MENCK’s MHU 150S and 300S Pile Driving Systems
MENCK Hydraulic Underwater Hammer MHU –S and –T series have played an essential role in the development and progression of offshore oil & gas explorations and developments from the very beginning.
MHU’s double acting hydraulic technology combined with the modular yet compact design delivers energy transfer efficiency of up to and above 95%, making the MHU series of hammers the lightest and yet most powerful system for every pile configuration required.
Outer Diameter (OD): 0.5 m (24-in.) - 2.2 m (84-in.)
The MHU 150S and MHU 300S hammers are both directly adaptable to pile sizes ranging from 0.5m OD (24-in.) to 2.2m OD (84-in.). In line with its integral design considerations, these hammers can be utilized for above water and shallow subsea operations in up to 300 m water depth. Once paired with MENCK’s deepwater girdle-type powerpack, the MENCK Hydraulic Deepwater Power Pack (MHP DWS), these hammers can support installation efforts in water depths down to 3,000 m (10,000-ft) effectively and efficiently. Notably, the integral part of the technology – the MHU hammer - is one and the same for every system and size.
Key features & Benefits
- Suits free-riding or leader-guided operations
- Meets specification to be operated off drilling vessels through moonpool
- Fits into tight spaces
- Plug-and-play setup using quick-connect couplings on hydraulic, hose and umbilical connections
- Highest net energy vs. system weight ratio in its class making it the lightest system on the market
- >95% net energy transfer, infinitely adjustable between to the precise energy output required
- Can be mobilized globally and deployed to 3,000 m water depth
- Flexible adaptation concept for quick-reconfiguration of system to different pile diameters
- Single-lift deployment for operations
- Closed-loop hydraulic system, configurable using biodegradable Oil
- Numerous safety systems to meet highest HSE standards and improve system lifetime
- Powered by MENCK's MHP power pack(s) of variable size
- Controlled through MENCK’s one-fits-all-hammers MHC 21 control unit
- Supported by MENCK’s MWI combi winch unit for ease of deployment and recovery
- Run by MENCK’s service technicians
Operational Data & Standard Configuration
MHU 135T | MHU 150S | MHU 270T | MHU 300S | |
Minimum Nominal Energy Output (10%)[kJ] | 15 | 15 | 27 | 27 |
Nominal Maximum Energy Output | Surface & shallow water [kJ] | 150 | 150 | 300 | 300 |
Nominal Maximum Energy Output | Deepwater @ 1,000 m WD [kJ] | 135 | 135 | 265 | 265 |
Oil Flow Rate @ Max. Energy [ l/min ] | 380 l/min | 380 l/min | 600 l/min | 600 l/min |
Ram Weight [ton] | 8.2 | 8.2 | 16.2 | 16.2 |
Weight of Hammer incl. Ram [ton] | 19.5 | 19.5 | 30.8 | 30.8 |
Outfitted with Anvil / Pile Sleeve 0.5 m – 1.6m Pile Diameter
Length overall | [m] | 10.5 | 12.4 | |
Total Weight, above water config. | In air | [ton] | 35.6 | 45.3 |
Total Weight, above water config. | submersed | [ton] | --- | --- |
Total Weight, submerged config. | In air | [ton] | 35.6 | 52.3 |
Total Weight, submerged config. | submersed | [ton] | 27.3 | 36.3 |
Total Weight deepwater config. | In air | [ton] | 55.1 | 66.0 |
Total Weight deepwater config. | submersed | [ton] | 39.3 | 47.4 |
For deepwater operations
For above water and shallow water operations
- • MENCK’s Hydraulic Power Pack MHP 450 (MHU 150S) and MHP 800 (MHU 300S), or larger size
- • 2.0-in. ID Hydraulic Lines (1x HP, 1x LP), optional on MENCK’s designated Combi Winch unit MWI
- • MENCK’s Hammer Control Unit MHC 21
- • Suitable Stock of Spare Parts & MENCK’s Workshop Container
For deepwater operations
- • MENCK’s Underwater Power Pack Deepwater MHP DWS 48”
- • MENCK’s Deepwater Umbilical Winch Unit MWI DWS, with suitable length umbilical
- • MENCK’s Deepwater Air Compressor unit xxx
- • MENCK’s Hammer System Control Unit MHC 21 DWS
- • MENCK’s Deepwater Powercontainer MOC DWS, with integrated control & monitoring cabin
- • Suitable Stock of Spare Parts for all MENCK System Components & MENCK DWS Workshop Container
Supplementing Services
- • Project Management and Engineering Services fully supplementing and integrating into client's project team
- • Highly-qualified and fully trained offshore service technician team, fully supplementing and integrated into client’s offshore team