Applications
Enerpac has gained unique expertise in delivering hydraulic solutions for the controlled movement and positioning of structures.
Pre-Loading Bridge Cables with a Battery Powered Hydraulic Pump
ALE Heavy Lift was tasked with skidding an 800 ton railway bridge over a highway using skidding equipment and steel strands. The steel strands were used as diagonals within the skidding towers and as a connection in a longitudinal direction between the skidding supports. Before the bridge could be skided onto the towers, more than 20 cable strands had to be pre-loaded to the same tension.
Bridges
Offshore Production Facility Module Load-Out
An offshore production facility was constructed in the Gulf of Mexico and is projected to be located in water depths of in excess of 5,000 ft. In order to construct the tension-leg platform several modules weighing approximately 7,000 tons needed to be slid into position.
Oil and Gas
Safely Releasing Furnace Bricks from a Steel Fixture
Vesuvius processes the bricks which are used to the line the interior of an industrial furnace. The bricks begin in a "soft" state and need to be compressed, hardened and heated before they are installed in a furnace. A steel box is filled and compressed hardening the bricks. After compression the bricks stick to the steel fixture and a significant amount of force is needed to release the bricks from the steel fixture.
Manufacturing
Synchronously Lowering an 80 ton Yacht
A multi-million dollar luxury sailing yacht was jacked-up two meters to perform renovations. After the retrofit, the yacht needed to be lowered in order to be transported back to the water. Although the yacht was built of carbon fiber, it still weighed 80 tons. And the weight was not evenly distributed; the back was heavier than the front. The uneven distribution of weight posed a serious challenge to safely lowering the yacht.
Ship Building
Tunnel Boring Machine Launched with EVO Synchronous Lifting System
The construction of the 4.5 km Waterview Connection motorway included the deployment of an Earth Pressure Balance Machine to bore a 2.5 km underground twin tunnel. Commencing the tunneling process required positioning the 3,600 ton tunnel boring machine into its starting position.
Infrastructure
Lift and Weigh of a Jack-Up Rig Cantilever and Drill Floor
Lamprell has completed the fabrication of a new jack-up drilling rig. Every jack-up rig cantilever and drill floor needs to be accurately weighed after construction. Space restrictions under the cantilever prevented the use of other weighing systems without costly rework to the load structure. Enerpac distributor Al Masaood Trading, based in Dubai, was asked to provide a safe, accurate and compact solution for weighing the jack-up rig cantilever and drill floor.
Oil and Gas
Refurbishing the Bolted Connections on Liebherr Mobile Crane with a Hydraulic Torque Wrench
Up in the rugged and remote highlands of Papua New Guinea, miners and contractors prize reliability and uptime in the machinery they deploy for vital production, construction and maintenance tasks.
Mining
Foundation Created for Offshore Wind Turbines
Enerpac’s Synchronous Hydraulic Lifting System is used to create a support for offshore wind turbines with impressive precision and timing.
Power Generation
Repositioning of a Satellite Earth Station Antenna
After 30 years of service as a telecommunications satellite earth station, the wheel and track type antenna had moved 6mm out of its central rotation position due to wear on its pintle post bearing pads. In order to restore the position of the 250 ton antenna, it needed to be lifted and moved laterally back to center.
Infrastructure
Quickly Removing Hundreds of Corroded Carriage Bolts with a Hydraulic Nut Splitter and Cordless Pump
Hundreds of vineyard line posts needed to be disassembled and removed. Many of the nuts had rusted onto the carriage bolt holding the vineyard trellis arms. Unbolting them was very time consuming, and faster removal methods such as grinding or torches were dangerous and posed fire hazards.
Oil and Gas
Jacking System Slides the Holbrook Canal into Position
Minimizing the amount of time state highway 266 was shut off to traffic was a primary objective during the reconstruction of the bridge structure over Holbrook Canal. Utilizing an innovative Accelerated Bridge Construction (ABC) method Kiewit, Jacobs Engineering and the Colorado Department of Transportation developed a plan to build the replacement bridge adjacent to the existing bridge. The new bridge was initially used as a detour while the deficient bridge was demolished. Once demolished, the new bridge was then closed to traffic and needed to be slid into the position of the original bridge.
Bridges