Smart Molding International 1-2026

41 machinery A robot handles the precise placement of the components on the workpiece- specific holding fixtures, which were designed and built by Rösler in close cooperation with the customer. In the blast chamber two (2) pairs of injection blast nozzles, positioned at the upper and lower end of a vertical linear shuttle unit, are accelerating and precisely throwing the specially developed, non-abrasive blast media onto the rotating work pieces. Since the rotational positioning of the satellite stations is extremely precise, robotic handling of non-round, random- shaped components at the load station poses no problem whatsoever. In addition, the precise rotational positioning, in combination with the vertical linear unit and the multi-step process control, allows a temporary stop of the work piece rotation. This ensures that difficult-to-reach surface areas like drilled holes can be reliably de-flashed. Depending on the work piece shape, each individual nozzle can be turned on or off during the various process steps, which guarantees a highly efficient shot blasting operation. Upon completion of the de-flashing process residual blast media and dust are removed with a compressed air blow-off system. All process steps, such as picking up the work pieces for their precise placement on the holding fixtures, the settings of the linear shuttle unit, the defined rotation stops, the turning on/ off of individual nozzles and the blow-off cycles, are stored in workpiece-specific programs and visually displayed on the operating screen of the PLC. This fulfilled another customer requirement. Shorter processing me yields substan al cost savings The new RWS 1200-I4-SAT2 de-flashing systemworks so effectively that the cycle time for de-flashing 2 work pieces is about 15 seconds below the 60 seconds specified by the customer. During this “saved” time the media and compressed air consumption is practically zero. This represents significant savings in resource and energy usage and reduces the overall operational costs. Excellent media quality and ATEX compliant dust collec on The highly effective blast media recycling and cleaning system with air extraction from the blast chamber and screening unit, combined with automatic media replenishment, guarantees consistently high media quality for the de-flashing operation. The special Rösler antistatic additive, injected into the blast chamber and automatically replenished, significantly reduces electrostatic charges and, thus, minimizes adhesion of dust and media on the finished work pieces. Finally, the shot blast machine is equipped with an ATEX compliant dust collection system. Rösler www.rosler.com www.smart-molding.com The clever design of the RWS 1200-I4-SAT2 de-flashing system with 2 x 2 satellite stations allows de-flashing work pieces in one chamber, while finished/raw work pieces are unloaded/loaded in another chamber. This greatly minimizes unproductive, idle production times The blast nozzles, placed at the top and bottom of a vertical linear shuttle unit, can be moved up/down and individually turned on or off. The digital pressure control of each individual nozzle ensures high process safety and stability (all images: Rösler)