rst brochure english
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RST
SERIES RODS AND BITSRobust Standard Thread Series Product Overview
Copyright
2011BoartLongyear.Allrightsreserved.
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RST SERIES RODS AND BITS
Strength DefnedBoart Longyear has a long history of providing premium Rock Drill andBlast Drilling products for the most demanding conditions. This traditioncontinues with the introduction of the Robust Standard Thread (RST)Series percussive rods and bits with industry leading strength andpenetration rates. Boart Longyear has responded to industry demands forstronger, more versatile percussive rods and bits by developing the RSTSeries that incorporates a larger cross-sectional transition area as wellas an increased bit skirt length. This delivers improved impact efciencyfor faster penetration rates, increased rod tip-off resistance, and less holedeviation.
Superior Productivity and DesignThe RST Series rods incorporate a larger cross-sectional transitionarea for a nearly 45% increase in bending strength. The bit skirt is alsoextended for improved interface, making rod tip-off events less likely andreducing cost and downtime. The design of the RST Series results instraighter and truer holes with penetration rate increases of up to 20% ascompared to a competitive design offering.
Interchangeability
As an additional benet, the RST Series design allows forinterchangeability with standard rods and bits for improved exibility in theeld, unlike the competitive offerings which utilize unique thread designs.
Copyright2011BoartLongyear.Allrightsreserved
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LARGER CROSS-SECTIONAL
TRANSITION AREAIncreased rod rigidity/strengthwhen used in deviated applicationssuch as scaling. This results in
decreased rod tip-offs and increasedproductivity
UNIVERSAL THREADDesigned to be compatible withboth RST Series R32 and existingstandard R32 products
ExTENDED BIT SkIRTProvides straighter holes withreduced deviation
RETRACT OR STRAIGHT TRACk BIT
DESIGN (OpTIONAL)Provides a cleaner, straighter holeas well as easier bit removal invaried ground conditions
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pREMIUM TUNGSTEN CARBIDE BUTTONSDelivers extended drillingperformance and longer durabilityby increasing toughness and wear-
resistant properties
pREMIUM BODY STEEL MATERIALReduces face and body wearand provides uniform wearcharacteristics, improved buttonretention and efcient energytransfer
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COMpETITIVE COMpARISONSide-by-side eld testing with the competitiveoffering provided the following results:
RST Series Penetration Speed RST Series drill string was over 20% faster
than the competing standard string
Bit Meters Drilled RST Series bits drilled nearly 35% more
meters than the competing standard bit
Rod Meters Drilled
RST Series rods drilled on average nearly30% more meters than the competingstandard rod
*These results were based on dual jumbo side by side comparison test.
Actual results may vary depending upon rock conditions, equipment and otherfactors
Copyright 2011 Boart Longyear. All rights reserved.
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Feature Beneft RST Series
Competing
StandardProduct
Increased rod cross sectionalarea
Reduced rod Tip-offs andReduced hole deviation
Interchangeable with industrystandard R-type threadproles
Can be used in conjunction withstandard R type thread products if/when required
No
Extended bit skirt withadditional cross-sectionalarea
Improved alignment, reduced holedeviation and tip-off events
More efcient energy transfer
and faster penetration ratesIncreased productivity No
Increased bit and rod life Reduced consumable costs No
RST SERIES BENEfIT COMpARISON
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Copyright 2011 Boart Longyear. All rights reserved.
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Part Number Diameter Bit Thread End Thread Length M/M
220508 35H R32 R38 3090 mm M/M
220510 35H R32 HM38 3700 mm M/M
220503 35H R32 R38 3700 mm M/M
220502 35H R32 HM38 4310 mm M/M
220507 35H R32 R38 4310 mm M/M
220500 35H R32 HM38 4915 mm M/M
220501 35H R32 HM38 5525 mm M/M
ROD SIZES AVAILABLE
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Copyright 2011 Boart Longyear. All rights reserved.
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Part Number Diameter Thread Buttons Skirt Design110953 43 mm R32 BF 5/2 H Standard
140196 45 mm R32 BF 6/3 HStraight Trac &Retrac
140197 45 mm R32 BF 6/3 PStraight Trac &Retrac
140208 45 mm R32 BF 6/3 P Straight Trac
110956 45 mm R32 BF 6/3 P Standard
110958 45 mm R32 BF 5/2 H Standard
110959 48 mm R32 BF 6/3 P Standard
110960 51 mm R32 BF 6/2 H Standard110961 51 mm R32 BF 6/3 P Standard
BIT SIZES AVAILABLE
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GLOBAL ENGINEERINGBoart Longyears global engineering team delivers reliability, productivity and safety in a marketleading percussive consumables offering.
fINITE ELEMENT ANALYSIS (fEA)
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Pneumatic Rock DrillsProduction Equipment
Copyright20
11BoartLongyear.AllRightsReserved.
www.BoartLongyear.com ASX: BLY
ROCk DRILL AND BLAST DRILLING pRODUCTS
Rock Drill and Blast
Tooling
jan 2012
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Tel: +1 801 972 6430Fax: +1 801 977 3374
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