• Diameter for piercing storage units from the top or bottom :
    65 to 300 mm
  • Intervention depth : Up to 45m
  • Controlled from outside
  • All types of storage units
  • All types of materials
  • To be used before GIRONET
  • 2 versions 

– Pneumatic : for friable products (coal, bran, sugar, ash etc.)

– Hydraulic : for hard products(slag, cement, sulphate carbonate etc.)

  • TOTAL SAFETY : No human presence inside the silos and hoppers/Our teams comply with safety standards
  • SAVINGS : Production continues while intervention/100% storage capacity regained/material loss 
  • PERFORMANCE : Intervention above or under & on all types of materials/rapid & efficient intervention
  • ENVIRONMENT : Dry holing (no additives / Pollution free)
  • Visits & recommendations
  • Assembly & cleaning by us
  • Rapid intervention
  • Intervention by our specialised teams
  • Cleaning finalised with GIRONET




3 types of drills :


– Diameter 65 mm : pre-piercing
– Diameter 150 mm : Piercing
– Diameter 300 mm : Final piercing

CUSTOMER : One of the leaders in the chemical industry in Germany
PROBLEM : Bridging in a silo with a capacity of 9000 m3 (20 m high, 6m diameter). Approximately 15% of the material stored was clogged.
PRODUCT : Sodium carbonate
OBJECTIVE : To empty the silo in order to recover 100% of the storage capacity.
SOLUTION : – First step: Use of pneumatic POWERNET to create a chimney with a diameter of 350 mm.
– Second step: Intervention by pneumatic GIRONET and efficiently clean the whole of the silo
RESULT : The customer recovered all of its storage capacity. Production was not stopped and the intervention took place in complete safety and without human intervention inside the storage unit.
CUSTOMER : Sugar house in France
PROBLEM : Clogging by material of the 70 extractions of the silo. Loss of storage capacity: 1000 tonnes of material clogged in a 5000-tonne silo.
OBJECTIVE : Complete emptying of the silo
SOLUTION : – First step: Use of pneumatic POWERNET to evacuate the extractions
– Second step: Intervention by 2 pneumatic GIRONETs to evacuate the material
RESULT : Recovery of all of the storage capacity of the silo