Good afternoon everyone. I have a diamond jack, I lost the handle from it, it was made in the form of a hook. Raising a car with such a jack without a handle is not very convenient. In two or three stores I asked about a pen, they didn’t have one, so it was decided to come up with something else. Therefore, it was decided to modernize this jack, so to speak. Moreover, it is necessary to install summer wheels, winter has passed.
So, we take a grinder and carefully saw off this eye, where we had to put the hook-handle in order for the jack to spin.
So I sawed off the ear. 
Now we need to find, or rather select, a head that we will weld instead of our eye. So I picked up such a head for myself; you don’t need to do anything additional with it, you just need to weld it well. 
Now let's take welding machine and weld the head. 
It turns out like this.
After welding, I ground this place a little, but did not grind it too much so that a little iron remained for hardness. 
With such a head it is easy to turn the jack and lift the car, it is especially convenient to turn it with a ratchet. 
Yesterday I tried the jack in action, changed all four wheels, put on summer tires, and working with the jack became simply convenient and easy.
Well, that seems to be all, if this article helps anyone, I will be very glad. The idea came from Alexey from Tambov.
Motorists, and especially those who like to spend a couple of free hours in the garage, are people who have genetic level a talent is developed to obtain practical benefits from available things. They don’t have to be persuaded to do new experiments or be tested new way fix, assemble, or remove something without owning a specialized tool.
Why invent something new when in three or four hours and practically for free you can assemble a jack with your own hands– a useful, practical and indispensable tool for every car owner.
The photo shows types of jacks and methods of their use
A car jack is a universal device that can support structures weighing up to two tons, and sometimes more, for days. It's like a third hand for a car mechanic: super strong, durable and one hundred percent effective.
The simplicity of the design and the abundance of varieties of functional tools allows you to make an exact analogue of any branded jack with your own hands.
How to make a screw jack
The classic and most common diamond-shaped jack is the screw jack. Make one like this DIY jack- a matter of two hours, especially if you have one and a half to two meters of channel and basic set fasteners. The compact tool will easily fit in the trunk, and in any emergency and unforeseen situation you will praise yourself for your foresight and intelligence.
Many people know how to assemble a jack from a channel, but have never tried it. There are only five elements, and the tool is already 90% ready:
On preparatory stage Drill holes at the joints of the elements, and then begin assembly. Connect the shoulders, secure them together and on the bases. Insert a threaded screw into the shaft and check homemade jack on lifting force.
The photo shows a diagram of the screw jack assembly
As you can see, a simple method that does not require welding and professional equipment(except for an electric drill), takes only an hour or two of time, and does not damage the budget.
How to make a jack from an air spring
It’s a completely different matter when a jack is needed for more serious work than, for example, changing a wheel on the road:
In cases where classic screw models cannot cope, homemade hydraulic jacks made from air springs come to the rescue: they are relevant not only for cars, but also for other heavy-lifting loads - safes, workbenches, large-sized furniture.
To build a homemade air jack, you will need a minimum of materials:
Details about how to make a jack with your own hands from an air spring, watch the video https://www.youtube.com/watch?v=vg8z68ObTEA.
In the same way, you can make a pit “lift” (for an inspection ditch), or rolling jack: The type of air bag does not matter.
In the photo - pneumatic (rolling) jacks
How to make a rack and pinion jack
He always comes to the rescue when other models are powerless, and human imagination and physical capabilities are exhausted. A rack and pinion jack will help if you need:
There are no secrets in how to make a rack model; it only takes three steps and about an hour of time:
If desired, it is possible to additionally make fasteners for such a device, allowing you to lift the car by the wheel rims.
Simple manipulations and a little spatial imagination will allow you to save money and assemble the device with your own hands, without which not a single replacement of wheels or other parts of the suspension is complete. And when the right approach and proper use of resources, a homemade jack will help you out in many situational troubles.
The problem of lifting large loads has been facing humanity for quite some time. IN last years To solve this problem, jacks are increasingly being used. Stands apart in this series hydraulic jack. He is capable of lifting really heavy loads with a minimum of effort. Hydraulics, since the advent of science, has come to the aid of man. There are situations when a lift of this kind is simply necessary, but there is no way to purchase it. How to make a homemade jack?
Of course, before you start working, you definitely need to learn more about the design of a hydraulic jack. In fact, it is not as complicated as it might seem at first glance. The main elements are a housing, a pump, a plunger, and a screw with a lifting heel. A hydraulic jack is most often made of hardened steel. In this case, the working fluid is a special oil with high viscosity. Regular motor oil will not work in this situation.
It is worth taking this into account when developing the device. Typically, the body is the main part of a hydraulic jack. It serves not only as a reservoir for the working fluid, but also as a real cylinder for the piston. The device of this design implies the presence safety valves that provide uninterrupted operation. It is equipped with a hand or foot pump.
The oil is drained using a special handle, which is part of the mechanism. The lifting mechanism and a special retractable hydraulic cylinder are capable of raising the working platform. Enough is being created high pressure, which allows you to lift loads of various masses. The body of such a device can be either short or elongated. The second option is most often used when carrying out repair work heavy equipment. For example, it could be a bus or a heavy vehicle.
The main function of a jack is to lift a car wheel in order to replace it or a tire. The jack is used for self-replacement car wheels in the absence of repair services. Also, sometimes you have to crawl under the bottom of the car in order to carry out repair work. The jack will come in handy in this case too.
Outside of the automotive field, jacks are often used to install structures at the required level during construction and repair work, when lifting loads in warehouses and spare parts in workshops.
You can read about how the crosspiece is replaced in detailed material from our author.
You may also be interested in information on how to choose and securely fasten with your own hands.
The important characteristics of the jack are listed below.
There are jacks various types by drive type.
You will find detailed information on how to make it yourself in the material from our specialist.
Our expert will tell you in detail how to make a working one with your own hands step by step.
You can read information about making it yourself in the article by our specialist.
According to the operating principle, jacks are divided into screw, rack and pinion, pneumatic and hydraulic. Jacks can be stationary, mobile or portable. Homemade devices Most often they are portable, as they are small in size. Stationary jacks are intended for large loads and are rarely of interest to car owners.
Hydraulic jacks should be given Special attention, since they have the highest load capacity, which is important when working with trucks or SUVs. It is possible to manufacture hydraulic jacks with different sizes and characteristics. Modern mechanisms are used not only in service stations and auto repair shops, but even in the oil refining industry. The device can operate in both horizontal and vertical planes.
Basic load-bearing elements devices: housing, working fluid (most often its role is oil) and a retractable piston. The body can be short or elongated. At the same time, it is made of hardened steel so that the structure can withstand the required level of loads. The housing serves as a guide cylinder for the piston and a reservoir for the working fluid.
The lifting device and the retractable cylinder are located in the housing openings. The descent is carried out by turning the T-shaped handle. The equipment is equipped with polyamide wheels, ensuring maneuverability. The extended body is designed for heavy-duty vehicles.
Hydraulic lifting mechanisms are the most common and convenient, so let's start with them. The manufacture of a hydraulic jack is as follows. You will need a welding machine, a hacksaw, an angle saw Grinder with disc for metal, steel profile for structure.
Hydraulic jacks come in standard, trolley, bottle, hybrid, toe and diamond jacks. The manufacturing process of a conventional hydraulic jack is described in detail below. There are many drawings on the Internet from which these mechanisms are assembled.
When manufacturing a rack jack, it is important to take into account that the stability of this structure is affected by the strength of fixation and the quality of the supporting platform. It is important to assemble the mechanism in such a way that the product does not move out during operation. The force applied when lifting loads depends on the maximum possible mass.
The process of making a rack jack is quite simple. You need to take 2 rack pipes and a welding machine. The pipes must be welded in such a way that they resemble truncated pyramid. Next, a steel sheet 5 millimeters thick is taken. The upper and lower bases of the mechanism are made. A hole is made in the upper part, into which a nut must subsequently be welded. A hole is also made in the lower base. Next, a mechanical rod is inserted there for rotation.
To make the mechanism, it is better to use parts made of hardened steel. If you additionally attach a metal cable, the rack and pinion jack can, if necessary, replace the winch. The average carrying capacity of such a product will be from 5 to 20 tons.
A rolling jack is easy to make, using as a basis a bottle unit with a pick-up height of about 23 centimeters and a channel of 10 and 12 millimeters. The bottle jack is the simplest mechanism of this kind. Despite this, it is used for repairing freight vehicles. The operating principle of the jack is based on the use of several working rods. The mechanism is based on a piston.
Lifting occurs using a lever, which is driven by a hydraulic cylinder. A rack is created from a 12-millimeter channel, and a lifting lever and base are made from a ten-millimeter channel. Rollers from a regular one are installed in front washing machine. The cup is taken from a car bumper, and the braces are created from a 20 mm bar.
As a result, the operating principle of a rolling jack is similar to a bottle jack, but the axis of the working cylinder in this mechanism is located in the horizontal axis. The piston is not directly combined with the pickup. Name "roll-up" this mechanism received due to the fact that in appearance it resembles a cart on wheels rolling on a flat surface.
When the lever is raised, the jack moves under the load (car). The mechanism is driven by touching the lever and lowered by turning the valve screw. If the car needs to be lowered, the tubular handle is mounted on the valve screw. The partition then fits into its groove. The screw rotates with the handle, relieving pressure in the working cylinder.
A screw jack consists of: a base, a lower and an upper arm, a stop and a screw mechanism. Takes metal base(assortment), having a cross-sectional area of 2.63 cm square. 4 through holes are drilled, with a diameter similar to the diameter of the pin. It is advisable to attach the base to a wider removable platform. Next, the upper and lower arms are made from a metal base.
The shaft is made of metal rod. The diameter of the rod is 12 millimeters. There should be a thread at one end, and a retainer at the other, attached to the shaft with a pin through a through hole. An axis is made around which the shoulders rotate. The axles on both sides are pins with flat cylindrical heads, secured with cotter pins. A through hole with a diameter of 10 millimeters is drilled in one of the stops, and in the second internal thread. The clamp acts as a fastening of the shaft on the rotation side and transmits torque to the shaft.
The screw jack can be manufactured in three different variations: with trapezoidal thread, diamond-shaped, lever-screw.
More information about positive and negative aspects you can read in the article by our author.
It is relatively easy to make a jack from an air spring with your own hands, given that this type of unit is a very interesting device. Pneumatic jacks are indispensable when it comes to precise installation. When working on uneven or loose surfaces such lifting mechanism irreplaceable. A rubber-cord flat shell made of reinforced fabric is the basis of the device. The shell expands when compressed air is supplied. The device is also quite complex in terms of design.
So, to make the mechanism you will need the following materials: old pillow from a truck, a bolt, a ball that can act as a bearing, a wheel bolt from a VAZ, a chamber fitting and a drill.
You need to screw a bolt into the hole of the pillow. Before this, you need to drill a hole in the bolt that will be occupied by the fitting. It is also necessary to make a hole in the VAZ wheel bolt. It will act as a valve. The elements are connected. A ball is placed in the existing outlet, blocking the passage of air during operation. A pump is required to use the device. The jack will be located under the bottom of the car. You will also need wooden block, resting against the car.
It’s easy to make a homemade jack for a car with your own hands if we're talking about about mechanical devices that rely on the physical efforts of users, compressed air and working fluid. It is somewhat more difficult to make an electric jack with your own hands.
Electric lifting mechanisms are the result of the synthesis of mechanical moving components and an electric drive. Such a jack can be powered from the vehicle's electrical network. You can connect the device via the cigarette lighter.
The starting materials for manufacturing may be different. Motors for window lifters are suitable (as an example, you can take a motor from the “ten”). The drive and cables must be removed, leaving only the motor and gearbox. You will need a head whose tetrahedral side is equipped with edges of 7 millimeters. The base can be a regular screw diamond jack.
Our task is to create electric drive so as not to exert effort when using it. The fastenings are made of steel strips. The fasteners must be trimmed and given the desired configuration, and then attached to the gearbox. The mount and the head on the gearbox are welded to the device. The device can be controlled using a button from the window lifter mechanism.
Screw jacks with trapezoidal threads maintain a simple design, low weight and ease of operation with a high load capacity. The rhombic design of such mechanisms is distinguished by the presence of a long drive handle, which reduces the required effort to lift the load. The design is also lightweight and has good stability.
