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Dredge Ball Joint Functional Test: video

Dredge Yard specializes in manufacturing and supplying of dredgers and dredging components. Dredge ball joint is one of the component types we specialize in. Our manufacturing process takes place in the Republic of Turkey. It includes casting and heat treatment of all components, followed by machining to the finest tolerances.

We always conduct heavy duty functional tests, in order to ensure dredging equipment of the highest quality. One of such tests is called the dynamic dredge ball joint test. During the dynamic test, dredge ball joints are tested at a pressure, which is above the required design operating pressure. Additionally, while the ball joint is pressurized, a hydraulic cylinder applies a movement of the ball joint. This is done to simulate the working conditions in the dredge field at the most severe conditions. Severe conditions can include strong currents and waves, maximum dredge pipe length and highest pressure that the dredger can achieve. Therefore, the dynamic test is done to ensure component durability under all circumstances.

In February 2019, Dredge Yard delivered 50 dredge ball joints to the United Arab Emirates. These ball joints were suitable for a pipe with internal diameter of 750mm and discharge pressure of 30 bar. Therefore, during testing, we pressurized the ball joints to over 30 bar, in order to ensure that they can withstand maximum forces.

The video below provides an insight into our dredge ball joint dynamic test:

 

Dredge Yard expands its fabrication capacity

New machines

Dredge Yard recently acquired and installed additional new machines in its fabrication facility in Turkey like CNC vertical lathes and CNC Pattern Maker. This is to increase its capacity in the machining and assembly shop and to align with the capacity of the casting and fettling.

Focus on production

Dredge Yard, with its subsidiary in Izmit city in Turkey, is focusing on production of components and dredge equipment needed for the dredging and mining industry. Some of the main components supplied from Dredge Yard Makina are dredge pumps, dredge ball joints, turning glands, swivel bends, dredge valves, tumbler blocks, cutter heads and many others.

Dredge Yard is also co-operating with many partners in the region for the casting and machining in order to cope with the high demand of Dredge Yard’s products and keep its short delivery times.

Dredge Yard is able to supply components in several cast steel and cast iron, in soft and hard wear resistant materials that can be used in dredge pumps, ball joints, bends and many others. Those components are cast with Dredge Yard’s partners and fettling is done in the facility in Izmit. Once the machining is done, all products are thoroughly tested, inspected and assembled at Dredge Yard work shop and made ready for transport.

Shorter delivery time

The recent capacity increase will allow Dredge Yard to make its own casting patterns and machine more parts up to the size of 2.5 meter by itself and shorten the delivery time and save transport costs. The shorter delivery time and the cost saving will contribute to the benefit and satisfaction of Dredge Yard’s customers.

Dredge Yard’s Production Manager, Kabi Eisa says: “Dredge Yard is pursuing to procure more machines in the near future that will increase the manufacturing capacity aiming to become faster, flexible and more efficient maintaining the same high quality of the products”.

Besides Turkey, Dredge Yard is producing dredge components and equipment in other countries as The Netherlands, Romania and UAE.

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Dredge ball joints deliverd to Saudi Arabia

Dredge Yard designed and manufactured the dredge ball joints delivered to Saudi Arabia.

The ball joints can handle a working pressure of 20 bar. They are also suitable for a discharge pipe diameter of 650mm. Wear resistant liner is assembled in the case to increase the life time of the ball joint. A rubber seal is provided in the case to make the ball joint water tight during pressure. Both of them, the case liner and the rubber seal, are considered wear parts and therefore can be easily renewed.

Range of Ball Joints

These types of ball joints that have been delivered to S.A. have a 15 degrees tilting angle to all directions. The grease grooves are provided in the stiffened gland to reduce corrosion and the friction between the gland and the ball. The ball joint is provided with one locking pin to prevent the gland from any sliding movement during operation.

The ball joint will be used for transport of sand, gravel and stones from the cutter suction dredger.

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Dredge ball joints 1000 and 900 delivered by Dredge Yard to MEDCO in Qatar

The dredge ball joints, delivered to MEDCO, for the pipes size of 1000 mm are suitable for 30 bar working pressure. While the ball joints for the pipes size of 900 mm are suitable for 20 bar working pressure.

Dredge Yard facilities

All ball joints are designed and produced in Dredge Yard’s facilities with partners in The Republic of Turkey. There they used the latest production technologies and casting expertise. Both types undergo thorough testing and inspections during and after production. Examples of these tests are simulating working pressure and dredge ball joints movements.

Dredge Yard is making steady progress with the expansion plans for the production and assembly of dredging components needed for dredgers and dredge pipe lines.

Production of dredge ball joints

Dredge Yards team of engineers designed, managed and controlled the entire production. For that they relied on their vast experience in casting, machining, assembly and inspections. Our customers may witness any test in Dredge Yard’s production facilities.

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