TPT November 2011

B ending & T ube M anipulation

New numerical control system for hydraulic bending machines

Tre C Srl – Italy Fax: +39 0558 877919 Email: info@trecsrl.com Website: www.trecsrl.com Tre C’s CNW333 numerical control system, alongside one of the company’s bending machines

TRE C Srl is a manufacturer of bending machines for metal profiles. Planning and production, completely developed in-house, relates to a range of sixty models of bending machine with various powers and technological solutions, up to CNC models. Rollers and equipment are also an integral part of Tre C’s production. The company believes that the target of improving the performance of machinery and flexibility of application in various fields should not prejudice the simplicity of use. In response to these needs and thanks to customer feedback, Tre C developed the new numerical control CNW333, applicable to all of its hydraulic bending machines. The CNW333, developed on the Windows XP operating system, can operate in single- and multi-run, and is applied to hydraulic machines both with two-speed rotation motor as standard and with speed regulator, which allows operation of four processing axes with automatic speed calculation. In addition to the functions already present in the other versions, it provides a user-friendly programming system, programming of up to 36 radii and automatic

positioning calculation for new bending radii, facilitating processing performance and programming. Files can be managed directly in DXF format in order to obtain the geometry to be performed and to create network connections for interfacing with other PCs for data exchange.

Leaner, meaner and greener ADDISONMCKEE’s innovative new ‘Hydra Green’ technology allows its latest end forming equipment to take advantage of hydraulic power without the constant noise, heat and energy usage associated with traditional hydraulic power units. minimising heat emissions and drastically reducing noise emissions by as much as 50 per cent. The system also achieves a major reduction in the amount of hydraulic maintenance required – while the smaller hydraulic reservoir uses a remarkable 65 per cent less oil.

a significant alternative to the existing world renowned DB 75 machine but with significant cost advantages achieved through removing the ball screw providing the boost and allowing the gearbox and motor instead to provide the force required for boosting, enabling freeform bending for the full length of the bed. Not only that but, given the cost of floorspace at any facility, the new machine’s modular design also has significant benefits if bed length flexibility is important. The standard machine itself is two metres long but offers the capability to increase in length by bolting two sections together to extend the bed when required, converting the machine easily and cheaply to a three/four metre model. AddisonMckee – UK Email: paspinall@addisonmckee.com Website: www.addisonmckee.com

Whereas traditional hydraulic systems for endforming machines use an AC motor continuously driving a hydraulic pump even when the machine is not in use and no oil pressure and/or flow is required, AddisonMckee’s new technology is designed so that the pump is in operation only when there is a demand for increased pressure/flow. In the final analysis, the ‘Hydra Green’ solution, at the heart of the new HG70 range of end formers, will deliver a number of key benefits over a traditional hydraulic circuit in terms of using 50 per cent less electricity due to the significantly reduced duty cycle of the hydraulic pump,

The technology’s functionality will also allow for enhanced machine motion control by using the variable speed of the servo pump to control oil flow rate and machine speed. And, most importantly, with the system naturally sitting in a low energy state when the machine is idle and the pump not generating pressure or flow, operator safety is also significantly enhanced. It’s fair to say that AddisonMckee’s programme of technological innovation has two main drivers: cutting unnecessary emissions by its machines and cutting costs for its customers. The new eb80 ESRB machine, for example, represents

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N ovember 2011

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