Edmo Group boosts productivity with mitre saw

The Edmo Group – specialists in aluminium extrusion profiles, aluminium fabrication and powder coatings – has recently purchased a Mecal SW453 Reverse double mitre saw from Addison Saws.

Edmo operates out of two locations – Ross-on-Wye and Wednesbury – and it was the need to further increase and improve upon its current mitring process that prompted the purchase of the new double mitre saw.
“The amount of mitring operations we have to apply are extensive,” states managing director David Ashton, “and looking at key ways in which we can improve that process, as well as increase productivity, is key for us as we look to further our impact on a competitive market. We were highly impressed with the capabilities of the Mecal and saw for ourselves how the machine handled complex operations, which in turn led us to make the purchase. In addition, we were very pleased with how smoothly the installation and commissioning of the Mecal proved to be.”
The Mecal is a double mitre saw with pneumatic positioned inward/outward tilting heads that offer a range of -22.5° to +135°, together with mechanical stops for intermediate angles. A large sector plate ensures accurate angle settings, with default positions set at 90° and 45°. The control system with graphical display and its USB data storage is easy to use for either quick random cuts or pre-programmed cuttings.
“Edmo’s strength lies in its ability to project manage complete turnkey supply solutions and, although it’s early days, we are confident that the Mecal will no doubt lead to increased productivity across our aluminium extrusion division,” says Ashton.
For further information www.addisonsaws.co.uk

Automatic straight-cutting bandsaw released

Meba Saw has introduced the MEBAmat 330, an automatic straight-cutting bandsaw with 330 mm capacity. Available in the UK from ADS Precision, its carbide-compatible power package means the saw is designed for cutting solid bar, tubes and profiles, even from hardened, difficult-to-cut materials.

The saw runs continuously for single or multi-shift operations, whether operating two shifts, or unmanned three-shift operations. This fully enclosed saw is compact and practical. It saves space, has a larger machine door with a gas damper to keep it safely open, and allows easier access to faster blade changes and bandsaw maintenance. What’s more, Meba says that it does not sacrifice operator safety. The Plexiglas cut-outs allow safe observation and monitoring of the sawing process, while swarf and chips are prevented from exiting the machine envelope.
According to the company, a key feature of the saw is its ease of use. There is a material database in the controller which produces cutting values. With its search function, the material can be selected (length, width and other dimensions) before a saw blade and optimal cutting values are recommended. The operator can store cutting jobs with the saw’s memory function, while the machine can also import sawing programs from CAD.
The MEBAmat 330 is designed to offer solid, smooth, accurate cutting with its ball leadscrew feeding and latest linear ball guideways. Additional options include laser-monitored height detection and material width collision detection.
For further information www.adsprecision.com

Ecological sawing in the spotlight

Kasto has introduced what it describes as a high-performance, economically priced bandsaw to leverage the benefits of either tungsten-carbide tipped (TCT) or bi-metal blades. At MACH 2018, visitors to Hall 7 Stand 365 will see that the KastoWin Pro AC 5.6 offers short cutting times, long blade life and intuitive operation.

Compared with standard KastoWin machines, the bandsaw can increase production efficiency by between 50 and 100%, more in some instances, depending on the type of blade and material being cut. Having an installed weight of 4.3 tonnes, the saw band is driven by an 11 kW frequency-controlled motor, delivering infinitely adjustable cutting speeds from 12 to 150 m/min. The maximum size of stock that can be cut is 560 mm and the smallest dimension is 25 x 25 mm, while the shortest residual length is 10 mm for individual offcuts and 35 mm in automatic operation.
The saw incorporates ecological design features that lower energy consumption, especially in the hydraulics. Kasto has complemented this technology by developing electro-mechanical down feed of the blade controlled via two ballscrews, each with a servo drive. The hydraulics system is therefore only responsible for workpiece clamping and saw blade tensioning, so is actuated far less than in the past, delivering an energy saving in this area of 93%.
All drives are controlled by intelligent converter technology, while dynamic parts such as the saw frame have been designed to be lighter. Overall, these measures have made it possible to achieve significant improvements in energy efficiency; consumption being on average 28% lower compared with Kasto’s previous bandsaw model of equivalent size.
For further information www.kasto.com

Blade evolution on show at MACH

At the forthcoming MACH exhibition at the Birmingham NEC next month, Vollmer (Hall 20, Stand 160) will be giving an exhibition debut to two machines for the processing of saw blades and cutting tools: the Loroch Evolution K850-M and Vgrind 360.

Incorporating a 19” touch-screen CNC that is comparable to a smartphone configuration, the Loroch Evolution K850-M allows blades to be programmed in minutes. Suitable for processing HSS, solid-carbide and friction saw blades, the machine has a direct-drive grinding wheel configuration which reduces power loss and eliminates undesired vibration that can impact blade quality.
Capable of automatic processing, saw blades can be loaded from 130 to 520 mm diameter in random order, while manual loading will accommodate blades up to 850 mm diameter. To achieve the automated concept with differing bore sizes, bore-reducing rings can be used to create a common bore diameter. With eight CNC axes, just one clamping flange is required for blades from 130 to 850 mm diameter.
For manufacturers of carbide drills and milling cutters, the Vgrind 360 features two vertically arranged spindles and five harmonised CNC axes that achieve interpolation with short travel distances for both the linear axes and swivel ranges. Capable of processing cutting tools up to 200 mm diameter, the machine has a number of automation options for lights-out production that will be demonstrated at the show.
For further information www.vollmer-group.com

Cutting edge: the shark teeth

Sintered tools have a reputation in metal processing for being particularly hard-wearing and for maintaining their sharpness over a long period. However, processing saw blades, drills and milling tools proves to be time consuming as a result of their particular hardness. This is why the saw blade professionals from Alesa in Switzerland started their own development process to design a grinding machine for circular saw blades. The fully automated Denta Combi 160 is designed for multi-shift operations. Here, precision synchronous servomotors featuring a wash-down coating from Kollmorgen are responsible for positioning the high-frequency grinding heads accurately.

Grinding hard materials involves the major challenge of dissipating the generated heat through water or oil as effectively as possible. The saw blades are so sensitive that temperatures at the edges of more than between 180 and 200°C can result in immediate changes in material performance. The structure deteriorates and hardness reduces considerably.
With this in mind, a high-pressure oil jet is deployed by the Denta Combi so that teeth remain as cool as possible during chamfering. However, as water is more effective than oil in absorbing friction heat during grinding, the machine engineer has to increase the oil supply pressure – and integrate a CO2 extinguisher into the system. In order to prevent the positioning drives inside the processing centre from adverse damage through contact with the cooling liquid, the machine builder uses specially coated synchronous servomotors from Kollmorgen – the AKM Washdown range with a coating made from a two-component epoxy resin. This protects the units securely from the impact of corrosive chemicals. The extremely smooth surface also ensures that liquids are able to run off without residue.
For further information www.kollmorgen.com

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