| Chamber temperature | 200°C max chamber; OEM positions 180°C as the key PEEK/PEI process proof | 90°C maximum chamber | 100°C+ actively heated chamber | 180°C listed chamber / adaptive heating system | PEEK-250 wins on full-chamber heat among desktop-sized FFF options; Apium is close thermally but much smaller. |
| Nozzle temperature | 480°C max nozzle | 500°C dual nozzles | 500°C independent dual hotends | 540°C full-metal hot end | Competitors can advertise hotter nozzles, but PEEK success is usually chamber-limited, not nozzle-only. |
| Build platform | 200°C platform | 160°C bed | 200°C true self-leveling bed | 160°C bed | PEEK-250 and 22 IDEX both hit 200°C bed class; PEEK-250 pairs it with the hottest chamber. |
| Build volume | 250 × 250 × 300 mm | Up to 305 × 305 × 406 mm | 350 × 350 × 450 mm | 205 × 155 × 150 mm | PEEK-250 is not the largest; it is the compact high-chamber option. For bigger parts, Rev1 should discuss 22 IDEX / FUNMAT / larger CreatBot systems. |
| Extrusion / support strategy | Single extruder; direct-drive high-temp workflow | Dual nozzle industrial support-material workflow | True IDEX dual independent extrusion | Single high-temp extrusion platform | If soluble/support complexity is the priority, dual-nozzle or IDEX machines may be stronger. If chamber heat is the priority, PEEK-250 is the story. |
| Annealing / crystallization approach | In-printer direct annealing for PEEK / PEI; avoids removing the part before heat treatment | Advanced thermal design; no in-printer annealing claim used here | High-temp open-material workflow; no in-printer annealing claim used here | Adaptive heating approach reduces post-process annealing need for smaller parts | This is a strong differentiator: PEEK-250 turns chamber heat into a simplified post-print workflow. |
| Best fit | Lab / engineering team needing compact, very hot chamber for PEEK, PEI, PEKK, PPSU trials and low-volume parts | Industrial team needing dual nozzles and a larger chambered machine | Shop needing large open-material IDEX production flexibility | Specialized polymer lab needing compact German PEEK process control | Rev1 should position PEEK-250 as the “highest chamber heat in a compact professional footprint,” not as the largest or most multi-material machine. |