Exhibitor News

With its HBM440A, Behringer GmbH is presenting a totally newly designed automatic bandsaw developed to address the most stringent requirements - both in terms of its appealing modern design and also its superbly engineered functional characteristics. This high-performance bandsaw is ideally suited for the economical and precision cutting of a wide ranging variety of solid materials, pipes or profiles made of metal. In a cutting range of 430 mm in round material, 430 x 430 mm for squares and a number of different diameters and wall thicknesses when working with pipes, the HBM440A saws effortlessly and at high speed and can be used with either bimetal or carbide saw blades. While it may appear similar at first glance to the HBM, the also enclosed predecessor model launched a few years ago, many underlying technical details under the enclosure have been fundamentally re-engineered.

The HBM440A shows itself to be a true specialist when it comes to the sawing of aluminium. This is a material which calls for a particularly high sawing output and also gives rise to a considerable volume of chips, which have to be disposed of as quickly and thoroughly from the cutting point as possible. Two self-adjusting chip brushes on either side of the saw blade brush away adhering chips during the sawing process. In addition, special roller guides are integrated right from the design stage for aluminium sawing instead of carbide guides. A number of supplementary functions in the machine's electrical control system, for example the reduced cutting time at the start of machining on first penetration into the material, ensure perfect cutting results with aluminium every time.

The consistently modular structure of the new HBM440A guarantees a permanently high standard of quality in all the components, as the sawing unit, material clamping unit and feed unit are pre-assembled separately as part of a flow assembly sequence.

Interesting features of this machine include, for example, the facility to tilt the saw frame towards the operator, which considerably simplifies saw blade changeover. Another benefit for users needing to saw an increasing amount of square or sectional material is the far simpler implementation of a saw blade incline of up to 4°. The saw frame feed has also been adjusted. The machine designers attached particular importance to reducing not only cutting times but also cycle times. The result of these and other improvements are higher quality cutting results in a substantially shorter time.

The feed gripper ensures trouble-free transportation of the material to be cut, even when working with uneven stock, bundled material or heavy forgings, as the fixed gripper jaw is also moved by the material on the return stroke of the feed carriage. The material is always ideally clamped, as the clamping jaws are able to move in accordance with the material width.

The feed gripper can be moved close up to the saw blade, allowing cut off lengths to be reduced by around 50 per cent. The gripper is mounted on linear guides and positioned by means of a frequency-controlled drive system. A vertical clamping unit can be optionally mounted. This is mounted in front of the gripper jaws and covers the entire cutting area. The cut-off length is increased only minimally when the vertical clamping unit is mounted. It offers a particular benefit when sawing layers or bundles. A feed length of 800 mm is provided as standard, although this can be extended if required to 1500 – 3000mm.

The machine is equipped with generously dimensioned hinged doors which afford simple access for cleaning or maintenance work. This represents a particular benefit when changing the saw blade. The sawing unit of the new HBM440A is also manufactured from a single casting, meaning that the machine is extremely torsion resistant even under the most extreme blade tensioning forces.

The overall machine concept of the new HBM440A was designed for trouble-free carbide capability, meaning that not only the drive system but all the relevant components have been adjusted for the use of carbide blades. Carbide saw blades offer an interesting alternative to bimetal, in particular when considering the time factor as part of the sawing process. The cutting output is many times higher, which makes a major difference to the machining times. The higher chip volume produced when working with carbide saw blades is directed into a generously dimensioned chip conveyor.

A self-explanatory, graphic-supported control system paves the way for convenient and at the same time easily understandable sawing machine operation.

Behringer GmbH
Standnummer: 7B14