Yes, the attachments can be purchased separately:
12 vessel attachment P/N 036303540 (US) / 549-03000-00 (worldwide)
26 vessel attachment P/N 036303530 (US) / 549-01600-00 (worldwide)
Send us your requesrt, if you are interessted in Hei-MIX addons or attachments. We will take care of your needs.