Welding a thick-walled stamped disk R13 or R14 requires preliminary removal of factory paint and rubber residues using a grinding machine, since any contamination will lead to the formation of pores in the seam and a specific burning smell upon first ignition. It is the quality of preparation metal surface determines the durability of the structure, because car wheels are made of steel that is resistant to high temperatures, but sensitive to corrosion when in contact with moisture and ash. Many gardeners underestimate the importance of drilling ventilation holes in the bottom of the bowl, which ultimately leads to poor draft and the inability to light the coals without using additional chemicals or a hair dryer.
The main advantage of such a homemade product is the use of a ready-made geometric shape, which is ideal for placing standard-sized skewers and grates. Stamped disc has the required wall thickness, which does not burn out for years, unlike thin sheet metal, often used in cheap factory barbecues. The implementation of this idea allows not only to recycle old auto junk, but also to obtain a functional decorative element, which, if properly processed and painted with heat-resistant enamels, will become the center of the barbecue area.
To begin work, it is necessary to ensure the integrity of the metal structure, especially if the disk has previously been subjected to severe deformation or had cracks after hitting a curb. Thermal load during operation, the grill can aggravate hidden defects, so visual inspection and tapping with a hammer are a mandatory diagnostic step before starting the creative process. If you plan to use the structure all year round, you should immediately provide removable legs or a wheelbase for easy movement around the site.
Selection and preparation of starting material
The best raw materials for creating a fryer are stamped steel disks, which were massively installed on domestic cars and budget foreign cars of past years. Cast aluminum wheels It is strictly not recommended to use them, as when heated they can lose strength, melt or even burst, which creates the danger of scattering hot coals. Disks with a diameter of 13 or 14 inches are considered the best option, since their depth allows you to create sufficient volume for coals, and their diameter allows for convenient installation of standard skewers.
The preparation process begins with thoroughly cleaning the surface from old paint, dirt and rubber residues that may have remained after dismantling the tire. To do this, it is most convenient to use an angle grinder with a flap disc or a metal brush, which will allow you to reach clean metal in all bends and holes. Scale and loose rust must also be removed to ensure high-quality adhesion of the weld and uniform distribution of the heat-resistant coating in the future.
⚠️ Attention: When cleaning the disc, be sure to use a respirator and safety glasses, as dust from old paint and rust is toxic and can cause respiratory irritation.
If there are deep dents on the disk, they can be smoothed out with a hammer while the metal is cold, but for a barbecue the ideal geometry is not critical. The main thing is that the bottom of the bowl is relatively flat to evenly distribute the fuel layer. After mechanical cleaning, it is recommended to degrease the surface with solvent or acetone to remove oil stains, which are often present on parts of the car's chassis.
Necessary tools and consumables
To implement the project, you will need a standard set of tools, which is usually available in the garage of any car owner or summer resident. The key element is a welding machine, preferably a semi-automatic one, since it allows you to weld thin metal without the risk of burning it, which is important for some parts of the structure. If welding is not available, bolted connections can be used, but then the structure will be less monolithic and will require regular checking of the fasteners for loosening from thermal expansions.
- 🛠️ Angle grinder (grinder) with a set of discs for cutting and cleaning metal.
- 🔥 Welding machine (inverter or semi-automatic) and consumables (electrodes or wire).
- 📏 Tape measure, square and metal marker for precise marking of holes.
- 🔨 Hammer, chisel and pliers for auxiliary work.
- 🎨 Heat-resistant paint (coxol enamel) and brushes or spray for finishing.
As additional materials, you may need corners or a profile pipe to make legs and carrying handles. Profile pipe 20x20 mm or 40x20 mm has sufficient rigidity and is easily welded to the rounded surface of the disk. For a grate, if you plan to make a removable bottom, you will need fittings with a diameter of 8-10 mm that will withstand the weight of the coals and will not deform from the heat.
Use fittings with a ribbed surface for the grates - this will prevent the coal layer from slipping and improve air circulation from below.
Fryer manufacturing technology
The main stage of work consists of cutting technological holes to provide traction and installation of fasteners. At the bottom of the disk, where the hub is usually located, it is necessary to cut a round hole with a diameter of 100-120 mm, which will serve as a blower. Through this air duct oxygen necessary for combustion is supplied, and through it it is possible to remove cooled ash after operation.
Along the circumference of the side, at the level of the bottom of the bowl, a series of holes with a diameter of 10-15 mm should be drilled or cut at a distance of 3-5 cm from each other. These holes play a critical role in creating proper aerodynamics inside the grill, allowing air to circulate evenly on all sides. If you ignore this step, the coals will only smolder in the center and remain raw at the edges, which will significantly increase the cooking time.
| Parameter | Recommended value | Purpose |
|---|---|---|
| Blower diameter | 100-120 mm | Air supply, ash removal |
| Side hole diameter | 10-15 mm | Oxygen circulation (draft) |
| Side hole pitch | 30-50 mm | Uniformity of heating |
| Disc metal thickness | 2.5-3.5 mm | Heat resistance and durability |
Next, the legs are welded to the structure, the height of which should be 70-90 cm for comfortable standing work. You can use ready-made metal tripods or weld a frame from a profile pipe, attaching it to the inside or outside of the disk. For mobility, small wheels from garden equipment or old carts are often welded to the base of the legs, which turns the grill into an easily movable one. mobile installation.
☑️ Checklist before the first kindling
Improved functionality and ergonomics
To turn a simple bowl into a full-fledged culinary tool, it is worth providing additional elements that simplify the process of preparing meat and vegetables. One of these elements is the slots on the top side, which serve as clamps for the skewers, preventing them from turning under the weight of the food. These notches can be done using a grinder, observing an equal step corresponding to the standard length of the skewers.
To install grill grates, you can weld small metal shelves or stops inside the disk at a certain height. This will allow you to use not only skewers, but also BBQ nets, expanding the gastronomic capabilities of the device. Another convenient solution would be to make a removable lid from a sheet of metal or part of another disk, which will allow you to use the roaster as a smokehouse or maintain heat in windy weather.
⚠️ Attention: Do not use zinc-coated materials (galvanized) for the lid, as when heated they emit toxic fumes that are hazardous to health.
Carrying handles welded on the sides should be made of a material with low thermal conductivity or have wooden insulation to avoid burns when moving a hot structure. It is better to make metal handles long and move them away from the heating zone, or equip them with silicone pads. An integrated approach to ergonomics makes using the barbecue a safe and enjoyable activity for the whole family.
How to make a smokehouse
To create a smokehouse, cover the grill with a lid, put wood chips (alder, apple) inside, and place the food on the grill. Close the blower damper to reduce the flow of oxygen and increase smoke.
Corrosion protection and finishing
After completing the welding work and grinding the seams, it is necessary to protect the metal from rapid rusting, since the combination of moisture, ash and temperature changes is an aggressive environment. Regular organic-based paints will burn instantly the first time you use them, so special paints are required to coat exterior surfaces. heat-resistant enamel, withstands heating up to 600-800 degrees Celsius. Such compositions are often sold in aerosol cans and contain the markings “for stoves” or “for barbecues” in the name.
Before painting, the surface should be heated with a torch or blowtorch to remove residual oils and completely degrease the metal. The paint is applied in 2-3 thin layers with intermediate drying, following the manufacturer's instructions for drying time. For internal surfaces that are in direct contact with fire, paint does not need to be applied - a natural protective layer of soot forms there, which preserves the metal.
An alternative and environmentally friendly method of protection is bluing or calcination using vegetable oil. In this method, the disc is heated until blue and rubbed with oil, which polymerizes to create a durable black film. This one anti-corrosion layer is not afraid of high temperatures and is completely safe for contact with food, unlike some cheap paints.
The main rule of durability: high-quality seams and heat-resistant coating of the outer walls will extend the life of the barbecue by 3-4 times.
Operation and safety precautions
A ready-made barbecue made from a car wheel is a massive and stable device, but it requires compliance with certain fire safety rules when installed on the site. The structure should be installed at a distance of at least 1.5-2 meters from wooden buildings, fences made of flammable materials and hanging tree branches. It is recommended to have a non-combustible base under the barbecue, for example, tiles, concrete or a sheet of metal, so that falling sparks do not cause the dry grass to ignite.
When lighting wood or charcoal, it is not recommended to use gasoline or other flammable liquids as this may cause a flashover and burns. It is better to use special lighter fluids applied to cold coals, or proven traditional methods using paper and dry wood chips. Regular cleaning of ash prevents the accumulation of moisture, which, in combination with acids from the ash, accelerates metal corrosion from the inside.
It is better to store the grill under a canopy or in a dry room, covering it with a waterproof cover to minimize contact with precipitation. Even with a high-quality coating, constant contact with water shortens the service life of the product. Following these simple rules will allow you to enjoy aromatic barbecue at your dacha for many seasons without the need to repair or replace the roaster.
Is it possible to use a cast aluminum disc for a barbecue?
Strongly not recommended. Aluminum has a lower melting point and can become deformed or lose strength when subjected to intense heating. In addition, alloys used in casting may contain impurities that release harmful substances when heated.
What thickness of metal disk is required?
The thickness of the metal directly affects durability. The disc must be at least 2.5 mm thick. Thin metal will quickly burn out and become deformed. Stamped discs are usually thick enough for this purpose.
Do I need to make holes in the bottom of the grill?
Yes, holes in the lower part (air vent) and around the perimeter are necessary to create traction. Without access to oxygen from below, the coals will smolder, smoke and burn poorly, which will ruin the taste of the dish.
How to paint the inside of the grill?
You cannot paint the inside of the grill with ordinary paints. When using for the first time, the inside must be calcined. Subsequently, a layer of soot forms there, which protects the metal from rust. It is acceptable to use edible oils for bluing.