AutoStem Micro

Another World First

AutoStem Micro blasting cartridges are available in 17mm diameter suitable for an 20mm borehole and in 9mm suitable for a 10mm borehole. Power charges range from 3g – 40g making for the widest range of blasting products in the micro-cartridge size category.

We identified a need for a smaller cartridge that could be used without compressors, rock drills, diesel and air hoses.

The AutoStem Micro range was thus designed for applications where our customers prefer to use hand-held electric drills, rather than incurring the cost and labor in using compressors and rock drills.

The cost of rock/concrete breaking using the AutoStem Micro range are in some cases more than 90% cheaper per cubic meter than conventional breaker equipment.

The 9mm range of AutoStem Micro

  • Available in 3g, 6g and 9g charges
  • Dual Stemming
  • Electric initiation
  • Highly delicate blasting work
  • Max borehole size: 12mm

The 17mm range of AutoStem Micro

  • Available in 20g, 30g and 40g charges
  • Dual Stemming
  • Electric initiation
  • More significant blasting work
  • Max borehole size: 20mm

AutoStem Accessories

Electric ignitor (fuse head) and initiators

  • Highest quality fuse head for reliable ignition
  • Multiple wire lengths available (1.5m, 3.0m and 5.0m)
  • Electrical resistance: 0.5 ohm
  • Safety impulse: 8 mj per ohm
  • Initiation impulse: 16 mj per ohm
  • Safe electrical current: 0.45 A
  • Activating electricl current: 2.12A

741 model shot exploder

  • 650V Nominal Firing Voltage
  • 8.0J Nominal Output Energy
  • Firing mechanism: Spring return key switch
  • Up to 50 Cartridges in Series
  • Battery Type: Rechargeable
  • Capacity: Typically 1,000 firings
  • Charging: Charged from mains power (100-250 V, 47-65 Hz)
  • Charging time: 6 hours to full charge
  • Unit dimensions: 120mm x 82mm x 40mm
  • Unit mass: 0.55kg

1351 model shot exploder

  • 1350V Nominal Firing Voltage
  • 40.0J Nominal Output Energy
  • Firing mechanism: Spring return key switch
  • Up to 250 Cartridges in Series
  • Battery Type: Rechargeable NiCd
  • Capacity: Typically 500 firings
  • Charging: Charged from mains power (220V)
  • Charging time: 14 hours to full charge
  • Unit dimensions: 163mm x 125mm x 66mm
  • Unit mass: 1.9kg

Continuity tester

  • SABS approved and intrinsically safe
  • Light emitting diode to confirm continuity
  • Continuity indicated for up to 1,000 ohms
  • Battery life: 1 million testings
  • Unit dimensions: 72mm x 50mm x 23mm
  • Unit mass: 150g

Ohm meter

  • SABS approved for use in fiery mines
  • Liquid crystal display
  • Range of up to 2,000 ohms
  • Battery life: 200 hours of continuous testing
  • Unit dimensions: 102mm x 72mm x 32mm
  • Unit mass: 240g

AutoStem Cartridges meet international safety requirements

3 + 14 =

The World's safest and most advanced high performance blasting technology.

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