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Krupp hydraulic hammers

3Krupp hydraulic hammers:What they are and what they can do

1963 –Krupp submittedthe first ever patent appli-cation for a hydraulic per-cussion mechanism.

1967 – At the Hanover FairKrupp introduced theworld’s first machine-oper-ated hydraulic hammer –the HM 400.

1985 – Krupp launched thefirst silenced and vibrationdamped system of hydrau-

lic hammers under thename "Vibrosilenced",finally providing genuinerelief for both man andmachine.

1995 – Further improve-ment and developmentresulted in the "Vibro-silenced Plus" system foreven more effective silenc-ing and vibration damping.

1998 – The "Marathon®"wear protection system,for improving hammeravailability, was launched.

In 2000 Krupp Berco Bau-technik is introducing twoseries of high-performancehydraulic hammers –the "Eco line" and the"Marathon® line".

In 2002, Krupp BercoBautechnik was taken overby the Atlas Copco group.

As a leading innovator inthe development ofhydraulic hammers, thecompany has been settingstandards since 1963.

Today’s Atlas CopcoConstruction Tools offers:

• Highly productivehydraulic hammers

• Practice-oriented con-sulting on all aspects ofthe hammer

HM 400 with special holder at workin a quarry – first put to work in1968 and in operation until 1987,this fully operational veteran is nowon display at the German Museumin Munich.

2

3

4

6

5

7

8

9

10

12

11

1

Technology for maximum economy4

features of Krupp’s hydrau-lic hammers are illustratedin this cross-section of anHM 2500 Marathon®. It isdetails such as these thatmake our hydraulic ham-mers unbeatable and giveyou the edge over yourcompetitors.

1 Higher performance

AutoControl optimizes running charac-teristics, facilitates energy recovery andsimplifies the handling of the hammer.

2 Ready for special applications

Standard port for forced ventilation,e.g. for underwater jobs.

3 Maintenance-friendly

Service opening provides direct accessfor routine maintenance; the percus-sion mechanism can be easilyremoved from the hammer box.

4 Energy accumulation and safe start-up

Due to integrated gas piston accumu-lator in the cylinder cover

5 Automatic lubrication

With the ContiLube® II mounteddirectly on the hammer box; verysimple handling and highly economi-cal use of lubricant.

6 Easy on carrier

The elastic suspension of the percus-sion mechanism in pre-stressed elas-tic damping elements prevents dam-age to the carrier.

7 Low noise emission levels

No acoustic bridges between percus-sion mechanism and hammer box.Additional silencing optional.

8 Low recoil action reduces strain on

man and machine

Due to long piston stroke.

9 Optimum transfer of percussive energy

Due to piston and working tool havingvirtually the same diameter.

10 Long service life of hammer box

Due to use of highly wear-resistantmaterials for high-stress zones.

11 Long service life of wear bushings

Due to DustProtector facility for effec-tive protection against dust penetration.

12 Reliable working tools

By precise coordination of design,materials and heat treatment. In-house production!

Decades of experience andthe latest innovations havegone into the design ofKrupp’s hydraulic hammers,the following being justsome of the features thatensure maximum econo-my:

• Universal application• Long service life• High performance• High availability• Easy maintenance• Reduced strain

on carriers

Many of the care-fully developed,practice-proven

Vibrosilenced PlusVibrosilenced

1

710

4 2

89

8085

9095 dB(A)

Hammer

100

1

2

3

4

5

89

Hammer10 7

6

5Silencing and vibration damping for all Krupp hydraulic hammers

The diagram showsthe results of mea-surements taken allthe way around ahydraulic hammer withthe two different carriersystems. The differencesspeak for themselves.

The impact of these devel-opments is apparent onbuilding sites everywhere.To prevent noise emis-sions causing long termharm to individuals, theymust remain at the mini-mum distance at whichthe noise level is below 85dB(A).

At the 1995 Bauma show,Krupp introduced "Vibro-silenced Plus", a furtherimprovement on the Vibro-silenced" system. By opti-mizing the shape of thehammer box and sealingall openings, a furtherreduction in noise emis-sions of approx. 8 dB(A)was achieved, i.e. per-ceived noise levels wereonce again cut by half.

Krupp launched the firstsilenced and vibrationdamped hydraulic hammersback in 1985 under thename "Vibrosilenced".

This involved the use ofnon-metallic suspensionarrangements to isolatethe percussion mechanismacoustically from the ex-ternal carrier system. Thesearrangements preventednoise and vibrations ema-nating from the percussionmechanism from beingtransferred by the carriersystem to the carrier andinto the wider environment."Vibrosilenced" achieved areduction in noise emis-sions of approx. 8 dB(A) incomparison to the older,conventional carriersystems.

All Krupp hydraulic hammers are supplied with"Vibrosilenced" carrier systems – including both thelightweight series hammers with hammer holder aswell as models with a hammer box.

With Krupp’s hydraulichammers this distance is asfollows:

• Pre-1985 70 m• "Vibrosilenced" 31 m• "Vibrosilenced Plus" 10 m

A variety of options tomeet customer require-ments are available for"Eco line" hammers (seepages 10 and 11).

6 "Marathon® line" hammers: wear protection system for high availability

AutoControl

Precise piston control and

automatic stroke switch-

ing

A control system foradjusting the impact rateand force to a variety ofoperating conditions. (Application for DBP19636659 pending)

DustProtector

Dust protection facility

mounted on the hydraulic

hammer

Two independently operat-ing strippers prevent thepenetration of coarse dirtand fine dust particles intothe lower hammer part. (DBP 19628815 received)

ContiLube® II

Automatic lubrication unit

mounted directly on the

hydraulic hammer

Mounted directly on thehammer, this unit ensuresreliable, automatic lubrica-tion of the working tool’swear bushings.

MARATHON

®

Note:Krupp hydraulic hammerswith AutoControl switchautomatically to a higherimpact rate with reducedimpact force when called for by operatingconditions. For applicationsrequiring only a highimpact rate, AutoControlcan be set accordingly.Prevents damage!

All the "Marathon® line" hammers areequipped with the "Marathon®" wear pro-tection system developed by Krupp. Thissystem prevents excessive wear on thehammer, resulting from:• dirt penetration• inadequate lubrication• excessive material strain during use.

The system consists of the followingthree components:

= Uninterrupted production

Simple handling

Minimal wear

Effects

AutoControl DustProtector ContiLube® II

Smooth running

Energy recovery andhigh efficiency

Reduced strain on equipment

Highly adaptable

= Greater productivity

Minimal wear of lower hammer part

Optimal lubrication

Improved service lifeof wear parts

Maintenance-friendly

= High availability

Non-stop use

Flexible use of hammer

Hammers to suit all requirements8

Krupp has the right hy-draulic hammer for a widerange of applications, asshown in the table.

Moreover, our equipmentis designed such that spe-cial jobs can generallyalso be handled withoutthe need for extensiveconversion or accessories.

For underwater applica-

tions, additional equip-ment such as compressedair lines and safety circuitsis essential to ensure safe,damage-free operation.The corresponding con-version equipment isavailable as an optionalextra.

For tunneling applications,

the "Marathon® line"hydraulic hammers withDustProtector permit unin-terrupted operation, evenin extreme dust conditions.

Use in high-temperature

applications, such as insteel or aluminum works,does not require any retro-fitting. Where dust is ex-cessive the hammer canbe protected with a jet ofair.

When working underwateror in protected drinkingwater areas, Krupp hydrau-lic hammers can also beoperated using environ-mentally compatible fluidsand lubricants.

HM 720-HM 4000 S

Field Type of application Hammer models

General construction work

Tearing up concrete and asphaltroad surfacesLandscape gardening and landscapingTrenchwork for utilities, foundation work

HM 60 -HM 780S

HM 60 -HM 350

HM 60 -HM 4000 S

Demolition

Masonry and non-reinforced concrete

Reinforced concrete

Heavily reinforced concrete, demo-lition of power stations and bridges

HM 60 -HM 780 S

HM 90 -HM 780 S

HM 960-HM 4000 S

Rock breaking

Quarrying

Breaking oversizesBench levelingTrenchworkFoundation work

HM 960-HM 4000 S

Tunneling, mining

Clearing the roof

Bench leveling

Tunnel driving

HM 90 -HM 780 S

HM 90 -HM 4000 S

HM 780 SHM 1000 S-HM 4000 S

High-temperature applications

Removing encrustations

Breaking out ladles and molds

Breaking up slag

HM 140 -HM 780 S

HM 90 -HM 780 S

HM 960-HM 4000 S

Underwaterapplications

DemolitionDeepening shipping channels

HM 960-HM 4000 S

9The right combination for high productivity

The right hammer for

every carrier

The chart shows how tomatch individual hammermodels to carrier serviceweights, i.e. the weight ofthe respective standardexcavator. The top priorityhere is ensuring the stabil-ity of the carrier with thetool attached.The delivery of thehydraulic pumps is then ofdecisive importance forthe optimal operation ofthe hydraulic hammer.

Performance figures for

secondary rock breaking

The chart shows guidelinefigures for hydraulic ham-mer performance in sec-ondary rock breaking.

Performance figures for

demolition

The chart shows perfor-mance ranges for thedemolition of reinforcedand non-reinforced con-crete structures. Theguideline figures indicatedcan vary significantlydepending on operatingand environmental condi-tions. The performancedata are based on practi-cal results.Factors influencing workrates include• the type of material

being broken• the degree of reduction

required• the condition of the car-

rier and hammer • the skill/experience of

the operator

Service weight of carrier in tonnes

1 2 4 6 8 10 15 20 25 30 35 40 45 50 55 60 65 70 75

HM 60

HM 90

HM 140

HM 170

HM 230

HM 350

HM 580

HM 720

HM 780 S

HM 960

HM 1000 S

HM 1500 S

HM 2300 S

HM 2600 S

HM 4000 S ▼

HM 3000 S ▼

Recommended combinations

HM 4000 S

Model Secondary breaking performance in t/h

HM 720 50 -150

HM 780 S 60 -190

HM 1000 S 80 -250

HM 1500 S 110 -330

HM 2300 S 140 -420

HM 2600 S 180 -540

230 -680

HM 3000 S 200 -610

0These figures are intended as a guideline and are not binding t /h

100 200 400 500 600 700300

Oversizes

HM 90

0These figures are intended as a guideline and are not binding m3 /8h

100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600

Model Performance figures in cubic meters per 8-hour shift

non-reinforced concretereinforced concrete

HM 4000 S

HM 2600 S

HM 2300 S

HM 1500 S

HM 1000 S210 -385

140 -255

HM 960160 -280

110 -190

HM 780 S160 -280

110 -190

HM 720105 -210

70 -140

HM 580

HM 350

65 -13045 -90

45 -11030 -75

HM 23030 -60

20 -40

HM 17015 -42

10 -28

HM 1408 -23

4 -14

8 -164 -9

HM 60 5 -11

250 -490170 -330

320 -650210 -430

390 -850260 -565

600 -1500400 -1000

HM 3000 S490 -1200

320 -810

"Eco line" hydraulic hammersLightweight series

10

1) Weights apply to standard carriers only. Any variances must be agreed with our after-salesservice department and/or the carrier manufacturer prior to attachment.

Carrier system: "Vibrosilenced" Additional noise protection: "Vibrosilenced Plus"

hammer box as standard for HM 350, otherwise optionalContiLube® II automatic lubrication unit as an optionS=StartSelect: choice of “AutoStart” or “AutoStop”

Carrier system: "Vibrosilenced" hammer holder

Carrier system: "Vibrosilenced"

hammer box

Add. noise protection:"Vibrosilenced Plus" as standard


"Eco line" hydraulic hammersMedium series

2) Hammer and hammer box with standard adapter plus workingtool.

2) Hammer and hammer box plus working tool and medium-sized adapter.

Specifications that speak for themselves

HM 170

500

-

120-140

245

Eco line

Useful length of tool mm

Stroke-length switching

Operating pressure bar

Service weight2) kg

Carrier weight class1) t

Oil flow rate l /min

Impact rate bpm

HM 60

1-3 1.5-4 2.5-9 5-12

75 130 210

15-35 25-45 35-55 50-75

90-120 90-130 120-140

570-1700 500-1150 500-1150 500-1000

- - -

48 62 65 75

340 435 495

HM 90 HM 140

Working tool diameter mm

HM 230

415

-

120-150

380

HM 60

1.2-3 1.9-4.4 2.5-9 5-12 6-13

100 165 245 300

15-35 25-45 35-55 50-75 60-90

90-120 90-130 120-140 120-140

570-1700 500-1150 500-1150 500-1000 520-1000

- - - -

48 62 65 75 80

300 395 450 455

HM 90 HM 140 HM 170

Eco line

Service weight2) kg

Operating pressure



HM 780 S

605

AutoControl

160-180

1200

560

-

120-180

900

HM 580


Oil flow rate

12

Impact rate

l /min

bpm

bar

HM 350

8-15 15-24 15-26

550 1200

60-100 90-120 100-140

130-160 140-170

440-1000350-600700-1200

340-680

- manual

90 115 120

450

12-18

70-120

370-820

100

615

HM 720


11


Carrier system: "Vibrosilenced" hammer box

Additional noise protection: "Vibrosilenced Plus" as standard on HM 4000, otherwise optional

Standard equipment: AutoControl automatic stroke-length switchingDustProtector dust protection facilityContiLube® II automatic lubrication unitS=StartSelect: choice of “AutoStart” or “AutoStop”

"Eco line" hydraulic hammersHeavy-duty series

"Marathon® line" hydraulic hammersMedium and heavy-duty series


Carrier system: "Vibrosilenced" Additional noise protection: "Vibrosilenced Plus" as an optionhammer box ContiLube® II automatic lubrication unit as an option

S=StartSelect: choice of “AutoStart” or “AutoStop”



Eco line

Service weight2) kg

Operating pressure




Oil flow rate

12

Impact rate

l /min

bpm

bar


Marathon® line

Service weight2) kg

Operating pressure bar




Oil flow rate l /min

Impact rate bpm


HM 2600 S

820

AutoControl

160-180

4200

795

AutoControl

160-180

3000

HM 2300 S

650

AutoControl

160-180

1700

HM 1000 SHM 960

18-34 26-40 32-50

1600 2200

130-170 140-180 210-270

120-140 160-180

360-540720-960

280-550 280-540

manual AutoControl

135 150 165

615

18-34

130-160

320-600

140

650

HM 1500 S

42-75

250-320

270-530

180

HM 3000 S

905

AutoControl

160-180

5800

55-100

310-390

280-460

200

HM 4000 S

975

AutoControl

160-180

7000

65-120

360-450

280-450

210

HM 4000 S

885

AutoControl

160-180

7000

HM 780 S

15-26

1200

100-140

160-180

340-680

AutoControl

120

580

HM 1000 S

18-34

1700

130-160

160-180

320-600

AutoControl

140

625

HM 1500 S

26-40

2200

140-180

160-180

280-550

AutoControl

150

605

HM 2300 S

32-50

3000

210-270

160-180

280-540

AutoControl

165

750

HM 2600 S

42-75

4200

250-320

160-180

270-530

AutoControl

180

775

HM 3000 S

55-100

5800

310-390

160-180

280-460

AutoControl

200

810

65-120

360-450

280-450

210

12 Tools you can trust

The performance, avail-ability and economy of thehydraulic hammer is heav-ily dependent on the typeand quality of the workingtool.

As a manufacturer ofhydraulic hammers it goeswithout saying that wealso produce the appropri-ate working tools – theyare inseparable and haveto be properly matched.

To ensure that the workingtools are of the requiredquality, only special steelmeeting our stringentspecifications is used.

After initial machiningusing state-of-the-art CNCproduction machines, theworking tools are giventhe required hardness by arigorously controlled heattreatment process.

Frequent interim checks are carried out at all stages ofthe manufacturing process,guaranteeing constant highquality and impressiveavailability in use.

Although it is not easy togeneralize about whichdesign, i.e. the geometri-cal shape of the tip, ismost suitable for a givenapplication, experience

has shown that, in princi-ple, only three differenttypes are required:

• Conical points designedas universal tools

• Flat chisel with a cross-cut tip

• Blunt tools without acutting edge

Other special designs areavailable on request.

Conical point

for multi-purpose use

Flat chisel

for rock-breakingand demolition work

Blunt tool

for rock-breaking and reducing oversizes

Working tool lengths

For heavy-duty hydraulic hammers from theHM 1500 upward, working tools are available inthree different lengths: compact, long, extra long. Our specalists will be pleased to advise you on theoptimal tool length for your application.

13Leading experts in attachment technology

The power for operatingthe hydraulic hammer issupplied by the carrier’shydraulic system, and wehave reached agreementswith renowned manufac-turers of hydraulic con-struction and earth-mov-ing equipment around theworld covering the attach-ment of our hydraulichammers.

As a result, many carriersnow feature a hammer-operation facility as stan-dard. Where this is not thecase, Krupp can supplyspecially designed conver-sion kits for carriers, withspecially matched valves,ensuring optimum utiliza-tion of oil delivery andoperation of the hammerand carrier.

Krupp hydraulic hammersare mounted on the carriervia an adapter or a ham-mer holder. These can besupplied for all carriertypes, the majority of themfrom stock, while new orspecial designs can beengineered and manufac-tured within just a fewdays.

14 Typical applications

1 2 3

4 5 6

7 8 9

15

10

1211

1413

Krupp hydraulic hammershave been proving theirreliability for many years,even in the toughest ofconditions.

Fig. 1: HM 60 at work strippingout a building

Fig. 2: HM 140 demolishing a silofor chemicals

Fig. 3: HM 190 used for trench-work

Fig. 4: HM 230 at work on concrete

Fig. 5: HM 580 used for primary crushing work

Fig. 6: HM 1000 at work on foun-dations

Fig. 7: HM 780 used for demoliti-on work

Fig. 8: HM 1000 used for pipeline trenchwork

Fig. 9: HM 1500 at work on rock-breaking

Fig. 10: HM 1500 demolishing abunker

Fig. 11: HM 2100 used for tren-chwork in an inner-cityarea

Fig. 12: HM 1500 at work on rock-breaking

Fig. 13: HM 2100 quarrying

Fig. 14: HM 2000 tunneling

Front HM 4000 used for quarrycover: work

Page 2 HM 4000 used for quarrywork

Page 7 HM 2500 at work breakingup concrete under water

Page 19 HM 4000 used for heavy-duty foundation breaking

16 High quality manufacturing

Krupp hydraulic hammersare manufactured by expe-rienced specialists,

• from high-grade materials• using state-of-the-art NC

and CNC machine tools• temperature and holding

times are observed withpainstaking accuracyduring the multi-stageheat treatment process

• meticulous standardsare applied to machiningwork

• special welding process-es are used for the ham-mer boxes, holders,brackets and adapters.

Rigorous interim checksare carried out at allstages of the manufactur-ing process, while eachindividual hammer is sub-jected to a lengthy finalinspection under operat-ing conditions on a com-puterized test rig.

The entire manufacturingprocess is subject to thestrict regulations of anISO 9001-certified qualitycontrol system.

The result: all Krupphammers are high-per-formance, top qualityproducts which guaranteeyour on-site success!

17Delivery from stock – quick and efficient

Over 11,000 items are heldpermanently in stock toensure quick and reliabledelivery.

Hundreds of orders areprocessed daily in ourcentral warehouse inEssen, and in the majorityof cases, delivery can beeffected on the same daythe order is received. Ourcustomers and authorizeddistributors can rest safe inthe knowledge that ham-mers, wear parts, acces-sories and working toolscan be supplied in theshortest possible time.

Atlas Copco ConstructionTools attaches greatimportance to packagingto ensure that all partsarrive undamaged.

18 Sales and service: on your doorstep – worldwide!

Wherever you may be,help is never far away: ourengineers and service per-sonnel will be pleased tohelp with questions onmatters such as on-siteapplications, selection ofthe right hammer for thecarrier, mechanical andhydraulic connection, the-oretical and practical train-ing of operating person-nel, and the repair of ham-mers and accessories.

The experienced staff ofour authorized distributorsaround the world can pro-vide the right advice on allmatters. Training at regu-lar intervals, either inEssen or at the distribu-tors' own premises,ensures that they can dealwith all your questionsand problems concerningthe use of hydraulic ham-mers. In addition, the dis-tributors provide a fullafter-sales service and willsupply you with genuineKrupp working tools andspare parts from stock.

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www.atlascopco.com

www.hydraulic-attachments.com

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