Blast Hole Drilling

 

Transporting Equipment

Inline Drilling have two transporting units used to transport its drill rigs from site to site.

For any of these services call Glenn on 021 855 963

Survey Mark Out

Prior to the drilling unit arriving on site drill patterns are marked out to ensure accurate distribution of drill holes to ensure optimum blast results are achieved for the client.

Collaring Drill Holes

Collaring of drill holes is vital component of the drill hole. Many quarries maintain sub drill in the range of 0.5m-1.0m to ensure optimum quarry floor condition and to reduce oversize generated from future blasts.
Collaring this pre conditioned ground ensures the drill hole remains open ready for explosives loading.

Hole Cups

Plastic "Hole Cups" are used to minimise any water intrusion or solid materials being washed into the drill hole during inclement weather. Hole cups also ensure quick identification of the drill holes and they maintain a smooth firm collar at the crest of the drilled hole.

Drilling

Typical drill hole diameters for Quarry drilling in New Zealand range from 76mm - 127mm.
Often drillers are required to drill tight narrow benches as "break in" type work as shown. Typically New Zealand Quarry's require 600-1000 l/m drilling per blast.   

The Finished Product

Inline Drilling are focused on providing the pre-determined size profile for any blast to ensure final aggregate product volumes are met along with financial efficiencies from the pit face to the consumer.

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