ODEX140 Eccentric Casing System with QL50 Shank

Casing Tube OD : 168mm
Casing Tube ID : 155.5mm
Guide device OD : 154.5mm
Casing Shoe ID : 140mm (Polit bit Dia)
Reamed Hole Dia. : 178.9mm
Guide Device Shank Type : QL50 DTH Hammer
Drill Pipe : 89mm

Product details

For small-hole sizes, rock drilling tools manufacturer ProDrill produces the ODEX Eccentric Overburden Drilling System, rock drill bits starting with the ODEX140 to suit 168mm O.D. casings. This two-piece system comprises the shank bit holder and the eccentric pilot bit that is secured in the bit holder by a double interlocking pin. This is easily removed to allow for bit sharpening or replacement. ProDrill ODEX overburden drilling systems are widely used in a variety of applications from well drilling and mini pilling to rock anchoring and site investigation.

ODEX140 casing system drawing

ODEX Series Technical Data Sheet

Type	Casing Tube		Reamed Hole Dia(mm)	Casing Shoe Inner Dia(mm)	DTH Hammer type	Drill Pipe(mm)
Type	OD(mm)	ID(mm)	Reamed Hole Dia(mm)	Casing Shoe Inner Dia(mm)	DTH Hammer type	Drill Pipe(mm)
ODEX80-P	108	93-99	118	87	COP34/DHD3.5	76
ODEX90-P	114	102-108	123	93	COP34/DHD3.5	76
ODEX100-P	127	114-117	136	102	COP34/DHD3.5	76
ODEX115-P	140	124-128	152	115	COP44/DHD340/SD4/QL40	76
ODEX120-P	146	130-134	154	121	COP54/DHD350/SD5/QL50	76
ODEX140-P	168	148-156	185	140	COP54/DHD350/SD5/QL50	89
ODEX150-P	178	158-166	195	150	COP54/DHD350/SD5/QL50	89
ODEX165-P	194	174-182	211	166	COP64/DHD360/SD6/QL60	114
ODEX190-P	219	199-207	237	193	COP64/DHD360/SD6/QL60	114
ODEX210-P	245	225-233	260	210	COP84/DHD380/SD8/QL80	114
ODEX240-P	273	253-257	308	241	COP84/DHD380/SD8/QL80	114
ODEX280-P	325	305-309	378	281	DHD112/DHD380	114

Application Range

It is suitable for drilling water wells, geothermal wells, short micro piles ,medium mini-type grouting hole of building, dam and harbor project.

1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly

2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in , allowing the drill bit assembly to be pulled up through the casing.

3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.

4. Drilling continues to the desired depth in the bedrock using a conventional drilling

Over Burden Casing Drilling System:

A set of overburden drilling system in reaming and retracting.

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PDF: For more details please watch PDF online:

ODEX140-P Eccentrix Overbu rden Casing System

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ODEX140 Eccentric Casing System with QL50 Shank