Sandvik DD321 ready for the race

Sandvik DD321 boosts productivity in mine development and small scale tunneling. Powered by new efficient rock drills, robust booms and a wide selection of feeds, it offers an optimal coverage of 49 m2.

The new carrier layout is specifically designed for safe access to all service points, and all daily maintenance is conducted at ground level. Adjustable drilling settings of the new hydraulic control system which optimize drilling performance in any conditions. To ensure highly accurate drilling results and enable valuable feedback information of the drilling process, the drill rig can be equipped with TCAD instrumentation.

The DD321 is the successor to the proven Sandvik DD320 and DD420 drill rigs, with even greater serviceability, and improved performance. The modular design makes training, operating and maintenance of the fleet easier.

Key features • Drilling booms providing 8 – 49 m2 cross sections • 20 kW rock drills • TCAD/TLOG instrumentation • Fast and efficient mobile carrier • Safety cabin or canopy

Sandvik DD321-40

Main dimensions, Sandvik DD321-40C

www.sandvik.com

Coverage and turning

Technical data

Model Drift size classheight x width

m (ft)

Coveragem2 (ft2)

Max tunnel sizem (ft)

Rock drill Hole sizemm (in)

Feed length

ft

Controls Canopy/ cabin

DD321-40 4.0 x 4.0 (13 x 13)

8 - 49(86 - 527)

6.0 x 8.8(19’8” x 28’10”)

RD520HLX5

43 - 64(1 3/4 - 2 1/2)

10 to 16 Hydr. Canopy

DD321-40C 4.0 x 4.0 (13 x 13)

8 - 49(86 - 527)

6.0 x 8.8(19’8” x 28’10”)

RD520HLX5

43 - 64(1 3/4 - 2 1/2)

10 to 16 Hydr. Cabin

18°

106031752840

15°

2950

Feed Total length

TF 500–10’ 11 800

TF 500–12’ 12 350TF 500–14’ 12 550TF 500–16’ 13 000TFX–6/12’ 11 900TFX–8/14’ 11 900

1500

3990

1870

200

215082008820

6060

R 3200

R1

40°750

750

5°

W

10°

Feed R1 W

TF 500–10’ 6 200 3 500

TF 500–12’ 6 300 3 700TF 500–14’ 6 450 3 850TF 500–16’ 6 600 4 000

© 2

012

Sand

vik

Min

ing

and

Con

stru

ctio

n O

y