Draft Survey Expertise: Precise Ship Cargo Weight Determination
Ruswal Global Inspections, with over 25 years of industry experience, provides professional draft survey services to shipping companies across multiple regions. Our certified experts deliver precise assessments of bulk cargo weight, adhering to international maritime standards and utilising state-of-the-art equipment for accurate results.
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All You Need to Know About Draft Surveys
What is a draft survey?
A draft survey is a marine procedure used to precisely calculate the weight of bulk cargo—such as Steel products, scrap metal, or grain—being loaded onto or discharged from a vessel. This process is grounded in Archimedes' principle, (A submerged object experiences an upward force equal to the weight of the fluid it displaces). By measuring the ship's draft—the vertical distance from the waterline to the keel—before and after the cargo transfer, the draft survey determines the change in the vessel’s displacement and accurately determins the cargos weight. To guarantee accuracy, adjustments are made for factors such as ballast water, fuel, and other consumables.
Widely recognized for its cost-effectiveness and reliability, the draft survey minimises discrepancies in cargo weight calculations and ensures compliance with international maritime standards.
Why choose Ruswal Global for Draft Surveys?
- Experienced Surveyors: Our draft surveyors at Ruswal Global have significant expertise conducting draft surveys on a variety of vessel types and cargoes.
- Precise results: We use cutting-edge equipment and software to provide reliable and accurate results
- Global Standards: Our draft surveyors are aware of and adhere to international standards and regulations.
- Hassle-Free Process: We know your time is valuable. Our draft surveyors work quickly and quietly, blending into your day-to-day activities, without slowing things down or getting in the way.
- Comprehensive Reports: We supply the client with extensive, easy-to-follow reports with the crucial information you need to verify the weight of your bulk cargo, and make quick and informed decisions.
Our draft surveyors carry out various measurements and input them into Ruswal’s unique draft survey reporting system. This report calculates the weight loaded (or discharged) using the internationally standardised draft survey protocol. All our calculations are cross-checked manually. We then compile the resulting findings into a draft survey report containing all of the details obtained during the survey. The client can use this report as the basis for quantity certification of the cargo, a copy will also be issued to the vessel and/or the client.
Don’t leave cargo weight to chance!Contact us today to discuss your draft survey needs.
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Services
Loading Supervision
Discharge Supervision
Pre-Shipment Inspection
Container Inspection
Sampling and Testing
Pre-Purchase Inspection
Cargo Inspection
Scrap Metal Inspection
Steel Products
Food Products
Fertilisers
Fuels
Grain
Paper
Coal
Machinery
Marine Survey
Draft Survey
Bunker Survey (BQS)
Condition Survey
On/off hire
Hatch cover testing
Ship Superintendency
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