AM Solutions closes the powder loop for up to four SLS printers
DFS feeds one EOS system and PMS up to four; the enclosed material path still requires blend and finished-part validation.
From powder preparation back to the printer AM Solutions has commercially released two material-feed systems: the Direct Feeding System returns processed powder to one EOS polymer SLS printer, while the Powder Management System serves up to four. The relevant novelty is not sieving or blending virgin powder but automating the link between preparation and printer feed that previously required manual transfer.
In the stated workflow, D1 unpacks parts, F1 blends reclaimed and virgin powder, sieves and conditions it, then DFS or PMS transports the material. The official F1 page specifies a 245 micrometre ultrasonic sieve, ±2% dosing accuracy and up to 40 kg per hour for PA12. These are vendor specifications, not independent production-capability results.
One printer or four DFS feeds one EOS SLS system. Processed powder moves from a Polybox through grounded aluminium pipework, with a stated maximum distance of 15 metres. The company says it uses existing F1 controls and transport components without another pump or utility supply. Real installation still depends on bends, powder flow, grounding, cleanability and material-change procedure.
PMS feeds up to four EOS printers from two Polyboxes with 180 litres usable volume each. Automatic switching can maintain continuity, while level lights identify a required change. This may reduce powder-starvation stops, but the public release provides no hours, availability, transport-loss or blockage statistics.
Enclosed does not mean risk-free AM Solutions highlights recirculation and filtration and says manual contact is almost eliminated. Enclosed transfer can reduce spills and airborne dust, yet container changes, filter service, cleaning, sampling and fault recovery remain exposure points. Local extraction, PPE, static control and waste rules still need alignment with the powder safety data sheet.
EOS has used PMS under production conditions, while AM Solutions says DFS ran for about ten months with an EOS P3 NEXT and F1. That is useful operating history, but no comparative cycle time, labour hours, scrap rate or part-property dataset is public.
What commissioning must prove Automated movement does not establish powder fitness. Commissioning should reconcile virgin and reclaimed mass, blend ratio, sieve loss, container residue and actual printer consumption. Samples after blending and at the feed point can reveal segregation, moisture change or contamination caused by transport.
A four-machine installation also needs machine identity and recipe permissions. One incorrect container or route could affect several builds. Line clearance, material and colour change, recall traceability and overfill prevention without direct printer communication all require explicit acceptance tests.