The material containers of the GRAVIMAX G76 from WITTMANN are virtually free of interfering edges, so that they do not obstruct the free flow of the material. From these specially designed material containers, each component is metered into a weighing container by pneumatic dosing sliders. Depending on the material, the dosing sliders can either be opened for a set period of time to let the material flow freely, or they are opened in pulsed intervals until the desired quantity of material has been reached, which particularly favors constant dosing results. After weighing, the materials flow into a spherical mixing container, where they are mixed into a homogeneous blend by a spiral-shaped device. Thanks to the GraviLog software developed in close cooperation with WITTMANN customers, various different material quantities and dosing deviations can be documented, and compound formulations can be administered. GRAVIMAX G76 is also capable of bidirectional data exchange via OPC-UA.
Extension of the ATON segmented wheel dryer series
WITTMANN has been successful for more than ten years in the field of material drying with its segmented wheel technology, a technology continuously refined over time in order to adjust it to changing needs and requirements on the market. While the original overriding goal was to achieve a constant dew point behavior even under the most difficult conditions, users very soon started to demand particularly energy-efficient solutions.
ATON H1000 battery dryer.
To cater to the increasing trend towards production equipment integration, an interface solution was created for WITTMANN 4.0, and the WITTMANN dryers were also equipped with larger touch screens. WITTMANN ATON segmented wheel dryers were laid out as compact beside-the-press appliances which could handle a dry air volume ranging from 30 to120 m³/h. The experience gathered over the last ten years has now led to the development of a battery dryer model with a segmented wheel, which will be presented for the first time at this year’s K. The ATON H1000 battery dryer, already frequency-controlled in the standard version, is the first segmented wheel dryer for central plants. It can handle a dry air volume of 1,000 m³/h, which is capable of drying 500 to 600 kg of plastic granulate per hour. The ECO wheel drying wheel, consisting of numerous segments, is loosely filled with a desiccant. Similar to the compact appliances, it is rotated via a low-maintenance chain drive. In this way, a molecular sieve which is always fresh is available for the air to be dried, in order to maintain a constant, low dew point.
The ATON H1000 comes with several different adjustment options, including dew point-controlled drying. The different ambiLED light colors inform operators in the simplest way and at a glance about the current status of the dryer. The appliance is extremely easy to operate via its plain text touch screen user interface, where the temperatures and the dew point are displayed clearly and easy to read.
Front of the ATON H1000, close-up view.
New TEMPRO plus D100 temperature controller
Industry – and especially the injection molding sector – is very strongly influenced in this age of digitization by the fact that most industrial customers require from their suppliers not only absolute high quality but also thorough documentation. Due to continuous further improvement, the high-end temperature controllers of the TEMPRO plus D series from WITTMANN, with an excellent reputation worldwide, have been able to satisfy all of these requirements. Here, the 16,000 TEMPRO plus D temperature controllers shipped to all parts of the world so far speak for themselves. Requirements analyses in a great variety of production sectors have pointed to a demand for pressurized temperature controllers for a maximum temperature of 100 °C. To meet this demand, WITTMANN will introduce the new temperature controller model TEMPRO plus D100 at this year’s K in Düsseldorf. With this appliance, WITTMANN underscores once more the significance of this series and its expertise in product development.
TEMPRO plus D100 temperature controller.
The new TEMPRO plus D100 belongs to the range of temperature controllers recommended for use as components of WITTMANN 4.0 production cells. WITTMANN 4.0 is the name of the solution from the WITTMANN Group, which leads into the world of Industry 4.0. Consequently, TEMPRO plus D100 can be fully integrated in the control system of a WITT- MANN BATTENFELD injection molding machine. The new temperature controller is capable of 9 kW heat output and stands out by its magnet-coupled stainless steel pump, which ensures sufficient flow quantities. The pump capacity is 0.5 kW, with a maximum flow quantity of 40 l/ min and a maximum pressure of 4.5 bars. The TEMPRO plus D100 is equipped with a wear-resistant, maintenance-free flow quantity measurement device as standard. Like all other WITTMANN temperature controllers, TEMPRO plus D100 also offers an extensive choice of additional equipment options in order to configure the absolutely perfect temperature controller tailored to fit every conceivable application.
Extension of the PRIMUS robot series
PRIMUS 16T: In addition to various other novelties in the robot sector, WITTMANN will roll out two new appliances of the PRIMUS series at this year’s K. The smaller of the two appliances from this series is called PRIMUS 16T. The Z and X axes of this appliance are based on the already well-known PRIMUS 16, what makes the difference is the Y axis, which is telescopic. This is why the PRIMUS 16T is specially recommended for use in confined surroundings.
PRIMUS 16T robot.
Thanks to its telescopic system, it is possible in most cases to dispense with external protection of cranes, which saves costs. With its nominal load capacity of 5 kg, the PRIMUS 16T enables safe handling of heavy grippers for six or eight cavities.
PRIMUS 48/48T: In 2018, WITTMANN presented for the first time a PRIMUS robot with a movable X axis. The PRIMUS 26/26T introduced then combined the advantages of two appliances and made it possible to install PRIMUS solutions on injection molding machines with up to 900 t clamping force. Now the series is being extended once more. With the start of the K 2019, the PRIMUS 48/48T will be released for sale. This appliance is laid out for injection molding machines ranging from 20 to 900 t in clamping force. Its horizontal strokes can reach a maximum of 6 m, which means that several pallet bays can be arranged beside the injection molding machine, or a place for parts depositing can be positioned behind the machine’s clamping unit. To further enhance its flexibility, the robot comes with a continuous drilling pattern as standard.
PRIMUS 48T robot.
The demolding axis offers a maximum stroke of 1,200 mm, the vertical range is from 1,600 to 2,000 mm, with the vertical axis made telescopic from a stroke of 1,200 mm upwards to provide a further increase in stability. Customers can choose between the PRIMUS 48 single axis and the PRIMUS 48T telescopic version. Both versions have the same load capacity of 20 kg. The PRIMUS 48/48T comes with a completely re-designed vertical tube, whose rigidity values are comparable to those of the WX appliances. On the vertical tube of PRIMUS 48/48T, only the quick couplers for vacuum, compressed air and gripper feedback are visible, the hosing is concealed inside.