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Terraced quarry benches ready for drilling and blasting

Complete drill & blast solutions

Prime Explosives provides an integrated drill and blast service, combining industry-leading products, specialised equipment, and experienced personnel to deliver safe, efficient, and reliable outcomes.

From blast design and drilling through to loading and initiation, we manage every stage of the process with a focus on safety, precision, and operational excellence.

Prime Explosives mobile mixing unit charging blast holes on site 01 · Blast Services
Blast Services

Designed, drilled & delivered with precision

Prime Explosives partners with quarries across New Zealand to provide a complete drill and blast solution encompassing blast design, drilling, loading, and initiation.

Successful blasting outcomes rely on the right equipment, experienced personnel, and seamless coordination between our blast crews and drill teams. By combining technical expertise with practical field experience, we deliver safe, efficient, and consistently well-fragmented blasts that maximise productivity and keep operations moving.

  • Blast design tailored to your geology and product mix.
  • Loading and firing by licensed, experienced shotfirers.
  • Coordinated drill & blast for optimal fragmentation.
Our Work

Blasts we've designed & fired

A selection of quarry blasts delivered by our crews across New Zealand.

Rock Commander tracked drill rig at a rock face 02 · Drill Services
Drill Services

Four rigs. Live diagnostics.

Prime Explosives currently has four drill rigs located across the North and South Islands.

We utilise new-generation equipment that provides diagnostic data on drill conditions and work performance — allowing our team to focus on delivering quality drill & blast services, accurately and efficiently.

North Island
Drill Fleet

Our North Island rig keeps quarries supplied and on schedule from the Bay of Plenty base.

RigRock Commander JD1400-E
Units1 Drill Rig
South Island
Drill Fleet

Three rigs cover South Island operations, with a mix of Rock Commander and Ingersoll Rand machines.

RigRock Commander JD1400-E
RigRock Commander JD1500-E
RigIngersoll Rand EC680
Units3 Drill Rigs

For drill enquiries, contact David Crighton on 021 724 029.

Prime Explosives technician working alongside a mobile mixing unit 03 · Technical Support
Technical Support

Expertise that lifts results

Behind every successful blast is the right technical know-how. Our team brings deep field experience to help you get the most from every pattern.

  • Blast optimisation and pattern advice to reduce cost per tonne.
  • Product selection matched to your geology and conditions.
  • On-site support from licensed, certified professionals.

Talk to Our Team

Prime Explosives technician reviewing an electronic blast design on a tablet at a quarry face 04 · Face Profiling & Blast Design
Face Profiling & Electronic Blast Design

Accurate blast planning through advanced profiling and digital design

Prime Explosives provides face profiling and electronic blast design to improve blast accuracy, safety, and overall performance. Using detailed face data, our team can optimise hole positioning, burden, spacing, and timing to suit individual site conditions.

Electronic blast design provides greater control over blast sequencing and fragmentation, helping reduce vibration, minimise flyrock risk, and improve overall blast efficiency.

  • Optimised hole positioning, burden, spacing and timing.
  • Greater control over blast sequencing and fragmentation.
  • Reduced vibration and minimised flyrock risk.

Talk to Our Team

Drilling rig
One-Stop Shop

Products, plant and people — all in one place

Let us manage your complete drill and blast requirements so you can focus on production.