Subscribe to our newsletter and get special prices

Catalogo Adriatech:

Custom Built Brochure:

Fishing Tools:



Eccentric System



The eccentric system is recomended when overburden situation must be solved.When using the eccentric system ,casing the hole is simultaneous with the drilling operation.Eccentric system is capable of drilling in formations such as tough overburdens, gravel ,sand incoherent rocks, boulders and clay.

Eccentric system features:

  • a guide device to fit all polpular brands of Down the Hole Hammers
  • a reamer that pivots around an offset shaft on the pilot bit and creates a hole larger than the casing diameter
  • a pilot bit

When the hole has been drilled and cased , the eramer is closed by reversing the direction of rotation in a single turn.The reamer and pilot bit can be retreacted from the cased hole

ModelO.D. CasingPilot Bit DiameterHole OpenerHammer Size
44.5″ – 115 mm.3.54″ – 90 mm.4.85″ – 123 mm.3″
55.56″ – 141,3 mm.4.53″ – 115 mm.5.95″ – 151 mm.4″
66.625″ – 168,3 mm.5.5″ – 140 mm.7.44″ – 189 mm.5″
77.625″ – 193,7 mm.6.52″ – 165 mm.8.32″ – 211 mm.6″
88.625″ – 219,0 mm.7.51″ – 190 mm.9.30″ – 236 mm.6″
1010.75″ – 273,0 mm.9.48″ – 240 mm.12.125″ – 308 mm.8″

E’ raccomandato l’utilizzo di tubi di rivestimento a saldare o filettati sinistri con spessore di 1/4″ (6.3 mm.)




Per maggiori informazioni sul prodotto vi preghiamo di compilare il form sottostante:




Adriatech progettazione ingegneristica controllo di qualità

Get in touch 

Location 

  • Adriatech srl
  • Via Prati 39
  • 65124 Pescara-(PE)
  • Italy

Tutti i loghi e marchi in questo sito sono di proprietà dei rispettivi proprietari. Tutto il resto del materiale è Copyright© 2022 Adriatech. E' vietata la riproduzione anche parziale o l'uso commerciale di quanto riprodotto sul sito Adriatech.

Other trademarks shown on this website belong to their owners. All other materials and descriptions are Adriatech Copyright© 2022.Reproduction or commercial use by other companies, even only partial, is expressly prohibited.


© 2020 Adriatech s.r.l.