Manual Jacking and Skidding Used for Heavy-Lift Placement
At the National Grid Station in Karachi, Star Shipping Pakistan has completed the delivery and manual unloading of a large auto-transformer main body. The operation involved positioning the transformer on its foundation using a combination of jacking and skidding techniques, ensuring the equipment was set in place safely and precisely.
The transformer arrived on a super low-bed trailer, a standard transport method for heavy industrial cargo. Once at the site, the rigging crew used certified hydraulic jacks and skidding tracks to move the transformer from the trailer onto its foundation. The work was completed within a few hours of arrival.
According to site engineers, operations of this kind require detailed planning and controlled execution. The process demands close coordination among operators to ensure balance and gradual movement during the transfer from trailer to base.
Safety and Technical Standards
The handling of heavy electrical equipment such as transformers involves strict adherence to safety and certification standards. Rigging crews typically undergo specialized training to operate jacking systems and manage load distribution.
At the Karachi site, the transformer was transferred onto a concrete foundation that had been prepared in advance. Once the load was aligned, the jacks were carefully lowered, and the transformer was secured in position for subsequent installation by technical teams from the grid operator.
Heavy-Lift Operations in Context
Such operations are becoming more common across Pakistan’s expanding power infrastructure network. The delivery and placement of large transformers form a critical step in the upgrade of substations and transmission systems.
Manual jacking and skidding are frequently used when cranes are impractical or when precise alignment is required. The process, while slower than lifting by crane, allows for controlled horizontal movement of extremely heavy cargo.
