What is an E61 group head?
E61 group heads are an espresso machine group head design that have been around since 1961. It’s a design that is very tried and true and is one that is used on many of our prosumer grade espresso machines and even some commercial machines like the Faema Legend and the Faema Jubile.
What size is an E61 group head?
Information on Gaskets: E61 group head gaskets come in two thickness’s, 8mm and 8.5mm. Some manufacturers use both sizes and some have changed from one size to another.
What is an E61 group head made of?
solid brass
The E61 is made of solid brass. The heat exchanger and a Thermosyphon system circulate hot water through the brew group, keeping it constantly heated. The significance of the E61 brew group is the mechanism in the brew head which allows for the pre-infusion of the grounds.
How does E61 flow control work?
Overview. The E61 Flow Control Device allows you to adjust the flow of water in your brew group to manually profile your extractions. This custom component is a stainless steel needle valve, which allows the user to vary the amount of water flowing through the group.
What is an E61 coffee machine?
E61 group Coffee Machine is one of the premium home espresso machines used to make a latte, coffee drinks and cappuccinos. It is the common heat exchanger, or dual boiler type of espresso unit used mainly at residential fronts.
Are all E61 portafilters the same?
The portafilters for E61 group based heat exchanger espresso machines (HX) will generally fit between all makes due to a standardized brew group. Some enterprising coffee hobbyists often modify their preferred variety to use on their machines.
Is 58mm portafilter better than 54mm?
Let’s see what the main distinctions with the traditional 58mm portafilter are. During extraction with a 9 bar pressure, the 54mm portafilter weighs about 30kg less on the coffee cake compared to the 58mm. With the same dose of coffee, the 54mm portafilter ensures a taller coffee cake.
Are all E61 Groupheads the same?
not all e-61 heads are true e-61 heads. the patent has run out and there are several aftermarket and non-faema versions, some w/o pre-infusion, and, iirc, some that aren’t even thermosyphons. Good point! At some point we should try and group the various E61 groups (original, variant, imitation) and categorize them.
What is E61 flow control device?
The E61 Flow Control Device allows you to adjust the flow of water in your brew group to manually profile your extractions. This custom component is a stainless steel needle valve, which allows the user to vary the amount of water flowing through the group.
What is E61?
Historical Side Note: Ernesto Valente invented the E61 group (shown attached to an Isomac domestic machine in banner image) and it is known as such because it first appeared on the Faema E61 espresso machine. Incidentally, the name E61 signifies the total solar eclipse that occurred in 1961, the year of its invention.
Does Rancilio Silvia have E61?
Your Silvia does not have an E61 group head.
How does the E61 group head work?
The E61 group head uses a jet and a special chamber for its method of pre-infusion. In the first stage, the pump is activated and water flows through a jet into a small cavity (#14, Fig 1), which is connected to the space above the coffee basket (#4, Fig 1).
Where is the grouphead gasket on a E61 engine?
Lever Gasket for E-61 Groups These gasket are located on the cam shaft where it attaches to the grouphead lever. Vibiemme Grouphead Teflon Gasket Located inside the grouphead under the mushroom valve. Copper Washer for E-61 Grouphead Front Some E-61 Groupheads have this washer in Teflon; some in copper.
Where is the vibiemme grouphead lever on an E-61?
E-61 Vibiemme Grouphead Lever Rod E-61 Cam Shaft Sleeve Lever Gasket for E-61 Groups These gasket are located on the cam shaft where it attaches to the grouphead lever. Vibiemme Grouphead Teflon Gasket Located inside the grouphead under the mushroom valve. Copper Washer for E-61 Grouphead Front
What kind of washer do I need for an E-61 grouphead?
Some E-61 Groupheads have this washer in Teflon; some in copper. This Compression Copper Washer is a replacement for both. E-61 Spring for the Drain Valve