3D-Drucker für biomedizinische Anwendungen

The procurement involves a filament-based 3D printer tailored for biomedical applications, focusing on advanced polymer production and material property characterization. The printer should utilize fused layer manufacturing (FLM) technology. Key specifications include maximum dimensions of 1000 x 2000 x 840 mm³ and a minimum build volume of ≥ 210 mm diameter and ≥ 150 mm height. The printer must handle materials such as PEEK, PEKK, Radel PPSU, PEEK CFR, and biodegradable polymers, with a layer thickness range of 0.1 - 0.3 mm and a filament diameter of 1.75 mm. Performance requirements include a printing speed of 100 - 4000 mm/min and a maximum movement speed of ≥ 9000 mm/min. Operating temperatures should reach up to 500 °C for the nozzle, 300 °C for the build plate, and 250 °C for the build chamber. An integrated clean room with a HEPA filter system is essential, meeting ISO class 7 cleanroom standards according to DIN EN ISO 14644. The printer should be clean room ready, capable of creating a clean room environment within the build chamber, and suitable for operation in clean rooms. Additional features include an exhaust air cover, a filter for compressed air, fully controllable heating of the build chamber with temperature homogeneity within +/- 5 K, and laminar air flow inside the build chamber. Adaptive local temperature management is required, allowing individual adjustment of cooling or heating for each strand and layer. The printer should have extended contamination protection for simplified cleaning and maintenance. Process monitoring must include parameters like build chamber temperature, build plate temperature, nozzle temperature, printing head movement, force at the nozzle, and filament supply rate. Accessories include a filament dryer with a laboratory oven, post-processing tools, printer tools, a post-processing station with lighting and dust extraction, and a post-processing unit. Consumables such as heat breaks, nozzles, and stainless steel build plates are also required. The supplier must provide printer-compatible slicing software with an unlimited license. Delivery, installation, and training are part of the requirements, with specific conditions for each. The manufacturer must provide maintenance within the first 24 months and a minimum guarantee of 24 months. Certifications required are CE, UL, and CSA.