Who is an European supplier of heavy beehive springs?

[Gymnast]

It seems to me, that there should be a supplier of heavier beehive tension springs in Europe or perhaps China or Taiwan. They may be used for Consew 206RB or similar.

I found this supplier in USA, and the spring seems heavier by its looks and naming:

https://bobbinusa.com/walking-foot/tension-spring-extra-heavy-juki-seiko-consew-walking-foot-sewing-machine/

And this from Australia:

https://www.sewingmachinesaustralia.com.au/shop/buy-spare-parts/consew/consew-2202012-05-16-04-19-16/tension-spring-heavy-duty2012-05-16-04-43-42_24.html

I have been fooled once by a supplier just stating, that it was a heavy behive spring, but it was infact as a domestic beehive tension spring. I measured the steel thread diameter of domestic sewing machines to be 1.0 to 1.2 mm. I guess the thread diameter of the heavier springs should be 1.4 to 1.6 mm.

[fredk]

I've bought a few springs from this company (below). Perhaps they have something in their range

https://www.eurosprings.co.uk/

[Constabulary]

Like this?

https://www.college-sewing.co.uk/b3114-232-000-beehive-spring-heavy-juki-genuine.html

 

 

 

 

Edited December 18, 2019 by Constabulary

[Constabulary]

BTW - I may have a heavier spring as well if shipping at college sewing is toooo expensive - let me know. I have approx 15+ beehive springs in all kind of strengths, lengths, diameters... But I have to check how much shipping to DK would be.

[Gymnast]

2 hours ago, fredk said:

I've bought a few springs from this company (below). Perhaps they have something in their range

https://www.eurosprings.co.uk/

Thanks for this lead. I will try to contact them. I have a local spring manufacturer too, that I have used for something else. Perhaps I should ask him too about this type of spring.

2 hours ago, Constabulary said:

Like this?

https://www.college-sewing.co.uk/b3114-232-000-beehive-spring-heavy-juki-genuine.html

When I look at the picture, the spring seems not that heavy to me. But I should ask them about the steel thread diameter.

I managed DIY of two tension springs from the steel of two hooks like these: http://lesamisducircuitdenivelles.be/g/Women's-Inline-Skates/  For me a spring needed bending and adjusting with plyers for 2-3 hours to get an acceptable result. The diameter of the thread I used was 1.55 mm. So I can make it happen again, but I just liked to know if such a heavy spring is a normal replacement part - and it seems not to be.

In the tensioners I got, the domestic springs can make a reliable thread tension up to 3 N. Using the spring with 1.55 mm thread, I can get a reliable thread tension up to 9 N.

[Gymnast]

I looked at the College Sewing website and found another beehive spring with a picture of a spring that looks more heavy:

https://www.college-sewing.co.uk/1422-beehive-tension-spring-seiko-sk-6f-132k6.html 

I guess the base diameter of the spring to be 18.5 mm or about 23/32 inch. I suppose that all behive springs to sewing machines have that base diameter - am I right? Then the steel thread diameter should be about 1.35 mm based on measurements on the photo. The tension spring is supposed to be used on a Seiko SK-6F or a Singer 132K6.

Edited December 19, 2019 by Gymnast