Custom Hydraulic Knife Making Press
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- เผยแพร่เมื่อ 26 ต.ค. 2023
- An overview of my custom designed and homemade knife making hydraulic press. This is the press I use to make all of my Damascus billets for forging custom knives.
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Dang. I’ve been using a modified log splitter forge press and one day I’m going to make something like this. Definitely giving me some ideas 👍🏻👍🏻
Awesome build. I need to make one myself.
Good simple design. I like how you can access from the narrow side as well.
Very nice - well done
Simple and effective!!
Best DIY I’ve seen
Thanks, I wanted something simple and compact so this was the design I came up with.
Você está de parabéns, excelente trabalho. Servirá de inspiração para fabricação da minha prensa para cutelaria. (Congratulations, excellent work. It will serve as inspiration for making my hydraulic press for cutlery.)
I like the design and might just steal some or most of it.
Appreciate the feedback Justin, if you have any questions I would be happy to answer them.
Best DIY design I've seen yet !! I am wanting to follow your lead and copy your design for myself !! can you tell me what size dies you are using ? I'm also wondering how wide of a billet you normally do with your press ? would you be willing to give with and depth dimensions ? I know you state approximately 2"between 2x2 supports how wide is that ? I'm think 12-16' wide ?? such a nice design I appreciate you sharing it with everyone !!!
Thanks for the feedback. The dies are built on 1/4" thick, 3"x6" plate steel. The flat die in the video is 1" thick by 2"x4" and welded to the 3x6 plate. All of my dies are built on this size plate. My typical billet size is 1.5" wide and anywhere from 4 to 8 inches in length depending on what I am making at the time. I usually use 1.5" wide billets so I can pass it between the uprights on the side when setting my initial forge welds. The overall width of the press frame is 12 inches. The top and bottom plates are 1" thick, by 6' x 12". I used the same size for the cross member at the top where the cylinder attaches, and for the cross member with the die attachments at the end of the ram. The large cross member on the bottom that holds the bottom die is 2" thick by 6" x 12". If you look at the pictures at the end of video you can see how I put the press together. Hope that helps.
Im about to build one!
Good luck, if you have any questions I will try to answer.
Looks just like my Coal Iron Works 12 ton. It does not auto return to you can use it as a vice. Coal Iron Works mounts the hydraulic unit on top of the reservoir so it is an uber compact unit.
Forge On!!!
Less the 5000 price tag right?
I have less than $1K in materials to build this press.
Really Really cool Press !
Could you tell me approximately how much it cost to purchase everything it took to build this unit ? Thanks in advance.
Hi Keith
It cost approximately $900 in parts (cylinder, pump, detent valve, motor, suction hose, electric motor, wiring, etc..) and maybe another $2-300 in steel. I had some steel left over from some other projects that I used. Mind you that steel prices along with everything else has gone up so overall cost might be higher than what I am stating here. Hope this helps.
Michael
Thanks for the reply for sure. That’s not as bad as I had figured. But unfortunately I got rid of all my steel and pipe after I retired and we moved. That the way things go but still that’s worth building. You did a class act craftsman work on your assy. Well done Sir.
This is a great source of information. Thank you. I have many questions regarding calculations of motor speed, pump capabilities, hose psi, cylinder diameter, and stroke. I have a press with a very large cylinder in diameter fairly short in stroke and running off of 110 AC 2 hp motor capabilities. The stroke is very slow and I need to speed it up and would like to know how to determine appropriate and safe changes. Do you have any recommendations for reference material or calculations? Thanks in advance!
Taylor, thanks for the question. I am not a fluid mechanics\hydraulics expert by any means. I did my own research on the limits and pressures of the equipment I purchased to make this press. Hydraulics can be very dangerous due to the very high pressures involved. I recommend that you reach out to the manufacturer of the equipment you have to get their recommendations on how to configure or speed up your hydraulic cylinder. Serious damage or injury can happen if you exceed the speciation's\pressures that your cylinder, pump, and hoses are rated for. If your wanting more speed than what your cylinder is rated for you may need to consider redesigning your configuration to meet your requirements. Hope this helps.
Michael
Thanks!
Building me another as we speak
On those auto return valves, do they have a way to make it Manuel return so you could use the press as a vise if needed?
The auto return is a safety feature that is set at the factory at 3000 PSI to prevent blowing hoses or damaging the pump and cylinder. It is adjustable but I personally would not change it. High pressure hydraulic oil is dangerous. With that said, I use my press like a vise all the time to hold pieces in place. I simply apply down pressure until it locks in place and release the valve handle. It will not move unless I release it or reach the 3000 PSI max pressure. So the cylinder will stay in place until you decide to apply more pressure or release it.
@@MichaelJonesCustomKnives oh, I missunderstood the definition of auto return. Seen some presses where the cylinder retracts soon as you let go of the lever, which could be handy at times, and a P.I.T.A. other times.
In this setup the cylinder does not auto retract when you let go of the handle, the cylinder will stay put. It only auto retracts when the 3000 PSI limit is reached.
Any braces under the table? The 2" x 2" frame is supported by what?
At the end of the video I included some photos of the cart frame. There are 2 square tubing crossmembers welded into the cart frame and the press frame is bolted to that. Look at the video at the 13:03 timestamp and you will see some photos of what I am describing.
what is your cost of parts ?
Dan - I answered a similar question about cost to build this press in the comments below. Please look at @keithmarshall62 question in the comments and my reply. Thanks