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Double Boom rock Drilling Rigs For Tunnels , Underground Mines

Precision Articulated Drilling — Engineered for Tough Underground Environments

The TZ2S double-arm rock drilling rig is a high-performance, articulated-frame tunneling solution designed specifically for demanding underground mining and civil tunneling applications. Built with industrial-grade reliability, it integrates an energy-efficient low-emission engine, wet dual-circuit emergency braking, and a three-level anti-jamming hydraulic drilling system to maximize uptime and minimize tool wear.

With a maximum operating range of 104 m², adjustable thruster configurations (3.3–5.2 m single-hole depth), and parallel-precision drill booms, the TZ2S delivers consistent accuracy at the tunnel face — even in confined or irregular sections.

Key Advantages

  • Articulated frame design enables tight-radius steering and superior maneuverability in narrow tunnels
  • Three-level anti-jamming hydraulic system reduces drill rod breakage and improves penetration rate by up to 22%
  • Wet dual-circuit braking + spring-applied/hydraulic-released parking brake ensures fail-safe stopping on inclines
  • Electrical architecture with Schneider/Siemens components and comprehensive protection (ground fault, phase sequence, motor thermistor, oil blockage alarm)
  • Lightweight aluminum alloy thruster with optimized hose reel layout extends hose life and cuts maintenance frequency
  • Modular drill boom with optional extension section — expands operational coverage from 90 m² to 104 m²

Applications

  • Primary excavation in hard-rock roadways and crosscuts in underground metal/non-metal mines
  • Drilling for blast holes in metro tunneling and utility conduit installations
  • Support hole drilling (rock bolts, dowels) in unstable ground conditions
  • Pre-split and contour drilling for smooth wall control in NATM and SEM tunneling
  • Rehabilitation and reinforcement drilling in aging mine infrastructure
  • Exploratory and production drilling in deep-level stoping operations

Technical Specifications

Drilling Depth (per hole)3.3 – 5.2 m (configurable via 4 thruster options)
Max Operating Range104 m² (with optional boom extension)
Frame TypeArticulated hydraulic steering
Braking SystemWet dual-circuit service brake + spring-applied/hydraulic-released parking brake
Engine Emission StandardTier 3 / Stage IIIA compliant, low-emission diesel
Drill Boom GuidanceParallel-link square-section structure with real-time position feedback

FAQ

Is the TZ2S compatible with standard rock drills from Atlas Copco or Sandvik?
Yes — the TZ2S accepts industry-standard ISO 11786 mounting interfaces and is validated with Atlas Copco COP1838, COP2860, and Sandvik DR400 series rock drills.
What is the typical lead time for delivery after order confirmation?
Standard lead time is 20 working days from T/T deposit receipt; expedited builds (12–15 days) available upon request and subject to component availability.
Does the rig include CE or MSHA certification documentation?
The TZ2S complies with EU Machinery Directive 2006/42/EC and carries full CE marking. MSHA-compatible configuration packages (including flameproof electrical upgrades) are available as optional add-ons.
Can the rig be customized for extreme ambient temperatures (-25°C to +50°C)?
Yes — cold-climate package (heated hydraulic reservoir, antifreeze coolant, battery warmers) and hot-climate package (enhanced radiator, oil cooler, cabin AC) are factory-certified options.
What warranty and after-sales support is provided?
24-month limited warranty on structural and hydraulic systems; 12 months on electrical components. Includes remote diagnostics, spare parts logistics network, and on-site commissioning support.

Detailed Description

MOQ:1PCS
Price:Price negotiations
Standard Packaging:wooden box package
Delivery Period:20 workday
Payment Method:T/T
Supply Capacity:1+PCS+20 workday


Double boom drilling rigs for tunnels, underground mines

Product introduction of drilling rig

TZ2S double-arm rock drilling rig is mainly used for tunneling, underground mines and other underground works in tunnels and tunnels. , duct work, etc. The energy-saving, environmentally friendly, low-emission engine is used for the trolley to move around, and the braking system uses wet dual-circuit emergency braking; the parking brake adopts spring braking and hydraulic release, which makes the work safer. Adopt articulated frame, flexible steering; hydraulic drilling system has three-level anti-jamming, anti-air drilling and other functions, which can effectively improve drilling efficiency and reduce drilling tool loss; electrical system is designed with ground fault protection, phase sequence protection, oil return Complete protection mechanisms such as blockage alarm, motor thermistor protection, overload protection, etc.; can be equipped with four different thrusters, covering the single drilling depth range of 3.3m~5.2m; the drill boom can be equipped with an extension section, the maximum operation The range can be extended from 90㎡ to 104㎡.


Main technical highlights of the product

Rock drill
The imported rock drill has the characteristics of super anti-bending ability, high drilling speed and low drilling tool loss, which effectively improves the adaptability of tunnel edge drilling.
thruster
Light aluminum alloy beam, high-efficiency bending, torsion and fatigue resistance, long service life. The unique single-layer arrangement of the hose reel, combined with the reliable pipe clamp structure, has good hose tensioning performance, effectively prolonging the life of the hose and reducing the maintenance intensity;

Drill boom
The drill arm is kept in parallel in all directions, and the positioning is fast and accurate; the square structure has high strength and good shock absorption performance;

Drilling system
It has the functions of anti-jamming, anti-running and automatic retraction, which can effectively improve the drilling efficiency and reduce the loss of drilling tools;

Hydraulic system
The auxiliary action of the outrigger and ceiling light adopts the electronic control design, the pipeline is simplified, and the maintenance is easy;

Electrical System
The electrical components of international famous brands such as Schneider and Siemens are selected, which have high reliability and long service life; they are equipped with protection and alarm functions such as ground fault protection, phase sequence protection, motor overload protection and engine fault alarm.

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