TPT July 2012

Technology News

Cutting tubes with a diameter of 76mm regardless of thickness

1,600 pieces per hour. The shortest cutting length is 25mm without pulling apart and 55mm with pulling apart, all with a residual length of 110mm. On top of that, more machines for cutting tubes with a diameter of up to 76mm are available. Separated parts can be sorted in up to ten separate containers. As the tubes are pulled apart when being separated, it is ensured that they will not get constricted or deformed in the joint. Any material can be processed in the way as required. Being a future- orientated solution provider, transfluid is pushing ahead the technological progress in tube cutting. transfluid Maschinenbau GmbH – Germany

avoided in the production process or when large amounts of tubes shall be separated. “We have installed our cutting equipment over many years in automated manufacturing units and make them ready for the future,” explains Gerd Nöker, CEO of transfluid. The systems are extremely powerful and convinces through amazing cutting quality independently of material and wall thickness. The software is specially programmed for optimised cutting as to ensure that almost no waste originates from the process. Chipless cutting equipment can be individually equipped for manual loading with a tube bunker or for cutting from the coil with a straightening line. The systems provide a cutting output of max Ø30 x 3 for stainless tubes and offer a production speed of up to cutting technology allows them to achieve the lowest total cost of operation while maintaining high production rates and minimising the time required to change tooling or to program new cut lengths. The Haven technology easily integrates with secondary chamfering or de-burring and works well on a variety of carbon steels, 400 series stainless steels, and most alloys commonly used in manufacturing. Haven currently produces five standard Dual-Blade shear tube recut machines. Through the addition of numerous available options and features, the tube cutting technologies can be customised to nearly any tube manufacturing process. Haven has standard models that are capable of handling material as small as 3mm or as large as 127mm round (up to 95mm in square), with wall thickness from 1.5 to 4.2mm, and to cut lengths from 50 to 3,000mm (although shorter or longer lengths are available with optional modifications). Haven’s experienced designers and engineers are able to adapt, modify or design machines to fit companies’

READY-to-use solutions are only as good as their integrated process steps. Offering tailor-made concepts to clients who need their tubes to be processed means for the South- Westphalian/German solution provider transfluid that all integrated processes must document current technological progress – from semi-finished products to ready products. High expectations, but this is the only way to guarantee the right results for special requirements. The company is therefore developing all fields in its portfolio, so that it can offer the machines that are needed. In the further development special attention is paid to the chipless tube cutting technology. This method is highly economical when work proceeds from the coil, when chips are to be HAVEN Manufacturing Corporation’s Dual-Blade cutting method utilises a three-stage cutting method. The tube is first clamped with custom dies, which are designed to hold the material to be cut securely and establish a precise cutting angle. A specially engineered notching blade then makes a shallow scarfing cut, which is performed through a precise cutting action that penetrates the outside layer of the tube just deep enough to allow a second parting blade, in step three of the process, to enter and cut the material without the stress and potential distortion caused by the initial penetration of the material. The total cycle time is less than one second per cut, and many Haven customers safely and reliably achieve production rates as high as 4,000 cycles per hour. Tubes can be cut to extremely precise lengths, ±0.12mm, without deflection or distortion in any manner. Haven developed and perfected this technology, which is currently used by thousands of manufacturers around the world. The company says that customers have found that the Dual-Blade shear

Email: info@transfluid.de Website: www.transfluid.de

Fast, precise and versatile cutting technology

specific manufacturing needs. The company offers a full line of shearing products, including supported shear systems, cold saw systems, and laser cutting systems. Haven Manufacturing Corporation – USA Fax: +1 912 264 9001

Website: www.havencut.com Haven’s dual-blade technology

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July 2012