Make a 40$ Cold Juice Press!

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Introduction: Make a 40$ Cold Juice Press!

Cold Juice Presses are expensive. The one that I bought does not even work propperly. So I decided to come up with something better, simpler and most of all cheaper!

I belive that we as a society can become healthier by juicing. Not just because of the vitamins and the minerals, but even just because a glass of juice could replace a poptart, a cheseburger or a can of coke.

Materials you need:

Esential tools:

Optional tools:

Super Simple Safety Advice:

  • Keep your hands as far away as possible from anything that moves.
  • Wear safety shoes.
  • Wear safety glasses.





Step 1: Make the Juice Tray

Making the tray was easier than I thought. If in doubt, apply more force : )

The sheet metal should be less than 1.5mm thick. You can bend it with a metal break, but since most people don´t have one at home, I used pieces of plywood as guides. The basic idea is to clamp everything down that you want to stay flat so the bends only form where you wan to.

Start with the sides, than do the back and finish with the funnel at the front. At some point you need to trim the sheet metal at the funnel. Use an angle grinder with a cutoff disk. You don´t need to get a stainless steel disk for that. Any cuttoff disk will do.

Of course if you have a welder you can do this without the overlapping corners.

Step 2: Cut the Wood!

You need 4 pieces of plywood. The rough sizes are below, but you should choose them according to the juice tray you already made. The thickness of plywood should be about 40mm. Thicker is better. To thin and it will just break. I did some FEA analysis, and it came to about 38mm, but this value is only a rough guide.

  • 2x plates for the top and bottom. (300mm x 300mm x about 40mm)
  • 1x plate for the tray holder. (220mm x 220mm x 220mm x about 40mm)
  • 1x block for the plunger that does into the metal tray. (160mm x160mm x about 40mm) This depends on your tray dimensions.

The good thing is that precision is not important!

Step 3: Finish the Top and Bottom Plates.

Drill out the holes to match your threaded rods. I used 10mm threaded rods which are required for a 5 ton press.

You can add a nice roundover to the edges with a disk sander or a jigsaw and an orbital sander. I made mine match the diameter of the washers that I was going to use later. Washers are esential!

Give the wood a light sanding up to 180 grit to prepare them for paint.

Step 4: Cut the Threaded Rod.

You can use a hacksaw or an angle grinder to cut the threaded rod. It should be at least 10mm for a 5 ton press. A flapdisk can be used to smooth out the ends.

Step 5: Make the Plunger

The plunger pushes into the metal tray and needs to take a lot of pressure. I made mine from the same plywood and used some scraps glues together for this. The force is only compressive perpendicular to the glue line, so glue is all we need. The dimensions should be chosen so it fits into the metal tray with about 2 fingers of space to all sides.

I recommend using a couple of screws for the glue up. The wood slides on the wet glue and makes a mess.

You can give the bottom edge a round over. That makes it easier to remove the plastic plate later on.

Step 6: Finish the Tray Holder!

The tray holder is basically just a piece of thick plywood. You can add little rails to the sides so the juice tray does not slide around.

I gave my tray holder some chamfers around the edges. This makes it appear lighter. I guess it actually is lighter.

The tray holder needs to be reasonable thick because it transfers all the force from the hydraulic jack. I got one of those hand rail flanges to attach the juicer to the hydraulic jack. A thick piece of steel fromt the hardwarestore transfers the pressure from the hydraulic jack.

Step 7: Paint!

Did I mention this is my favourite part?

The goal to a good paint job is good paint and a clean environment. I clean my entire shop and cover the entire area with plastic, so no dust can be blown up.

  1. Start with a wood primer and do a light sanding after the first coat. This removes the wood fibres that rise up on the first coat. This happens with any paint, even with plain water.
  2. Add a thin coat of paint and let it dry fully.
  3. Sand the first coat of paint lightly with 120 grit sandpaper. Clean off the dust thoroughly!
  4. Apply another coat of paint.
  5. Repeat until you like the finish.


I also painted the hydraulic jack green. Just because I could.

Step 8: Make a Plastic Plate for Food Contact.

The only thing that should come into contact with the juice should be food safe. Stainless steel is fine for the tray and at the top, I added a plastic plate. I ordered a cheap HDPE cutting board and cut it to size. HDPE can be cut extremely easily with any woodworking tool.

(The leftovers can be great rails for a cross cut sled.)

Attaching it:
I used magnets and dowels for allignment. Its very difficult to glue anything to HDPE, so I screwd counter sunk screws into the plastic and glued the magnets into the wooden plunger that we made earlier. This works very well! Two dowels is all you need for allignment. There won´t be a lot of force acting on them.

Step 9: Pimp the Hydraulic Jack!

These hydraulic jacks are great, but the handle and the pressure release handle are not very conveniant. We can fix that!

There is this really cool plastic that you can melt in boiling water. It is quite strong, not brittle, and you can re-melt it over and over again. I used this numerous times and it is often much easier and better than fabricating something out of wood or metal. I used it to make a little level for the pressure release knob on the hydraulic jack. This lever is used very frequently and should be easy to grab without having to use tools.

I joined both parts of the handle with screws and tapped holes. I also attached the handle permanently to the hydraulic jack.

Step 10: Final Assembly!

Now that all the parts are build you just need to assemble it. This should be straight forward by now. Well done!

A few tips:

  • Use nylock nuts!
  • Use one of those locking pliers to hold onto the threaded rod.
  • Use a cordless drill. Why make life dificult? Thats what kids are for.
  • Pre drill any screws that you add to the plywood.

Step 11: Admire Your Work.

You build a beautiful cold juice press that will provide tons of vitamins and minerals. Give yourself a pat on the back!

Step 12: Juice!

This is what we all have been waiting for. The healthiest thing you can drink, made from scratch with your own hands.

  1. Dice your fruits using a food processor. Soft fruits like cucumbers, oranges and watermellon can be juiced straight away, just remove the shells.
  2. Place a batch of chopped fruits and vegetables into a chese cloth.
  3. Place the chese cloth in the press and start juicing.
  4. The juice will flow out of the juicer very easily.
  5. Enjoy!

Invention Challenge 2017

Second Prize in the
Invention Challenge 2017

Gardening Contest 2017

Participated in the
Gardening Contest 2017

1 Person Made This Project!

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39 Comments

0
SpencerW
SpencerW

3 months ago

The logical thing to do Max is to make and sell the tray. Its the only thing that even a child couldn't assemble. Everything else is just cutting, drilling, assembling. Anybody can do that. And think of how cheap that light tray would be to ship. Sell the tray with a parts list people can get at their local building supply store like Home Depot. You'd sell hundreds, if not thousands. Or sell most of the parts except the heavy items like the pneumatic jack.

0
Max Maker
Max Maker

Reply 2 months ago

I had a lot of people ask if I could build one for them or if they could buy the one I had. There is definitley a business opportunity here, but not for me. I have enough work on my plate. Feel free to get a kit on kickstarter!

0
LeonardL13
LeonardL13

3 years ago

Hey nice work! I'm trying to make one my own now.

What is the thickness of your stainless steel and also your cutting board? Thanks!

Note: The hyperlink to amazon seems to be a 304 stainless steel product. might want to use a 316 stainless instead since it is food grade.

0
dr.scroopynoopers
dr.scroopynoopers

Reply 8 months ago

Really both would work. I know for me 304 was more accessible. When I’ve sought out 316, they have to order in a 60x60cm sheet and thus it would make a project such as this, slightly less cost effective.
PS: 304 stainless steel is food grade; 316 stainless steel is pharmaceutical grade.

1
josephgoembel
josephgoembel

Question 9 months ago

Great instructable! Getting the parts to make it now.

Would 20 gauge 304 grade stainless be thick enough?

2
ecocentriclife
ecocentriclife

Question 2 years ago

Hello Maxmaker, do you make these juicers to sell, if so, how much does one run?

0
haadolfo
haadolfo

Question 2 years ago on Step 3

Where do we get the hydraulic and how much is it?

0
DavudM
DavudM

Answer 2 years ago

Hello, very nice job. what is the output of juice from 1 kilogram of apples or carrot?

and what kind of dicks fo food processor do you use?

1
Cislyn
Cislyn

2 years ago

Will you let me know how much you charge to make me your version of cold press juicer. I'd love one. Thanks.

0
SonamS16
SonamS16

2 years ago

Does this last as long as juice from commercial cold press?

0
SonamS16
SonamS16

2 years ago on Step 12

What is the shelflife of this juice?

0
DanielP661
DanielP661

Question 2 years ago

Have you tried with wheatgrass?

0
GurubandhuK
GurubandhuK

3 years ago

Very nice job. What do you use to grind the veggies? That is the other half of the project.

0
GiovannyP2
GiovannyP2

Reply 3 years ago

Yo uso un extractor de jugos centrifugo al que le tapo el angeo para que el jugo se exponga menos al aire; al cesto donde usualmente va a parar la pulpa procesada, también va a parar esa pulpa con su jugo, luego la paso por la prensa hidráulica de 4 toneladas.

Acá adjunto la imagen del extractor centrífuga que uso como triturador y de la prensa hidráulica que hice gracias al tutorial de Max Maker.

1518183789328810709433.jpg15181839292301309259018.jpg
0
Max Maker
Max Maker

Reply 3 years ago

A food processor.

0
Henricus
Henricus

3 years ago

Really cool! I was looking online for a juicer but this is the one I want! Did you consider doing it vertical?

0
BrendaL93
BrendaL93

3 years ago

This is AWESOME! Thank you for making this instructable and video. I've ordered most of what is needed, but have a few questions I couldn't find the answers to here or with the PDF down load. What are the measurements of your squares (top and bottom, plunger squares; both the large and small, plastic, and bottom where the tray sits? And what are the specifics of the springs and hooks? Thank you so much!

0
Max Maker
Max Maker

Reply 3 years ago

Hey, cool that you are building one! The plunger was 15x15cm and the Top and bottom plates were 25x25cm. The springs came from an old desk lamp. Just get whatever you find. Theraband rubber bands should also work.

0
BrendaL93
BrendaL93

Reply 3 years ago

Thank you so so so much!

0
Max Maker
Max Maker

Reply 3 years ago

No problem, your welcome! Please send a picture when you are done!