IMPA: 370301

Marine Sounding Leads for Draft Surveys

A sounding lead is an essential tool for any vessel, used to determine the depth of water beneath the hull and to measure the draft during cargo loading and discharging. This IMPA 370301 sounding lead is precision-manufactured from high-density material to ensure accurate readings and long service life in demanding marine environments. Its tapered, weighted design allows it to descend quickly and provide reliable data for safe navigation and efficient port operations.

Constructed with durability in mind, the lead features a heavy-duty build that resists corrosion and wear. It is available in a range of weights to suit different applications, from small vessels to large commercial ships. The lead is typically used with a marked line, enabling the user to read the depth directly. Whether you are a captain, chief officer, or marine surveyor, this sounding lead is a reliable tool for draft surveys, ballast checks, and general depth measurement.

At ALL-K MARINE Ship Store, we supply high-quality sounding leads as part of our comprehensive range of nautical equipment. As a trusted ship chandler, we ensure that every product meets the necessary standards for marine use, so you can purchase with confidence. Order today for fast dispatch to your vessel or port.

Key Features

Technical Specifications

SpecificationDetails
Product NameSounding Lead
IMPA Code370301
CategoryNautical Equipment
MaterialHigh-density lead alloy
Available Weights2.5 kg, 3 kg, 5 kg, 7 kg, 10 kg
ShapeTapered, with sampling groove
MarkingsDepth marks etched on the side
AttachmentsEye for secure line attachment
ApplicationDraft survey, depth measurement, hull inspection

Frequently Asked Questions

What is a sounding lead used for?

A sounding lead is used to measure the depth of water under a ship's hull and to determine the vessel's draft during loading, unloading, or ballast operations. It is also used to identify the type of seabed for anchorage safety.

How do I choose the right weight of sounding lead?

The choice of weight depends on the water depth and current conditions. Lighter leads (2.5–5 kg) are suitable for shallow water and moderate currents, while heavier leads (7–10 kg) are recommended for deeper water or strong tidal flows. Always consult your ship's operational requirements.

Does the sounding lead come with a line?

The sounding lead itself is supplied without a line to allow you to use your preferred rope/wire. You can attach a marked lead line to the eye of the lead for depth reading. Marked lines are available as a separate item.

Is the sounding lead corrosion resistant?

Yes, the lead is made from high-density lead alloy, which naturally resists seawater corrosion. The integrated eye and markings are designed to remain legible in marine environments.

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