Deflashing - 22 Pages

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Deflashing

Catalog excerpts

De-flashing of thermoset materials Blast media The path to the de-flashing of thermoset and highly filled thermoplastic workpieces leads through the sophisticated complete solutions offered by Rösler. By performing highly informative field tests, we always find the ideal solution for the wide-ranging requirements of our customers. Along with the decision for a specific machining process, this also includes the selection of the proper auxiliary equipment and consumables. The various de-flashing applications require a wide range of different media. Low media consumption combined with the shortest possible cycle times are the most important selection criteria. The constant search for suitable media, regular shot blasting trials with customer work pieces and on site inspections of customer de-flashing systems ensure that these formerly underestimated ‘auxiliary consumables’ have become essential tools for not only achieving the best possible de-flashing results but also for achieving considerable cost efficiencies. Rösler stocks an extensive range of different media types in different grain sizes for testing purposes in our test lab. Generally, de-flashing machines can be operated with the following media: }} Polyamide (PA), in cubical or cylindrical shape }} Polycarbonate (PC), cylindrical }} Filled polyamide media for special de-flashing applications }} Organic media like crushed nut shells or fruit pits (peach,apricot, etc.) }} Thermoset Antistatic compound RÖSLER Schweiz AG Staffelbachstrasse 189 · Postfach 81 · CH-5054 Kirchleerau · Tel.: +41/62/7385500 · Fax: +41/62/7385580 · rosler-ch@rosler.com · www.rosler.com GB.186.06_Technologie – Technical changes reserved Maintaining a consistent quality of the antistatic compound is essential for the effectiveness, quality, required processing time and environmental compatibility of the de-flashing process. We use only eco-friendly raw materials and place high ecological standards on the production of our antistatic compounds.

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Process technology Blast turbines Part cleaning and quality To be effective the blast media must be accelerated to very high speeds. Roesler achieves this by constantly improving the turbine technology, especially the throwing blades, which are key to achieving the required media throwing speeds. The cleaning and blown off after processing are specially designed for their particular range of parts. The centrifugal force of the turbine accelerates the blast media to the required throwing speed. Compared to air blast systems turbines require a relatively low energy input and provide a very...

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Process technology Blast turbines Part cleaning and quality To be effective the blast media must be accelerated to very high speeds. Roesler achieves this by constantly improving the turbine technology, especially the throwing blades, which are key to achieving the required media throwing speeds. The cleaning and blown off after processing are specially designed for their particular range of parts. The centrifugal force of the turbine accelerates the blast media to the required throwing speed. Compared to air blast systems turbines require a relatively low energy input and provide a very...

 Open the catalog to page 3

De-flashing of thermoset materials Blast media The path to the de-flashing of thermoset and highly filled thermoplastic workpieces leads through the sophisticated complete solutions offered by Rösler. By performing highly informative field tests, we always find the ideal solution for the wide-ranging requirements of our customers. Along with the decision for a specific machining process, this also includes the selection of the proper auxiliary equipment and consumables. The various de-flashing applications require a wide range of different media. Low media consumption combined with the...

 Open the catalog to page 4

SAB 370-SK 1+1 wire mesh belt machine This SAB wire mesh belt machine is a compact high performance de-flashing system. Equipped with two blast turbines, it is ideal for continuous feed de-flashing of small to medium size quantities of thermoset and highly filled thermoplastic work pieces.

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Technical description The raw work pieces are placed on the wire mesh belt by hand or a handling device. They are passing through the de-flashing zone at a preset, adjustable speed, while being exposed to the blast stream of the two turbines located above and below the belt. After de-flashing the finished work pieces are passing through a blow-off station where any residual blast media is removed from the work piece surface. The work pieces are then discharged through a chute. For the automatic de-flashing of: Special equipment: }} Parts carrier system for individual parts which are...

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SAB 470-SK 2+2 wire mesh belt machine This SAB wire mesh belt machine is a high performance de-flashing system. Equipped with four blast turbines, it is ideal for continuous feed de-flashing of large quantities of thermoset and highly filled thermoplastic work pieces.

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Technical description Four blast turbines – two placed above and two placed below the wire mesh belt – produce a highly intensive de-flashing process with uniform finishing results. After the turbines have thrown the blast media, a bucket elevator transports it to a cascade air wash separator located above the turbines removing dust and other contaminants from the media. Special equipment: }} Parts carrier system }} zone extension Inlet }} be additionally equipped with up Can to four blasting nozzles For the automatic de-flashing of: }} Medium size to large work piece quantities }} Medium...

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CONTINUOUS FEED SYSTEMS SBSK 1201 loop belt machine The loop belt machine is ideal for the continuous feed de-flashing of medium quantities of bulk produced, relatively small thermoset and highly filled thermoplastic work pieces.

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Technical description The raw work pieces are transferred into the de-flashing machine by an angled belt conveyor in combination with a vibratory feed chute. The rubber loop belt is equipped with cams that are arranged in an auger-like fashion. While the work pieces are constantly tumbling over each other, the cams are gently pushing them forward through the blasting zone at a preset speed. The SBSK is equipped with one blast turbine placed in the roof of the machine housing above the loop belt. With its compact design and small footprint the SBSK 1201 offers the efficient de-flashing of...

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