Battenfeld HM now in four clamping force sizes

Continuous extension of the high-performance HM series

(PresseBox) ( Kottingbrunn, )
The success story of the precise, compact and powerful HM series from the Austrian machine manufacturer BATTENFELD Kunststoffmaschinen Ges.m.b.H. continues: six months after the introduction of the 500-ton model, BATTENFELD has now launched the next stage by adding a 650-ton machine. This size, of course, also features latest high-precision hydraulics, an enormously generous mold space plus the user-friendly UNILOG B6 control system.

The new clamping force comes as a compact, precise and powerful machine model, just like the rest of the HM series: Battenfeld now also offers an HM with 650 tons clamping force. Naturally, this new model also ranks among the most compact machines in its performance class, thanks to its small footprint. The diagonal distance between tie bars is extremely generously dimensioned, thus offering an enormously large mold space.

A typical Battenfeld feature is the excellent high-precision hydraulic system, combined with a powerful injection unit, by which the machine comes prepared for a wide range of injection molding tasks. It can be adapted to specific manufacturing requirements with many optional extras and extension packages. The new clamping force size also reaches a high degree of cost-efficiency in production thanks to its low energy consumption. Other characteristics are low-noise operation and low-maintenance, service-friendly design. With this new model, Battenfeld has once again successfully retained proven components and high-performance features in combination with future-oriented innovations.

High-precision clamping unit

Four symmetrically positioned clamping cylinders combined with external fast-stroke cylinders and a centrally located ejector ensure symmetrical force transmission and fast, even clamping force build-up in the clamping units of the HM series. The fast-stroke cylinders with differential gears also promote high clamping speeds and consequently short dry cycle times. Generously dimensioned linear guides in the moving platen ensure precise platen parallelism, cutting the EUROMAP tolerance margins by half.

The mold space, equipped with rectangular plates, is so roomy that even the insertion of large molds presents no difficulty, and no adjustments are necessary. The low-maintenance linear guides require only a minimum of lubrication and are therefore well suited for clean-room applications.

Powerful injection unit

The compact design of the HM machines is enhanced by the installation of two pulling injection cylinders. All screws available come with a uniform L/D ratio of 22. The powerful injection unit is extremely rigid and offers enormous scope for various processing tasks. Injection pressure can be built up to a maximum of 3000 bar, an injection stroke of up to 5 D is possible, and the injection speed reaches 300 mm/s. This optimized layout is designed for high plasticizing performance with excellent melt homogeneity. Screw concepts with special geometries, such as the Rapidmelt screw, are available to meet special requirements.

Processors can choose from 3-4 screw diameters for each injection unit; all barrels are compatible with several different injection units. This universal compatibility of screws and barrels with various injection units ensures maximum flexibility for processors and reduces investment costs as well. Of course the plasticizing units from Battenfeld are also designed for easy maintenance as required. The machines are equipped with a separate service stroke to be activated via the control system, to facilitate dismantling of screws and barrels. The ceramic heater bands and sensors can be plugged in individually for each heating zone.

Energy-efficient hydraulic system

One characteristic of hydraulic systems from Battenfeld is the combination of latest technology with a high degree of user-friendliness and easy maintenance. The machine also achieves a high performance and force build-up with an extremely low consumption of energy: Electrical delivery pumps (DFEE) provide exactly the right pressure/quantity rate required for each process.

A bypass filter aggregate with finned tube cooling and filter cartridge ensures a high degree of operating safety. As an option, the HM series can be equipped with a multiple pump system, which allows parallel movements and a further increase in injection performance.

Access to all components such as filters, cooling aggregates or connectors is extremely easy, which ensures optimal user-friendliness and simple maintenance. The hydraulic blocks are installed at the rear of the machine, close to where the force is applied, so that they require only a minimum of tubing. The motor and pump compartments come with sound-absorbing encasement, which ensures low-noise operation.

User-friendly UNILOG B6 control system

Naturally the HM 650 is also equipped with the latest-generation UNILOG B6 control system. Well-known symbols and familiar functions of the previous control system have been retained - in line with the company’s established operation philosophy - with a number of new functions added. Operation of the system via a 15” touch screen monitor with a central input and display box for process control is extremely comfortable. Many details such as language and unit selection or an online help system are built in to ensure easy handling of this control system.

The use of Windows XP as the operating system offers genuine plug & play features. A range of peripheral equipment can thus be easily integrated, and several communication interfaces are available. In addition to network compatibility, the system provides a facility for remote diagnostics, and messages can be transmitted via SMS. Access control to ensure a safe production process is installed via a USB connection. An extended login function and extensive documentation and monitoring facilities to meet the stringent requirements of process documentation are also available.

In addition to user-friendliness, Battenfeld has provided the new system with more speed and precision. Moreover, the UNILOG B6 operates even more reliably, which pays dividends especially in more complex processes, such as specialized forms of injection molding.
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