TPT January 2012

B ending

Leaner, greener philosophy AS a designer, manufacturer and supplier of tube bending and end forming technologies, AddisonMckee continues to introduce innovative technology to make its machines leaner, greener and more efficient. 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, minimising heat emissions and 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 65 per cent less oil.

customers. The new eb80 ESRB machine, for example, represents an alternative to the existing DB 75 machine but with 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. Given the cost of floor space at any facility, the new machine’s modular design also has benefits if bed length flexibility is important. The standard machine 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 to a three/four metre model. AddisonMckee – USA

The company’s 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. Whereas traditional hydraulic systems for end-forming 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 pressure/flow. AddisonMckee says that the Hydra Green solution, at the heart of the new HG70 range of end-formers, delivers a number of key CLOMEA, Italy, has expanded its range, with two new models of bending machine – CRM140 and CRM130 – and the new numerical control CNW333. The company has also optimised functions and performance of existing models. The CRM140 and CRM130 are bending machines of high/medium power with three driving shafts, and moving central roller with hydraulic positioning. CRM130 has fixed lower shafts, while CRM140 features variable positions. The machines are available in eight models, from the basic version fitted with CMP101P console, with programmable positioner of the central roller, up to the most innovative control unit model CNW333. The programming and interface with the user is very simple and intuitive. It can work in one step, and is able to control up to six axes and to program curves up to 36 radii on the same bar. CNW333 has an automatic control of more than 650 positioning speeds, and can be coupled to hydraulic bending machines with standard engine. The versions fitted with a speed variator enable an automatic cal- culation of 100 rotation speeds of the rollers.

The technology also allows for enhanced machine motion control by using the variable speed of the servo pump to control oil flow rate and machine speed. With the system sitting in a low energy state when the machine is idle and the pump not generating pressure or flow, operator safety is also enhanced. AddisonMckee’s programme of technological innovation has two main drivers: cutting unnecessary emissions by its machines and cutting costs for its The automatic calculation of the positioning speed simplifies the execution of the connection between one radius and another, keeping the geometry for the coupling between different curves. The machine is programmable with just two values of the curve to be realised, while the programming of curves with more radii is simplified by pre-setting functions that help the operator to find values for the geometry required. The machine can work in multi-

Email: jrankin@addisonmckee.com Website: www.addisonmckee.com Expanded range of bending machines

more complex curves, such as bending in 3D (on different planes), spirals, coils for cooling systems and heat exchangers. Clomea Soc Coop – Italy

Fax: +39 0557 310093 Email: info@clomea.com Website: www.clomea.com

passage automatically on a single radius, and can import AutoCAD files in DXF format. Network connection to PC allows data exchange and file storage, as well as remote assistance directly with Clomea’s technical department. The company says that particular attention has been paid to the development and testing of the bending rolls and additional devices and equipment, in order to satisfy special projects with

Clomea’s CMR140 bending machine

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