Top hammer longhole drill rigs
DL421
- Boom coverage
- 3 m
- Hole length
- Up to 54 m
- Tramming type and distance
- Hydrodynamic transmission (diesel) B4.5 (110 kW, Stage IIIA)
![DL421 Longhole drill rig](/siteassets/images/underground-drill-rigs/longhole-drill-rigs/dl421-main.jpg?width=480&height=293&rmode=crop&rsampler=bicubic&compand=true&quality=90&v=1707146409&hmac=ddaae8f75b812e6900194f69a8ffa352097f48bc097cb47fb2395d4a136d690c)
Sandvik DL421 is a versatile longhole drill rig engineered for large-scale production drilling in underground mines. It is designed for vertical and inclined plane rings and fans, as well as parallel long production holes and long single holes.
Features
-
360° drilling module rotation
With 360° boom rotation and wide tilt angle, DL421 offers good usability in a wide variety of drilling applications.
-
Drilling accuracy
Instrumentation and automation provide accurate drilling data for maximum accuracy and performance.
-
Safe working environment
The carrier is designed for good visibility and stability, ensuring safe tramming in mine drifts. The FOPS/ROPS cabin, or FOPS canopy (option), protects the operator from hazards.
-
Readiness for AutoMine® Single Drill level
AutoMine® Single Drill level is a tele-remote system enabling an operator to remotely control a single drill, in drilling and ring to ring tramming.
Product specifications
- Boom coverage
- 3 m
- Hole length
- Up to 54 m
- Tramming type and distance
- Hydrodynamic transmission (diesel) B4.5 (110 kW, Stage IIIA)
- Hole diameter
- 64 - 115 mm
- Boom type
- Frame, horseshoe
- Drift size (H x W)
- 3.6 x 3.6 m
- Rod length
- 1.22 - 1.83 m (4.00 - 6.00 ft)
- Drilling power
- HPP1590, 90 kW
- Controls type
- TAS
- Automation and teleremote availability
- One-hole automation (option), Fan automation (option), Teleremote drilling (option)
- Weight
- 22,000 kg (depending on options)
![DL421 Longhole drill rig](/siteassets/images/underground-drill-rigs/longhole-drill-rigs/dl421-001.jpg?width=480&height=270&rmode=crop&rsampler=bicubic&compand=true&quality=90&v=1695272755&hmac=fe920b649b6bb17c7a471a56049ad9fd2f81f00a28fc8b8ae432cd74c9c0d2e9)
Learn more about DL421 features
Proven CAN control system
This control system allows set-ups for any rock conditions in up-and-down-hole drilling. It offers a user-friendly operating interface and continuous data collection for productivity improvement, ensuring accuracy and speed in feed and rotation control.
Interactive fault-finding system
The fault-finding system reduces downtime, which increases productivity and efficiency.
Improve efficiency, profitability and operator safety
Software systems that help you monitor your machines, giving you a full overview of your fleet and enabling you to control and optimize your operations.
![Person in AutoMine control room](/siteassets/images/automation/flexible-safety-zone-automine.jpg?width=400&height=400&rmode=crop&rsampler=bicubic&compand=true&quality=90&v=1695272755&hmac=763d9e1a991e3254b58a9ed139c81b75ac0491ef5c50a165a171646c89909a32)
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