How to make a press for the production of fuel briquettes from sawdust

Tons of sawdust accumulate in carpentry shops and sawmills. This is an excellent almost free fuel, but only for specialized stoves. If you compress sawdust into briquettes, you can use them to heat with any stove, even a potbelly stove. To do this you need to make a press. Let's look at how to assemble and automate its hydraulic system.

Basic materials:

  • Electric motor 4 kW;
  • oil pump NSh 10;
  • hydraulic cylinder;
  • hydraulic distributor;
  • oil tank;
  • high pressure hoses.

The process of assembling a hydraulic system for pressing briquettes with your own hands

There are many drawings of the press device. The main difficulty in its manufacture is the assembly of the hydraulic pressing system. In the proposed version, its power unit is a 4 kW engine. It needs to be connected through a homemade adapter to the oil pump.

The oil pump is connected through a hydraulic distributor to a hydraulic cylinder, the rod of which directly compresses the sawdust. The system is also complemented by an oil tank. From it the supply goes to the pump, and the return flow from the hydraulic distributor also drains.Essentially, the same principle is repeated that is used on any tractor.

In this form, the mechanism operates in manual mode. The rod can only be released and retracted by switching the lever on the hydraulic distributor. This is inconvenient, since the operator must load sawdust. A simple mechanism is provided for automation. The hydraulic distributor switch is connected by a system of levers to the rod. Limit switches are assembled that switch the lever according to the click principle due to the spring. The rod, having reached the end, pushes the lever itself, and the distributor switches. This mechanism works in 2 directions.

The pressed material is poured into a hopper.

And at the end, durable fuel briquettes come out.

Watch the video

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Comments (6)
  1. Guest Yuri
    #1 Guest Yuri Guests 20 October 2021 15:24
    9
    The machine is cool! Very interesting! I just don’t understand, how is the shape of a briquette in the form of a tablet formed? Why doesn’t the rod, using a hydraulic cylinder, simply squeeze the sawdust into the outlet pipe? There must be some kind of retractable partition in the pipe into which the sawdust rests and forms a hard “tablet”? In general, I misunderstood the moment of formation of the fuel briquette! And another question, do you add any additional additives to the sawdust? Or strictly sawdust and nothing more?
    1. Ivan
      #2 Ivan Guests 10 November 2022 09:20
      0
      there is no partition. the previous tablet is the stop for the next one. one stroke of the rod - one tablet.
  2. Paul
    #3 Paul Guests 14 November 2021 22:33
    2
    I also don’t understand why it presses and not just moves it along the pipe. Where is the stop located and how does it close and open.
  3. Guest Sergey
    #4 Guest Sergey Guests December 6, 2021 06:52
    3
    How many revolutions is the engine on the press?
  4. Sergey
    #5 Sergey Guests 23 January 2023 14:24
    0
    Tell me, can I look at the drawings?
  5. Novel
    #6 Novel Guests March 19, 2023 21:44
    2
    At first, the sawdust just passes through and crumbles, each time getting denser and denser until the output is a briquette