With the launch of its newly-developed automatic saw SBZ 630, elumatec, a world market leader for profile processing machines, has proven that mass and class is no contradiction.

“The SBZ 630 offers a combination of maximum performance and precision,” says Andreas Hettler, a design engineer, who has taken part in the development of this automatic saw.
The new automatic saw for aluminium profiles boasts of extreme strength, precision and efficiency. The machine comes into its own whenever a maximum sawing precision at high speed is needed, he says.
One of the challenges faced by the engineers designing the saw was to ensure precision in cutting even through thick-walled aluminium profiles at high speeds, says Hettler. “This meant that they had to overcome the problem of increased cutting power associated with increased feeding speed during a sawing operation. One of the major worries was the rising vibrations that could affect the accuracy of the cuts.”
To overcome this problem, the team came up with a design that would drastically reduce machine bed and base vibration thereby ensuring quality cuts even at high feeding speeds.
“The movable parts of the machine have also been designed in a way to maximise precise cutting even at high speeds. The drive is a robust and strong 7.5 kW motor which has been proven even under the toughest conditions. The pivoting and tilting axes are equipped with cross roller bearings, which are both useful and precise,” says Hettler.
The sawing unit, which is patent pending, allows the tilting of saws from 45 degrees to 135 degrees offering increased flexibility for cutting.
“Mitre cuts can be made on profiles with unusual or large cross-sections, which could not be cut on machines without this option,” explains Hettler.
Depending on the tilting or pivoting angle, the saw is positioned as close as possible to the clamp by means of the movable support table. This minimises vibrations on the profiles.
After each cutting procedure, the profile sections are separated on two sides while the saw blade returns to its original position. This offers a great advantage to users since the work piece is not touched by the saw blade when it travels back, thereby ensuring that the quality of the clean cutting surface is not influenced by an accidental after-cut.
Changes have also been made to the movable machine bed, which does away with the need to reclamp profiles, especially if the sawing operation consists of a combination of several single cuts.
The control uses a standard interface, the software for which has been optimised to meet the special requirements of industrial aluminium cuts.
The machine can be used for the production of windows and curtain-walls, as well as other aluminium profiles.