The Typical Approach — and Why It Creates Bottlenecks
Most modified container manufacturers start with one of two approaches: an overhead crane or third-party crane hire. Both work. Neither works well at scale.
Overhead gantry cranes provide reliable lifting capability, but they come with serious constraints. They require significant structural investment — reinforced floor, support columns, overhead clearance. They consume valuable floor space. And they anchor your production to a fixed location: the container can only be lifted where the crane can reach.
For a manufacturer building a handful of units per year, this may be acceptable. But as production volumes grow, the gantry crane becomes a bottleneck. Every lift ties up the crane. Every container has to be in the right spot. And expanding capacity means expanding the crane infrastructure — a major capital project.
Third-party crane hire avoids the capital investment but introduces different problems. Each lift requires scheduling, coordination, and cost — typically thousands of dollars per mobilization. Production timelines become dependent on a third party’s availability. And for safety-conscious operations, every crane visit means managing a contractor on your premises.
There’s a third approach some manufacturers rely on: high-capacity forklifts. These are widely used and effective in yard environments, but become more challenging inside manufacturing facilities. Their size and turning radius limit manoeuvrability in confined spaces, and they introduce additional health and safety risks — including noise, exhaust fumes, and the potential to strike nearby personnel or equipment.
They also have limitations when handling modified or longer containers. Many high-capacity forklifts are not well suited to containers beyond 20’. What works well in open yards can quickly become restrictive on the factory floor.
