Tag: Crane Projects

Maher ZPMC Crane Raise, Elizabeth, New Jersey

Maher Terminals planned to increase the lift height of their 2006 ZPMC STS cranes from 120 ft to 165 ft (36.6 m to 50.3 m), an increase of 45 ft (13.7 m), to accommodate larger vessels calling at their Elizabeth, New Jersey, terminal. Liftech helped Maher by providing structural engineering services including reviewing wheel loads and stability, preparing structural and…

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Manzanillo International Terminal Crane Raises, Republic of Panama

Manzanillo International Terminal (MIT) hired Global Rigging and Transport (GRT) to increase the lift height of eight ZPMC ship-to-shore (STS) cranes located in Panama, and potentially for other terminals in Mexico and Chile.  Liftech provided design review for structural modifications to increase the lift height of two STS crane designs.  Earlier, Liftech assisted MIT with the initial procurement of these…

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Maher Liebherr STS Crane Design Review

Maher Terminals purchased four ship-to-shore cranes from Liebherr. Two of the cranes have a longer outreach and heavier rated load. Liftech provided crane procurement services including a review of the structural design of the cranes and trolleys, as-needed review of the mechanical design, and crane manufacturing audits at Liebherr’s facilities in Killarney, Ireland.

MES Barge Crane for Matson with Rotating Boom and Headblock

Liftech helped design this Mitsui Engineering and Shipbuilding Co., Ltd. barge crane with a rotating boom and headblock for Matson. The headblock hangs from a rotating hoist platform. During normal operations, when the boom rotates, the headblock rotates relative to the boom so that the headblock does not rotate relative to the vessel.

TRP ZPMC Crane Boom Extension

Terminales Rio de la Plata S.A. purchased two ZPMC cranes in 2005 and 2007 for their Buenos Aires terminal. The cranes, with 65 LT capacity, 18.5 m rail span, and 36-m lift height, had a 45-m outreach. Liftech provided engineering services to TRP to extend the outreach by 6 m to 51 m. Liftech initially provided a study, which verified that the calculated wheel loads for the crane with boom extension were within the allowable values, and the modified cranes met the specified stability requirements.

POLA STS Crane Portal Frame Fatigue Study

Fatigue cracks were found in the portal beams of Noell cranes at Pier 400, Los Angeles. Cracking had occurred most frequently at the end of an internal stiffener where the portal beam tapered, and at seafastening lugs that remain on the cranes at the portal-to-leg connections. Other cracking had occurred in the main equalizer brackets.

APMT POLA Machinery Trolley Modification

APMT operates ten Noell machinery-on-trolley cranes at their Pier 400 terminal in Los Angeles. The original trolley structure was torsionally rigid. Some of the diagonal members cracked due to warping caused when one wheel is out-of-plane to the other three. Liftech provided design modifications to reduce the stresses in the members due to warping.

San Antonio Terminal Paceco Crane Damage Assessment and Repair

Two Paceco cranes operated by San Antonio Terminal Internacional at their San Antonio Terminal in Chile suffered damage when the cranes were struck by departing ships in the aftermath of the February 2010 magnitude 8.8 earthquake. One crane suffered significant damage to the boom and the portal frame. The other crane suffered significant damage to the boom and the trolley.