Magnetic drill: purpose and features

Mobile tool for performing drilling, countersinking, reaming, milling operations. Capable of cutting threads. The main difference is the flat magnetic base (sole), through which fixation is carried out on the metal part being processed.

This method of fastening allows the processing process to be carried out in hard-to-reach “narrow” places. The tool is most in demand for construction and installation work, repair of large equipment, and ships.

Magnetic drilling machine (drill) Vector MS-36 – availability

A lightweight and inexpensive domestic model of a drill with a magnetic sole. The MFSC system has been introduced, which ensures reliable fixation of the machine to uneven metal surfaces. Built-in gravity control mechanism.

The overall height of the machine has been reduced for work in places with limited space. A design is provided for supplying cooling and lubricating fluid to the cutting zone. Reliable operation is ensured by special winding of the rotor and an overload protection mechanism.

Pros:

  • Compact size, light weight.
  • Easy to control, cooling of the processing area and drill.
  • Mobility, complete with case.

Minuses:

  • One speed without adjustment.

Which brand of impact drill should I buy?

Many companies today are engaged in the production of drills. Some have been known on the market for many decades, having gained trust all over the world. Others have only recently begun to produce similar equipment. How to choose among all this variety a manufacturer you can trust? Let’s list a few of the most famous companies - if you purchase their products, you definitely won’t regret it.

  1. Bosch is the undisputed leader among drills on the global market. German quality, combined with a rich assortment and ease of use, make the purchase of such a model a good choice for professionals and amateurs. However, you have to pay for quality - a convenient and reliable drill is not cheap.
  2. DeWALT is another serious player in the power tool market. All products can be recognized by their characteristic color scheme – yellow and black. High-quality components combined with high reliability make this product a good purchase for many years.
  3. Metabo is a brand whose owners primarily focus on simplicity and safety of operation. Needless to say, the instrument is in considerable demand - there are official retail outlets in more than a hundred countries around the world.
  4. Makita is the most famous and sought-after Japanese brand in our country. All products are easy to use and at the same time have a very affordable price. If you need an inexpensive impact drill, then you should choose this brand.
  5. Hitachi is also a Japanese company, almost as popular as Makita. Prices for drills are quite affordable, and the company places serious emphasis on constant research and continuous improvement of product quality.

So, the choice of companies is quite large. By purchasing a drill from any of these manufacturers, you will not regret your decision.

Machine for drilling metal on a magnetic base EXTRATOOL DX-35 – with increased speed

Drill on a magnetic base for working with a conventional twist drill or a core drill, type HSS. Increased power and increased speed contribute to high productivity and drilling depth.

The drill is fed into the processing zone by rotating the impeller with three radial handles. The degree of pressure is adjusted by the operator. Protection against overheating of the cutting tool and lubrication are carried out by supplying a special emulsion to the cutting zone.

Pros:

  • Easy to use, drill cooling.
  • High-speed, fairly powerful tool.
  • Case for transportation and storage.

Minuses:

  • Perhaps the price is too high.

The best impact drills for quality and reliability

Not all users are satisfied with budget drills. Some are interested in more powerful models that have additional components that increase the functionality of the tool. They will be a good purchase for professional installers, as well as some DIYers who like to work with their hands. It’s nice that at a relatively low cost they are distinguished by high power and excellent workmanship. Let's consider several of the most successful models from this price category.

Interskol DU-16/1000ER

Of course, this is the best drill in terms of price-quality ratio among those presented in the rating. It has a power of 1000 W, which makes it possible to make very large holes in any material - up to 16 mm in metal and up to 40 in wood. Overall, this is the most powerful impact drill in the ranking. The key type of cartridge used here is the most reliable and proven. The tool weighs 2.8 kg, relatively little for such a powerful model.

The maximum rotation speed reaches 2500 rpm - a good indicator even by today's standards. Two rotation modes make it possible to choose the one suitable for drilling holes of different diameters - very convenient when working with various materials. Reverse, spotlight and additional handle increase the level of comfort when working.

Advantages:

  • two operating modes;
  • high power;
  • comfortable handle;
  • ease of cartridge change;
  • possibility of smooth adjustment of speed;
  • reliable two-stage gearbox;
  • built-in spotlight.

Flaws:

  • not the best ergonomics.

Makita HP1640K

If we talk about convenience, then, perhaps, this model is one of the most successful of those included in the review. It has excellent ergonomics, like most Makita drills. It’s nice that the model weighs only 1.7 kg, making it a pleasure to work with. A 2-meter long power cord allows you to move freely around a small room without experiencing discomfort.

Drills can have two types of chucks - quick-release or key. The first allows you to change bits or drills faster. The second one requires a key to change, but it is highly reliable - the clamped drill will definitely not slip out or turn during operation.

The idle speed is 2800 rpm, and the number of strokes reaches 44800 per minute. The power of 680 W is enough to drill holes in wood up to 30, and in concrete up to 16 mm. The impact drill itself and all components fit easily into the case, which makes carrying and storage more comfortable.

Advantages:

  • affordable price;
  • high build quality;
  • excellent dust protection;
  • sophisticated reverse system;
  • endurance;
  • superbly adjusted ergonomics;
  • light weight.

BOSCH GSB 1600 RE (BZP)

Like all products of the German manufacturer, this impact drill will pleasantly surprise even the most demanding user in terms of reliability. Its power is quite high - 700 W. Therefore, you can freely drill holes up to 12 mm in metal, 16 in concrete and 30 in wood. The quick-release chuck type used makes it possible to instantly change drills without using a key. Its diameter varies from 1.5 to 13 mm, which makes it possible to install a wide variety of drills. The maximum rotation speed reaches 3000 rpm. Despite the high power, the weight of the unit is small - only 1.9 kg, which further increases comfort when working with it. This is also facilitated by the presence of an additional handle included in the kit. So, if you don’t know which impact drill to choose, then you definitely won’t regret this purchase.

Advantages:

  • light weight;
  • assembly of the highest quality;
  • convenient mode switch;
  • well-developed ergonomics;
  • quick change of bits and drills;
  • long network cable (4m).

Flaws:

  • comes in a cardboard box instead of a convenient case.

DeWALT DWD024

Easy to use and high quality drill. Its weight is only 1.82 kg, so there are guaranteed to be no problems when carrying and working. The tool's power of 750 W is enough to easily cope with any task - you can drill holes in wood with a diameter of up to 25 mm. The number of strokes per minute reaches 47,600 at a rotation speed of 2800 rpm. If such a need arises, an impact drill can be used in a drill press stand, which is very convenient.

Work is further simplified by electronic speed control. Together with the reverse, this makes any repair much more comfortable and simpler. The type of chuck is key here, so the user does not have to worry that the drill will accidentally fly out or become loose during operation - the fixation here is as reliable as possible. So, we can say with confidence that this is one of the best impact drills in the rating, which ideally combines quality and reliability.

Peculiarities:

  • long, elastic cord;
  • excellent ergonomics;
  • reliability in operation;
  • rubberized handle;
  • long warranty period (3 years)
  • light weight.

Magnetic drilling machine BDS MABasic 200 – simplicity and reliability

Simplicity of design, ease of use, moderately powerful and high-speed motor, along with low weight allow a magnetic drill to perform production operations in hard-to-reach places. It is possible to work with spiral or annular drills.

The machine is equipped with a standard chuck for reliable fixation of the cutting tool and quick change to another size. The attractive force of the electromagnet allows you to install the machine in any position.

Pros:

  • A good unit for the money, it fully performs its functions.
  • High-quality performance, price.
  • A combination of lightness and power.

Minuses:

  • Single speed, sometimes lacks power in cold weather.

Features of operation and selection of tools

The magnetic drill is equipped with powerful electric motors, the parameters of which range from 1 kW and above. If the drill jams while drilling a metal base, the consequences are as follows:

  • Failure of drills, the cost of which is quite high
  • Motor jamming, the cost of which is half the price of the tool
  • Injury by a person working with a tool

To avoid all these consequences, manufacturers equip products with a slipping clutch or sliding device. To use the tool, you must follow these steps:

  1. Before installing the tool on a metal base, you need to clean the contact area. This will ensure high-quality and reliable engagement.
  2. Determine where to drill the hole. In this case, it is not at all necessary to mark it with a core, since the tool does not move from its place when drilling
  3. After installing the tool on a metal or non-metallic base, you need to check the reliability of the connection
  4. After this, a nozzle of the required diameter is installed in the tool chuck, and the presence of coolant in the tank is checked, if the device has such a function.
  5. To activate the tool, you need to press a button, and then manually or automatically adjust the force of pressing the drill to the surface being processed. An additional electric motor in the design of the device allows you to automatically press the nozzle to the workpiece
  6. To reduce friction during the drilling process, special lubricants and coolants are used. These fluids reduce the load on the electric motor and also extend the life of the tool.

To remove the tool from the metal base, you need to turn off the power supply to the electromagnetic pad while holding the device.

This is interesting! If you need to drill a hole in non-magnetic materials, then for such cases there are special vacuum fastening plates.

If you plan to buy a magnetic drill, you should first decide for what purpose the tool is needed. One of the most important criteria for choosing a tool is its weight. The higher the weight of the device, the higher the cost. The cost is also affected by auxiliary functions such as water cooling, different speed modes, and convenient power buttons.

The instrument discussed in the material belongs to the professional category. Such instruments are produced by different manufacturers, which are: Euroboor, Metabo, Rotabroach, MBR. When choosing, be sure to make sure that the tool is equipped with convenient power buttons and a handle for transportation.

Magnetic electric drilling machine ELEMENT 30 “Rotabroach” – a workhorse

Mobile, moderately lightweight tool with a magnetic base. Equipped with a high-power electric motor. An increased rotation speed and an improved gearbox have increased the reliability and service life of the machine. The force on the magnetic sole reaches 800 kgf.

Power supply from a stationary power supply voltage of 220V. Compact dimensions are maintained, allowing you to reach the most inaccessible places. An effective system has been used - Cutsmart Technology - overload protection during peak loads.

Pros:

  • Build quality, reliability.
  • Good for auto repair shop operations.
  • Reliable, easy to operate, adjustable pressure on the drill.

Minuses:

  • The drilling diameter is too small.

BISON ZSS-350

Our TOP drilling machine ZUBR ZSS-350 continues.

It has 5 operating speeds and supports the installation of drills with a diameter of up to 13 mm, designed for all types of materials.

The main feature of the machine is its rotary table, which can be moved vertically and horizontally, as well as change its angle. This allows you to process workpieces of various shapes and at the desired angle. In addition, the machine comes with a vice that is installed on the table to secure workpieces.

Magnetic drilling machine ECO.30 – the lightest in its class

The lightest magnetic drill among analogues. It has small overall dimensions, which allows processing in “narrow” places. This is facilitated by the design of the gearbox. The magnetic attraction force reaches 1.2 tons.

The powerful motor allows you to increase the diameter of the holes produced by a classic twist drill. The cutting zone and cutting tool are lubricated and cooled by coolant. Durable and comfortable handles provide the necessary pressing force and drill feed speed.

Pros:

  • An unexpectedly light and, at the same time, powerful magnetic drill.
  • Great force of attraction to the treated base.
  • Power in a compact size.

Minuses:

  • Consumers did not identify any negative characteristics.

The best hammerless drills

Not all users need an impact drill that can drill through brick, stone and concrete. But at the same time, high accuracy of work is important. It is provided precisely by unstressed instruments. In addition, they do not have a hammer mechanism, so the weight is significantly reduced, which means the level of comfort when working with a drill increases. Therefore, as part of the review, we will consider several such models.

Metabo BE 650 (BZP)

An elegant and convenient hammerless drill that will always help with repairs. It weighs 1.8 kg, which makes any repair more comfortable and simpler. However, this does not prevent it from having a power of 650 W. Perfect for drilling metal and wood, leaving holes up to 13 and 30 mm respectively. The quick-release chuck makes it possible to instantly change drills, which can be very useful for any repair.

Advantages:

  • light weight;
  • long-term operation without heating;
  • high-quality assembly;
  • handle with elastic coating;
  • quick-release chuck;
  • long network cable.

Flaws:

  • Not all models have drills that are securely fixed.

DIOLD MES-5-03

Quite powerful, despite its low weight, hammerless drill. Its power is 800 W, which is an excellent indicator. At the same time, the tool weighs only 1.9 kg, making it as easy as possible to carry and work with. At idle, the maximum speed is 1200 rpm. The key type of chuck ensures that the drill will not fly out or become loose during operation. Many users appreciate the fact that the drill is equipped not only with an additional handle and drill depth limiter, but also with spare brushes. The presence of reverse makes it convenient to use in screwdriver mode.

Advantages:

  • high-quality assembly;
  • metal gears of the gearbox;
  • high-quality additional handle;
  • good equipment.

Flaws:

  • relatively high cost.

AEG BE 750 R

If you want a drill with a long cord so you don't have to use an extension cord, take a look at this one. The network cable here is four meters long, which makes it possible to move freely around the spacious room. In addition, the drill is quite light - 1.8 kg with a power of 750 W. The quick-release chuck will appeal to users who frequently change drills or bits during work. The kit includes a depth stop and an additional handle, as well as a bag in which the tool can be easily stored and carried.

Pros:

  • very long cord;
  • high power with relative compactness;
  • quality of materials and workmanship;
  • branded double-coupling chuck;
  • nice appearance.

Minuses:

  • The cartridge may cause problems when installing in a rack.

Makita DP4010

High-quality hammerless drill for true professionals. It boasts a power of 720 W and good equipment. Develops speed up to 2900 rpm at idle. The drill has two speed modes, which makes it possible to choose the one suitable for any specific job. Suitable for drilling metal (up to 13 mm) and wood (up to 40 mm). It has a reverse function and electronic rotation speed control, which makes any work as comfortable and simple as possible. True, you have to pay for all these advantages - the tool weighs 2.3 kg, which can cause difficulties during transportation and rapid fatigue during work.

Advantages:

  • two speed modes;
  • high power;
  • the presence of a release clutch;
  • presence of double protective insulation;
  • smooth ride;
  • durable drill chuck;
  • good build.

Flaws:

  • serious weight.

Magnetic drilling machine LENZ Steyr-35 – high precision processing

Highly efficient, reliable machine on a magnetic base. It is compact in size and light in weight.

High precision fitting of drill components and parts made it possible to achieve processing quality of up to 10th grade. The force of attraction of the base reaches one ton. The drive is adapted to high overloads during operation.

Pros:

  • High-quality manufacturing, reliability, endurance.
  • Productivity, the ability to make very precise holes with small errors.
  • Large power reserve.

Minuses:

  • No comments.

Scope of application


Fixed magnetic drill
Magnetic drills can be used in difficult conditions associated with natural gas production, on oil platforms, in the chemical industry - work at these facilities is associated with an increased level of safety requirements. The pneumatic drive of the magnetic drilling machine reduces to zero the likelihood of a spark causing a fire or explosion.

The device will allow you to quickly and efficiently drill a hole in places where it is difficult to get physically close; a magnetic drill saves working time and ensures high work efficiency, increasing the level of productivity.

Examples of using electromagnets

Electromagnetic cranes. Factories use electromagnetic cranes that can carry huge loads without securing them. Electromagnets are used here. As long as there is current in the electromagnet winding, not a single iron body will fall from it. But if the current in the winding is interrupted for some reason, an accident is inevitable. And such cases have happened.

To avoid the recurrence of such accidents, and also in order to save electrical energy consumption, special devices began to be installed with electromagnets.

After the objects being carried are lifted by the magnet, strong steel supports are lowered and tightly closed on the side, which then themselves support the load, and the current is interrupted during transportation.

In seaports for reloading scrap metal, probably the most powerful round lifting electromagnets are used. Their weight reaches 10 tons, load capacity up to 64 tons, and breaking force up to 128 tons.

Depending on their purpose, electromagnets can weigh from fractions of a gram to hundreds of tons and consume electrical power - from fractions of a watt to tens of megawatts.

Electric bell

Figure 2.12 – Circuit diagram of the bell

The school bell and apartment bell have a similar electrical circuit.

After connecting contacts 1 and 2 in accordance with Figure 2.12, an electric current begins to flow through a closed circuit to the output of the current source (part of the armature I acts as a conductor in this electrical circuit, it is through the armature that the electric current flows and only the initial position of the armature creates a closed electrical circuit) . A magnetic field appears around the electromagnet E and attracts the iron armature E. The electrical circuit opens and the magnetic field disappears. The anchor returns to its original position, hitting its other end against the metal cup (the sound of the impact is heard). When the armature returns to its original position, the circuit closes again, and electric current begins to flow through it again. Again, a magnetic field forms around the electromagnet, and everything starts all over again.

Automatic loader with magnetic bucket. A typical scrap metal forklift is equipped with an electromagnet. Iron bodies scattered on the ground themselves are attracted inside the bucket, making it easier to load and carry the load.

Blood purification using an electromagnet. A very promising method of blood purification for serious blood infections that cannot be treated with medication has been developed by doctors. A saline solution that is harmless to the body has been created, containing tiny iron balls coated with a reagent. The reagent is capable of “sticking” to a certain type of harmful microbes that appear in the human blood during illness. The solution is injected into the human body, and then the blood with the solution is passed through an electromagnetic installation, which “catches” and removes iron particles with bacteria adhering to them from the blood.

Zitrek DP-90

Next in our TOP is the inexpensive Zitrek DP-90 drilling machine, which will be an excellent purchase for your home or garage.

The compact dimensions of the machine allow it to be installed on a table. And thanks to the 550 W motor, it does an excellent job of drilling holes in hard polymer materials and wood, as well as in various metal workpieces.

Among the design features of the machine, it is worth noting the possibility of raising, lowering and tilting the work table, which allows you to adjust the workpiece to the spindle depending on its dimensions. In addition, there are grooves in the base of the machine with which you can attach a vice to it in order to process larger workpieces.

The machine chuck is covered with a transparent screen, which prevents chips from flying out during operation. It is also worth noting that the Zitrek DP-90 has an emergency shutdown button that will quickly stop the spindle from rotating.

Owners speak generally positively about the operation of this machine. noting excellent value for money. So, if you are looking for an inexpensive drilling machine, then you should pay attention to this model.

BISON ZSS-450

Next in our TOP is the ZUBR ZSS-450 drilling machine.

It is equipped with a 450 W asynchronous motor with copper winding and a huge margin of wear resistance and has 12 speeds for working with workpieces made of any materials.

Among other features of the ZUBR ZSS-450, it is worth noting the transparent casing to protect the operator from chips when drilling. It also has an electromagnetic switch that will stop operation in case of an emergency.

Thanks to its compact size, this machine can easily fit on any table. And its cast iron base will provide it with a stable position while working.

Owners respond mostly positively to this machine, noting that it would be an excellent purchase for personal use at home or in the garage.

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