7+ [Steps] How to make hydraulic crane with Syringes?

Hey! Welcome to the world of creativity. In this Article, we gonna share you some simple and 7+ Easy Steps about “How to Make Hydraulic crane with Syringes”. Let’s Begin with some information first :

Now, every day you see crane and JCB doing construction near you. Most of you will be aware of how it works, if not no need to worry because this post is going to help you to know about how to make hydraulic crane, their benefits, their working principle, and how to make a model of it which will almost do what real JCB and Crane do but in a small level. After reading this article you will understand “how to make hydraulic crane”. So, read this article until the End.

Benefits of hydraulic crane:-

Real model do lot of things during construction like they can dig holes, they can carry load etc. But as through this post you are going to make a model it will do all work but at a small level. And, this will also help you in lifting prize in your science fair as mostly these type of projects wins.

Working Principle of hydraulic crane:-

Now hydraulic crane is ‘application of Pascal’s law ( also Pascal’s principle or the principle of transmission of fluid – pressure)’ is a principle by Blaise Pascal which says that a pressure change at any point in a confined incomprehensible fluid will be transmitted throughout the fluid such that same change occur at every one point. In simple, it works on the principle of transmission of force through the fluid. Hope, you will understand about how to make hydraulic crane after reading this whole Article.

How to Make Hydraulic Crane?

Materials required:-

  • Infusion set (for pipes)
  • Syringes (for each hydraulic function you will require two syringes, so you calculate its number)
  • PVC pipes (two of different size to make body)
  • Strong cardboard { you can use any other too as with the help of this we are going to make bucket (a front part of JCB that pick up substance)}
  • Wood or any hard material for base
  • Drill machine
  • Hot glue

Step 1 : Take out the plastic pipe from infusion set:-

For this process use cutter to cut pipe (be careful while using cutter). After getting the pipe follow these steps:-

assembled pipe for hydraulic crane
Assembled Pipe for Hydraulic Crane
  1. Connect one water filled syringe to one end of pipe. And leave the other end open.
  2. Now, slowly push the plunger of syringe to make water flow through the pipe. When all pipe is filled with water put the another end (which you leaved open) in a container filled with water and slowly pull the plunger of syringe until it fills.
  3. One last step that is to attach syringe to another end. Wow! you are done. Follow the following step to know how to make body and how to connect hydraulics.
assembled wood for hydraulic crane to stand
Assembled Wood for Hydraulic Crane to Stand

Step 2 : Drill the hole at point A:-

Use drill machine and make a hole at point A (according to diagram) on wood or anything else which you choose as a base for your model.

Step 3 : Attach the pipe to the wood:-

For this step, take out a circle piece from wood (you can use another materials too) of same as the pipe ‘B’ (according to diagram) ends. Make a hole on that circle and attach the circle to the pipe ‘B’ with glue.

Step 4 : Connect the pipe to point A:-

For connecting them use strong wire. Take the wire passed it through both hole and make tight knot on both the ends. If you use another method make sure that pipe is free in motion.

Step 5 : Connect pipe ‘C’ to pipe ‘B’ (according to diagram):-

Make some space for pipe ‘C’ in pipe ‘B’. And connect pipe ‘C’ to ‘B’. Make sure that pipe ‘C’ is free in motion and leave some part of pipe ‘C’ at other end (as given in diagram).

Step 6 : Connect a piece of plastic or wood to point ‘C’:-

Make a hole at the end of pipe ‘C’ and on particle ‘D’ then connect them with same like step 3. Make sure ‘D’ is free in motion.

Step 7 : Connect bucket (particle ‘E’, according to diagram) to ‘D’:-

First to know how bucket looks see diagram or for better result search on Google ‘bucket of JCB’. While joining particle ‘E’ to ‘D’. Make sure that ‘E’ is not free in motion.

Step 8 : Connect hydraulic to parts, which are free in motion :-

For connecting syringe use hot glue. While connecting syringe body to body of model make sure that you not glued plunger of syringe(end grey part of syringe). And for make movement of pipe ‘ B ‘ connect a small pieces of plastic or wood (same like the diagram) and then connect that piece to syringe. Similarly, connect plunger of syringe to pipe ‘C’ and body of syringe to pipe ‘B’. And last step that it to connect plunger of syringe to particle ‘D’ and body of syringe to pipe ‘C’. Now you are done.


  • While choosing pipe (or infusion set) make sure that the pipe get easily fit to your syringe.
  • While filling pipe with syringe make sure that there is no air gaps. To avoid air slowly push or pull the plunger of syringe while filling syringe and pipe.
  • Make sure that you connect plunger of syringe to moving part and also not forget to connect body of syringe to corresponding part to give syringe support.


  • Sometime length of syringe is so long that you are unable to fill it with water so in that case connect another end of pipe which you leaved open to another syringe then remove first one and fill it again then connect that filled syringe to one end and remove the another syringe. And continue the same process of pulling and pushing.
  • If you only want to make simple crane you don’t need to do step 7 on place of it you can simply make a hook with the help of wire for your crane.
  • Also read :- How to Make Vacuum Cleaner?

Hope, you understand with this article about how to make hydraulic crane. If it was helpful for you. Please share it.

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