PV271 Hole sweeper

Mammoth Hole sweeper is a device fitted to the undercarriage of a drill rig with the function addressing chippings ejected from a blasthole & cleaning the collar of a blasthole with no manual labour.
Mammoth Hole Sweeper is designed with rotating sweeping flaps to deflect chippings ejected from the blasthole – thus preventing them from accumulating around the collar of the hole.

Mammoth Hole sweeper is a device fitted to the undercarriage of a drill rig with the function addressing chippings ejected from a blasthole & cleaning the collar of a
blasthole with no manual labour.

Mammoth Hole Sweeper is designed with rotating sweeping flaps to deflect chippings ejected from the blasthole – thus preventing them from accumulating around the collar
of the hole.

Mammoth Hole Sweeper is designed to address:

Clogging below deck on the drill rig
Chippings re-entering the blast hole
Time lost due to slowed penetration rates
Wear on the drill string

Benefits of the Mammoth Hole Sweeper

Eliminates the necessity for manually cleaning the border of the holes
Prevents chippings from piling up around the hole
Increased penetration rates
Increased bit life
Increased drill steel life
Increased life of the deckbush
Decreased deck contamination

Mammoth Hole Sweeper

Pressure Requirements: 1500-2800 PSI Range: 4.5” up to 15” Rotation: Gear drive Power: 2 x Hydraulic Motors

Hole Without Sweeper

Hole With Sweeper

Mammoth Hole Sweeper Performance Evaluation

Test results with Hole Sweeper fitted to PV351 machine on platinum mine

Pattern 326-085

Rig	Holes	Penetration (m/h)
PV149	16	14.06
PV141	27	13.46
PV143 (Hole Sweeper fitted)	4	22.63
PV144	20	20.60
Total Average		16.28 PV143 included in Average
Average		15.88 PV143 not included
% improvement with sweeper		42.54

Pattern 326-085

Rig	Holes	Penetration (m/h)
PV145	37	19.19
PV141	25	21.18
PV144	5	14.23
PV143 (Hole Sweeper fitted)	85	24.46
Total Average		22.32 PV143 included in Average
Average		19.57 PV143 not included
% improvement with sweeper		25.01

Pattern 326-050

Rig	Holes	Penetration (m/h)
PV143 (Hole Sweeper fitted)	55	27.95
PV144	19	18.97
PV145	49	22.07
Total Average		23.49 PV143 included in Average
Average		21.20 PV143 not included
% improvement with sweeper		31.81