A worker placing pink safety cones in the preparation for a blasting operation.

Hole Covers

The Hole Covers are used to reduce the number of lost blastholes as a result of collar collapses, water ingress and debris blockages.

With the cones:

  • Holes are kept free from debris
  • Hole covers are kept intact
  • Rainwater is kept out of blastholes


The Hole Covers are available for blasthole diameters ranging between 3 inch (76mm) to 12.25 inch (311mm).

How do the Hole Covers add value?

The Hole Covers are used throughout blast block preparation. Once blastholes are drilled, the cones are inserted into the holes to maintain hole collar integrity and to keep debris out.

Before priming and charging, the Hole Cover is removed temporarily, and re-inserted once priming and charging has been completed.

The cone is then left in the hole, preventing any debris or collar collapses before stemming takes place. When the blast team is ready to stem, the cones are removed and stored for future use.

A worker marking holes in the ground with cones for construction activities, such as drilling, blasting, or survey points.

BSC 01

Cone No 1 600x600 1

65mm (top) x 125mm (bottom) x 190mm (height)

BSC 02

Cover No 2 600x600 1
63mm (top) x 135mm (bottom) x 270mm (height)

BSC 03

Cover No 3 600x600 1

118mm (top) x 215mm (bottom) x 260mm (height)

BSC 04

Cover No 4 600x600 1

125mm (top) x 193mm (bottom) x 335mm (height)

BSC 05

Cover No 5 1 600x600 1

90mm (top) x 295mm (bottom) x 445mm (height)

BSC 06

Cover No 6 600x600 1

90mm (top) x 295mm (bottom) x 445mm (height)

BSC 07

Cover No 7 600x600 1

160mm (top) x 300mm (bottom) x 460mm (height)

BSC 08

Cover No 8 600x600 1

90mm (top) x 350mm (bottom) x2 00mm (height)

BSC 09

Cover No 9 600x600 1

90mm (top) x 500mm (bottom) x 260mm (height)

BSC 10

Cover No 10 600x600 1

115mm (top) x 311mm (bottom) x 1000mm (height)

Eugene

Eugene Preis

Managing Director at ERG Industrial

Love and special attention wins the game every day when it comes to drilling and blasting. Taking care of blastholes leads to exponential savings or gains downstream, and it is easier to do than what you may think.

#mining #miningindustry #drilling
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