- “EASY ACCESS” AND “HYGINIC DESIGN” OPTION - The crystallizers of the CTM series stand out for the simplicity of access to the mixing hopper: their characteristic “square” shape has been designed to guarantee easy cleaning of the internal parts, so as to minimize restart times between one campaign and the next. Furthermore, in the exclusive “hygienic design” version, they are perfect for all users who need not only to change the material, but also to completely clean the equipment to avoid any kind of contamination (for example, the producers of PET-based masterbatches).
- START-UP FUNCTION - In phase of start-up of the process – i.e. when the crystallizer is empty – the material is recirculated from bottom to top in order to keep it fluid during the «glass transition”. Once the start-up is done, the crystallizer is ready to work in a continuous mode. The whole phase is managed in automatic mode.
- SAVE ANNUALLY – ULTRA saves $6,500 annually at an example rate of 220lb/h (100kg/h) – whilst doing the exact same job. ULTRA delivers savings year on year for its full life cycle.
- “ANTI-DUST” MIXING SYSTEM - The mixing of the material being treated takes place via a slowly rotating reel with settable speed, which minimizes the formation of dust by rubbing.
- AISI 304 STAINLESS STEEL - All parts in contact with the raw material are made of AISI 304 stainless steel, which guarantees hygiene and the complete absence of contamination.
- INDUSTRY 4.0 & IoT - The CTM crystallizers are all managed by Siemens PLCs which allow a high degree of both horizontal (in terms of I/O) and vertical (in terms of access and remote control, data exchange and supervision) configurability. All units are equipped with a 7” touch-screen HMI operator interface.
Crystallize To Melt (CTM)
Hot-air crystallizers
Hot-air units CRYSTALLIZE TO MELT (CTM) for crystallization of amorphous polymers and biopolymers (A-PET, R-PET, PLA, etc…)
The crystallizers of the CTM series consist of a temperature-controlled air generator and a mixing hopper where the amorphous or semi-crystalline PET is stored. The air used for crystallization is optimized in terms of temperature, flow rate and pressure, factors which guarantee the efficient extraction of ethylene glycol (EG), a compound that PET releases together with water during the transition from amorphous to crystalline stat . The hoppers, on the other hand, are equipped with a slow mixing reel which, in the glass transition phase, keeps the granules or regrinds separate, preventing them from solidifying into a single block during the PET crystallization process.
Processes:
