Applications
Enerpac has gained unique expertise in delivering hydraulic solutions for the controlled movement and positioning of structures.
Maintenance on the Neeltje Jans storm surge barrier with Enerpac torque
Maintenance of the hydraulic cylinders in the Neeltje Jans storm surge barrier's sluices that enable controlled opening and closing of the heavy sluice-gates. After being exposed to the elements for many decades, the 85mm bolts on the cylinder heads can only be loosened and tightened in a controlled manner with breakaway torques.
Infraestructura
Box Girder Launching System on the I-95 Whittier Bridge
Constructed in 1951, the John Greenleaf Whittier Bridge is currently in the process of being replaced by a new bridge compliant with current safety standards. The high traffic bridge connects Newburyport and Amesbury via I-95 over the Merrimack River. Walsh Construction is employing a rail mounted gantry crane system to simplify the placement of the steel bridge girders and precast deck to create the approach spans. Two 6 foot tall, 960 foot long temporary support steel box girders will be launched across temporary piers to create a rail system for the gantry crane to operate on during the approach span construction. The steel box girder arrangement will be moved after the placement of each approach span. It’s critical that the two 550 ton temporary steel support box girders move in unison in order to prevent binding or misalignment of the gantry crane operating on top of the rail system.
Puentes
EVO Synchronous Lifting System lifts a 200 tonne wheel loader safely and efficiently despite uneven ground
Lifting heavy machinery such as haul trucks and wheel loaders can be a challenging task without the right system in place. The process of assembling and transporting an over-dimension vehicle requires several steps, some of which may involve locating and positioning the lifting equipment at the appropriate lift points, removing the wheels, attaching wheel stands, and lowering the vehicle to the ground followed by removing the lifting equipment. Thereafter, a multi-wheel trailer would be placed under the vehicle and the wheel stands removed before it is ready for transportation. Using short stroke cylinders without synchronous lifting would be time-consuming, cumbersome and could introduce additional risk if the load is lifted at different heights.
Mining
Lifting Precision of a Hydraulic Gantry Key to Humber River Railroad Bridge Reconstruction
When leading Canadian heavy lift contractor, Western Mechanical, was asked to assist in the replacement of the Humber River railroad bridge it selected an Enerpac hydraulic gantry for the precision lifting and replacement of bridge spans over an 8-week period.
Rail
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.
Construcción naval
A safe and efficient way of removing large diameter reamers with a SL100 Hydraulic Gantry System
The removal of raise bore reamers has traditionally been a hazardous, complex, costly and time-consuming process.
Mining
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.
Puentes
Controlled Tightening on Dump Truck Suspension Struts
The maintenance team needed to replace the suspension strut bolts on 777F, 785D, 789D and 793F dump trucks. Due to the confined location of the suspension struts there was limited space for accessing the bolts. Existing methods of using flogging spanners often took several hours to replace the nuts, caused minor injuries to hands and the torque was not accurate.
MinerÃa
Lifting Heavy Mining Trucks Quickly and Safely using the PowR-Lock Portable Lift System
Lifting trucks for maintenance and repair at mining sites and in the shop is a common occurrence. Safety while performing these operations is always a concern, and it’s also important to do the job efficiently and quickly.
MinerÃa
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.
MinerÃa
Hydraulic Jacking System Assists Construction of the Honolulu Rail Transit System
In 2012, the Honolulu Rail Transit Project began the construction of a 20-mile elevated rail line. The rail system seeks to alleviate significant traffic issues affecting Hawaii’s most congested city. Kiewit was tasked with the design and construction of the elevated rail guideway. In order to accelerate the construction timeline and maintain a high-level of quality, Kiewit selected a segmental precast span-by-span construction technique to complete the project.
Rieles