021 855 963
021 998 762

Quarry Blast(copy)
Quarry Blast

Loading ANFO(copy)
Loading ANFO

Quarry Blast Profile(copy)
Blast Fragmentation

Quarry Blasting

Typical Quarry Blast Pattern
Pictured here is your typical Quarry Blast Pattern.
In most New Zealand situations three or four rows of blast holes are used and most blasts are to a "free face".
Drill hole angles range from vertical to 15 degrees in most situations.

ANFO Loading
As part of the simple blast hole loading process a pre-determined amount of ANFO is continuously poured into the blast hole and an inert rod is used to check the rising explosive column to ensure planned final stemming lengths are met.
ANFO is a very effective blasting agent however modern pricing has seen blended bulk explosive products preferred.

Blast Results
The use of Non Electric (Nonel) explosives for initiation in New Zealand provides a result at reasonably low cost.
With so many options available to the shot firer when using Electronic Initiation amazing results can be achieved.
From our experience if used wisely Electronic Detonators provide significant downstream cost savings to the site through improved fragmentation and dig-ability.

If you would like to speak to our experienced staff please don't hesitate to contact us... 


With 28 years’ experience, Inline’s highly qualified team of drilling & blasting specialists are safety conscious and know what it takes to get the job done.
Our managers and a large number of our operators have expertise in both drilling, blasting, RC Grade Control and wall stabilisation operations in either quarrying, coal/gold mining or construction operations.
We use the latest drilling, blasting & geotechnical equipment and technology, which is well maintained for reliability & efficiency at all times.


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P.O Box 413, Drury, Auckland
Ph 021 998 762 (Lance) or 021 855 963 (Glenn)