the vtthhee vvthe v----30 drilling solution30 drilling ... · v-30 users worldwide vvv-v---30...
TRANSCRIPT
![Page 1: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/1.jpg)
The VThe VThe VThe V----30 Drilling Solution30 Drilling Solution30 Drilling Solution30 Drilling Solution
![Page 2: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/2.jpg)
V-30 BLIND BORING APPLICATION
![Page 3: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/3.jpg)
VVVV----30303030
Blind RaisingBlind RaisingBlind RaisingBlind Raising
&&&&
Down ReamingDown ReamingDown ReamingDown Reaming
![Page 4: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/4.jpg)
Blind Up Reaming Maximum Blind Up Reaming Maximum Blind Up Reaming Maximum Blind Up Reaming Maximum capacity 35 meterscapacity 35 meterscapacity 35 meterscapacity 35 meters
Pushing VPushing VPushing VPushing V----30 Down Maximum 30 Down Maximum 30 Down Maximum 30 Down Maximum capacity 45 meterscapacity 45 meterscapacity 45 meterscapacity 45 meters
Pulling VPulling VPulling VPulling V----30 up Maximum 30 up Maximum 30 up Maximum 30 up Maximum capacity 75 meterscapacity 75 meterscapacity 75 meterscapacity 75 meters
![Page 5: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/5.jpg)
The V-30 Solution: Drilling an up
hole blind without upper
level access
In drilling position with cuttings diverter open
![Page 6: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/6.jpg)
CANADIAN MINE WITH V-30 APPLICATION
ProconProconProconProcon
New GoldNew GoldNew GoldNew Gold
CamecoCamecoCamecoCameco
Kidd Creek MineKidd Creek MineKidd Creek MineKidd Creek Mine
LacLacLacLac----desdesdesdes----Iles MineIles MineIles MineIles Mine
Vale MinesVale MinesVale MinesVale Mines
Boart Boart Boart Boart LongyearLongyearLongyearLongyear
GoldexGoldexGoldexGoldex MineMineMineMine
LarondeLarondeLarondeLaronde MineMineMineMine
LapaLapaLapaLapa MineMineMineMine
Mattagami MineMattagami MineMattagami MineMattagami Mine
BoartBoartBoartBoart LongyearLongyearLongyearLongyear
AuricoAuricoAuricoAurico MineMineMineMine
Westwood MineWestwood MineWestwood MineWestwood Mine
Stornoway MineStornoway MineStornoway MineStornoway Mine
NiobecNiobecNiobecNiobec MineMineMineMine
Major DrillingMajor DrillingMajor DrillingMajor Drilling
![Page 7: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/7.jpg)
International
Meters Down UnderMeters Down UnderMeters Down UnderMeters Down Under
YamanaYamanaYamanaYamana ---- ArgentinaArgentinaArgentinaArgentina
Goldcorp Cerro=Negro MineGoldcorp Cerro=Negro MineGoldcorp Cerro=Negro MineGoldcorp Cerro=Negro Mine
CayeliCayeliCayeliCayeli BakirBakirBakirBakir
BulyanhuluBulyanhuluBulyanhuluBulyanhulu Mine, TanzaniaMine, TanzaniaMine, TanzaniaMine, Tanzania
RandgoldRandgoldRandgoldRandgold ---- MaliMaliMaliMali
Cementation Cementation Cementation Cementation ---- GhanaGhanaGhanaGhana
MATSAMATSAMATSAMATSA
CaraibaCaraibaCaraibaCaraiba ---- BrazilBrazilBrazilBrazilAUMS AUMS AUMS AUMS ---- MaliMaliMaliMali
Capstone Capstone Capstone Capstone ---- MexicoMexicoMexicoMexico
AUMS, TanzaniaAUMS, TanzaniaAUMS, TanzaniaAUMS, Tanzania
HZL, IndiaHZL, IndiaHZL, IndiaHZL, India
JCHX, ChinaJCHX, ChinaJCHX, ChinaJCHX, China
PolymetalPolymetalPolymetalPolymetal, Russia, Russia, Russia, Russia
Norilsk, RussiaNorilsk, RussiaNorilsk, RussiaNorilsk, Russia
![Page 8: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/8.jpg)
V-30 Users Worldwide
VVVV----30 User30 User30 User30 User Type of HeadType of HeadType of HeadType of Head ApplicationApplicationApplicationApplication Rock Rock Rock Rock HardnessHardnessHardnessHardness
Boart Longyear Canada 2-RH V-30 Pushing
1-LH V-30 Pulling
Up slots 20 -35 m 25-30,000 PSI
AUMS Mining Contracting 2-RH V-30 Pushing
2-LH V-30 Pulling
Up slots 20 – 25 m
Down slots 20 - 25
20-25,000 PSI
20-25,000 PSI
Rio Tinto – Diavik Mine 1-RH V-30 Pushing Up slots 20 – 25m 15-20,000 PSI
Metres Down Under - Australia 3-LH V-30 Pulling Up slots 20 – 35m
Down slots 25 – 45m
25-35,000 PSI
MATSA- Spain 1-RH V-30 Pushing Up slots 20 – 25m 15-20,000 PSI
Golcorp - Argentina 3-RH V-30 Pushing Up slots 15 – 25m
Down Slots – 25m
15-20,000 PSI
Cayeli Bakir Isletmeleri - Turkey 2-LH V-30 Pulling Slots 15 – 20 m 10-15,000 PSI
Caraiba - Brasil 1-RH V-30 Pushing Up slots 20 – 25m 20-25,000 PSI
![Page 9: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/9.jpg)
V-30’s in MRI Contracting Division
CustomerCustomerCustomerCustomer Type of HeadType of HeadType of HeadType of Head ApplicationApplicationApplicationApplication Rock Rock Rock Rock HardnessHardnessHardnessHardness
Vale Inco – Mines 1-RH V-30 Pushing Up Slots 15 – 20 m 25-30,000 PSI
Agnico Eagle – Lapa Division 3 RH V-30 Pushing
1 LH V-30 Pulling
Up Slots 20 – 25 m
Down Slots 20 – 25 m
15 – 20,000 PSI
Agnico Eagle – LarondeDivision
1-RH V-30 Pushing Up Slots 25 – 30 m 25-30,000 PSI
Glencore – Kidd Creek Mine 1-RH V-30 Pushing Up Slots 25 – 30 m 25-30,000 PSI
Agnico Eagle – Goldex Mine 1-RH V-30 Pushing Down Slots 50 – 60 m 20-25,000 PSI
Glencore – Mattagami Mine 1-RH V-30 Pushing Up Slots 15 – 20 m 25-30,000 PSI
Newgold – New Afton Mine 1-RH V-30 Pulshing 18 m up slots for drawbell development
10-15,000 PSI
![Page 10: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/10.jpg)
30 inch raise hole through fractured ground
![Page 11: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/11.jpg)
MACHINES ROGER V30 HEAD PASSING THROUGH LEVELSThe V30 can be pulled successfully through adverse drilling conditions as pictured here on the left
The V30 can also be pulled or pushed through rock bolts
![Page 12: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/12.jpg)
REMOVALREMOVALREMOVALREMOVAL OF OF OF OF CUTTINGSCUTTINGSCUTTINGSCUTTINGS
� Cuttings normally don’t need to be removed with a scoop on a 25 –30m raise, provided:
• The cuttings can be washed away from the drill after every rod.
• Access to the drill can be maintained so that the drill can easily be moved once the hole has been completed.
� If access to the front of the drill is available with a scoop, we do like to remove the cuttings periodically.
![Page 13: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/13.jpg)
V-30 Operating CostsRock HardnessRock HardnessRock HardnessRock Hardness
10101010----15,000 PSI15,000 PSI15,000 PSI15,000 PSI 15151515----25,000 PSI25,000 PSI25,000 PSI25,000 PSI 25252525----35,000 PSI35,000 PSI35,000 PSI35,000 PSI
70 70 70 70 –––– 100 Kpa100 Kpa100 Kpa100 Kpa 100 100 100 100 –––– 170 Kpa170 Kpa170 Kpa170 Kpa 170 170 170 170 –––– 250 Kpa250 Kpa250 Kpa250 Kpa
Drilling Rate 5.0 m/hr 3.0 m/hr 1.5 m/hr
Operating CostsOperating CostsOperating CostsOperating Costs $/m $/m $/m $/m CDNCDNCDNCDN $/m $/m $/m $/m CDNCDNCDNCDN $/m $/m $/m $/m CDNCDNCDNCDN
Bits 70.43 $ 72,73 $ 187,80 $
Rods 5.41 $ 6,24 $ 12,16 $
Parts & Maintenance 34.32 $ 44,00 $ 114,39 $
Drilling 6’’ Pilot 4.45 $ 5,87 $ 13,34 $
Reaming 6’’ to 10’’ 14.13 $ 24.22 $ 42,39 $
Total Operating Total Operating Total Operating Total Operating CostsCostsCostsCosts
128.74 128.74 128.74 128.74 $$$$ 152,56 152,56 152,56 152,56 $$$$ 370,08 370,08 370,08 370,08 $$$$
VVVV----30 Sheduled 30 Sheduled 30 Sheduled 30 Sheduled OverhaulOverhaulOverhaulOverhaul
AfterAfterAfterAfter 1500 1500 1500 1500 metersmetersmetersmeters AfterAfterAfterAfter 1000 1000 1000 1000 metersmetersmetersmeters AfterAfterAfterAfter 800 800 800 800 metersmetersmetersmeters
V-30 Hammers 38.69 $ 58,04 $ 72,54 $
Overhaul 17,36 $ 33,76 $ 42,21 $
Overhaul CostOverhaul CostOverhaul CostOverhaul Cost 56.05 56.05 56.05 56.05 $$$$ 91,80 91,80 91,80 91,80 $$$$ 114,75$114,75$114,75$114,75$
Please note that the costs above do not include the capital costs of purchase of the V-30, nor do they include the cost of labour or costs related to the drill.
![Page 14: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/14.jpg)
V-30 Operating Parameters
Rock Rock Rock Rock HardnessHardnessHardnessHardness 10101010----15,000 PSI15,000 PSI15,000 PSI15,000 PSI
70 70 70 70 –––– 100 100 100 100 KpaKpaKpaKpa
15151515----25,000 PSI25,000 PSI25,000 PSI25,000 PSI
100 100 100 100 –––– 170 170 170 170 KpaKpaKpaKpa
25252525----35,000 PSI35,000 PSI35,000 PSI35,000 PSI
170 170 170 170 –––– 250 250 250 250 KpaKpaKpaKpa
Drilling RateDrilling RateDrilling RateDrilling Rate 5.0 m/hr5.0 m/hr5.0 m/hr5.0 m/hr 3.0 m/hr3.0 m/hr3.0 m/hr3.0 m/hr 1.5 m/hr1.5 m/hr1.5 m/hr1.5 m/hr
Rotation SpeedRotation SpeedRotation SpeedRotation Speed 22222222----26 RPM26 RPM26 RPM26 RPM 20 20 20 20 –––– 24 RPM24 RPM24 RPM24 RPM 15 15 15 15 ----20 RPM20 RPM20 RPM20 RPM
Rotation TorqueRotation TorqueRotation TorqueRotation Torque 1800 1800 1800 1800 –––– 2400 PSI2400 PSI2400 PSI2400 PSI 1800 1800 1800 1800 –––– 2400 PSI2400 PSI2400 PSI2400 PSI 1800 1800 1800 1800 –––– 2400 PSI2400 PSI2400 PSI2400 PSI
Feed Pressure Feed Pressure Feed Pressure Feed Pressure –––– Pushing UpPushing UpPushing UpPushing Up 1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI 1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI 1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI
Feed Pressure Feed Pressure Feed Pressure Feed Pressure –––– Pushing Pushing Pushing Pushing DownDownDownDown
300 to 500 PSI300 to 500 PSI300 to 500 PSI300 to 500 PSI 300 to 500 PSI300 to 500 PSI300 to 500 PSI300 to 500 PSI 300 to 500 PSI300 to 500 PSI300 to 500 PSI300 to 500 PSI
Feed Pressure Feed Pressure Feed Pressure Feed Pressure –––– Pulling UpPulling UpPulling UpPulling Up 1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI 1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI 1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI1500 to 2300 PSI
Hammer Upper Bolt TorqueHammer Upper Bolt TorqueHammer Upper Bolt TorqueHammer Upper Bolt Torque 1250 ft. lbs.1250 ft. lbs.1250 ft. lbs.1250 ft. lbs. 1250 ft. lbs.1250 ft. lbs.1250 ft. lbs.1250 ft. lbs. 1250 ft. lbs.1250 ft. lbs.1250 ft. lbs.1250 ft. lbs.
Hammer Lower Bolt TorqueHammer Lower Bolt TorqueHammer Lower Bolt TorqueHammer Lower Bolt Torque 260 ft. lbs.260 ft. lbs.260 ft. lbs.260 ft. lbs. 260 ft. lbs.260 ft. lbs.260 ft. lbs.260 ft. lbs. 260 ft. lbs.260 ft. lbs.260 ft. lbs.260 ft. lbs.
Hammer LubricationHammer LubricationHammer LubricationHammer Lubrication 5 liters/hr.5 liters/hr.5 liters/hr.5 liters/hr. 5 liters/hr.5 liters/hr.5 liters/hr.5 liters/hr. 5 liters/hr.5 liters/hr.5 liters/hr.5 liters/hr.
Centraliser Wear LimitCentraliser Wear LimitCentraliser Wear LimitCentraliser Wear Limit 8 inches8 inches8 inches8 inches 8 inches8 inches8 inches8 inches 8 inches8 inches8 inches8 inches
![Page 15: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/15.jpg)
Developing primary slots with VDeveloping primary slots with VDeveloping primary slots with VDeveloping primary slots with V----30 30 30 30 and and and and CubexCubexCubexCubex ITH Drill ITH Drill ITH Drill ITH Drill
� Primary slots can be developed using Machines Rogers’ V-30 boring head and a conventional ITH drill.
� The 762mm diameter V-30 hole provides the relief required into which to blast the helper holes required to achieve the required slot dimensions.
� A typical 25 meter slot can be achieved in 1 to 3 shots depending on drilling accuracy and blaster proficiency.
0,80M
2 3
0,80M
1
0,40m
1,8m
5 4
1,8m
� A typical 1,8M x 1,8M , 25 meter length slot can be completed in 8 to 9 shifts.
� The use of an ITH drill will ensure drilling accuracy over long hole lengths.
� The V-30 can be used to develop 35 meter slots when drilling up, and 45 meters when drilling down.
![Page 16: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/16.jpg)
Developing primary slots with VDeveloping primary slots with VDeveloping primary slots with VDeveloping primary slots with V----30 and 30 and 30 and 30 and cubexcubexcubexcubex ITH drill ITH drill ITH drill ITH drill
0,80M
2 3
0,80M
1
0,40m
1,8m
5 4
1,8m
� Setting up the ITH drill in the stope in preparation for V-30 drilling does not require any special installation such as concrete pad or slashing the back.
� An experienced ITH driller will readily learn and master V-30 drilling.
� Training the local personnel can be achieved easily in relatively short time frame.
� In addition to developing the slots, the ITH drill can be used for all other drilling requirements such as:� Production drilling� Service hole drilling� Paste fill hole drilling
![Page 17: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/17.jpg)
Advantages of utilising the V-30 boring head for slot
development
� Assurance that the slot will be successful ,with low risk of failure ,such as associated with conventionally blasted slots
� Ease of use and operator training relatively simple.
� Ability to use the ITH drill to accomplish other drilling requirements; production & service hole drilling.
� Speed by which the primary slots can be developed in comparison to other methods.
� Equipment setup and moving without special installations such as required for Raise Boring (concrete base) or Alimaks.
� Capacity to develop blind slots (drilling up) without the requirement for an upper level.
DisadvantagesDisadvantagesDisadvantagesDisadvantages� The method still requires the drilling and blasting
of relief holes in order to achieve the required slot dimensions.
![Page 18: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/18.jpg)
Slot development using Alimak method
• The development of slot raises using the Alimakmethod requires specialised equipment and an experienced labor force.
• The installation of Alimak equipment is complicated and labour intensive.
• Miners experienced in Alimak mining are difficult to find and/or train and require:
• Specialised training with Alimak installation.
• Experience using ‘Stopper’ drills.
• Experience in raise blasting.
• Completing a typical 2,0M x 2,0M, 25 meter length slot can require 20– 22 shifts depending on the type of installation chosen.
![Page 19: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/19.jpg)
Slot development using a conventional Raise Bore
• Slot development using a conventional raise boring machine involves sophisticated equipment requiring a specialised labour force.
• Raise bore machines are normally operated by a mining contractor with highly trained raise bore operators.
• Training a proficient raise bore operator is a lengthy process..
• Training the local work force on the use of this type of equipment is a long a repetitious
• The equipment is expensive and will be uniquely dedicated to the slot development. This equipment will not be used for other drilling requirements such as; production drilling.
• This type of equipment does not typically have the capacity of drilling blind up holes.
![Page 20: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/20.jpg)
Slot development using a conventional Raise Bore
• Development of a typical 1,8M x 1,8M, 25 meter in length slot using a 42’’ reamer can require 10 –12 shifts:
• Site preparation, installation of concrete base and equipment installation: 3 shifts.
• Drilling pilot hole and installing reamer head: 1 shift.
• Reaming to 42 inches: 3 shifts.• Drilling 4 ½’’ holes: 2 shifts.• Blasting: 2 shifts.• Demobilisation: 1 shift.
![Page 21: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/21.jpg)
SLOT DEVELOPMENT USINGCONVENTIONAL DRILLING AND BLASTING
• The development of a primary slot using this method requires an experienced labour force.
• The success of a slot using this method will first of all be driven by the accuracy of drilling.
• This method requires attentive drillers and the right choice of drilling equipment.
• If slots are longer than 15 meters serious consideration should be given to choosing an ITH drill.
• Hole deviation of more than 3% will increase the possibility of failure.
• Blasting the slot using this method will require an experienced blasting team.
• Blasting a slot is not an exact science, and the blaster will have to adjust his method and bring required changes after each blast.
1,8 M
1,8 M
1,8 M
![Page 22: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/22.jpg)
SLOT DEVELOPMENT USINGCONVENTIONAL DRILLING AND BLASTING
• A typical 1,8M x 1,8M, 25 meter slot will require 8 to 10 blasts, depending on the proficiency of the blaster.
• The total slot development will re quire 13 – 15 shifts, provided no major problems are encountered.
• A missed blast will require specific and detailed operating procedures in order to attempts to recover the slot.
• Standard operating procedures will need to be developed in order to minimise the recovery risk.
• When explosives remnants are suspected to be present, all drillngrequired to recover the slot will have to be carried out with remote drilling.
• In certain situations, a failed slot will have to be abandoned and re-drilled at another location.
1,8 M
1,8 M
1,8 M
![Page 23: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/23.jpg)
Comparison of Slot Development Methods – 25 m Slot
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwith VVVV----30303030
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwithAlimakAlimakAlimakAlimak
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwithRaiseRaiseRaiseRaise BoreBoreBoreBore
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwithConventionalConventionalConventionalConventional D & BD & BD & BD & B
V-30/Cubex ITH Alimak Raise Bore Elec/Hyd Drill
CharacteristicsCharacteristicsCharacteristicsCharacteristics• Quick & simple setup• Economical• Low training requirements• Multifunctional equipment• Capability of blind up &
down reaming• Stope delivered quickly• High success rateCost : $1,380.00/mCost : $1,380.00/mCost : $1,380.00/mCost : $1,380.00/m
CharacteristicsCharacteristicsCharacteristicsCharacteristics• Lengthy, expensive setup• Requires specialised labour
force• Solution slow and expensive• Lengthy training
requirements• High success rate
Cost: $2,200.00/mCost: $2,200.00/mCost: $2,200.00/mCost: $2,200.00/m
CharacteristicsCharacteristicsCharacteristicsCharacteristics• Expensive setup• High capital cost• Requires specialised labour
force• Unifunctional equipment• Difficult to drill up• High success rate
Cost: $1,680.00/mCost: $1,680.00/mCost: $1,680.00/mCost: $1,680.00/m
CharacteristicsCharacteristicsCharacteristicsCharacteristics• Quick & simple setup• Most economical solution• Requires experienced labour
force• Solution with highest failure
rate• Presents highest safety
concernsCost: $1,160.00/mCost: $1,160.00/mCost: $1,160.00/mCost: $1,160.00/m
Success rate: 98% Success Rate: 100% Success rate: 98% Success Rate: 80%
0,8 M
0,4M
1,8 M
0,8 M
1,8 M
Typical 1,8m x 1,8 meter slot - 115 mm relief holes
V-30 Slot - 30''
1,8 M
1,8 M
0,9 M
0,4M
1,8 M
0,9 M
1,8 M
Ouverture de 1,8m x 1,8 m slot - trou d'abatage de 115mm
Trou Alésé - 42''
![Page 24: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/24.jpg)
Comparison of Slot Development Methods – 25 m Slot
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwith VVVV----30303030
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwithAlimakAlimakAlimakAlimak
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwithRaiseRaiseRaiseRaise BoreBoreBoreBore
DevelopmentDevelopmentDevelopmentDevelopment withwithwithwithConventionalConventionalConventionalConventional D & BD & BD & BD & B
V-30/Cubex ITH Alimak Raise Bore Elec/Hyd Drill
Time (hrs)Installation: 4 Drill pilot 6 ½: 4Ream 6 ½ à 10’’: 4Ream to 30’’: 244 ½’’ Drilling 16Blasting: 16Demobilisation: 4Total 72Cost : $1,380.00/m
Time (hrs)Installation: 54Drilling & Blasting
- 8 to 10 , 2m cycles 72Demobilisation 40
Total 166Cost: $2,200.00/m
Time(hrs)Installation 24Drill Pilot 8Installation of head 4Reaming to 42’’ 2041/2’’ Drilling 16Blasting 16Demobilisation: 8 Total 96Cost: $1,680.00/m
Time (hrs)Installation: 44 ½’’ Drilling: 44Ream 4 ½ à 6’’: 12Blasting: 40Demobilisation: 4
Total 104Cost: $1,160.00/m
Success rate: 98% Success Rate: 100% Success rate: 98% Success Rate: 80%
0,8 M
0,4M
1,8 M
0,8 M
1,8 M
Typical 1,8m x 1,8 meter slot - 115 mm relief holes
V-30 Slot - 30''
1,8 M
1,8 M
0,9 M
0,4M
1,8 M
0,9 M
1,8 M
Ouverture de 1,8m x 1,8 m slot - trou d'abatage de 115mm
Trou Alésé - 42''
![Page 25: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/25.jpg)
![Page 26: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/26.jpg)
![Page 27: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/27.jpg)
V-30 Cuttings DiverterOpen
V-30 Cuttings Diverter Closed
![Page 28: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/28.jpg)
Orion DHHOrion DHHOrion DHHOrion DHH
Uphole drilling in drift
![Page 29: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/29.jpg)
Side viewSide viewSide viewSide view
![Page 30: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/30.jpg)
![Page 31: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/31.jpg)
On site training by experienced
driller/trainer
![Page 32: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/32.jpg)
From Contracts Carried out by Machines From Contracts Carried out by Machines From Contracts Carried out by Machines From Contracts Carried out by Machines Roger International Contracts DivisionRoger International Contracts DivisionRoger International Contracts DivisionRoger International Contracts Division
Notes:
1) Cost Plus Hours is time (man hours) charged to the mine due to delays that prevented drilling such as; lack of air or water, no electricity, poor ventilation, unsafe workplace etc.
2) Cost Plus Hours were also used to calculate Percentage Utilisation.
Case Studies of the V-30 / ITH Drilling Solution
![Page 33: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/33.jpg)
Case Study1: Hecla Mine
• ApplicationApplicationApplicationApplication :
• V-30 Blind Boring – slot drilling up
• Production drilling
• Client Client Client Client : Hecla Mine
• EquipmentEquipmentEquipmentEquipment usedusedusedused ::::
• CubexCubexCubexCubex : 1 - ITH Drill : Megamatic 5200 Booster Compressor: Cubex R-110
• MACHINES ROGERMACHINES ROGERMACHINES ROGERMACHINES ROGER : 1 - V-30 RH Blind Boring Head
![Page 34: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/34.jpg)
Case Study No 1: Hecla MineParametersParametersParametersParameters ::::
� Diameter of pilot hole : 6 ½” ( 165 mm)
� Diameter of reamed hole : 10” (254 mm)
� Diameter of V-30 raise : 30” ( 762 mm )
� Average length of V-30 raise : 15.5 mts
� Access drift diameter : 4.2 x 4.0mts
� Air requirement : 1400 scfm
� Average drilling pressure : 240 psi
� Number of shifts per day: 2 – 7 days
� Effective hours worked per shift: 9,5
� Total available hours: 12 300 hrs per year
� Percentage Utilisation: 51.8%
� Percentage Availability 93%
Annual PerformanceAnnual PerformanceAnnual PerformanceAnnual Performance
� V-30 Up hole drilling: 1270 meters
� 250mm service hole drilling: 650 meters
� 165mm Service hole drilling: 950 meters
� Cost Plus hours: 6050
![Page 35: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/35.jpg)
Case Study 2: Glencore Div 1
• Application : Application : Application : Application :
• V-30 Blind Boring – Up hole slot drilling
• Client : Client : Client : Client : Glencore Division 1
• EquipmentEquipmentEquipmentEquipment usedusedusedused ::::
• CUBEXCUBEXCUBEXCUBEX : 1 - ITH Drills : Megamatic 6200 1 - Booster Compressor: Cubex R-110
• MACHINES ROGERMACHINES ROGERMACHINES ROGERMACHINES ROGER : 1 - V-30 RH Blind Boring Heads
![Page 36: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/36.jpg)
Case Study 2: Glencore Div 1ParametersParametersParametersParameters ::::
� Diameter of pilot hole : 6 ½” ( 165 mm)
� Diameter of reamed hole : 10” (254 mm)
� Diameter of V-30 raise : 30” ( 762 mm )
� Average length of V-30 raise : 25 mts
� Access drift diameter : 4.5 x 4.5 mts
� Air requirement : 1400 scfm
� Average drilling pressure : 180 - 200 psi
� Number of shifts: 1 – 7 days
� Effective hours worked per shift: 10 hrs
� Total hours available: 7550 hrs per year
� Percentage utilisation: 73.5 %
� Percentage Availability 90 %
Annual PerformanceAnnual PerformanceAnnual PerformanceAnnual Performance� V-30 Up hole drilling: 1800 meters
� 165mm Production drilling: 1200 meters
� 115mm Production drilling: 700 meters
� Cost Plus hours: 2000 hrs
![Page 37: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/37.jpg)
Case Study 3: Agnico Eagle Div 2
• Application : Application : Application : Application :
• V-30 Blind Boring – Slot drilling up & down
• Production Drilling
• Client : Client : Client : Client : Agnico Eagle Div 2
• Equipment Equipment Equipment Equipment usedusedusedused ::::
• CUBEXCUBEXCUBEXCUBEX : 4 - ITH Drills : Megamatic 6200 & 52004 - Booster Compressor: Cubex R-110 & R-55
• MACHINES ROGERMACHINES ROGERMACHINES ROGERMACHINES ROGER : 2 - V-30 RH Blind Boring Heads and 1 Conventionnal LH PullingHead
![Page 38: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/38.jpg)
Case Study 3: Agnico Eagle Div 2ParametersParametersParametersParameters ::::
� Diameter of pilot hole : 6 ½” ( 165 mm)
� Diameter of reamed hole : 10” (254 mm)
� Diameter of V-30 raise : 30” ( 762 mm )
� Average length of V-30 raise : 26 mts
� Access drift diameter : 4.2 x 4.5 mts
� Air requirement : 1400 scfm
� Average drilling pressure : 220 psi
� Number of shifts: 2
� Effective hours worked per shift: 10
� Total hours available: 56,000 hrs per year
� Percentage utilisation: 75.9%
� Percentage Availability: 92 %
Annual PerformanceAnnual PerformanceAnnual PerformanceAnnual Performance
� V-30 Up hole drilling: 2400 meters
� 165mm Production drilling: 155 meters
� 115mm Production drilling: 38495 meters
� Cost Plus hours: 13495 hrs
![Page 39: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/39.jpg)
Case Study 4: Agnico Eagle – Div 3
• Application : Application : Application : Application :
• V-30 Blind Boring – Slot drilling Up
• Production Drilling
• Client : Client : Client : Client : AgnicoAgnicoAgnicoAgnico EagleEagleEagleEagle –––– DivisionDivisionDivisionDivision 3333
• EquipmentEquipmentEquipmentEquipment usedusedusedused ::::
• CUBEXCUBEXCUBEXCUBEX : 1 - ITH Drill : Megamatic 6200 1 - Booster Compressor: Cubex R-110
• 1 1 1 1 ---- MACHINES ROGERMACHINES ROGERMACHINES ROGERMACHINES ROGER : 1 - V-30 RH Blind Boring Head
![Page 40: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/40.jpg)
Case Study 4: Agnico Eagle – Div 3ParametersParametersParametersParameters ::::
� Diameter of pilot hole : 6 ½” ( 165 mm)
� Diameter of reamed hole : 10” (254 mm)
� Diameter of V-30 raise : 30” ( 762 mm )
� Average length of V-30 raise : 35 mts
� Access drift diameter : 4.2 x 4.5 mts
� Air requirement : 1 400 scfm
� Average drilling pressure : 200 - 220 psi
� Number of shifts: 2 – 7 days
� Effective hours worked per shift: 9.5 or 11.5
� Total hours available: 4,200 hrs per year
� Percentage utilisation: 51 %
� Percentage Availability: 93 %
AnnualAnnualAnnualAnnual PerformancePerformancePerformancePerformance
� V-30 drilling: 270 meters
� 165mm Production drilling: 10400 meters
� 115mm Production drilling: 5700 meters
� Cost Plus hours: 2055
![Page 41: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/41.jpg)
Case Study 5: Agnico Eagle – Div 1
• Application : Application : Application : Application :
• V-30 Blind Boring – Slot drilling
• Production Drilling
• Service Hole Drilling
• Client : Client : Client : Client : AgnicoAgnicoAgnicoAgnico EagleEagleEagleEagle –––– DivisionDivisionDivisionDivision 1111
• EquipmentEquipmentEquipmentEquipment usedusedusedused ::::
• CUBEXCUBEXCUBEXCUBEX : 1 - ITH Drill : Megamatic 6200 1 - Booster Compressor: Cubex R-110
• 1 1 1 1 ---- MACHINES ROGERMACHINES ROGERMACHINES ROGERMACHINES ROGER : 1 - V-30 RH Blind Boring Head
![Page 42: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/42.jpg)
Case Study 5: Agnico Eagle – Div 1ParametersParametersParametersParameters ::::
� Diameter of pilot hole : 6 ½” ( 165 mm)
� Diameter of reamed hole : 10” (254 mm)
� Diameter of V-30 raise : 30” ( 762 mm )
� Average length of V-30 raise : 25 mts
� Access drift diameter : 4.2 x 4.5 mts
� Air requirement : 1 400 scfm
� Average drilling pressure : 200 - 220 psi
� Number of shifts: 2 – 7 days
� Effective hours worked per shift: 9.5
� Total hours available: 6500 hrs per year
� Percentage utilisation: 49 %
� Percentage Availability: 81 %
AnnualAnnualAnnualAnnual PerformancePerformancePerformancePerformance
� V-30 drilling: 570 meters
� 250 mm Service hole drilling: 3400 meters
� 165mm Service hole or Production drilling:14400 meters
� 115mm Service hole or Production drilling: 4800 meters
� Cost Plus hours: 3260 hrs
![Page 43: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/43.jpg)
Case Study 6: Richmont Mine
• Application : Application : Application : Application :
• V-30 Slot drilling
• Service Hole Drilling
• Client : Client : Client : Client : RichmontRichmontRichmontRichmont MinMinMinMineeee
• EquipmentEquipmentEquipmentEquipment usedusedusedused ::::
• CUBEXCUBEXCUBEXCUBEX : 1 - ITH Drill : Megamatic 6200 1 - Booster Compressor: Cubex R-110
• 1 1 1 1 ---- MACHINES ROGERMACHINES ROGERMACHINES ROGERMACHINES ROGER : 1 - V-30 RH Blind Boring Head
![Page 44: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/44.jpg)
Case Study 6: Richmont MineParametersParametersParametersParameters ::::
� Diameter of pilot hole : 6 ½” ( 165 mm)
� Diameter of reamed hole : 10” (254 mm)
� Diameter of V-30 raise : 30” ( 762 mm )
� Average length of V-30 raise : 16 mts
� Access drift diameter : 4.2 x 4.5 mts
� Air requirement : 1 400 scfm
� Average drilling pressure : 180 - 200 psi
� Number of shifts: 2 – 7 days
� Effective hours worked per shift: 9.5
� Total hours available: 4,800 hrs per year
� Percentage utilisation: 63 %
� Percentage Availability: 80 %
AnnualAnnualAnnualAnnual PerformancePerformancePerformancePerformance
� V-30 drilling: 460 meters
� 300mm Service hole drilling: 700 meters
� 250mm Service hole drilling: 1000 meters
� 165mm Service hole drilling: 1700 meters
� Cost Plus hours: 1770 hrs
![Page 45: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/45.jpg)
Typical V-30 Slot Design 1,8M x 1,8M (100mm – 115mm corner holes)
0,8 M
0,4M
1,8 M
0,8 M
1,8 M
![Page 46: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/46.jpg)
Typical V-30 Slot Design 3,0M x 3,0M (100mm – 115mm holes)
3M
3M
V-30
00,76M
![Page 47: The VTThhee VVThe V----30 Drilling Solution30 Drilling ... · V-30 Users Worldwide VVV-V---30 User3300 UUsseerr30 User Type of HeadType of Head Application AApppplliiccaattiioonnApplication](https://reader034.vdocuments.us/reader034/viewer/2022042420/5f3753ca3d41802ea015f92b/html5/thumbnails/47.jpg)