Complex industrial projects — involving oversized components, difficult access conditions, and precision installation requirements — demand rigging solutions that go well beyond standard crane-and-sling operations. When a component weighs hundreds of tonnes, must fit through a narrow building opening, and be positioned to millimetre accuracy, every aspect of the rigging approach must be engineered specifically for the job. This article explores the rigging solutions that make complex industrial heavy lifts possible in South Africa.
What Makes Industrial Heavy Lift Projects Complex?
Several factors combine to make certain industrial projects significantly more challenging than standard rigging work. These include very high load weights — sometimes exceeding the capacity of any single available crane — confined or restricted access conditions where standard crane positioning is not possible, precision installation requirements where tolerance for error is minimal, coordination requirements with other active site operations, and tight project timelines where any delay has significant commercial consequences.
Rigging Solutions for Very Heavy Industrial Loads
When a single crane cannot lift the required load, rigging teams have several options. Tandem lifting — using two cranes in coordinated operation — can effectively double available capacity (with appropriate derating). Hydraulic jacking and skidding systems allow loads to be raised and moved horizontally without crane lifts, making them ideal for loads that are too heavy to crane but accessible from below. For the very largest loads, self-propelled modular transporters provide a road transport and positioning solution that can handle virtually any load that can be physically manufactured and shipped.
Rigging Solutions for Confined Access and Restricted Environments
Confined environments require creative rigging solutions. Hydraulic gantry systems can be erected within a building to provide crane-like lifting capability without requiring external crane access. Chain blocks rigged from structural steelwork provide controlled lifting and positioning in spaces no mobile crane can reach. Machine skates and rollers allow horizontal movement of loads too heavy for manual handling across flat surfaces. And custom lifting frames can be designed and fabricated to allow a machine that has no suitable lift points to be rigged safely from its structural framework.
How Is Precision Placement Achieved for Complex Industrial Installations?
Precision placement in complex industrial installations is achieved through a combination of controlled rigging (using chain blocks and jacks for fine movement), precise measurement (using laser levels, theodolites, and digital alignment tools), and careful coordination between the rigging team and the installation engineers. Final placement often happens in stages — the rigging team brings the load to within close range of its installation position, then transfers to precision jacking and positioning tools for the final millimetre adjustments. The riggers work in close communication with the site engineer or machine manufacturer’s representative throughout this phase.
Reef Rigging’s team has the experience and equipment to deliver solutions for South Africa’s most complex industrial heavy lift requirements. Contact us to discuss your project challenge.
Frequently Asked Questions: Complex Industrial Rigging Solutions
What is a hydraulic gantry system and how does it work?
A hydraulic gantry system is a portable lifting device consisting of two or more vertical hydraulic strands (towers) supporting a horizontal lifting beam. The load is suspended from the beam, and the hydraulic strands extend simultaneously to raise the load. Multiple strand sets can be linked for very heavy loads. Gantry systems are used inside buildings where overhead cranes are unavailable, and for loads that must be raised only a limited height for placement on transport or final installation. They can be easily transported and assembled in locations inaccessible to mobile cranes.
What is hydraulic skidding and when is it used?
Hydraulic skidding involves mounting a heavy load on a series of flat steel skid beams, then using hydraulic push cylinders to move the load along the skids in precise increments. The load can be moved horizontally in any direction by repositioning the skid beams and cylinders. Hydraulic skidding is particularly useful for moving very heavy loads through openings that are too narrow for crane operations, or for precise lateral positioning of equipment that must align with existing foundation bolt patterns or process connections.
How are lift points determined for equipment that has no factory-fitted lifting lugs?
When equipment has no factory-fitted lifting lugs, the rigging team must identify alternative structural attachment points and verify that the structure at those points is strong enough to carry the lifting loads. This typically requires a structural assessment by a qualified engineer who reviews the equipment’s drawings and calculates the capacity of the proposed lifting points. In some cases, temporary lifting lugs are welded to the equipment structure by a qualified welder, with the weld design checked against the lifting loads before use. The entire process is documented in the lift plan before any lift takes place.