CIME Espresso Machine Group Seal Kit

A CIME espresso machine group seal kit is a complete set of sealing components for the group head — the part of the machine where the portafilter locks in and brew water is delivered to the coffee puck. This kit includes everything needed to restore a proper pressure-tight seal at the group head, eliminating leaks, restoring portafilter lock tension, and ensuring consistent 9-bar extraction pressure shot after shot.

What Is Included in the CIME Group Seal Kit?

• Group head gasket (portafilter seal)
• Shower screen
• Group O-rings and seals

All components are OEM-specification and sized specifically for CIME group heads. The kit contains every consumable seal component in the group head assembly, so you can complete a full group service in one go.

Which CIME Espresso Machines Is This Kit Compatible With?

This seal kit is designed for CIME commercial and prosumer espresso machines with a standard CIME group head configuration. If you are unsure whether this kit fits your specific model, contact our technicians with your machine’s model number (found on the base plate or rear panel) before ordering.

How Often Should You Replace CIME Group Seals?

Group seals should be replaced every 6–12 months under regular use in a café environment, or every 12–18 months for home use. Replace immediately if you notice any of the following: the portafilter is difficult to lock or feels loose, water or steam leaking around the group head during extraction, inconsistent shot pressure or channelling, or visible cracking and deformation of the existing gasket.

How to Replace CIME Group Seals

Group seal replacement on a CIME machine is a straightforward maintenance task. Allow the machine to cool completely, remove the shower screen and diffuser plate, extract the old gasket using a flathead screwdriver or gasket pick, clean the group head recess thoroughly to remove any rubber residue, and press the new gasket firmly and evenly into place. Reassemble and run a blank shot to check for leaks before use. If you prefer a professional installation, Bear Coffee Machine offers in-house servicing.

What Happens If You Don’t Replace Worn Group Seals?

Worn group seals cause a progressive loss of pressure at the group head. Early signs include a slightly loose portafilter and minor steam leaks during extraction. Left unaddressed, the gasket will harden and crack, leading to significant water leaks around the group, channelling in the coffee puck, under-extracted espresso, and potential damage to the group head body from prolonged heat and moisture exposure.

Frequently Asked Questions

What is a group seal kit for an espresso machine? A group seal kit is a set of replacement sealing components — typically a group gasket, shower screen, and O-rings — that maintain a watertight, pressure-tight connection between the portafilter and the group head. Replacing these components regularly is the most important routine maintenance task for any espresso machine.

How often should I replace the group seal on my CIME machine? Every 6–12 months in café use, or every 12–18 months for home use. Replace sooner if you notice leaks or a loose portafilter fit.

Is this kit compatible with all CIME models? This kit covers the most common CIME group head configurations. Contact us with your model number to confirm compatibility.

Can Bear Coffee Machine fit these seals for me? Yes — we offer in-house repair and servicing for CIME machines. Contact us to book.