PEEK can be printed at a maximum temperature of around 482°F (250°C) and a minimum extrusion temperature of around 356°F (180°C). These high temperatures are required to melt the PEEK material and form it into the desired shape. The exact printing temperature for PEEK may vary depending on the specific type of PEEK and the 3D printer being used. It is important to note that PEEK is a high-performance thermoplastic that requires high temperatures to print, and not all 3D printers are capable of reaching or sustaining these temperatures.
It’s worth noting that not only the extrusion temperature but also the bed temperature are important factors for a successful PEEK print. The bed temperature should be around 150-170ºC for most PEEK filaments and for some grades of PEEK the bed temperature should be around 200ºC.