Krupp hydraulic hammers

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

1963 – Krupp submitted the first ever patent application for a hydraulic percussion mechanism. 1967 – At the Hanover Fair Krupp introduced the world’s first machine-operated hydraulic hammer – the HM 400. 1985 – Krupp launched the first silenced and vibration damped system of hydrau-

lic hammers under the name "Vibrosilenced", finally providing genuine relief for both man and machine.

As a leading innovator in the development of hydraulic hammers, the company has been setting standards since 1963.

1995 – Further improvement and development resulted in the "Vibrosilenced Plus" system for even more effective silencing and vibration damping.

Today’s Atlas Copco Construction Tools offers:

1998 – The "Marathon®" wear protection system, for improving hammer availability, was launched. In 2000 Krupp Berco Bautechnik is introducing two series of high-performance hydraulic hammers – the "Eco line" and the "Marathon® line". In 2002, Krupp Berco Bautechnik was taken over by the Atlas Copco group.

HM 400 with special holder at work in a quarry – first put to work in 1968 and in operation until 1987, this fully operational veteran is now on display at the German Museum in Munich.

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• Highly productive hydraulic hammers • Practice-oriented consulting on all aspects of the hammer

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Technology for maximum economy

Decades of experience and the latest innovations have gone into the design of Krupp’s hydraulic hammers, the following being just some of the features that ensure maximum economy: • Universal application • Long service life • High performance • High availability • Easy maintenance • Reduced strain on carriers

1 Higher performance AutoControl optimizes running characteristics, facilitates energy recovery and simplifies the handling of the hammer.

features of Krupp’s hydraulic hammers are illustrated in this cross-section of an HM 2500 Marathon®. It is details such as these that make our hydraulic hammers unbeatable and give you the edge over your competitors.

2 Ready for special applications Standard port for forced ventilation, e.g. for underwater jobs.

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Many of the carefully developed, practice-proven

1 3 4 6

3 Maintenance-friendly Service opening provides direct access for routine maintenance; the percussion mechanism can be easily removed from the hammer box. 4 Energy accumulation and safe start-up Due to integrated gas piston accumulator in the cylinder cover 5 Automatic lubrication With the ContiLube® II mounted directly on the hammer box; very simple handling and highly economical use of lubricant.

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6 Easy on carrier The elastic suspension of the percussion mechanism in pre-stressed elastic damping elements prevents damage to the carrier.

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7 Low noise emission levels No acoustic bridges between percussion mechanism and hammer box. Additional silencing optional.

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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 having virtually the same diameter. 10 Long service life of hammer box Due to use of highly wear-resistant materials for high-stress zones.

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11 Long service life of wear bushings Due to DustProtector facility for effective protection against dust penetration. 12 Reliable working tools By precise coordination of design, materials and heat treatment. Inhouse production!

Silencing and vibration damping for all Krupp hydraulic hammers

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

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3 5

9 9

6

100 95

8

4

2

8 dB(A)

90

Hammer

10

1 Hammer

7

85

80

4

Krupp launched the first silenced and vibration damped hydraulic hammers back in 1985 under the name "Vibrosilenced". This involved the use of non-metallic suspension arrangements to isolate the percussion mechanism acoustically from the external carrier system. These arrangements prevented noise and vibrations emanating from the percussion mechanism from being transferred by the carrier system to the carrier and into the wider environment. "Vibrosilenced" achieved a reduction in noise emissions of approx. 8 dB(A) in comparison to the older, conventional carrier systems.

At the 1995 Bauma show, Krupp introduced "Vibrosilenced Plus", a further improvement on the Vibrosilenced" system. By optimizing the shape of the hammer box and sealing all openings, a further reduction in noise emissions of approx. 8 dB(A) was achieved, i.e. perceived noise levels were once again cut by half.

The diagram shows 10 the results of measurements taken all the way around a hydraulic hammer with the two different carrier systems. The differences speak for themselves. The impact of these developments is apparent on building sites everywhere. To prevent noise emissions causing long term harm to individuals, they must remain at the minimum distance at which the noise level is below 85 dB(A).

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7 1

Vibrosilenced Plus Vibrosilenced

With Krupp’s hydraulic hammers this distance is as follows: • Pre-1985 70 m • "Vibrosilenced" 31 m • "Vibrosilenced Plus" 10 m A variety of options to meet customer requirements are available for "Eco line" hammers (see pages 10 and 11).

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

All the "Marathon® line" hammers are equipped with the "Marathon®" wear protection system developed by Krupp. This system prevents excessive wear on the hammer, resulting from: • dirt penetration • inadequate lubrication • excessive material strain during use.

MARA THON

®

The system consists of the following three components:

AutoControl

Note: Krupp hydraulic hammers with AutoControl switch automatically to a higher impact rate with reduced impact force when called for by operating conditions. For applications requiring only a high impact rate, AutoControl can be set accordingly. Prevents damage!

DustProtector

ContiLube® II

Precise piston control and automatic stroke switching

Dust protection facility mounted on the hydraulic hammer

Automatic lubrication unit mounted directly on the hydraulic hammer

A control system for adjusting the impact rate and force to a variety of operating conditions. (Application for DBP 19636659 pending)

Two independently operating strippers prevent the penetration of coarse dirt and fine dust particles into the lower hammer part. (DBP 19628815 received)

Mounted directly on the hammer, this unit ensures reliable, automatic lubrication of the working tool’s wear bushings.

Effects AutoControl

DustProtector

ContiLube® II

Smooth running

Minimal wear of lower hammer part

Minimal wear

Energy recovery and high efficiency

Optimal lubrication

Non-stop use

Reduced strain on equipment

Improved service life of wear parts

Simple handling

Highly adaptable

Maintenance-friendly

Flexible use of hammer

= Greater productivity

= High availability

= Uninterrupted production

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Krupp has the right hydraulic hammer for a wide range of applications, as shown in the table. Moreover, our equipment is designed such that special jobs can generally also be handled without the need for extensive conversion or accessories.

Hammers to suit all requirements

Field

General construction work

Demolition For underwater applications, additional equipment such as compressed air lines and safety circuits is essential to ensure safe, damage-free operation. The corresponding conversion equipment is available as an optional extra. For tunneling applications, the "Marathon® line" hydraulic hammers with DustProtector permit uninterrupted operation, even in extreme dust conditions. Use in high-temperature applications, such as in steel or aluminum works, does not require any retrofitting. Where dust is excessive the hammer can be protected with a jet of air. When working underwater or in protected drinking water areas, Krupp hydraulic hammers can also be operated using environmentally compatible fluids and lubricants.

Type of application

Hammer models

Tearing up concrete and asphalt HM 60 - HM 780 S road surfaces Landscape gardening HM 60 - HM 350 and landscaping Trenchwork for utilities, HM 60 - HM 4000 S foundation work Masonry and HM 60 - HM 780 S non-reinforced concrete Reinforced concrete

HM 90 - HM 780 S

Heavily reinforced concrete, demoHM 960 - HM 4000 S lition of power stations and bridges

Rock breaking

Tunneling, mining

Hightemperature applications

Underwater applications

Quarrying

HM 960 - HM 4000 S

Breaking oversizes Bench leveling Trenchwork Foundation work

HM 720 - HM 4000 S

Clearing the roof

HM 90 - HM 780 S

Bench leveling

HM 90 - HM 4000 S

Tunnel driving

HM 780 S HM 1000 S-HM 4000 S

Removing encrustations

HM 140 - HM 780 S

Breaking out ladles and molds

HM 90 - HM 780 S

Breaking up slag

HM 960 - HM 4000 S

Demolition Deepening shipping channels

HM 960 - HM 4000 S

The right combination for high productivity

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

▼▼

The right hammer for every carrier The chart shows how to match individual hammer models to carrier service weights, i.e. the weight of the respective standard excavator. The top priority here is ensuring the stability of the carrier with the tool attached. The delivery of the hydraulic pumps is then of decisive importance for the optimal operation of the hydraulic hammer.

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HM 3000 S HM 4000 S

Recommended combinations

Performance figures for secondary rock breaking The chart shows guideline figures for hydraulic hammer performance in secondary rock breaking.

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

Oversizes 140 - 420

HM 2600 S

180 - 540

HM 3000 S

200 - 610

HM 4000 S

230 - 680

0

Performance figures for demolition The chart shows performance ranges for the demolition of reinforced and non-reinforced concrete structures. The guideline figures indicated can vary significantly depending on operating and environmental conditions. The performance data are based on practical results. Factors influencing work rates include • the type of material being broken • the degree of reduction required • the condition of the carrier and hammer • the skill/experience of the operator

Model

100

200 300 400 500 600 These figures are intended as a guideline and are not binding

700 t/h

Performance figures in cubic meters per 8-hour shift

HM 60

5 - 11

HM 90

8 - 16 4-9

HM 140

8 - 23 4 - 14 15 - 42 10 - 28

HM 170

30 - 60 20 - 40

HM 230

45 - 110 30 - 75

HM 350

65 - 130 45 - 90

HM 580

105 - 210 70 - 140

HM 720

non-reinforced concrete reinforced concrete

HM 780 S

160 - 280 110 - 190

HM 960

160 - 280 110 - 190 210 - 385

HM 1000 S

140 - 255 250 - 490

HM 1500 S

170 - 330 320 - 650

HM 2300 S

210 - 430 390 - 850

HM 2600 S

260 - 565 490 - 1200

HM 3000 S

320 - 810 600 - 1500

HM 4000 S

400 - 1000

0

100

200

300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 These figures are intended as a guideline and are not binding m3 / 8 h

Specifications that speak for themselves

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"Eco line" hydraulic hammers Lightweight series

Carrier system: "Vibrosilenced" hammer box Add. noise protection: "Vibrosilenced Plus" as standard

Carrier system: "Vibrosilenced" hammer holder

Eco line Carrier weight class1)

t

Service weight

kg

2)

Oil flow rate

l / min

Operating pressure Impact rate

HM 90

HM 140

HM 170

HM 60

HM 90

HM 140

HM 170

HM 230

1-3

1.5-4

2.5-9

5-12

1.2-3

1.9-4.4

2.5-9

5-12

6-13

75

130

210

245

100

165

245

300

380

15-35

25-45

35-55

50-75

15-35

25-45

35-55

50-75

60-90

bar

90-120

90-130

120-140

120-140

90-120

90-130

120-140

120-140

120-150

bpm

570-1700

500-1150

500-1150

500-1000

570-1700

500-1150

500-1150

500-1000

520-1000

-

-

-

-

-

-

-

-

-

Stroke-length switching

1)

HM 60

Working tool diameter

mm

48

62

65

75

48

62

65

75

80

Useful length of tool

mm

340

435

495

500

300

395

450

455

415

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

2)

Hammer and hammer box with standard adapter plus working tool.

"Eco line" hydraulic hammers Medium series Carrier system: "Vibrosilenced" Additional noise protection: "Vibrosilenced Plus" hammer box as standard for HM 350, otherwise optional ContiLube® II automatic lubrication unit as an option S = StartSelect: choice of “AutoStart” or “AutoStop”

Eco line

HM 350

HM 580

HM 720

HM 780 S

t

8-15

12-18

15-24

15-26

kg

550

900

1200

1200

l / min

60-100

70-120

90-120

100-140

Operating pressure

bar

130-160

120-180

140-170

160-180

1 2

bpm

440-1000

370-820

350-600 700-1200

340-680

-

-

manual

AutoControl

Working tool diameter

mm

90

100

115

120

Useful length of tool

mm

450

560

615

605

Carrier weight class1) Service weight2) Oil flow rate

Impact rate

Stroke-length switching

1)

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

2)

Hammer and hammer box plus working tool and mediumsized adapter.

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"Eco line" hydraulic hammers Heavy-duty series

Carrier system: "Vibrosilenced" hammer box

HM 960

HM 1000 S

HM 1500 S

HM 2300 S

HM 2600 S

HM 3000 S

HM 4000 S

t

18-34

18-34

26-40

32-50

42-75

55-100

65-120

kg

1600

1700

2200

3000

4200

5800

7000

Eco line Carrier weight class1) Service weight

2)

Oil flow rate Operating pressure Impact rate

1 2

l / min

130-170

130-160

140-180

210-270

250-320

310-390

360-450

bar

120-140

160-180

160-180

160-180

160-180

160-180

160-180

bpm

360-540 720-960

320-600

280-550

280-540

270-530

280-460

280-450

manual

AutoControl

AutoControl

AutoControl

AutoControl

AutoControl

AutoControl

Stroke-length switching

1)

Additional noise protection: "Vibrosilenced Plus" as an option ContiLube® II automatic lubrication unit as an option S = StartSelect: choice of “AutoStart” or “AutoStop”

Working tool diameter

mm

135

140

150

165

180

200

210

Useful length of tool

mm

615

650

650

795

820

905

975

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

2)

Hammer and hammer box plus working tool and mediumsized adapter.

"Marathon® line" hydraulic hammers Medium and heavy-duty series Carrier system: "Vibrosilenced" hammer box Additional noise protection: "Vibrosilenced Plus" as standard on HM 4000, otherwise optional Standard equipment:

AutoControl automatic stroke-length switching DustProtector dust protection facility ContiLube® II automatic lubrication unit S = StartSelect: choice of “AutoStart” or “AutoStop”

HM 780 S

HM 1000 S

HM 1500 S

HM 2300 S

HM 2600 S

HM 3000 S

HM 4000 S

t

15-26

18-34

26-40

32-50

42-75

55-100

65-120

kg

1200

1700

2200

3000

4200

5800

7000

l / min

100-140

130-160

140-180

210-270

250-320

310-390

360-450

bar

160-180

160-180

160-180

160-180

160-180

160-180

160-180

bpm

340-680

320-600

280-550

280-540

270-530

280-460

280-450

Marathon® line Carrier weight class1) Service weight2) Oil flow rate Operating pressure Impact rate

AutoControl

AutoControl

AutoControl

AutoControl

AutoControl

AutoControl

AutoControl

Working tool diameter

mm

120

140

150

165

180

200

210

Useful length of tool

mm

580

625

605

750

775

810

885

Stroke-length switching

1)

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

2)

Hammer and hammer box plus working tool and mediumsized adapter.

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Tools you can trust

The performance, availability and economy of the hydraulic hammer is heavily dependent on the type and quality of the working tool. Conical point for multi-purpose use

As a manufacturer of hydraulic hammers it goes without saying that we also produce the appropriate working tools – they are inseparable and have to be properly matched.

Flat chisel for rock-breaking and demolition work

To ensure that the working tools are of the required quality, only special steel meeting our stringent specifications is used. After initial machining using state-of-the-art CNC production machines, the working tools are given the required hardness by a rigorously controlled heat treatment process. Frequent interim checks are carried out at all stages of the manufacturing process, guaranteeing constant high quality and impressive availability in use. Although it is not easy to generalize about which design, i.e. the geometrical shape of the tip, is most suitable for a given application, experience

has shown that, in principle, only three different types are required: • Conical points designed as universal tools • Flat chisel with a crosscut tip • Blunt tools without a cutting edge Other special designs are available on request.

Blunt tool for rock-breaking and reducing oversizes

Working tool lengths For heavy-duty hydraulic hammers from the HM 1500 upward, working tools are available in three different lengths: compact, long, extra long. Our specalists will be pleased to advise you on the optimal tool length for your application.

Leading experts in attachment technology

The power for operating the hydraulic hammer is supplied by the carrier’s hydraulic system, and we have reached agreements with renowned manufacturers of hydraulic construction and earth-moving equipment around the world covering the attachment of our hydraulic hammers.

As a result, many carriers now feature a hammeroperation facility as standard. Where this is not the case, Krupp can supply specially designed conversion kits for carriers, with specially matched valves, ensuring optimum utilization of oil delivery and operation of the hammer and carrier.

Krupp hydraulic hammers are mounted on the carrier via an adapter or a hammer holder. These can be supplied for all carrier types, the majority of them from stock, while new or special designs can be engineered and manufactured within just a few days.

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Typical applications

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1

2

3

4

5

6

7

8

9

15

Krupp hydraulic hammers have been proving their reliability for many years, even in the toughest of conditions.

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Fig. 1:

HM 60 at work stripping out a building

Fig. 2:

HM 140 demolishing a silo for chemicals

Fig. 3:

HM 190 used for trenchwork

Fig. 4:

HM 230 at work on concrete

Fig. 5:

HM 580 used for primary crushing work

Fig. 6:

HM 1000 at work on foundations

Fig. 7:

HM 780 used for demolition work

Fig. 8:

HM 1000 used for pipeline trenchwork

Fig. 9:

HM 1500 at work on rockbreaking

Fig. 10:

HM 1500 demolishing a bunker

Fig. 11:

HM 2100 used for trenchwork in an inner-city area

Fig. 12:

HM 1500 at work on rockbreaking

Fig. 13:

HM 2100 quarrying

Fig. 14:

HM 2000 tunneling

Front cover:

HM 4000 used for quarry work

Page 2

HM 4000 used for quarry work

Page 7

HM 2500 at work breaking up concrete under water

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Page 19 HM 4000 used for heavyduty foundation breaking

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High quality manufacturing

Krupp hydraulic hammers are manufactured by experienced specialists, • from high-grade materials • using state-of-the-art NC and CNC machine tools • temperature and holding times are observed with painstaking accuracy during the multi-stage heat treatment process • meticulous standards are applied to machining work • special welding processes are used for the hammer boxes, holders, brackets and adapters. Rigorous interim checks are carried out at all stages of the manufacturing process, while each individual hammer is subjected to a lengthy final inspection under operating conditions on a computerized test rig. The entire manufacturing process is subject to the strict regulations of an ISO 9001-certified quality control system. The result: all Krupp hammers are high-performance, top quality products which guarantee your on-site success!

Delivery from stock – quick and efficient

Over 11,000 items are held permanently in stock to ensure quick and reliable delivery. Hundreds of orders are processed daily in our central warehouse in Essen, and in the majority of cases, delivery can be effected on the same day the order is received. Our customers and authorized distributors can rest safe in the knowledge that hammers, wear parts, accessories and working tools can be supplied in the shortest possible time. Atlas Copco Construction Tools attaches great importance to packaging to ensure that all parts arrive undamaged.

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Sales and service: on your doorstep – worldwide!

Wherever you may be, help is never far away: our engineers and service personnel will be pleased to help with questions on matters such as on-site applications, selection of the right hammer for the carrier, mechanical and hydraulic connection, theoretical and practical training of operating personnel, and the repair of hammers and accessories. The experienced staff of our authorized distributors around the world can provide the right advice on all matters. Training at regular intervals, either in Essen or at the distributors' own premises, ensures that they can deal with all your questions and problems concerning the use of hydraulic hammers. In addition, the distributors provide a full after-sales service and will supply you with genuine Krupp working tools and spare parts from stock.

www.hydraulic-attachments.com

Subject to technical modifications

PMI 3390 0504 01a

MN AC0082 gb16 05.2003-2500 Pt.-Id. No. 3002038

www.atlascopco.com