Marine Technical Supplies During Port Calls: How to Minimize Turnaround Time

In modern naval operations, port time is one of the most significant costs for shipowners. Each hour at berth can cost between 500 and 5,000 USD depending on the vessel type and terminal. Optimizing technical supplies during a port call is therefore a directly economic decision as well as an operational one.

Marine technical supplies cover all materials, spare parts, and equipment that are neither food nor fuel. The main categories are: electrical and electronics (fuses, relays, LED navigation lights, batteries, alarm systems), marine hardware (stainless steel fasteners, rigging, slings, shackles, chain), paints and coatings (antifouling, anticorrosive, marine enamel, thinners), onboard safety (fire extinguishers, PPE, harnesses, IMO signage), refrigeration and HVAC systems (refrigerant gases, filters, belts, valves), and cleaning and maintenance materials (bilge cleaners, industrial degreasers, oakum and sealing materials).

Preparing the technical list before arrival is the single most important factor in reducing waiting time. The chief engineer should review onboard stock at least 72 hours before ETA and prepare the supply list with technical reference or part number whenever possible. The more specific the list — including brand, model, technical specification, and quantity — the faster the chandler can quote, confirm availability, and prepare the order. A generic list ("I need red antifouling paint") inevitably generates clarifying questions that consume time.

Delivery times for technical supplies at Caucedo and Río Haina vary significantly by category. General consumables (hardware, cleaning, standard paint) are typically available for delivery in 4-8 hours. Specific machinery spare parts may require local inventory verification and in some cases express import, which can extend the timeline to 24-48 hours. For critical spare parts not available locally, the chandler can manage import from Miami (1.5 hours by air) with a 24-36 hour delivery time if the order is placed with sufficient advance notice.

A highly recommended practice for shipowners with regular Caribbean routes is to establish a "technical profile" of the vessel with the chandler: a list of the most frequently needed critical spare parts, standard brands and references the vessel uses, and a minimum stock agreement with the chandler. This drastically reduces response time on future port calls.

Finally, logistical coordination within the terminal is crucial. Some terminals — especially Caucedo — have access restrictions for supply vehicles at certain times or in certain zones. The chandler must be aware of these restrictions and account for them when scheduling delivery. Early communication with the port agent about the assigned berth allows for precise planning of the delivery window and avoids the vessel waiting for supplies rather than supplies waiting for the vessel.