At Plastpol 2022 we will put the spotlight on our high-performing hot runner systems for small precision parts. Moreover, available at the booth (Stand 26, Hall D) some of the most promising trends of FLEXflow technology - including family molds and back-injection of films – and other innovative solutions for pin control.
Designed for low shot weights, ranging from 0,2 to 30 gr, our multi-cavity series is developped to enable maximum design flexibility and ensure tight production tolerances at the same time.
Suitable for high production volumes, it is the ideal solution when an outstanding surface quality and short cycle times are required as for example in:
The minimum gate to gate pitch is 22 mm for open gate and 46 mm for valve gate (further reduction to 25 mm is possible with MultiValve Plate) with the smallest nozzle pocket of Ø 16 mm.
Oerlikon HRSflow hot half is a fast plug and play solution for the injection molding machine. The internal geometry is suitably profiled to guarantee excellent resistance to bending and torsion, even with high cavitation numbers. The dedicated channel design and the specific coating significantly increase the wear and tear of components, performing also optimized corrosion resistance.
The Company can offer conformal cooling circuits, conceived and built by in-house SLM Technology in case of challenging applications whatever the market segment destination.
Come and see at our booth the PMMA lightguide produced with a 5 point-gating FLEXflow hot runner technology in a complex family tool. The result is an ultra-clean optical grade part for longer and more complex LED structures. This chellenging part will show how FLEXflow can perfectly balance the filling process and how it can control warpage despite the different weight and dimension of the molded components. At the same time, it demonstrates that the flow rate, which can be set independently and precisely for each cavity, reliably prevents overfeeding and flash formation.
Film back-injection with capacitive films is another forward-looking technology. It enables, for example, the integration of functional elements with a low thickness, such as lights, sensors or touch switches, and thus provides a previously unknown level of design flexibility, especially for automotive interior and exterior applications with grained or high-gloss Class A surfaces. A real example available at our booth is the futuristic surface produced in cooperation with LEONHARD KURZ. The world's leading company in thin-film technology developed an HMI (Human Machine Interface) concept panel with a forward-looking design that fully exploits the technical possibilities. FLEXflow allows a gentle, low-stress injection and enables the perfect appearance of the IMD design. A further challenge arose due to the requirement for a low internal mold pressure for the concurrent back injection of the IML sensor and IMD coating. The FLEXflow enabled this internal pressure to be precisely controlled.
Discover our solutions to control hydraulically actuated cylinders: MSR and HyFlow.
The patent-pending Mechanical Stroke Regulator (MSR) makes it easy to individually preset the opening positions of the pins in hot runner systems. By adjusting a simple screw, the user can specify the individual oil volume to define the precise position where each needle must stop. In this way, the pressure drop for each nozzle can be set independently, and the pressure distribution during the packaging phase can be controlled. MSR is suitable for balancing the melt flow in cascade molding and numerous trials have also demonstrated its successful use in family molds.
We suppliy its new MSR ready-to-install on all of the company's existing hydraulic cylinder series equipped with electrovalves. Installation can be limited to individual nozzles of a system to save costs. It only takes around 10 minutes and can be done without dismantling the mold. Modifications to the existing hot runner cut-out are not required. Combined with our FLEXspeed system, the speed of the pin can also be adjusted.
To allow an even more accurate control of the pin in hydraulic activated valve gate systems , we have developed HyFlow. HyFlow systems are managed through an user-friendly controller to set the lock position of each individual pin for an optimal balancing of the pressure distribution in the cavity. The opening and closing speed for each nozzle can be adjusted by a manual mechanism to regulate the oil flow rate for actuator activation. This allows for a uniform mold filling process without sudden pressure drops and the associated surface defects.
