TPT January 2016

Welding

Protem pre-fab machines THE BB high-speed bevelling benches from Protem are powerful and reliable machines used for achieving high quality weld end preparation in just a few seconds. This equipment is used for projects that require a near-perfect weld end preparation. stainless steel, and exotic alloys such as Incoloy, Hastelloy, duplex and super duplex.

which can accept several types of tool blocks. The CTA machines have earned an excellent reputation around the world in a variety of industries – nuclear, power generation, oil and gas, tube processing, prefabrication workshops, pipelines and the chemical industry. Protem has designed a wide range of portable equipment for welding preparations on tubes, pipes and pipelines. The range of equipment includes ID mount bevellers; OD mount bevellers; orbital tube cutting and pipe cutting and bevelling equipment; high-speed cutting, facing, bevelling, and counterboring equipment. These machines can be pneumatically, hydraulically or electrically driven. The TNO machines cleanly and efficiently cut and bevel tubes and pipes with diameters ranging from 4.5" ID to 72" OD (114.3mm ID to 1,829mm OD). These orbital cutting and bevelling machines are specially designed to fit piping or tubing prefab applications on the job site or at the fabrication workshop. Protem claims that the machines cut and bevel heavy wall pipes faster than any other machine.

The CTA series machines are able to machine pipes within a range of 1" to 36". These are ideal for production and prefabrication requirements. The CTA machines save space in workshops and can be integrated in production lines. Tubes and pipes up to 36" can be cut and bevelled within a few seconds. Machines capable of machining larger diameters are also available upon request. Machining is performed in a cold cutting process that does not produce a heat affected zone. The result is extremely high quality weld end preparations. To machine the pipe ends with the CTA series machine the tube to be cut and bevelled is held stationary. The CTA’s OD clamping devices keep the pipe immobilised during machining operations. The tool bits, mounted on the rotating plate, are put into rotation around the tube to perform the cut. The forward and reverse feed of the tool bits are handled mechanically during the rotation of the tool holder plate. While cutting, the machine performs bevelling on both ends. The tool holder carriages, mounted on the rotating plate, are equipped with housings

The machines can be used in virtually all industries where the weld quality is critical and projects must stay on schedule. These machines are easy to install and are quickly adjustable to any size of tube or pipe within the machine’s range. They will machine the pipe ends in one smooth pass in a matter of seconds. This makes them suitable for use on heat exchangers, pipeline construction and maintenance, onshore and offshore construction and maintenance, prefabrication workshops, shipbuilding and many other applications. The BB machines are used for bevelling, facing and counterboring operations. These operations can be processed individually or simultaneously. They will perform repeatable high quality bevels with an I, V, J or X shape, or compounded bevels. Suited for either manual or automated welding processes, these machines can achieve perfect weld preparations on virtually all materials: carbon steel,

Protem SAS – France Website: www.protem.fr

The BB high speed bevelling bench

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J anuary 2016