The goal: reposition a Liebherr Tango lightweight dockside crane. The Liebherr Tango crane is light and flexible. Unlike typical dockside container cranes, the landside legs are pinned at the top. The crane loses stability when its landside legs are not supported by the gantry rail. Liftech successfully designed a scheme to move the light crane safely on dock.
Archives: Projects
Port of Oakland Crane Modifications and Relocation
A new client at the Port of Oakland required post-Panamax cranes. The Port had two Hitachi Panamax cranes available at the client’s berth and a Paceco Panamax low profile crane at another berth. The two Hitachi cranes were raised 20 feet.
Jacking Frame for Raising Container Cranes
The existing jacking equipment for raising container cranes required a long time to set up and disassemble. Some equipment imposed unacceptable loads on the dock. Liftech designed a jacking frame that enables BIW to raise cranes in less than a week. The frame is capable of raising cranes 30 feet, can withstand up to 75 mph winds with the crane raised, and is supported on crane sill beams.
Port Melbourne Crane Relocation
Liftech designed a lifting scheme and analyzed the crane structure for transporting a Paceco crane across a channel. The crane was lifted at four points using two shipboard derricks. It was secured outside the ship for transport.
Buenos Aires Container Terminal, Relocation of Liebherr Container Crane
Privatization of Buenos Aires’s container terminals resulted in the relocation of River Plate Container Terminal, an Argentine stevedoring company, to new facilities within the harbor. Liftech designed a scheme to relocate two Liebherr cranes and one Morris crane. Each fully erected crane was lifted with a 1,000-ton capacity floating crane using a specially designed lifting truss.
Port of Oakland Crane Repair
On February 7, 1997, a ship struck a Krupp crane at the Port of Oakland. The bow hit one of the waterside legs just above the portal beam, about 45’ above the rail. The impact pushed the waterside legs 35” to the right and 30” toward the land. Because the wheels remained on the rail, the sill beams at the waterside and landside partially separated from the equalizer beams.
Port of Oakland Crane Procurement
The Port of Oakland needed new cranes to maintain state-of-the-art equipment. The port purchased the first three new cranes from ZPMC, a relatively new vendor in the United States at that time. Liftech Consultants Inc. and McKay International Engineers assisted Port of Oakland engineers with the procurement specifications, evaluated technical portions of the bids, and reviewed the designs and quality control documents.
Kaohsiung Post-Panamax Articulated Boom Cranes
Hanjin Heavy Industries provided three cranes for Hanjin Shipping’s new terminal in Kaohsiung. The cranes have an outreach of 52 m (170’-6”) and a rated load of 40.6 t (40 LT). Due to the nearby airport, the height at the terminal is restricted to 70.35 m (230’-10”).
Port of Singapore Machinery-on-Trolley Crane Design
Liftech worked closely with MHI engineers to optimize the crane weight and structural performance of both the main crane structure and the trolley. The resulting structural design meets all of PSA’s stringent deflection requirements. The boom features a trapezoidal monogirder design with a single forestay.
Keelung Crane Refurbishment
When it became possible for shipping lines to economically avoid the Panama Canal, ship size increased from 13 containers wide to 17 containers wide. Ships could carry thirty to forty percent more containers. The pictured Mitsui Panamax crane was converted to post-Panamax configuration.