angle grinder 115 mm with speed control

angle grinder with speed control and smooth start.

Often buyers want to choose an inexpensive angle grinder with these custom features like the Makita GA5040C.
By pressing the start key, the user feels a sharp jerk associated with a rapid set of speed by the rig. over, the heavier it is, for example, a grinding grinding disc, the more tangible the tool is trying to escape from the hands.
The user experiences the inconvenience; from a peak load exceeding the nominal 3-5 times, the gears of the reducer suffer; voltage sags in the network. It can knock out electrical machines and plugs, “swell” and stall a low-power gas generator if the angle grinder is powered from it without a soft start.

Advantages of Small Angle Grinder.

Light weight.
A 125 mm angle grinder, such as the Soyuz UShS-90122 weighing 1.45 kg, can easily cut sheet metal, for example, when bodywork with a car or tile when decorating premises. Less hand fatigue and the Mini Angle Grinder is easier to control than the medium 150, 180 mm and larger 230 mm models. It is easier for her to crawl up to cut from different sides to a fixed workpiece with inconvenient access.

Safer work.
When deep cutting thick-walled parts, during the deviation of the plane of the disk from the vertical, it is jammed with a simultaneous stop of the tool and throwing it aside. Since the 115 and 125 mm small angle grinders have a low immersion depth of the tooling in the material and their own weight, it is easier for the worker to hold the angle grinder in the event of jerks.

Small angle grinder 125mm Sturm AG90121P

Most powerful angle grinder.

The thinner the disc, the faster the workpiece is divided into parts and less motor power is required. The lightest but lightest angle grinder is often chosen for cutting. The power of small angle grinders can be 720 watts, like Titan BSUM7125, and large 2000 watts, like Einhell TE-AG 230/2000

The requirements for angle grinders for grinding are very different. 6mm sharpening wheels are heavier and require additional watts to unwind. When peeling, many locksmiths increase the pressure, trying to remove a larger layer from the surface in one pass and crush the engine. It is more difficult for a low-power motor to rotate during pressing and it overheats faster.
When cutting workpieces, friction occurs at the end of the disk (1-3 mm), and when grinding, the angle grinder is tilted and the contact width of the wiper blade is several centimeters.

When choosing a powerful large angle grinder for roughing parts, like Dnipro-M MShK-2700 (2700 watts) or Titan BSUM26230 (2600 watts), the weight requirement fades into the background. Grinding is carried out under the own weight of the tool, and not on the weight, only by controlling the trajectory of the tooling and slightly pressing.
Among the small angle grinders, the leaders in power are: Forte EG 14-125L with 1400 watts, Makita GA5021C with 1450 watts, Svityaz SKSh 15-125 DR with 1500 watts.

Why the lower limit is not lowered to the minimum?

The variable speed angle grinder gives you more options for grinding and polishing, but not cutting. Deep scratches are not removed at high speeds. The fur coat or foam pad attached to the rubber support-sole will be torn off, the rubber platform will start to smoke, the polish will fly off the rig. Traces of burning will remain on the wooden blank, and the plastic will soften and melt.
The impact with felt, foam rubber, wool, sisal or polymer-abrasive wheels is performed at low, but different speeds and the wider the speed range on the angle grinder, the more possibilities for processing.

However, the cooling system of the electric motor of the angle grinder depends on its rotation and at low speeds, the motor, especially under high load, quickly overheats.
For professional models of most manufacturers: AEG WS12-125 XE, Makita 9562CRV, Flex LE 14-11 125, the lower limit is 2800 rpm. On a household tool, you can find 1000 rpm, like the Titan PSUM11125E. The operation of such an angle grinder requires more attention from the user and periodic switching on at maximum idle speed to increase the flow of cooling air.

Angle grinder 125mm Titan PSUM12125E with speed control

Small angle grinder 125mm Sturm AG9012T

angle grinder 125 mm with speed control and case Vitals Master Ls12110BRvc power

angle grinder (angle grinder) with speed control

  • FIXTEC keyless nut. work safety and quick change of equipment

Power: 1300 W

Disc diameter: 125mm

Speed: 2800-11500 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Maximum safety: double insulation and protection against accidental starting

Power: 1300 W

Disc diameter: 125mm

Speed: 2800-11500 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Automatic safety clutch Metabo S-automatic. for safety
READ  Clamped Disc On Angle Grinder How To Loosen A Nut

Power: 1550 W

Disc diameter: 125mm

Speed: 2800-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Best-seller! Long service life thanks to self-shutting off brushes

Power: 1500 W

Metabo WE14-125V diagnosis and repair the RPM SPEED PROBLEM electric variable speed angle grinder

Disc diameter: 125mm

Speed: 2800-10000 rpm

Maintaining constant speed under load: no

Soft start: yes

Power: 1300 W

Disc diameter: 150mm

Speed: 3000-9500 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 1200 W

Disc diameter: 125mm

angle, grinder, speed, control

Speed: 3000-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Super Joint System improves performance and safety

Power: 1200 W

Disc diameter: 125mm

Speed: 2800-12000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • For heavy loads: SJS jerk protection and speed control

Power: 1400 W

Disc diameter: 125mm

Speed: 2800-12000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Vibration Control on the handle dampens up to 40% vibrations

Power: 1700 W

Disc diameter: 125mm

Speed: 2800-11500 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • The Kick Back Stop system will instantly stop the engine if the rig is jammed

Power: 1200 W

Disc diameter: 125mm

Speed: 2800-11500 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Save time on tool changes. no wrench required

Power: 1300 W

Disc diameter: 125mm

Speed: 2800-11500 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • MetaboMarathon motor. overload capacity 20% higher than normal

Power: 1700 W

Disc diameter: 125mm

Speed: 2800-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Slim handle fits perfectly in the hand. comfortable to work with

Power: 950 W

Disc diameter: 125mm

Speed: 0-11000 rpm

  • Engine speed control. for work with different materials

Power: 1250 W

Disc diameter: 125mm

Speed: 3000-12000 rpm

Maintaining constant speed under load: no

Soft start: no

Power: 1100 W

Disc diameter: 125mm

Speed: 3000-11000 rpm

Maintaining constant speed under load: no

Soft start: no

Power: 900 W

Disc diameter: 125mm

Speed: 2800-9000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Long motor life due to automatic brush shut-off

Power: 1400 W

Disc diameter: 125mm

Speed: 2800-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 1400 W

Disc diameter: 125mm

Speed: 3000-9500 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 900 W

Disc diameter: 125mm

Speed: 0-11000 rpm

Maintaining constant speed under load: no

Soft start: no

  • Smooth start-up and overheating protection extend engine life

Power: 1520 W

Disc diameter: 125mm

Speed: 2600-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 1100 W

Disc diameter: 125mm

Speed: 4000-10000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Aluminum-magnesium gearbox is resistant to damage and dissipates heat well

Power: 950 W

Disc diameter: 125mm

Speed: 3000-11000 rpm

Maintaining constant speed under load: no

Soft start: yes

Power: 900 W

Disc diameter: 125mm

Speed: 0-11000 rpm

Maintaining constant speed under load: no

Soft start: no

Power: 950 W

Disc diameter: 125mm

Speed: 0-11000 rpm

Maintaining constant speed under load: no

Soft start: no

Power: 1200 W

Disc diameter: 125mm

Speed: 3000-12000 rpm

Maintaining constant speed under load: no

Soft start: no

Power: 750 W

Disc diameter: 125mm

Speed: 3000-12000 rpm

Power: 860 W

Disc diameter: 125mm

Speed: 6000-11000 rpm

Maintaining constant speed under load: no

Soft start: no

  • Additional handle with anti-vibration system for safe working

Power: 1750 W

Disc diameter: 125mm

Speed: 2800-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • VTC technology. constant speed operation even under load

Power: 1500 W

Disc diameter: 125mm

Speed: 3500-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • Maximum safety thanks to the Metabo S-automatic safety clutch

Power: 1550 W

Disc diameter: 125mm

Speed: 2800-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 900 W

Disc diameter: 125mm

Speed: 2800-9000 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 1400 W

Disc diameter: 125mm

Speed: 2000-6800 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 1200 W

Disc diameter: 150mm

Angle grinder CHEAP speed controller

Speed: 3000-9000 rpm

Maintaining constant speed under load: no

Soft start: no

  • Constant electronics maintains RPM under load

Power: 1700 W

Disc diameter: 125mm

Speed: 2200-10500 rpm

Maintaining constant speed under load: yes

Soft start: yes

  • KickBack Stop system. turning off the tool when the disc is jammed

Power: 1800 W

Disc diameter: 125mm

Speed: 2800-12000 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 900 W

Disc diameter: 125mm

Speed: 3000-11000 rpm

Maintaining constant speed under load: no

Power: 1200 W

Disc diameter: 125mm

Speed: 6000-12000 rpm

Maintaining constant speed under load: no

angle, grinder, speed, control

Soft start: no

  • Long service life thanks to armored winding

Power: 850 W

Disc diameter: 125mm

Speed: 2800-11000 rpm

Maintaining constant speed under load: yes

Soft start: yes

Power: 1750 W

Disc diameter: 125mm

Speed: 2000. 7600 rpm

Maintaining constant speed under load: yes

READ  How to Disassemble a Makita Large Angle Grinder

Soft start: yes

Power: 1500 W

Disc diameter: 150mm

Speed: 2400-8400 rpm

Maintaining constant speed under load: yes

Soft start: no

angle grinder with speed control. a tool with the function of setting a certain number of revolutions of the grinding, cutting or polishing wheel to select the optimal rotational speed for a specific material.

When to use the variable speed angle grinder

The main purpose is the processing of various materials. You need to grind metal at 2000. 3000 rpm, cut stone at about 6000 rpm, for metal cutting, you need to set it from 7000 to 10,000 rpm. Wood is sanded at a minimum speed. from 2000 to 4000, depending on its density. If you try to work with wood at 6000 rpm, the part will turn black and the attachments will become unusable. But for cutting a bolt 15 mm in diameter, it will take already 8000 rpm.

Parameters for selection of angle grinder with speed control

  • Rotation adjustment range. primarily depends on the maximum diameter of the nozzle. The smaller the disc, the faster it spins. For angle grinders 115 and 125 mm with adjustable speed, this parameter ranges from 2800 to 10,000. 12,000 rpm. The 150 mm disc angle grinder has a narrow range from 2300 to 9000 rpm. Most of the angle grinder with a 180 mm disc can change the number of revolutions from 3000 to 8000 rpm.
  • Power. household angle grinder with adjustable speed of not more than 1200 W can work with discs of 115. 125 mm. Perfect for work no more than 30. 40 minutes a day: cut parts made of metal, wood, plastic up to about 50. 60 mm thick, depending on the diameter of the case of the angle grinder itself. Professional models are most often used with discs of large diameters (150, 180, 200 mm) and work for 4. 6 hours without interruption with a high power of 2000. 3000 W. By the way, the price for such a tool is an order of magnitude higher than for household.
  • The soft start system will increase labor safety, especially if the maximum speed is set, and will allow you to start work accurately. The constant speed function is important when machining hard materials so that productivity does not drop when the disc hits the material.

Metabo WEV 10-125 Quick

This is another variable speed angle grinder. 125 mm is considered the optimum disc size for the Metabo WEV 10-125 Quick. Among all the known 125 mm angle grinders, this model is considered the best in terms of power. It features a wide spindle speed adjustment range and a constant speed under variable load. This is ensured by built-in electronics that protect the angle grinder engine from overloads and smoothly start the system. The angle grinder has an automatic overload clutch and angle brushes that shut off if power is suddenly cut off. This is important for safety during operation of the powerful angle grinder.

Professional angle grinder Makita 9565Cv

Angle grinder angle grinder “Makita” 125 mm by adjusting the revolutions ensures the implementation of any kind of work at speeds from 2800 to 11000 rpm. The Makita 9565Cv requires a 125 mm disc and a 220 volt power supply. Power consumption of angle grinder. 1400 watts. Angle grinder 125 mm with adjustable speed 9565Cv is a professional power tool, the design of which contains:

  • rotation speed control, which makes it possible to optimize the operating mode. The spindle receives a certain speed required for a specific task: cutting, stripping or grinding;
  • locking the power button. This is important to ensure safety during operation, especially in cases of unplanned power outages (turning off the light, pulling the plug out of the socket). Thanks to the secondary start fuse, the owner of the Makita 9565Cv is protected from arbitrary switching on the angle grinder and does not risk injury;
  • double insulation;
  • speed stabilization system, which, due to changes in disk loads, facilitates the process of working with massive labor-intensive parts;
  • two-position side handle, which provides a secure hold of the power tool during operation. Convenient handle option with anti-vibration function.

angle grinder 9565Cv is an angle grinder “Makita” 125 with speed control and smooth descent, due to which the power tool is protected from critical overloads at the moment of switching on. A smooth start-up protects the angle grinder system and the numerous parts contained in it (disc, winding, engine brushes) from a strong voltage surge. Speed ​​gains smoothly, angle grinder does not tremble in hands.

Polishing attachments

The quality of the polishing work depends on the adjustable speed and the correct attachments. Flexible diamond discs are recommended for grinding marble and granite surfaces by experienced stone engravers. An emery flap wheel is suitable for wood. For polishing metal products and surfaces, it is best to use circles containing felt or felt, which is attached to the attachments with a special Velcro. Felt attachments are also suitable for glass polishing. But in this case, you need to purchase a special diamond paste. Painted or varnished surfaces should be treated with lambswool attachments.

READ  Is It Possible To Cut Wood Angle Grinder

Which angle grinder to choose? Household and professional tools

When buying an angle grinder, you should consider such indicators as rotation speed, power, availability of additional functions and disc sizes.

Angle grinders are indispensable in everyday life. These are ordinary angle grinders, which are compact in size and demanding on the operating mode. After 10-15 minutes of work, the owner of an ordinary grinder is forced to take a break in order to prevent it from overheating. Household angle grinders are not designed for daily use. Their technical performance is much lower than that of professional devices that can be used for a long time without fear of overheating. In addition, professional angle grinders are equipped with brass inserts and a metal body. This is due to the fact that they have to be used in extreme conditions: laying pipelines, earthworks, etc. Such an environment requires a tool that is as protected as possible from dust and moisture.

angle grinder with speed control: an overview of the best models

An angle grinder, popularly called an angle grinder, is a versatile tool that can be used to perform a whole range of work: cutting, grinding, cleaning metal, wood, stone and other materials. This tool has found its way into industry. It is ideal for both professional renovation work and household chores.

Now on the market there are a large number of different models of angle grinders intended for home or professional use. The last angle grinder with adjustable speed is equipped with special attachments of any size, characterized by the presence of trigger safety devices and additional functions. With all the variety of models and sizes, the angle grinder has a common task, which is to make the work process as easy as possible for a person and save time.

Bosch: Model GWS 850 CE

Angle grinder “Bosch” with adjustable speed and power of 850 watts is ideal for grinding with diamond cups of natural and artificial stone. This angle grinder is one of the most demanded electronic tools in the work of professional stonecutter engravers, who every day face the need to polish in places where granite or marble is cut. This angle grinder is lightweight, which makes operation much easier: the master can hold it with one hand.

Bosch GWS 850 CE variable speed angle grinder comes with a one-year professional warranty.

The grinding speed can be adjusted using six positions. The range of speeds of rotation of grinding attachments and discs from 2 800 to 11 000 revolutions.

The quality of polishing directly depends on the speed of rotation of the attachments. The smaller it is, the higher the quality of work. This requirement applies to granite, marble, glass and other surfaces that can be handled with a grinding tool equipped with an adjustment function. For working with marble surfaces, experts recommend choosing the speed at which the sander produces 2800 revolutions. Wooden surfaces can be processed with special attachments at the highest speeds. The maximum speed for this angle grinder is 11000 revolutions.

Bosch GWS 850 CE includes a wrench, handle and two fastening washers for discs and nozzles.

The best manufacturers of angle grinder

Domestic and foreign companies are engaged in the production of angle grinders. High results were achieved by the German manufacturer Bosch, the Japanese Hitachi and Makita. They mainly produce models for professional use: angle grinder with variable speed, power exceeding 1200 W and various disc diameters. Angle grinders make it possible to perform any kind of complex work. Using special diamond discs, you can cut concrete and stone, prepare walls for wire. Additional side handle provides control of the powerful power tool while in use.

How to choose the right disk size?

For angle grinders, discs with a diameter of 115 to 230 mm are intended. The working part is the part that protrudes from the body of the device. The attachments tend to wear off during use. Discs with a diameter of 115 mm wear out quickly and are suitable for cutting products with a thickness of no more than 3 cm. over, this diameter is not suitable for working in hard-to-reach places. For such operations, discs 180-230 mm are better suited.