Spare Parts for Astoria Machines
Commercial machines work hard, and the parts that touch the coffee wear first. This collection focuses on the group head seal and portafilter, two items that affect whether a shot seals and flows properly.
Group Head Seals
The seal sits between the group and the portafilter and keeps water inside the brew path. Signs of wear include drips around the rim, a portafilter that locks further round than before, and rubber that has turned hard, shiny or cracked. Sizes differ between machines, which is why we list an 8mm seal and an older 6mm style separately. Check the shower screen at the same time, clean the seating channel, and expect a new seal to feel firm for the first few days.
Portafilters
We list a standard Astoria portafilter, a Plus4U portafilter and a CMA bottomless portafilter. Portafilters need to match the group, so confirm your model and the existing handle before ordering.
Before You Order
Measure or photograph the old seal, note your machine name and check the title carefully. Service intervals depend on how many drinks you make, so a busy cafe will need replacements more often than a home user.
Jetblack Workshop and Parts Store
If you would rather not do the job yourself, our workshop can fit seals and service the machine. For information about the brand itself, see the Astoria collection.
