Would be grateful for names of companies that provide springs for espresso machines. Do we have a source for 1970s-era machines? Italian ricambi?

Regards
Timo

have only ever seen springs categorised by maker, not by dimensions. Makes it hard for you I guess (as I've never seen a listing for Oly). A friend of mine has had springs made locally for about the same price as importing them. Maybe this avenue is open to you?

If you post the dimensions I can have a look through my parts bin to see if a common gaggia or faema one fits.

Thanks, Paul, I appreciate the offer very much. I would consider custom made if nothing can be found off-the-shelf.

We have two options. We can replace the original spring with a heftier one, or we can augment the original spring with a second one with wire on the thin side.


Hefty single spring:

Approximate length: 85mm
Maximum outer diameter: 44mm
Minimum inner-diameter: 15mm
Wire thickness: 5-6mm



Lighter weight ancillary spring:

Approximate length: 85mm
Maximum outer diameter: 44mm
Minimum inner diameter: 30mm
Wire thickness: 3-4mm


Regards
Timo

Timo,

I assume you already checked that mcmaster.com doesn't have one that comes close. They have some seemingly appropriate springs for espresso making

timo888 wrote:Thanks, Paul, I appreciate the offer very much. I would consider custom made if nothing can be found off-the-shelf.

We have two options. We can replace the original spring with a heftier one, or we can augment the original spring with a second one with wire on the thin side.


Hefty single spring:

Approximate length: 85mm
Maximum outer diameter: 44mm
Minimum inner-diameter: 15mm
Wire thickness: 5-6mm



Lighter weight ancillary spring:

Approximate length: 85mm
Maximum outer diameter: 44mm
Minimum inner diameter: 30mm
Wire thickness: 3-4mm


Regards
Timo

Have you tried "Lee Stock Springs" http://www.leespring.com/?
Spring Calculators:
http://www.engineersedge.com/spring_comp_calc.htm
and:
http://www.efunda.com/DesignStandards/springs/spring_calculators.cfm
AND: A stainless steel spring has about 10% less force than a Carbon steel one of the same dimensions.
Hope you find the one you are looking for!
richard

espressme wrote:Have you tried "Lee Stock Springs" http://www.leespring.com/?
Spring Calculators:
http://www.engineersedge.com/spring_comp_calc.htm
and:
http://www.efunda.com/DesignStandards/springs/spring_calculators.cfm

Thanks for the sources, Richard. I had begun to look but had uncovered nothing as extensive as Lee. I like that they have a metric option

Regards
Timo

P.S. But minimum quantity 10

timo888 wrote:Thanks for the sources, Richard. I had begun to look but had uncovered nothing as extensive as Lee. I like that they have a metric option

Regards
Timo

P.S. But minimum quantity 10

I used to "shmooze' them on the phone and the sales person would usually kick in a free sample of the correct part number, or even bracket the specs with a few either side.
You never heard this from me!
sincereely
ricahrd

would motorcycle springs possibly be useful? either new say from http://www.progressivesuspension....springs/index.html or used from a junkyard, used motorcycle fork springs could be picked up quite cheaply and would give you many options in spring rate to choose from. they would of course not be food safe but, depending on application that might not matter, or a treatment like this http://www.kgcoatings.com/additional.html#1 could be used. I have used both Gearkote and Gunkote, mostly on motorcycle parts, but also on a doserless spout I did for a Rossi RR-45, it really works quite well.
this is my first post here

mandioca wrote:would motorcycle springs possibly be useful? either new say from http://www.progressivesuspension....springs/index.html or used from a junkyard, used motorcycle fork springs could be picked up quite cheaply and would give you many options in spring rate to choose from. they would of course not be food safe but, depending on application that might not matter, or a treatment like this http://www.kgcoatings.com/additional.html#1 could be used. I have used both Gearkote and Gunkote, mostly on motorcycle parts, but also on a doserless spout I did for a Rossi RR-45, it really works quite well.
this is my first post here

Welcome to the group and frienships!
Thanks for a new possible source!
Here is another spring manufacturer that I have used:
http://www.alliedspring.com/products.htm
enjoy
richard