Hydraulic double acting impact hammers

Powerful pile driving for complex offshore foundations

Hydraulic double acting impact hammers from Menck, Acteon’s Marine Foundations business line, deliver high-impact energy to drive piles efficiently in any soil formation.

These systems are ideal for offshore wind and oil and gas foundation installations where increased efficiency ensures safe and reliable installation completion and reduced refusal risk.

From harsh offshore environments to ultra deepwater, our hammers support confident project execution where performance is critical.

Menck unveils the MHU 6000W Wind Hammer
6250 kJ

Energy range up to 6,250 kJ

2500+

Wind turbine foundations driven

How hydraulic double acting impact hammers work

Hydraulic double acting impact hammers are used when single-acting hammer systems reach their limits. They deliver higher total energy to overcome refusal, reduce pile fatigue and improve installation performance in challenging soil conditions. 

Our hydraulic double acting impact hammers are used when increased impact frequency, and greater control than single-blow-energy, are necessary to drive piles efficiently.

Acteon integrates these hammers into a comprehensive foundation installation solution - including pile drivability analysis, driven pile foundation design, and pile driving procedure planning. This ensures safety, predictability and performance from mobilisation through to final pile set. 

Act on noise reduction, stability and predictability

Powering the future of offshore energy, our piling solutions set new standards in sustainability, strength and certainty. We minimise underwater noise to protect marine ecosystems, deliver rock-solid foundations for the largest next-generation turbines, and provide unmatched predictability with data-driven installation planning.

Challenges and benefits icon.

Reducing underwater noise

Our double acting impact hammers contribute to reducing sound at the pile-driving source, helping projects meet underwater noise limits and safeguard marine life.

Challenges and benefits icon.

Providing stable foundations for next generation turbines

Purpose-designed to meet the scale and precision required for today’s XXL monopiles and the turbines of tomorrow.

Challenges and benefits icon.

Enhancing predictability in pile installation

With integration into pile drivability analysis, operators can plan and adapt strategies to ensure reliable offshore execution.

Hydraulic hammer range

Act on power you can trust. Our hammer spread unites double-acting hydraulic hammers (100 kJ to 6,250 kJ), precision control systems and noise-mitigation tools to drive even the largest monopiles into place efficiently, reliably, and with environmental foresight.

Menck hammer MHU100C

100C

Energy range
10-100 kJ

Recommended oil flow
240 L/min

Average operating pressure
275 bar

Blow rate at recommended oil flow
45 bl/min

Weight above Weight submerged Supporting
MHU100C - 1.6 m Foot 10.5 t - -
MHU100C - 1.6 m: 0.5 - 1.6 m OD AW 15.6 t - C, O&G
View data sheet
Menck hammer MHU150S

150S

Energy range
15-150 kJ

Recommended oil flow
380 L/min

Average operating pressure
260 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU150S - 1.6 m Foot 21.1 t - -
MHU150S - 1.6 m: 0.5 - 1.6 m OD UW 35.6 t 27.3 t C, O&G
MHU150S - 42": <42" OD AW 27.7 t - C, O&G
View data sheet
Menck hammer MHU300S

300S

Energy range
27-300 kJ

Recommended oil flow
650 L/min

Average operating pressure
270 bar

Blow rate at recommended oil flow
40 bl/min

Weight above Weight submerged Supporting
MHU300S - 1.6 m Foot 30.8 t - -
MHU300S - 42" Foot 38.5 t - -
MHU300S - 1.6 m: 0.5 - 1.6 m OD UW 45 t - C, O&G
MHU300S - 1.6 m: 84" - 2.5 m 69 t 51 t C, O&G
View data sheet
Menck hammer MHU550S

550S

Energy range
50-550 kJ

Recommended oil flow
1150 L/min

Average operating pressure
225 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU550S - 72" Foot 54 t - -
MHU550S - 72": 36" - 72" OD AW 76 t - C, O&G
MHU550S - 72": 36" - 2.2 m OD AW 83 t - C, O&G
MHU550S - 60": 36" - 60" OD AW 69 t - C, O&G
View data sheet
Menck hammer MHU800S

800S

Energy range
75-820 kJ

Recommended oil flow
1600 L/min

Average operating pressure
250 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU800S - 84" Foot 79.6 t - -
MHU800S - 84": 48" - 84" OD AW 114 t - C, O&G
MHU800S - 84": 48" - 96" OD AW 121 t - C, O&G
MHU800S - 84": 84" - 3.75 m OD UW 170 t 130 t C, O&G
View data sheet
Menck hammer MHU1200S

1200S

Energy range
110-1200 kJ

Recommended oil flow
2400 L/min

Average operating pressure
245 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU1200S - 84" Foot 119 t - -
MHU1200S - 84": 60" - 102" OD AW 178 t - C, O&G
MHU1200S - 84": 84" - 3.75 m OD UW 215 t 172 t C, O&G, R
MHU1200S - 84": 60" - 108" OD UW 211 t 169 t C, O&G
View data sheet
Menck hammer MHU1900S

1900S

Energy range
190-1900 kJ

Recommended oil flow
3200 L/min

Average operating pressure
250 bar

Blow rate at recommended oil flow
32 bl/min

Weight above Weight submerged Supporting
MHU1900S - 84" Foot 158 t - -
MHU1900S - 84": 60" - 102" OD AW 218 t - C, O&G
MHU1900S - 72": 42" - 72" OD AW 188 t - C, O&G
MHU1900S - 84": 60" - 108" OD UW 249 t 200 t C, O&G
View data sheet
Menck hammer MHU2400S

2400S

Energy range
240-2400 kJ

Recommended oil flow
4000 L/min

Average operating pressure
250 bar

Blow rate at recommended oil flow
32 bl/min

Weight above Weight submerged Supporting
MH2400S - 3 m Foot 251 t - -
MH2400S - 3 m: 102" - 4 m OD UW 452 t 363 t O&G, R
MH2400S - 3 m: 84" - 3.75 m OD AW 369 t - O&G, R
View data sheet
Menck hammer MHU3500S

3500S

Energy range
320-3500 kJ

Recommended oil flow
5800 L/min

Average operating pressure
240 bar

Blow rate at recommended oil flow
32 bl/min

Weight above Weight submerged Supporting
MHU3500S - 4 m Foot 341 t - -
MHU3500S - 4 m: 102" - 4 m OD UW 564 t 433 t O&G, R
View data sheet
Menck hammer MHU100C

100C

Energy range
10-100 kJ

Recommended oil flow
240 L/min

Average operating pressure
275 bar

Blow rate at recommended oil flow
45 bl/min

Weight above Weight submerged Supporting
MHU100C - 1.6 m Foot 10.5 t - -
MHU100C - 1.6 m: 0.5 - 1.6 m OD AW 15.6 t - C, O&G
View data sheet
Menck hammer MHU150S

150S

Energy range
15-150 kJ

Recommended oil flow
380 L/min

Average operating pressure
260 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU150S - 1.6 m Foot 21.1 t - -
MHU150S - 1.6 m: 0.5 - 1.6 m OD UW 35.6 t 27.3 t C, O&G
MHU150S - 42": <42" OD AW 27.7 t - C, O&G
View data sheet
Menck hammer MHU300S

300S

Energy range
27-300 kJ

Recommended oil flow
650 L/min

Average operating pressure
270 bar

Blow rate at recommended oil flow
40 bl/min

Weight above Weight submerged Supporting
MHU300S - 1.6 m Foot 30.8 t - -
MHU300S - 42" Foot 38.5 t - -
MHU300S - 1.6 m: 0.5 - 1.6 m OD UW 45 t - C, O&G
MHU300S - 1.6 m: 84" - 2.5 m 69 t 51 t C, O&G
View data sheet
Menck hammer MHU550S

550S

Energy range
50-550 kJ

Recommended oil flow
1150 L/min

Average operating pressure
225 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU550S - 72" Foot 54 t - -
MHU550S - 72": 36" - 72" OD AW 76 t - C, O&G
MHU550S - 72": 36" - 2.2 m OD AW 83 t - C, O&G
MHU550S - 60": 36" - 60" OD AW 69 t - C, O&G
View data sheet
Menck hammer MHU800S

800S

Energy range
75-820 kJ

Recommended oil flow
1600 L/min

Average operating pressure
250 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU800S - 84" Foot 79.6 t - -
MHU800S - 84": 48" - 84" OD AW 114 t - C, O&G
MHU800S - 84": 48" - 96" OD AW 121 t - C, O&G
MHU800S - 84": 84" - 3.75 m OD UW 170 t 130 t C, O&G
View data sheet
Menck hammer MHU1200S

1200S

Energy range
110-1200 kJ

Recommended oil flow
2400 L/min

Average operating pressure
245 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU1200S - 84" Foot 119 t - -
MHU1200S - 84": 60" - 102" OD AW 178 t - C, O&G
MHU1200S - 84": 84" - 3.75 m OD UW 215 t 172 t C, O&G, R
MHU1200S - 84": 60" - 108" OD UW 211 t 169 t C, O&G
View data sheet
Menck hammer MHU1900S

1900S

Energy range
190-1900 kJ

Recommended oil flow
3200 L/min

Average operating pressure
250 bar

Blow rate at recommended oil flow
32 bl/min

Weight above Weight submerged Supporting
MHU1900S - 84" Foot 158 t - -
MHU1900S - 84": 60" - 102" OD AW 218 t - C, O&G
MHU1900S - 72": 42" - 72" OD AW 188 t - C, O&G
MHU1900S - 84": 60" - 108" OD UW 249 t 200 t C, O&G
View data sheet
Menck hammer MHU1200S

1200S

Energy range
110-1200 kJ

Recommended oil flow
2400 L/min

Average operating pressure
245 bar

Blow rate at recommended oil flow
38 bl/min

Weight above Weight submerged Supporting
MHU1200S - 84" Foot 119 t - -
MHU1200S - 84": 84" - 3.75 m OD UW 215 t 172 t C, O&G, R
View data sheet
Menck hammer MHU2400S

2400S

Energy range
240-2400 kJ

Recommended oil flow
4000 L/min

Average operating pressure
250 bar

Blow rate at recommended oil flow
32 bl/min

Weight above Weight submerged Supporting
MH2400S - 3 m Foot 251 t - -
MH2400S - 3 m: 102" - 4 m OD UW 452 t 363 t O&G, R
MH2400S - 3 m: 84" - 3.75 m OD AW 369 t - O&G, R
MH2400S - 3 m: 5 m - 6.5 m OD AW 494 t - R
View data sheet
Menck hammer MHU3500S

3500S

Energy range
320-3500 kJ

Recommended oil flow
5800 L/min

Average operating pressure
240 bar

Blow rate at recommended oil flow
32 bl/min

Weight above Weight submerged Supporting
MHU3500S - 4 m Foot 341 t - -
MHU3500S - 4 m: 6.5 - 8 m OD AW 673 t - R
MHU3500S - 4 m: 102" - 4 m OD UW 546 t 433 t O&G, R
MHU3500S - 3 m: 5 m - 7.5 m OD AW 621 t - R
View data sheet
Menck hammer MHU4400S

4400S

Energy range
130-4400 kJ

Recommended oil flow
6400 L/min

Average operating pressure
285 bar

Blow rate at recommended oil flow
35/32 bl/min

Weight above Weight submerged Supporting
MHU4400S - 4 m Foot 402 t - -
MHU4400S - 4 m: 6.5 - 8 m OD AW 739 t - R
MHU4400S - 4 m: 102" - 4 m OD UW 604 t 480 t R
MHU3500S - 3 m: 5 m - 7.5 m OD AW 674 t - R
View data sheet
Menck hammer MHU6000W

6000W

Energy range
200-6250 kJ

Recommended oil flow
12800 L/min

Average operating pressure
210 bar

Blow rate at recommended oil flow
30 bl/min

Weight above Weight submerged Supporting
MHU6000W - 5 m Foot 700 t - -
MHU6000W - 5 m: 8 - 9 m OD UW 1319 t 1020 t R
View data sheet
Contact our experts

Latest resources

Explore how Acteon’s pile driving solutions are used to support energy infrastructure around the world – including our case studies, technology briefs and offshore execution highlights.

News

07 Apr 2026

European offshore wind leaders launch Searénité Consortium to advance marine noise mitigation

Chantiers de l’Atlantique, EDF power solutions, Heerema Marine Contractors, Menck, RTE, Sealence and Smulders have formed a consortium to develop a cutting-edge noise mitigation system for offshore wind operations. The growth of offshore renewable energy presents an important opportunity to further strengthen our commitment to responsible operations. Understanding and managing underwater noise becomes increasingly essential to protecting marine ecosystems. Activities such as ship traffic, sonar use, and offshore construction can affect marine life over large distances. Offshore wind farm installation is one of these activities.
Read Article

Blogs

02 Apr 2026

Building momentum: How foundation innovation is unlocking gigawatt-scale offshore wind

As our recent blog series has shown, scaling offshore energy depends on integration across every stage of delivery, from reliable moorings and precise seabed intelligence to adaptable engineering design. Now, as the offshore wind industry races toward gigawatt-scale developments, offshore wind foundations have become the next frontier for efficiency and innovation.
Read More

News

05 Mar 2026

Acteon delivers first MHU4400S hammer to Heerema, strengthening offshore foundations partnership

Menck, Acteon’s Marine Foundations business line, has successfully delivered the first of two MHU4400S hydraulic hammer systems to Heerema Marine Contractors Nederland SE (“Heerema”) under a strategic multi-million-pound agreement. This milestone marks the first phase of a two-hammer supply agreement that reinforces the long-standing collaboration between Heerema and Acteon. The hammers will join Heerema’s extensive fleet of Menck’s systems, further strengthening its position among leading transport and installation (T&I) contractors.
Read Article
See more resources

Speak to our experts

Acteon’s teams can advise on whether Menck’s double acting impact hammers are suitable for specific offshore pile-driving campaigns.

Contact us