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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

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

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

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. 

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Parts and components
Automation

Improve efficiency, profiltability 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

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