable products. The saga of the WD633 continues deep within the plateau's tunnels—this time, it remains the foremost ‘powerhouse’ at the forefront of the challenge.