Port & Logistics

The bottleneck in a container terminal is almost never the quay crane; it is usually the yard. If the gantry's move rate and the number of terminal tractors do not match the vessel discharge rate, the investment at the quay does not return.

Three numbers that decide everything

• Target discharge rate in moves per hour
• Average distance from quay to stacking block
• Stacking height and rows per block

Terminal tractors

In a short cycle with constant stop-start, the automatic transmission and the hydraulic two-way fifth wheel matter more than engine power. The HOVA terminal tractor, with its Allison 3500 transmission and 40 t pulling capacity, is built for exactly this duty pattern.

Gantries and spreaders

Empty hoist speed, more than loaded hoist speed, sets the cycle time — because for half of every cycle the spreader travels empty. Span, stacking height and row count must be derived from your actual yard layout, not from a standard configuration.