At all times, tools and equipment that combined different functionalities enjoyed quite high popularity. A similar trend applies to equipment that is customary to use in your suburban area. In the market for relevant products, you can find mini-tractors and motor blocks. Each model has different attachments. All this allows you to perform utility and agricultural work. Attachment manufacturers miss one important operation that is required from time to time in the household process. These include all kinds of earthworks. It is quite difficult to find additional attachments for tractors and walk-behind tractors on the market that would help in the implementation of earthworks. Of course, you can buy a mini excavator, but its cost may exceed $ 7,000. Produce mini-excavators with his hands just enough for it to be necessary only to stock up on a certain set of tools and materials. For the production of said equipment on the basis of the internal combustion engine or motor cultivator must be reserved metalworking equipment, welding and locksmith tools.
Technology of work
If you need a trench, for example, for the foundation, then you can do with a shovel, however, carrying out such work involves a lot of time, but using an excavator you can complete such manipulations in just 30 minutes. In order to make a mini-excavator with your own hands, you will need to carry out three stages, the first of which is preparation, the second stage is manufacturing, and the final stage will include the need for assembly.
Preparatory work
Initially, it will be necessary to decide on the basis of what and by what technology a makeshift excavator will be manufactured. If there is a mini-tractor or a walk-behind, it is best to make the production to mount, so you have to follow a technique that is used to fix the snow-clearing equipment. If there is an engine from an old car available, then a mini-excavator can be made with your own hands by creating a tractor chassis adapted for earthworks.
Getting started
The channel will be based on the channel, which has a size of 8 or 10. The elements will be connected together by welding. A beam from a car trailer or a used car is fixed to this system. In this case the workpiece will need to deprive of springs. Alternatively performs improvised axis. When a mini-excavator is made with its own hands, the axle is mounted on wheels. On this we can assume that the self-propelled chassis is ready. The entire volume of the channel, taking into account the manipulator and brackets, will require 12 meters of material.
Methodology
If you will make a mini-excavator with your own hands, you can easily draw up drawings of this equipment yourself or borrow from an article. The manipulator is recommended to be made two-knee, this will allow you to get a simpler design. Production is best done from welded channels that connect together. As a result, you should get a rectangular profile, to which brackets made of metal are fixed. Their thickness should be 10 millimeters. Among the remaining components of the structure, brackets, hydraulic cylinders, fingers and movement mechanisms can be distinguished. During manufacturing, you will need to use milling, drilling and turning tools. You can make some parts, for example, a bucket, yourself or purchase it in finished form.
Hydraulic equipment for the excavator
If you decide to make a homemade mini-excavator with your own hands, it is important to think about hydraulic equipment, in this matter the foreman will have a fairly wide choice. The heart of the hydraulic system is an oil pump of the NSh-10 type. Varieties NSH-32, as well as NSh-150 are also popular. If we are talking about the latest model, then it is recommended to use it exclusively in a new form. The cylinders for the operation of the bucket and the manipulator can be of former use, hydraulic cylinders for raising the cab, which are borrowed from KAMAZ or MAZ, are excellent. If you make homemade mini excavators, then you can purchase new cylinders, guided by the dimensions of 63 x 40 x 500. For a unit of such goods you will have to pay about $ 100. For control, it is preferable to use a valve of the RGS 253-x brand or MPC 70.4. In data elements should be three or four sections. If you can’t find these add-ons that were already in use, you will need to prepare $ 150 for their purchase.
Installation work
Making a mini excavator with your own hands is quite simple. At the next stage, you can start assembling the structure on the chassis. Through a rubber coupling or a connecting shaft, you need to connect the power take-off shaft of the walk-behind tractor, as well as the hydraulic oil pump. All hydraulic equipment must be connected to each other via the rubber sleeves imposing pressure. At the final stage of finished products should be painted to prevent corrosion.
Additional parts manufacturing
If you decide to make a trailed mini-excavator with your own hands, then individual parts of the boom can be performed using square tubes with a side of 80 millimeters. It is possible for this purpose to use sheet metal, which must have a thickness in the range of 6 to 8 millimeters. First, blanks are cut out of it, which are bent, and then welded together. If you plan to make a bucket yourself, then you need to use metal of the aforementioned thickness for it. In order to strengthen the structure, a belt is to be welded on it in the upper part. Among other things, longitudinal ribs should be strengthened. In order to ensure the effective operation of the bucket, it must be equipped with fangs, which are made of high-quality steel. As a second option, fingers borrowed from tractor tracks are often used.