TwoThumbs
Member
- Messages
- 121
- Location
- Finland
Building 20 Ton hydraulic press from bottle jack.
Been fancying about hydraulic press for several years. Around here these things are 2-3 times more expensive than UK or US where bargains can be found so decided to take matters in my own hands again.
Went to local steel scrapper to make some findings and purchased these: 140 x 60 mm U beams, 120 x 60 mm U beam, 20 mm thick plate, 60 mm solid axle, 80 x 40 mm profile.
Early sketching but as always plans will change:
After planning and cutting some steel I decided to go little wider to get more working space between uprights. Instead of putting top rails to the outside, they will go between the side beams to give me working space of 540 mm between the sides. I was also mildly worried about 140 mm space that would have been left between top beams in the first version, pressure might have been distorting structure more easily?
Welded spacers between top beams:
Welded top part to the uprights:
Started drilling holes for the adjustable bed. 8 positions with 125 mm spacing from centre to centre should give comfortable adjustment with bottle jack max extension of 150 mm. Drilling 32 holes by hand is quite big job.
Some measurements if someone will find them useful:
Uprights 140 x 60 mm x 5-10 mm thick, length 1650 mm.
Top beams 120 x 60 mm x 8-10ish mm, length 540 mm.
Total width 660 mm.
Holes will be 25 mm, 125 mm spacing and 8 positions. If I remember correctly first hole was 680 mm from the top.
Will need to figure out how to mount jack to the moving rail so that it won't fly out if things go bad.
Planning and building will continue next time.
Thanks for visiting and cheers!
Been fancying about hydraulic press for several years. Around here these things are 2-3 times more expensive than UK or US where bargains can be found so decided to take matters in my own hands again.
Went to local steel scrapper to make some findings and purchased these: 140 x 60 mm U beams, 120 x 60 mm U beam, 20 mm thick plate, 60 mm solid axle, 80 x 40 mm profile.
Early sketching but as always plans will change:
After planning and cutting some steel I decided to go little wider to get more working space between uprights. Instead of putting top rails to the outside, they will go between the side beams to give me working space of 540 mm between the sides. I was also mildly worried about 140 mm space that would have been left between top beams in the first version, pressure might have been distorting structure more easily?
Welded spacers between top beams:
Welded top part to the uprights:
Started drilling holes for the adjustable bed. 8 positions with 125 mm spacing from centre to centre should give comfortable adjustment with bottle jack max extension of 150 mm. Drilling 32 holes by hand is quite big job.
Some measurements if someone will find them useful:
Uprights 140 x 60 mm x 5-10 mm thick, length 1650 mm.
Top beams 120 x 60 mm x 8-10ish mm, length 540 mm.
Total width 660 mm.
Holes will be 25 mm, 125 mm spacing and 8 positions. If I remember correctly first hole was 680 mm from the top.
Will need to figure out how to mount jack to the moving rail so that it won't fly out if things go bad.
Planning and building will continue next time.
Thanks for visiting and cheers!
