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IMPACT HAMMER PRESENTATIONIMPACT HAMMER PRESENTATION

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Impact hammer typesImpact hammer types

► Mechanical drop hammersMechanical drop hammers► Steam and air hammersSteam and air hammers► Diesel hammersDiesel hammers► Hydraulic hammersHydraulic hammers

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Mechanical drop hammerMechanical drop hammer

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Mechanical drop hammerMechanical drop hammer

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Diesel hammerDiesel hammer

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Diesel hammersDiesel hammers

► Self contained unitSelf contained unit► Relatively low ram weight compared to Relatively low ram weight compared to

energyenergy► Impact energy depending on driving Impact energy depending on driving

resistanceresistance► Limited possibility to control impact energyLimited possibility to control impact energy► SmokeSmoke► Noise Noise ► VibrationVibration► Still most popular impact hammer in the Still most popular impact hammer in the

worldworld

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Hydraulic impact hammersHydraulic impact hammers

► Free fall hammerFree fall hammer

► Assisted hammer ( 100% free fall )Assisted hammer ( 100% free fall )

► Accelerated hammerAccelerated hammer

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Hydraulic impact hammersHydraulic impact hammers

► Impact energy steplessly adjustableImpact energy steplessly adjustable► Blow rate steplessly adjustableBlow rate steplessly adjustable► Operator can accurately control hammer Operator can accurately control hammer

operation and optimize it according to soil operation and optimize it according to soil conditions and pile sizeconditions and pile size

► No smokeNo smoke► Low noise levelLow noise level► Low vibrationLow vibration► Hydraulic hammer needs a power packHydraulic hammer needs a power pack

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Impact energyImpact energy

► POTENTIAL ENERGY (PE)POTENTIAL ENERGY (PE) PE = M x H x GPE = M x H x G

M = weight of ram block ( ton )M = weight of ram block ( ton ) H = drop height ( m )H = drop height ( m ) G = 9.81 m/sG = 9.81 m/s22

For exampleFor example ram block weight 5 tonram block weight 5 ton drop height 1.2 meterdrop height 1.2 meter PE = 5 x 1.2 x 9.81 = 59kNmPE = 5 x 1.2 x 9.81 = 59kNm

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Impact energyImpact energy

► KINETIC ENERGY ( KE )KINETIC ENERGY ( KE )

KE = ½ x M x VKE = ½ x M x V22

M = weight of ram blockM = weight of ram block

V = impact velocityV = impact velocity

For exampleFor example M= 5 tonM= 5 ton V= 4.85 m/s ( 1.2 meter drop height )V= 4.85 m/s ( 1.2 meter drop height ) KE = 59 kNmKE = 59 kNm

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Impact diagramsImpact diagrams

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Impact hammer efficiencyImpact hammer efficiency

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Impact hammer applicationsImpact hammer applications mounted on piling rig mounted on piling rig

► Type of leader > Guide clawsType of leader > Guide claws► Pile arms > Distance front leader to center Pile arms > Distance front leader to center

of hammerof hammer► Hydraulic system, oil flow, pressure, extra Hydraulic system, oil flow, pressure, extra

valvesvalves► Electric system > Control BoxElectric system > Control Box► Needed drive capsNeeded drive caps► Winch force > Single or double ropeWinch force > Single or double rope► Capacity tables, stabilityCapacity tables, stability

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Impact hammer applicationsImpact hammer applications free hanging free hanging

► Crane capacityCrane capacity► Type of pileType of pile► Needed drive capsNeeded drive caps► Pile sleevePile sleeve► Flying leaderFlying leader► Guide legsGuide legs► InclinationsInclinations► Power pack type > SuitabilityPower pack type > Suitability► Length of hydraulic hosesLength of hydraulic hoses► Length of electric cableLength of electric cable► Lifting beam, wire ropes, chains, chacklesLifting beam, wire ropes, chains, chackles► Protection cap for piston rodProtection cap for piston rod

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Hydraulic impact hammer Hydraulic impact hammer mounted on piling rigmounted on piling rig

JUNTTANJUNTTAN

ABI - BANUTABI - BANUT

WOLTMANWOLTMAN

LIEBHERRLIEBHERR

CASAGRANDECASAGRANDE

IMTIMT

BAUERBAUER

MAITMAIT

LLAMADALLAMADA

SOILMECSOILMEC

CMVCMV

Etc.Etc.

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Hydraulic hammer with pile Hydraulic hammer with pile sleevesleeve

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Hydraulic hammer in flying Hydraulic hammer in flying leaderleader

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Hydraulic impact hammer Hydraulic impact hammer with guide legswith guide legs

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Free hanging applicationsFree hanging applications

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ICE hydraulic impact hammerICE hydraulic impact hammer

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ICE hydraulic impact hammerICE hydraulic impact hammer

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ICE hydraulic impact ICE hydraulic impact hammershammers

► ICE 3S40 3 ton ram block 35 kNmICE 3S40 3 ton ram block 35 kNm► ICE 4S50 4 ton ram block 47 kNmICE 4S50 4 ton ram block 47 kNm► ICE 5S60 5 ton ram block 59 kNmICE 5S60 5 ton ram block 59 kNm► ICE 6S70 6 ton ram block 70 kNmICE 6S70 6 ton ram block 70 kNm► ICE 7S80 7 ton ram block 83 kNmICE 7S80 7 ton ram block 83 kNm► ICE 8S95 8 ton ram block 94 kNmICE 8S95 8 ton ram block 94 kNm► ICE 9S110 9 ton ram block 106 kNmICE 9S110 9 ton ram block 106 kNm► ICE 10S120 10 ton ram block 118 kNmICE 10S120 10 ton ram block 118 kNm

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CompetitorsCompetitors

► JUNTTAN ( FINLAND )JUNTTAN ( FINLAND )► BSP ( UK )BSP ( UK )► TWINWOOD (SINGAPORE)TWINWOOD (SINGAPORE)► PILEMER (KOREA)PILEMER (KOREA)► BRUCE (KOREA)BRUCE (KOREA)► ABI BANUT (GERMANY)ABI BANUT (GERMANY)► FAMBO (SWEDEN)FAMBO (SWEDEN)► ICE INC. (USA)ICE INC. (USA)► DIESEL HAMMERSDIESEL HAMMERS

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ICE hydraulic impact hammerICE hydraulic impact hammer

ARGUMENTSARGUMENTS► Round shape of the hammer makes it easier to Round shape of the hammer makes it easier to

position a pile into drive capposition a pile into drive cap► High centered energy through round ram block designHigh centered energy through round ram block design► Resized and extended bottom part of ram block to hit Resized and extended bottom part of ram block to hit

drive in middle of sound surpressed drive cap drive in middle of sound surpressed drive cap housing results low noise emissionhousing results low noise emission

► Hammer is totally covered to avoid hard cracks with Hammer is totally covered to avoid hard cracks with vital hammer parts like cylindervital hammer parts like cylinder

► Cylinder is mounted inside rubber damping plates in Cylinder is mounted inside rubber damping plates in special cylinder support bracket to eliminate hard special cylinder support bracket to eliminate hard vibrations going to cylinder seals. This results longer vibrations going to cylinder seals. This results longer life time to seals.life time to seals.

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ICE hydraulic impact hammerICE hydraulic impact hammer

MORE ARGUMENTSMORE ARGUMENTS► Easy dismounting of cylinder for maintenance Easy dismounting of cylinder for maintenance

and serviceand service► Cylinder is equipped with high speed seal kit Cylinder is equipped with high speed seal kit

for long life time.for long life time.► Interchangeable cylinder mounting brackets Interchangeable cylinder mounting brackets

between all hammers.between all hammers.► Easy access to hammer hydraulics and Easy access to hammer hydraulics and

accumulators.accumulators.► High efficiency due to NG 40 cartridge system.High efficiency due to NG 40 cartridge system.► Accurate and fixed dimensions of the ram Accurate and fixed dimensions of the ram

block with 8 vertical grooves for wearing block with 8 vertical grooves for wearing stripes.stripes.

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ICE hydraulic impact hammerICE hydraulic impact hammer

MORE ARGUMENTSMORE ARGUMENTS► Ram block made of St 52 steel. Hard hit.Ram block made of St 52 steel. Hard hit.► Ram block can rotate endlessly 360 degrees during Ram block can rotate endlessly 360 degrees during

piling and this results minimal wearing of main frame.piling and this results minimal wearing of main frame.► Easy to replace wearing stripes because no screwsEasy to replace wearing stripes because no screws► Accurate and step less adjustable drop height by Accurate and step less adjustable drop height by

measuring actual drop height inside hammer. Drop measuring actual drop height inside hammer. Drop height is not depending on oil flow, pressure or timers.height is not depending on oil flow, pressure or timers.

► Control Box gives exact information regarding actual Control Box gives exact information regarding actual drop height, dwell time, potential energy versus actual drop height, dwell time, potential energy versus actual kinetic energy, number of blows per minute, oil flow.kinetic energy, number of blows per minute, oil flow.