Air pipes

Make your own hydraulic press from plastic pipes

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Hydraulic presses are fantastic kit pieces. But most cost a ton to buy or take a lot of effort to build. However, it turns out that you can create a miniature version using very basic materials.

Read on to find out how.

Source: Mister Construction/YouTube

As you can imagine, you will need some tools and materials before you begin.

Materials and equipment needed

  • Various threaded connectors
  • Brass Threaded Pipe Fitting
  • Plastic piping
  • plastic sheeting
  • Rubber seals
  • Caps
  • Metal tube
  • Wood
  • One-way valves
  • Drain valve lock
  • ice roll
  • Various nuts and bolts
  • Basic tools
  • A few things to crush

With all your gear in hand, it’s time to get started on this awesome little build.

Step 1: Make the press head

The first step is to take one of your threaded connectors and wrap a roll of ice cream around its threaded end. With that done, connect that wire to another to create a tight seal between the two.

Next, take one of your caps and glue it in place over the two threaded connectors.

diy hydraulic press head
Source: Mister Construction/YouTube

With that done, drill a pair of holes through the cap as shown in the video. Widen the holes as needed for the hydraulic tubes. Next, take one of your hose connectors, heat the threaded end, and screw it into place through one of the holes in the plastic cap.

Rinse and repeat for the second hole.

diy hydraulic press hoses
Source: Mister Construction/YouTube

Next, take your plastic pipe and insert it into the threaded connectors. With that done, cut out a series of plastic discs and build a piston for the hydraulic system using a threaded metal rod and nuts.

Sand the discs to the correct diameter needed for the plastic pipe. Glue all the pieces together as needed.

diy hydraulic press piston
Source: Mister Construction/YouTube

Also add a rubber seal to the piston. With that done, take more lengths of tubing and plastic caps and build the main piston housing as shown in the video.

Connect this assembly and the piston to the pipe section as shown in the video. Connect all parts tightly to make sure they are fully sealed.

That done, partially disassemble the parts you just made. Take your spray paints and paint the parts as needed.

diy hydraulic press head
Source: Mister Construction/YouTube

In this case, the parts have been colored black. Let them dry completely before continuing. Once dry, reassemble the pieces as needed and add other details like decals etc as needed.

Seal seams with more icing tape as needed.

Step 2: Make the frame for the press

Now that this main press head is complete, we can move on to making something to mount the press head. Take wooden and metal tubes and cut them as needed.

Weld the lengths of metal tubing together to create a miniature table-like frame for the press head. Once done, attach the wooden “table top” to the top of the frame as needed.

diy hydraulic press frame
Source: Mister Construction/YouTube

If you haven’t already, dig a hole in the middle of the wooden top big enough to hold the press head in place. Once this is complete, insert the hydraulic press head into place.

If desired, you can also paint the metal frame to match the main press head as well.

Step 3: Connect the hydraulic system

Then take our one-way valve and rubber tube. Connect the tubing to the one-way valve as needed.

Attach your drain valve lock as shown and connect one end of the rubber hose to one of the hose connectors on the press head.

Next, take your hydraulic pump and attach the other end of the one-way valve tube as needed. Once done, connect another length of rubber hose to the last hose connector on the press head.

diy hydraulic hydraulic press
Source: Mister Construction/YouTube

Decant hydraulic fluid into a plastic cup, or other reciprocating container, and immerse the press head free tube and the other pump free tube in the same cup.

Turn on the pump and allow the hydraulic system to flood with fluid. Continue to run the pump until all air bubbles are pushed out of the system.

Once done, turn off the pump and plug the open end of the press head tube. Turn off the pump and you should see the press sink.

diy hydraulic press fluid
Source: Mister Construction/YouTube

Once the head is fully depressed, turn off the pump, remove the exhaust pipe cap from the head, and gently push the press head upwards to drain the liquid and reset the press.

Close the tube and your press is ready to go! Good grinding.

If you enjoyed making this small hydraulic press, you might enjoy another crushing machine related project. How about, for example, making your own 20-tonne hydraulic press out of scrap metal?