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Akro-Plastic launching new HFFR compounds and PRECITE PBT series

Booth: B2-2209

Akro-Plastic is launching new compounds with halogen-free flame protection and PRECITE, the first PBT compound to be added to the portfolio.

AKROLOY PARA ICF 40 is an aromatic PA MXD 6 polyamide with high flowability, achieving high quality finish even with carbon fiber contents of up to 40%. With rigidity close to 40GPa and 400MPa flexural strength, these compound types are ideal for achieving metal-like strengths.

The AKROMID Lite type series (PA-based with chemically coupled PP) has grown to include new products that not only reduce weight but also deliver a range of technical enhancements to specific properties, such as low density, outstanding chemical resistance, and good adhesion to olefin-based TPE types:

- AKROMID B28 LGF 40 1 L: one of the first polyamide blends with long glass fiber technology based on the advanced pultrusion technology. The high performance glass fibers give the product superior strength values at higher temperatures, with strengths exceeding those of a 50% short glass fiber-reinforced polyamide at 120°C.

- AKROMID B3 ICF 20 1 L: This type permits substantial weight reduction (comparable with non-reinforced PA) whilst delivering superb mechanical properties. Further weight reductions can be achieved using chemical blowing agents.

Akro-Plastic offers new flame-retardant compounds based on halogen free flame retardant (HFFR) additives for the public transport sector.

An AKROMID B3 GF 25 9 (6360) was developed specifically for a bus seat in collaboration with the seat manufacturer Franz Kiel GmbH from Nördlingen, South Germany. Designed especially for the back cover and other applications, the compound exhibits low flammability, efficient flowability and high quality surface appearance. The material complies with the requirements of UN/ECE R118 Appendix 8.

Another highlight of Akro-Plastic will be a new product series based on thermoplastic polyesters. PBT and PET compounds and various polyester blends are marketed under the PRECITE trade name. It focuses on the reinforced types with up to 50% glass fibers.

PBT/ASA and PBT/SAN blends are also provided – these compounds have a lower warping behavior and are therefore suitable for larger components. For applications which require high-quality surface finishes, PBT/PC and PBT/PET-based compounds round off the product portfolio.

This product line also offers ICF types with affordable carbon fiber reinforcement. Aside high rigidity and elongation at break, the density and component weight is reduced by 10% to 20% depending on the type. This characteristics profile makes PRECITE ICF ideal for use in precision parts in the lightweight construction and electric mobility industries.

Drum identification with barcode developed by Elmet and Wacker ensures operating safety

Booth: A5-5306

Elmet, an operating system supplier for the injection molding of two-component liquid silicone rubbers (LSR), has introduced a standardized barcode system for drum labeling and recognition as an integral part of its TOP 5000 P dosing systems.

This new identification system, which has been developed jointly with Wacker, virtually eliminates the possibility of components A and B becoming mixed up when replacing the drums.

Said to be unique solution in the industry, Wacker provides its drums with banderoles, which, in addition to the conventional A or B label, also have a barcode running around them.

Optionally, Elmet provides its high performance dosing system with a reading device coordinated to this barcode. The control unit of the TOP 5000 P only allows the pump to be immersed into the new drum if it recognizes the right code.

Initially designed as a hand scanner, Elmet said it will develop a height-adjustable, firmly installed reading device as soon as this safety system has become established in the market. Until then, the company offers a corresponding adhesive tape that is applied in the incoming goods department.

Helmut Gaderer, Sales Manager at Elmet, said, “Unfavorable conditions lead in practice surprisingly often to workers mixing up the drums containing components A and B, despite the existing labels. If the machine is then started up, it inevitably causes a system downtime and extremely time-consuming cleaning work with a production outage that can take up to 24 hours. The resultant losses for the processor are always immensely high.”

Our idea, which has now been put into practice in conjunction with Wacker, more or less rules this out. We have intentionally not had this technical solution patented and therefore hope that our idea will be implemented quickly and comprehensively to the benefit of all LSR processors.”

He said two other large manufacturers of raw materials for silicone injection molding are currently looking at the possibility of introducing the system.

The TOP 5000 P multi-component dosing system from Elmet equipped with the new scanner is designed for the large-series production of LSR parts. It is suitable for shot weights of less than 0.1g to several kg, for 200L and 20L containers and material viscosities of 9,000mPas to 3,000,000mPas, even when there are significant viscosity differences between the A and B components.

EREMA premieres new POWERFIL melt filter business unit

Booth: A6-6314

With the founding of the POWERFIL business unit, EREMA now offers melt filter as individual components for existing extrusion plants. Technical modifications were made to the filter systems prior to the foundation of the business unit that will be presented at Fakuma 2017.

The new business unit offers both the SW RTF partial surface backflush filter system and the Laserfilter as individual components.

With the new POWERFIL portfolio we aim to show even more clearly that our filter systems represent a high performance solution also for third-party extrusion systems – although the technology used is not new, but has already been tried and tested thousands of times,” said Manfred Hackl, CEO EREMA Group.

With the EREMA Laserfilter, a continuous filter system with screen fineness of 70µm is now in operation for the first time. An even gentler filtration process has been made possible by rheological optimization of the support breaker plate, enabling a reduction of flow resistance.

Inquiries for the Laserfilter, which is already established in the post-consumer field, are also increasing from customers in the PET sector, said EREMA. The reason for this is he increased use of rPET in end products requires high process stability despite higher degrees of contamination at times.

The Laserfilter processes input material with a degree of contamination of over 1%. The functional principle avoids dead spaces and makes for short dwell times which in turn prevents “black spots” with PET. Thanks to the newly developed discharge unit, melt losses are reduced from the normal 1-2% with piston filters down to a tenth.

Besides fast availability, customers will above all appreciate the filtering quality and the quick amortization which comes with it,” stated Robert Obermayr, Head of the new business unit POWERFIL. “In recent years the growing recycling market and the noticeable parallel increase in more heavily contaminated input materials have led to a growth in the demand for efficient filtration systems – also in the case of existing extruders.”

FarragTech to present new CARD R drying system that saves energy by 70% on average

Booth: A3-3205

In resin drying, this potential often remains unused, because high energy investment is necessary during plastic processing. At Fakuma 2017, FarragTech GmbH will present the new CARD R system that combines compressed air dryer, compressor and heat exchanger.

With desiccant dryers, for example, drying air is generated by a desiccant which must subsequently be dehumidified again by means of heat. This heat is partly released to the environment, while the remaining part is used to heat up the drying air.

That is why compressed air dryers working according to the dual-circuit principle are offering a large number of advantages: compared to a simple dehumidification unit, using this new system from FarragTech, with a capacity of the drying hopper of just 40L, 1kW energy can already be saved due to the lower compressed air consumption.

The average saving potential is almost 70%, because the resin to be dried is preheated in the upper part of the hopper due to heated ambient air, according to the company.

The actual drying process takes place in parallel to the lower part so that only about 30% of the otherwise required compressed air is required in contrast to pure compressed air dryers at the same material throughput.

The CARD R system from FarragTech is a further development of its CARD M/L series and is supplied with a stand-alone compressor, the heat of which can be recovered.

During the process, waste heat is recovered via oil or air heat exchangers with approximately 80-90°C. The heat exchangers themselves are directly integrated into the housing of the air compressor.

By means of this energy, the air is preheated in the secondary circuit with the CARD M and L. That is why clearly less additional heat output is needed in order to heat the air to the required drying temperature.

If drying takes place at 80°C, for example, which is the case with materials such as polyamide (PA) or acrylonitrile butadiene styrene (ABS), then no additional heat output is required. Thereby, the following applies: the better the air compressor is utilized, the lower are the costs per Nm³/h of air.

With low take off, more energy is thus required to generate compressed air than with higher utilization, explained FarragTech.

Hasco brings wide array of innovations for tool and mold making

Booth: A2-2202

Hasco will present a large number of innovations for tool and mold making at Fakuma 2017.

In the field of Mold Base Technology, the new products being presented include optimized locating guide bushes with a circlip groove and new, individually configurable nameplates for the identification of molds. Innovative fastening devices like the load ring and rotatable eye screw ensure high standards for lifting and moving molds.

Additions to the range in the area of temperature control permit customized, practically oriented solutions for tool and mold making. Non-rotating ejector pins, flat ejector pins with two and four corner radii, adjuster plates for optimum pressure distribution and round, mechanical cycle counters constitute a well-rounded range of new components, with constant further additions enabling flexible applications.

Hot Runner Technology is presenting a new, user-friendly electronic control unit for the industry.

The Vario Shot nozzle series is being completed for the trade fair, and the last nozzle size, Type 50, will be on show. One particular highlight is the presentation of the new screw-in Vario Shot. This permits ready-to-mount systems designed and manufactured individually to customer specifications. Simple mounting and removal from the mold are guaranteed, as is freedom from leaks. Quick & Easy is the motto for the fully mounted and electrically wired hot runner system.

An innovative further development of the Hasco app is the new cartridge heater calculator for the simple calculation of the individually required heating output.

Lindner-Recyclingtech rolls out high performance Micromat HP shredder series

Booth: A6-6108

At Fakuma 2017, Lindner-Recyclingtech will be introducing a high performance shredder series, Micromat HP for processing of plastics and other waste.

While the machine sizes and technology are the same as its Micromat 2000 and 2500 systems, output can be increased by up to 30%.

To achieve this progress, Lindner re-designed the rotor geometry to allow the knives to be used more efficiently per rotation. The optimized Siemens control unit also contributes towards this goal.

Just like the present single-shaft shredders of the same type, the knives can be replaced easily – which keeps maintenance downtimes short. Furthermore, the rotor cooling contributes to optimized material processing, making the operation very cost-effective.

Depending on the size and customer requirements, the robust and versatile Micromat single-shaft shredders from Lindner can come with a 132kW or 160kW motor driving the rotor with a speed of 105RPM.

The gearbox and the connected safety clutch avoid damage to the machine caused by foreign objects and obstructions. The hydraulically operated maintenance door makes it possible to quickly remove foreign objects and comfortably access the rotor. Additionally, the internal pusher system ensures efficient material feeding.

Ambitious European targets for sustainability, climate and environmental protection will require recycling companies to increase their production capacities among other things. The recycling rate for plastic packaging, for example, is scheduled to reach at least 80% and the waste produced by the lightweight plastic-processing industry will increase significantly.

ProTec presents Industry 4.0 ready batch dosing units and resin dryers

Booth: B3-3119

All SOMOS dryers and dosing units are fitted with network-compatible PLC controllers. Their 6” color touchscreen with graphical user interface ensures intuitive operation.

Once interlinked with injection molding machines, extruders, as well as peripheral components and conveyors using a wide variety of available interfaces, the components can communicate with one another in real time.

For instance, a SOMOS dosing unit’s PLC controller can control an extruder’s throughput. SOMOS dryers can also stop an injection molding machine from withdrawing material prematurely and so ensure that optimally dried material is supplied at exactly the right time for processing.

If the PLC controllers receive error messages from other system components, they adapt their operations accordingly. In the reverse direction, the controllers transmit authorizations or report any faults. Numerous formulations can also be stored in and retrieved from the internal storage devices of the dosing units and dryers.

Moreover, the controller can document all manufacturing parameters, so ensuring end-to-end quality control and utter process reliability.

SOMOS Batchmix gravimetric dosing and mixing systems can handle throughputs of up to 1,920kg/h. They can supply injection molding machines and extruders with homogeneous mixtures of up to six flowable components.

Weighing and mixing bins each fitted with two load cells ensure accurate, reproducible dosing. In addition to the Batchmix M and Batchmix L models, which will be shown at Fakuma, the range is rounded out with a third XL model for large throughputs.

The new design resin dryers which ProTec is presenting at its booth are also fitted with a PLC controller. Of the SOMOS stationary dry air dryers, it is the RDT-250 for moderate pellet throughputs of up to 200kg/h which is being shown. Up to a maximum of six multichamber drying modules with capacities of between 50L and 300L can be combined to form a drying system.

The mobile auxiliary dryer range is represented at Fakuma by the RDM-20/50, RDM-40/100 and RDM-70/200 models A sixth model has just recently been added to the top of the range, meaning throughputs of between 5-150kg/h can now be handled. The mobile units which comprise a dry air generator and single chamber drying bin are particularly suitable for the versatile pre-processing of frequently changing pellet types.

All stationary and mobile RDT and RDM models offer drying temperatures of 60°C to 140°C as standard, with high temperature variants for up to 180°C being available as an option, which can also be retrofitted.

Smart energy-saving systems make the dryers particularly resource-efficient: drying air volume is matched to throughput and regeneration cycles are controlled on the basis of the actual water content of the pellets. Integrated dry air conveying for automatically charging processing machines is available as an option.

New JV Römheld Rivi promotes magnetic clamping technology

Booth: A1-1223

The newly established Römheld joint venture (JV) Römheld Rivi GmbH presents itself to the public for the first time at Fakuma 2017.

To develop the magnetic clamping technology – among others for Industry 4.0 applications – Hilma-Römheld and Italian manufacturer of clamping means Rivi Magnetics have formed the JV Römheld Rivi.

Besides the introduction of the company, the focus at the fair presentation will be on magnetic quick-clamping systems for plastics and rubber processing that is also suitable for high temperature processes.

One of the highlights is diversity of M-TECS magnetic clamping plates which can be used for working temperatures of up to 240°C. Thus, besides the application for injection molding, processing of rubber and high-tech thermoplastics as polyetheretherketone (PEEK) or polyphenylene sulphone (PPSU) is also possible, where conventional magnetic clamping systems fail in the long run.

Römheld Rivi stated that it is the only company worldwide that offers magnetic clamping plates for such temperatures.

For clamping and releasing, the magnetic clamping systems require only a short current pulse, in operation, they work without any power supply. Permanent magnets generate a magnetic field that penetrates a few mm deep into the mold and hold even heavy mold halves weighing several tons in the correct position and bring them together absolutely parallel.

Thus, also elements with complex geometries can be exactly clamped without deformation within seconds.

A further advantage of magnetic clamping systems is their flexibility: molds of different sizes, weight and geometries can be clamped, a standardization of the molds is not required. All magnetic materials are clamped on the full surface and with a high bending stiffness. The uniform distribution of the clamping force ensures a low mold wear.

From the magnetic clamping technology benefit amongst others processors of thermoplastics such as PEEK that is used for example as sterilizable and biocompatible material in the medical technology, as flexible circuit carrier for electronic components or as heat-resistant material in the aerospace industry.

In continuous use, the high performance plastic can be used at temperatures up to 260°C; the smelting process only starts at approximately 335°C. This results in high mold temperatures during processing that create the need for appropriate clamping means.

Magnetic clamping plates of the M-TECS series which are already used for more than a decade in the rubber industry at working temperatures up to 240°C are applied as quick-clamping systems.

The size and shape of the magnetic clamping plates can be customized to individual requirements. Heating for high temperature processes can be integrated. Since a clamping system consists only of a few components and has no moving parts, it can be retrofitted within a few hours on existing machines and then the system is in principle maintenance-free.

The M-TECS series fulfills the standards EN 201 and EN 289 for injection molding machines and rubber presses. All requirements with regard to relevant signals such as magnetization, power supply, mold monitoring and emergency stop are met at the performance levels “d” and “e”. Safety signals and error messages are indicated on the operating panel.

Wacker’s high heat resistant solid silicone rubber to make premiere

Booth: A6-6310

At Fakuma 2017, Wacker will premiere its new ELASTOSIL R plus 1350/55 solid silicone rubber for household products and automotive industry.

ELASTOSIL R plus 4350/55 is a silicone rubber for formulating heat-resistant, addition-curing silicone elastomers. It benefited from the heat stabilizers of the ELASTOSIL AUX STABILIZER H series which are added to the base rubber.

Easy to process in extruders, the material can be used to make heat resistant tubing and sealing profiles that withstand temperatures of up to 300°C for several days – and even temperatures of up to 400°C for short periods.

Heat tests at 200°C and 300°C, respectively, show that key mechanical properties such as Shore hardness and elongation at break change very little even after 2,000 hours, i.e. 80 days, according to Wacker.

After it has cured, ELASTOSIL R plus 4350/55 achieves a Shore A hardness value of 55 which is ideal for manufacturing heat-resistant profile gaskets, such as for oven and stove doors or for engine-compartment parts.

It also features good resistance to superheated steam. Consequently, seals made of ELASTOSIL R plus 4350/55 can also be used in applications that require resistance to both heat and superheated steam.

Carefully post-cured grades comply with the requirements of the German Federal Institute for Risk Assessment (BfR) and the US Food & Drug Administration (FDA) for food contact.

WACKER supplies ELASTOSIL R plus 4350/55 as a base rubber blend without additives such as colorants or heat stabilizers. As a result, processors can customize the rubber blend exactly to the specific application.

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