What is a rendering test?

The rendering test is a periodic load test and calibration of the mooring winch brake at a load based on the equipment number (EN) assigned to the vessel.

Why is rendering testing important?

During mooring operations the winch brakes and mooring ropes need to hold the vessel safely against the quay under correct tension, even when subjected to external forces such as:

  • changing winds and currents,
  • passing vessels,
  • water agitation or wave action,
  • excessive heeling and trim of the vessel.

Incorrectly calibrated brakes can lead to the tearing of mooring ropes due to excessive tension or damage to winch equipment, which in turn carries the risk of serious injury or even death to personnel. Rendering testing helps to minimise these risks, ensuring that the vessel is held safely at the quay and that the mooring system operates correctly under critical conditions.

Our approach to rendering test

To meet the demands placed on shipowners by maritime quality and safety monitoring bodies, such as RightShip (RISQ), we have developed a solution to performe the rendering test (test of the brakes on mooring equipment). As many winches on ships are not designed to perform such a test, we have developed a universal test kit that:

  • can be adapted to almost any winch,
  • is simple to assemble and operate,
  • includes detailed test instructions and individually calculated test parameters, allowing rendering tests to be performed by the ship’s crew in the future.

Developing demand for rendering tests

While mooring winch rendering testing is a practice well known and used in the tanker industry, an increasing number of bulk terminals (particularly those dealing with cargoes such as iron ore or coal) are requiring vessels calling at them to carry out such tests. Research in Western Australian ports indicates that the lack of regular rendering tests, or their improper performance, was a common cause of mooring rope failures and port incidents.

The rendering test is a response to the growing needs of the maritime industry. Rendering testing allows shipowners to ensure maximum safety of mooring systems and compliance with international standards and minimise the risk of failure during port operations. Our service of providing a universal test kit per vessel and precisely prepared documentation supports them in this task.

Why should You cooperate with us?

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clients around the world

In house Tool shop

A Complete Workshop and Service Base

We have fully equipped, in-house workshop and storage halls, as well as dedicated test stations for repaired equipment. Additionally, our portable technical facilities enable us to provide servicing and repairs in ports and shipyards worldwide. We possess a range of diagnostic and measurement devices that allow us to conduct on-site diagnostics directly at the client’s location.

Our capabilities include:

  • Mobile diagnostic workshop for hydraulic systems
  • Mobile units and equipment for measuring oil contamination, flushing installations, and filtering oil using filtration units
  • Load testing of cranes using Water Bags