The DL300 and DL400-series drills are mounted on frame-steered and diesel-powered carriers. These are equipped with Sandvik rock drills, drilling modules, longhole booms and FOPS/ROPS certified operator stations for maximum performance, safety, reliability, and total drilling economy. The 360° feed rotation and wide swing/tilt angles make the units suitable for most mining methods and various drilling applications. Instrumentation and data drilling with various automation options allow maximum performance with the highest levels of drilling accuracy. Find out more information on each top hammer drill rig within each series below.

Sandvik DL432i is a fully-mechanized, highly versatile and compact electro-hydraulic top hammer longhole drill. It is designed for underground mass mining in 3.2 x 3.2 meters or larger production drifts.

DL431 Longhole drill rig

Sandvik DL431 is an electro-hydraulic drill rig engineered for production and long-hole drilling in underground mines. This versatile rig has been designed for large vertical and horizontal coverage. It drills holes with a diameter of 64 to 89 millimeters (2 ½ to 3 ½ inches) and a depth of up to 38 meters (125 feet).

DL422iE Longhole drill rig

Sandvik DL422iE is a fully automated, battery-powered top hammer longhole drill designed for underground mass mining in 4 x 4 m or larger production drifts. It is capable of drilling vertical and inclined fans and single or parallel Ø89-127 mm longholes up to 54 m in depth using ST58 and ST68 tube rods.
 

Sandvik DL421 is an electro-hydraulic, longhole drill rig engineered for large-scale production drilling in underground mines. This versatile rig has been designed for vertical and inclined plane rings and fans, as well as parallel long production holes and long single holes with a diameter of 64 to 115 millimeters (2 ½ to 4 inches), and a depth of up to 54 meters (177 feet).  

DL411 Longhole drill rig

Sandvik DL411 is an electro-hydraulic, longhole drill rig engineered for large-scale production drilling in underground mines. This versatile rig has been designed for vertical and inclined plane rings and fans, as well as parallel long production holes and long single holes with a diameter of 64 to 115 millimeters (2 ½ to 4 inches), and a depth of up to 54 meters (177 feet).  

DL331 Longhole drill rig

Sandvik DL331 is an electro-hydraulic, top-hammer, longhole drill rig engineered for work in underground mining in drifts with cross sections of 3 x 3 meters (10 x 10 feet) or larger. This one-man-operated rig is capable of drilling vertical and incline plane rings, and single or parallel long holes with a diameter of 51 to 76 millimeters (2 to 3 inches), and a depth of up to 23 meters (75 feet).  

DL321 Longhole drill rig

Sandvik DL321 is an electro-hydraulic, longhole drill rig engineered for small- and medium-scale production drilling in underground mines. This versatile rig is designed for vertical and inclined plane rings and fans, as well as parallel long production holes and long single holes. It is capable of drilling holes with a diameter of 64 to 89 millimeters (2 ½ to 3 ½ inches) with a depth of up to 38 meters (125 feet).
 

DL311 Longhole drill rig

Sandvik DL311 is an electro-hydraulic, longhole drill rig engineered for small- and medium-scale production drilling in underground mines. This versatile rig is designed for vertical and inclined plane rings and fans, as well as parallel long production holes and long single holes. It is capable of drilling holes with a diameter of 64 to 89 millimeters (2 ½ to 3 ½ inches) with a depth of up to 38 meters (125 feet).
 

DL2721 Longhole drill rig

This top hammer longhole drill is fully mechanized and compact with an electro-hydraulic top hammer designed for underground mining in 3.2 x 3.2 meter or larger production drifts.
 

DL2711 Longhole drill rig

This top hammer longhole drill is fully mechanized and compact with an electro-hydraulic top hammer designed for underground mining in 3.2 x 3.2 meter or larger production drifts.