In order to provide customer with the best suitable solution and lowest cost, Dredge Yard specialists designed the dredge ball joints in 6 different types, giving variations of tilting angle from 15 to 18 degrees and duties for operating from 10 bar to 30 bar. All the details about the sizes can be found on Dredge Yard site www.dredgeyard.com.
The materials used for the production depends on each part of the dredge ball joints. Because the case and the ball need a high elongation and impact value, cast iron of a manganese alloy is used. The material needs for the gland are cast iron of a chromium, nickel and molybdenum alloy that provides a high tensile strength, high yield point and high hardness values. For wear resistant properties of the liner, ductile manganese iron or hard chromium iron is used.
The production of dredge ball joints is done at a high quality and experienced foundry with the latest production facilities to ensure high quality casting and quick delivery time. To ensure that all parts are identical and interchangeable, the patterns are made from aluminum or hard wood. All castings of dredge ball joint are heat treated according to ISO and ASTM standards and they are measured and tested before machining. After machining and before releasing for the transport, all the products are measured and tested again.
During and after production all products undergo a systematically testing including chemical composition and mechanical properties test, measurement test of all dimensions after casting, ultra sonic test, magnetic particle test, surface roughness test and dye penetrant inspection for critical parts, measurement test of all dimensions after machining, hardness test, assembly and interchange ability test, and visual inspection for all parts.
Dredge Yard management has related that, “All measurements and tests are recorded in our database and our customers are welcome to witness any test in our production facilities.”
Dredge Yard also offers the opportunity of choosing additional options for the production of dredge ball joint as they can be provided with welded pipe and flange execution, with gland liner, ball liner, extra or special lifting lungs or only with different type of locking.
This wide range of dredge ball joints bring a lot of benefits such as easy assembly or dis-assembly, low required maintenance, quick fix and release of locking. The replaceable liners are made from wear resistant materials and there is a very low friction between ball and gland due to grease grooves and polished ball and gland face.
All dredge ball joints are designed, produced, assembled, tested, painted, greased, packed and transported under close super vision of Dredge Yard team of engineers and quality control.
Dredge Yard emphasizes on after sales and ensures total customer satisfaction delivering dredge related products with a high ratio of reliability and value for money.
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