Which wrench is better electric or pneumatic?

Pneumatic nutrunner is needed for fast unscrewing/screwing of screw joints. On the market today there are many models of different brands, so it is quite difficult to choose the right wrench for specific works. Let’s see what to look for when choosing a pneumatic nut wrench and take a closer look at the 4 best models.

The pneumatic nut wrench is needed, as it is easy to guess, for tightening and unscrewing nuts. When the wizard squeezes the trigger, a jet of strong compressed air comes from the compressor, striking the cavities of the rotor, making it begin to rotate. The rotor axis drives a frame with 2 metal hammers which in turn move the spindle axle of the impact wrench. A socket head, fixed on an axis, is used to tighten the desired nut. The nuts are unscrewed thanks to the reversing function. Depending on the built-in mechanism, wrenches are divided into:

  • hammerless. that only perform a rotary motion for simple fasteners;
  • impact wrench. The rotating action is accompanied by pulses so that the fasteners are screwed particularly securely;
  • pistol type. The axes of rotation are at right angles to the body axis. This is a classic, familiar shape tool with a balanced center of gravity;
  • direct type. all axes are parallel. It is more convenient to work in hard-to-reach places.

The following are some of the main features of pneumatic wrenches

Let’s look at what parameters you need to pay closer attention to when choosing a pneumatic wrench:

  • Tightening torque is the main feature by which you choose the tool. Tightening torque range from 30 Nm to 3000 Nm. Every business has its own recommendation for the torque range of a torque wrench. For example, to tighten the wheels of passenger cars requires a torque of 90-120 Nm;
  • rotation speed. the higher it is, the faster you can tighten/unscrew the fastener. However, there are nuances here, for example, when working with small nuts at high speed you can easily tear the threads;
  • on average, when choosing a tool, the rule should be that an air compressor produces 30%-40% more air than the tool it will consume at the same time. If an air screwdriver consumes 150 l/min, then a compressor producing up to 225 l/min is suitable for it. the vast majority of models operate at 6,3 bar, but there are wrenches with a pressure of 8,4 bar. Some air brushes work at a pressure of 3 bar. The tool should be chosen according to the air consumption of the compressor in order not to exceed this figure;
  • connection square size relates to torque. The more torque the tool has, the larger the connection square footage the tool should have. The size of the connection square of the impact wrench should correspond to the sizes of the other impact heads used on other tools. Wrenches with a half-inch drive square are the most common;
  • operating shaft length can be different;. the impact wrench is one of the most popular tools in the world. Long shaft allows you to work with fasteners, recessed in hard-to-reach places;
  • impact mechanism in modern models is a must. If the nut is not unscrewed in normal mode, the impact force will help to move ingrained fasteners, corroded;
  • weight, ergonomics, equipment, additional handle. all these are also important parameters when choosing a tool. Do not forget about them when choosing, because these parameters largely form both the initial impression of the purchase, and the feeling of working in the future.

Choosing an impact wrench for the car service and tire fitting

The nutrunner is one of the most important tools in auto service and tire fitting. Even such a trivial thing as changing wheels can turn into a real headache without this tool. The right nutrunner lets you work fast and without loss of quality. Let’s take a closer look at how to find the right tool.

The first thing you want to mention is the type of wrench.

The age-old question: pneumatics or electrics? Though many people dislike pneumatic tools. Nevertheless, in the case of an auto repair shop, they are usually preferred. There are a number of reasons for this

As practice shows, electrics are much less reliable and durable than pneumatics. At the service station the tool is constantly in motion, so the electric wrench with a high probability will quickly break from such loads. There is not much to break in pneumatics. In addition, such tools do not heat up during use, so the body can be made of metal. And that also prolongs the life of the machine.

It is also important to remember that the wrench for the car service must be powerful. Pneumatics are much easier to achieve, and the tool works without overloading. Of course, you can find a good powerful electric nutrunner, but it is much more expensive.Someone will object that it does not take into account the price for the compressor, but it is still needed at the car service center. At least for trivial tire inflation. The main thing is to have enough compressor life for several tools at once.

Another argument that is made in favor of electric wrenches are the cordless models. Indeed, it is often convenient to have an autonomous tool, especially if you have to work in hard-to-reach places. The problem is that it’s hard to make a cordless impact wrench powerful. Most likely, it will be weak for a car-care center. In addition, the tool will run out quickly, so you have to have several spare batteries at once.

Thus, for car service and tire fitting it is better to take a pneumatic. An electric impact wrench only makes sense as an additional tool to work in hard to reach places.

Let’s choose a seating square and a tightening torque

Now let’s talk about what kind of machines you are going to work with. This determines the characteristics of the right tool. We are interested in the seating square and the tightening torque:

Passenger cars

Seating square: 1/2″ Tightening torque: 800-1000 Nm

Small trucks

Fitting square: 3/4″ Tightening torque: 1200-1500 Nm

Large trucks

Seating square: 1″ Tightening torque: 2400-3000 Nm

Tightening torque higher is only required for the biggest machines.

Choice of impact wrench construction

As for the construction of the nutrunner, each version has its own peculiarities:

Straight

Standard pistol shape.The ratchet is easier to hold horizontally, so for standard applications, such as unscrewing wheels, you’re better off with the ratchet. In addition, such a tool has more torque.

Angular

So-called ratchet.Has an elongated body with a 90 degree spindle at the end. This design makes it easier to work in hard-to-reach places.

Characteristics to consider

There are also a number of characteristics that are worth paying attention to when choosing a wrench for the car repair shop.

A percussion mechanism is highly desirable. Often rusted, stuck, and just plain tight fasteners have to be handled. The impact wrench can handle them easily without damaging the bolt or nut.

Also the tool should have a reverse gear, because the part should not only be unscrewed but also screwed back afterwards.

Very good, if the machine has rubber pads on the handles. They reduce vibration, which reduces the load on the hands, and in general the impact wrench becomes easier to hold. This is very noticeable when working with the tool on a regular basis.

But the tightening force adjustment is not obligatory at all. Yes, sometimes you need to tighten the part with precision, but those are unique cases. You can usually do everything by eye. Also note that the tightening torque adjustment noticeably increases the cost of the tool.

Sometimes it is recommended to choose tools with more revolutions per minute. But in practice it hardly matters at all. There is almost no difference in the unscrewing speed of a standard nut at 1000 rpm and a standard nut at 5000 rpm.

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Sale of construction equipment.©pnevmoteh.ru

Pneumatic wrench. indispensable thing in home garage or car service. It is fast for removing nuts and bolts from wheels. Mechanically it is a time consuming procedure, but with this tool it takes a few seconds. This article presents a rating of pneumatic wrenches.

Fubag PW158/312(100109)

Fubag impact wrench has a metal body that protects it from damage. The set includes 10 sockets, oiler, gauge, hex key, extension cord and box. With this set and 312 Nm of torque it is suitable for work with hard threaded connections. This is an impact wrench with a Rocking dog mechanism. Reverse function.

Wester HSS-10 impact wrench with 130-310 Nm torque. This model has a bright orange design and good ergonomics. Average air consumption. Opening wheel nuts can be difficult. Suitable for small loads in the home garage. Includes: oil can, hex key and detachable adapter.

The PATRIOT PN 312 impact wrench is ideal for garage work. It works well for undoing car wheel nuts. Only has enough air power for about two or three nuts. Power can be adjusted with a switch that can be set to one of 4 modes. The impact wrench has a metal body without a rubber covered handle. This is a major drawback. May need duct tape for easier use.

One of the best impact wrenches for the home garage. Powerful enough to handle any bolts and nuts. no screw heads come off for the latter ones. Includes carrying case, Rapid coupler and oil cap. Socket with lots of sockets, from 9 to 27mm. Can be used for industrial applications with a suitable compressor. Slightly heavy. weighing almost 3 kg.

Impact wrench Eco AIW-600 with external square chuck. Good choice for any garage or small auto shop. includes carrying case. Holds a full set of sockets, oiler, union fitting, and extension cord. Average torque of 569 Nm, but handles most nuts. Metal housing can even be dropped onto concrete.

Compact Wester PSS-10 wrench in the form of a gun with a knurled rubberized handle. Easily cuts nuts even in hard-to-reach places, without making your hands tired. Has three-position adjustable torque control. Almost no noise or vibration. On the whole, this pneumatic wrench is a good solution for a small auto repair shop.

The high-end segment representative from JONNESWAY justifies its price very well. Handles hub nuts and pulley bolts well. Works great in tandem with 8-10 mm hose, especially with reinforced cord. The impact wrench has a rubberized handle that damps vibration, allowing it to work longer without interruption. The best buy for your small auto shop or home garage.

Easily removes nuts at 10 atmospheres. This is an important point, because with a different pressure value can not cope with the fasteners. The scope of supply is not big, just the hose fitting and the instructions. Powerful and reliable. a great garage and car service option for six months or more even with regular use.

The small but powerful G1285 is the right choice for domestic and professional use. Manages bolts 22-24mm. Maximum torque value is 1220 Nm. Impact wrench has a steel drive shaft that lasts a long time. The body is made of impact-resistant material. it can withstand a one-meter drop.

Choosing an impact wrench is easy. just pay attention to a few imperative parameters:

  • tool weight and grip material. A heavy and bulky impact wrench is difficult to handle for long periods of time and in hard-to-reach places. The rubber-coated handle is also an important detail. It absorbs vibration, keeps your hand from slipping and freezing in the cold;
  • Maximum torque. The most important feature. The highest level determines how well the impact wrench can handle large nut sizes. Tightly screwed fasteners also require a high torque rating;
  • air consumption. Here you need to pay attention to the volume of the compressor receiver with which the impact wrench works. It needs to produce 30-50% more air to work effectively;
  • complete set. The case, a set of sockets of different millimeters, oil can, pipe connection. all these are useful little things that will be useful in any garage or car service. In addition, kits are often cheaper in terms of the total cost of the components.

When choosing an impact wrench use not only the opinions of experts but also customer reviews. Our top rated impact wrenches are based on them.

Pneumatic nutrunner. an indispensable thing in a home garage or car service. It quickly unscrews nuts and bolts from wheels. Mechanically it is a time-consuming procedure, but with this tool it takes a few seconds. This article presents the rating of air impact wrenches.

Fubag PW158/312(100109)

The Fubag air wrench has a metal housing that protects it from damage. The set includes 10 impact wrenches, oiler, socket, hex wrench, extension cord and box. With this set and 312 Nm of torque it is suitable for work on hard screw connections. It is a Rocking dog impact wrench. It has a reverse function.

Impact wrench Wester HSS-10 with a torque of 130-310 Nm. This model has a bright orange design and good ergonomics. Average air consumption. It can be difficult to loosen wheel nuts. Suitable for light use in a home garage. Includes oil can, hex key and detachable adapter.

The PATRIOT PN 312 air impact wrench is ideal for garage garage work. It is good for unscrewing nuts from car wheels. Only has enough air power for about 2 or 3 nuts. Power can be adjusted with a switch that can be set to one of 4 modes. The impact wrench has a metal body without a rubber covered handle. This is the main disadvantage. May require electrical tape for easier use.

One of the best impact wrenches for the home garage. Powerful enough to handle any screws and nuts. The latter do not have wrenched heads. Has a case, Rapid coupler and oil gun. Plenty of sockets in the set. from 9 to 27 mm. With the right compressor, can be used for industrial applications. Slightly heavy. weighs almost 3 kg.

Impact wrench Eco AIW-600 with external square chuck. Good choice for any garage or small auto shop. includes carrying case. It has a full set of sockets, oiler, hose nozzle, extension cord, etc. Average torque of 569 Nm, but handles most nuts. Metal housing withstands even a fall on concrete.

The Wester PSS-10 is a compact impact wrench in the shape of a gun with a knurled rubberized handle. Easily cuts nuts even in hard-to-reach places without making your hands tired. Three-position tightening torque adjustment available. Almost no noise or vibration. On the whole, this air ratchet is a good solution for a small auto body shop.

Representative of the JONNESWAY high-end segment justifies its price very well. Works well with hub nuts and pulley bolts. Works great in tandem with an 8-10 mm hose, especially with reinforced cord. The impact wrench has a rubberized handle that damps vibration and allows you to work longer without interruption. Ideal purchase for the small garage or home garage.

Completely reliable at 10 atmospheres. This is an important point, because with a different pressure setting may not cope with the fastener. The scope of delivery is not much, only the drive unit and the instruction manual are included. Powerful and reliable. a great garage and service option for six months or more even with regular use.

The small but powerful G1285 is the right choice for domestic and professional use. Can handle 22-24mm screws. Max torque value 1220 Nm. The impact wrench has a steel drive shaft that lasts a long time. body is made of impact-resistant material. withstands a one-meter drop.

Choosing a pneumatic impact wrench is easy. just pay attention to a few mandatory parameters:

  • Tool weight and grip material. With a heavy and bulky impact wrench will be difficult to work for a long time and in hard-to-reach places. Rubber-coated handle is also an important detail. It absorbs vibration, keeps your hand from slipping and freezing in the cold;
  • maximum torque. Most important feature. The highest level determines how well the impact wrench can handle large nut sizes. Tightly torqued fasteners also require a high torque rating;
  • air consumption. Here you need to pay attention to the volume of the compressor tank with which the impact wrench works. It should produce 30-50% more air for efficient operation;
  • complete set. Briefcase, a set of screwdrivers of different millimeters, oil can, fitting. all these are useful little things that will be useful in any auto service center or garage. In addition, kits are often cheaper in terms of the total cost of the constituent elements.

When choosing a pneumatic impact wrench not only be guided by experts, but also by customer feedback. It is on the basis of them is compiled our top pneumohovernors.

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1 different kinds of the best impact wrenches

The use of hand tools for mechanization of locksmith work can significantly increase the speed of their implementation.

Such devices are widely used in industry, construction, transport, repair enterprises in the shipbuilding and mechanical engineering. Also used by many tire dealers and car repair shops for servicing and repair work on machinery and equipment.

The impact wrench is a complex construction with a handle to simplify holding the tool while working. As part of this device there are the following elements, each of which performs certain functions:

  • Housing. Made of metal or polymers, can be combined. Serves to combine parts and assemblies into a single mechanism and ensures their interaction. The most common type is a pistol-shaped housing with a handle containing a control key.There are wrenches where the spindle is positioned perpendicular to the case to increase the lever length.
  • The drive can be: electric, hydraulic, pneumatic or mechanical. Built-in motor develops torque and enables rotation of the actuator.
  • Gearbox. Designed to convert (increase) torque with a reduction in the speed of the driven shaft. Suitable for impact wrenches with high-speed motors.
  • Spindle with chuck. The latter ensures that the head is held securely in place while the work is being performed. The spindle, which is usually also the gearbox output shaft, drives the chuck.

The impact wrench can be supplied with a variety of head sizes, stops, removable handles, and other accessories to make it easier to use.

The way the tool works is as follows:

  • A head of the appropriate size is inserted and carefully clamped in the chuck.
  • The tool is attached to the bolt or nut.
  • The operator selects the direction of rotation of the spindle with a switch to tighten or loosen the connection.
  • Holding the wrench with one or both hands, the operator presses the start button, thereby starting the drive.

The rotation from the motor is transmitted via a gearbox to the spindle and then to the chuck with the screwdriver head mounted in it.

Purpose and function

A nut wrench is a highly specialized hand tool used for unscrewing or tightening:

In addition to the basic operations, this device can perform a number of other functions:

  • Tightening connections with preset torque. Used for fixing the cylinder heads of internal combustion engines and other operations.
  • Unscrewing or tightening nuts using an impact-impulse mode. Allows for successful disassembly of stuck bolt connections without destroying parts. Reverse operation is performed when assembling critical assemblies that are subjected to high loads.

The tool described here always operates in both directions, allowing threaded connections to be unscrewed and tightened.

How to choose

The efficiency of using this type of hand tool depends on a number of factors and its parameters. The following points must be taken into account when selecting a wrench:

  • Special design features. Devices with a pistol grip produce less force than those with a spindle perpendicular to the body. Large lever arm makes them suitable for difficult tightening and loosening screw joints of large sizes.
  • Body material and ergonomics. Provides ruggedness and comfort. The best professional models are made of steel or light alloys with rubberized handles. For domestic use and small workshops, wrenches with a body made of high-quality plastic are suitable. Handle shape should be comfortable and as close to the plane of rotation as possible.
  • Drive power. the higher the value, the more tension the impact wrench develops.This is often a decisive factor when selecting tools for large-scale production or road and highway construction projects.
  • Tightening torque. In determining this value, it must be determined according to the conditions for the intended application. The maximum possible force on the spindle is not sufficient, while excessive force leads to severed threads.
  • Free rotation speed. Has a decisive influence on the productivity of the tool and allows to reduce the time for individual operations.

The price of the impact wrench must match its quality and functionality. A tool is mainly purchased for a certain scope of work and its performance must be sufficient. Redundancy usually results in cost overruns, and insufficiency does not allow the planned operations to be performed with proper quality.

Important

The following factors are decisive in selecting a wrench:

  • The possibility of autonomous use or the need to connect to electric, pneumatic or hydraulic networks. By this criterion, the tool is selected according to its main area of application: cordless devices provide high mobility and are convenient for large construction projects and in the home. Linear tools have a great capacity and are used in the shops and on conveyors.
  • Compliance with power supply parameters. The characteristics of hydraulic, electric and pneumatic wrenches must match the available mains or equipment.Three-phase tools simply will not work at 220V, and exceeding the pressure limit causes damage to the drive.
  • Completeness. When choosing a machine it is essential to establish exactly what types and sizes of nozzles and accessories are needed. Tools should perform all types of work, without exception, defined by the technological process. The maximum configuration is required for repair shops, where a lot of different equipment is serviced.
  • Ease of use and simplicity of operation. A quality professional quality nutrunner minimizes preparatory operations and increases productivity of trained personnel.Routine maintenance should also not take much time and should be performed by the employee himself without the involvement of specialists and special equipment.
  • Functionality. The presence of speed and torque control modes significantly speeds up the performance of technological operations and their quality. The operator is released from the need to constantly monitor the result, which makes it possible to simplify his actions to the limit, to make them familiar, automatic.

Design and principle of operation

Spanners come in all shapes and sizes:

They have advantages and disadvantages. Manual tools, for example, are a gearbox-multiplier type construction, which amplifies the torque applied by man. This is the easiest and cheapest option, more suitable for occasional work, such as in a private garage. Electric wrenches are more powerful and more convenient. They look like a drill or screwdriver, with a screwdriver bit. Tighten well and fast. They come in different designs and sizes, cordless or corded, with or without a hammer. Pneumatic ones need compressed air from a compressor to work. They are the most powerful wrenches, yet light and handy. Designed for volume work. in workshops, production.

All spanners, regardless of design, are socket wrench-like bits that are simply turned in different ways. manually, by an electric motor, or pneumatically. Some electric models have an impact mechanism that makes it possible to unscrew too tight a fastener or, conversely, to tighten it more. In addition, there are hydraulic and gasoline versions, but they are very cumbersome, used in specific conditions, are rare, so we will not consider them. Most people have never seen these before.

Nickel-metal hydride batteries (NMBBs)

The developers of NMGBs tried to avoid the negative qualities of nickel-cadmium batteries, and they succeeded in some things:

  • SMGB have a lower mass and smaller dimensions;
  • NMHBs are characterized by minor toxicity;
  • Low “memory effect”;
  • good capacity figures;
  • are not susceptible to mechanical damage;
  • characterized by a high number of charge-discharge cycles.

Negative aspects of LMGBs

GROSS G985 pneumatic impact wrench, 57440-1

  • cannot be used at sub-zero temperatures;
  • Lifetime of LMGBs is shorter than that of nickel-cadmium batteries;
  • The significant cost of NMHBs;
  • The charging time of LMGB is quite long;
  • bulk materials are spoiled by deep discharging.

A real breakthrough in the development of batteries was the invention and introduction into production of lithium-ion batteries (LIB).

Budget (up to 3000 )

Fubag PW158/312(100109)

Fubag impact wrench has a metal body that protects it from damage. Includes 10 sockets, oiler, coupling, hexagonal key, extension cord and box. With this kit and 312 Nm of torque, it is suitable for work with hard threaded connections. Impact wrench of the Rocking dog type. Reverse function.

Wester HSS-10

Impact wrench Wester HSS-10 with a torque of 130-310 Nm. This model has a striking orange design and good ergonomics. Medium air consumption. Can be difficult to loosen wheel nuts. Suitable for light-duty use in a home garage. Includes oil can, hex key and detachable adapter.

PATRIOT PN 312

The PATRIOT PN 312 impact wrench is ideal for garage use. It copes well with the unscrewing of nuts from car wheels. True, there is only enough air supply for 2 or 3 nuts. Power can be adjusted with a switch that is set to one of 4 modes. The impact wrench has a metal body without a rubber-coated handle. This is the main disadvantage. May require duct tape for easier use.

The best cordless wrench

This tool has a high level of autonomy and mobility. the cordless impact wrench has a removable battery that fits in the bottom of the handle to keep it working. This tool can be used for work in hard-to-reach and isolated locations, on roofs, in the field, outdoors, and on rooftops. Two types are available: straight (with pistol grip) and socket wrench (with narrow body for access to awkward connections).

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Features

Two batteries and a battery charger are usually included to ensure continuity of work: while one is being charged, the other is being used.

which, wrench, better, electric, pneumatic

Batteries are sometimes separately available, but consideration must be given to bracket and battery compatibility when selecting.

Some models are equipped with LED illumination, which adds to the convenience of using them.

Characteristics

  • The following are the main features of cordless impact wrenches and their ranges of values:
  • Battery voltage min. 10.8V; max. 28V.
  • Torque of 25 to 650 Nm.
  • Battery capacity. 3 to Ah.
  • Spindle speed 0 to 2600 min-1.
  • Impact frequency 0 to 3200 min.1.
  • Tool weight 2.2 to 3.0 kg.
  • Minimum and maximum thread sizes from M12 to M20.

Pros of

  • The battery drivers are packed with high-capacity lithium-ion (lithium-polymer) batteries that can handle long periods of continuous operation and do not require a complete discharge for recharging.
  • Most tools have a built-in indicator to indicate the charge level of the power supply.
  • Unified 1/2˝ square spindle provides the ability to use standard heads for the job.
  • A large proportion of the models are backlit for convenience.
  • Rubberized body and grip prevents the tool from slipping out of your hands.

Disadvantages

When choosing a cordless screwdriver, you should pay special attention to the completeness, the lack of batteries and charger will lead to additional costs.

This tool is not recommended for use in rooms with high humidity, moisture entering the body can cause damage to the drive.

Rating of best models

  • The highest torque for models of this type. Bosch GDS 18 V-LI HT.
  • The most affordable is ENCOR AKM1811
  • The Hammer ACD120LE Premium is the best in terms of equipment level.

Comparative table of the best impact wrenches

With up to 300 Nm×m torque, 3,000 strokes per minute and 350 W power output.

Weight only 920 g, designed for simpler tasks, the torque does not exceed 90 N x m.

Torque up to 350 N x m, its weight is 1800 g, it is reversible, manufacturer’s warranty for 2 years.

Torque up to 64 N x m, includes a 1.5 A x hr Li-Ion removable battery as well as charger and case.

Torque up to 310 N x m, pressure 6.14 atm, airflow 114 liters per minute, low noise up to 83 dB.

312 N x m, no need to be surprised if you can’t undo a nut that needs half as much torque.

Claims up to 1,356 N x m, RPM up to 7,500 per minute, it can be used in the car repair shop, its features fully justify the price.

Weight 1,200 g, torque up to 70 N x m, rpm 170.

What is the minimum pressure required for a pneumatic impact wrench?Depends on the model of the impact wrench, most are 8 bar.

which, wrench, better, electric, pneumatic

The impact wrench can work all the time, like a drill?Too heavy for this application. You would still be better off with a real drill for this application.

Which ratchet is better for changing wheels: pneumatic or electric??An electric impact wrench with battery operation is best for cars, a pneumatic impact wrench for trucks.

How screwdrivers differ from cordless screwdrivers?A impact wrench is a heavier, more powerful tool. It is used for applications that require a high level of force.

The best cordless impact wrench

The tool offers a high level of autonomy and mobility. A cordless impact wrench has a removable battery that fits in the bottom of the handle to make it work. This tool can be used for work in hard-to-reach and isolated locations, on roofs, in the field, on the street and on rooftops. Two types: straight (with pistol grip) and box end tool (with narrow body for access to awkward connections).

Features

Two batteries and a battery charger are usually included to ensure continuity of work: while one is being charged, the other is in use.

In some cases the batteries are purchased separately; when selecting, pay attention to their compatibility with the impact wrench in terms of bracket and parameters.

Part of the models are equipped with LED backlighting, which adds to the convenience of using them.

Characteristics

  • The main parameters of cordless impact wrenches and their value ranges:
  • Battery voltage minimum. 10.8 V; maximum.28 V.
  • Tightening torque 25-650 Nm.
  • Battery capacity from 3 to Ah.
  • Spindle speed from 0 to 2600 min-1.
  • Impulse impact frequency from 0 to 3200 min.1.
  • Tool weight between 2.2 and 3.0 kg.
  • The minimum and maximum thread sizes are from M12 to M20.

Pros of

  • cordless wrenches are packed with high-capacity lithium-ion (lithium-polymer) batteries that can handle long periods of continuous operation and do not require a complete discharge for recharging.
  • Most tools have a built-in indicator to indicate the level of charge in the power supply.
  • Uniform 1/2˝ square spindle allows standard heads to be used for the job.
  • Backlighting on many models offers convenience.
  • Rubberized body and grip prevents the tool from slipping out of your hands.

Cons

When selecting a cordless impact wrench you should pay special attention to the completeness, lack of batteries and charger will lead to additional costs.

This tool is not recommended for use in high-humidity areas, as moisture entering the housing can cause damage to the drive.

Rating of the best models

  • The highest torque for models of this type. Bosch GDS 18 V-LI HT.
  • The most affordable one is the ENCOR AKM1811
  • The best in terms of equipment level. Hammer ACD120LE Premium.

Secondary factors. what people usually don’t pay attention to?

Impressed by the impressive figures of the main features when choosing a wrench, the buyer does not always pay attention to secondary factors. These include the ergonomics of the tool, the design features of the body and the power supply method. mains or battery. Concerning ergonomics or, simply speaking, comfort, pay attention to the structure of the body. it should be easy to work with the tool, holding it in one hand. For this in the machine should coincide a lot of factors. weight, center of gravity, convenience of the handle. In total it allows to work much longer without getting tired and to do the work qualitatively.

In terms of weight the cordless versions may seem heavy to the untrained person. Try holding it in your hands, however, and you will be pleasantly surprised. the battery is relatively light, which in turn makes the tool as a whole lighter. In addition, the batteries recharge very quickly. only about an hour. Battery operation frees you from direct “dependence” on a power outlet, but does not eliminate it altogether. Perhaps that’s why wrench sets will always be relevant.

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Electric impact wrench

Electric wrenches are economical. No inevitable losses when converting electrical energy into compressed air energy, and then into the kinetic energy of the wrench. Saves compressor resources. Electric manual wrenches are battery powered, which is more convenient because there is no cable that always gets in the way and never reaches the right place.

Pneumatic wrench

Pneumatic wrenches are more common and reliable in use. Wide range of models with a variety of characteristics and materials used to create the body. The use of the mini oiler before the air hose connection protects the integrity of the engine and internal components and prolongs the service life of the impact wrench. By choosing a professional air hose you can work in peace of mind and not be distracted by checking its integrity.

It should not be forgotten that impact wrenches. it is a hand tool and its role is to save energy of the operator therefore it is necessary to consider material of the body, weight and ergonomics of the handle.

It’s up to you to decide which impact wrench to choose as no one knows so well the needs of your workshop, the intensity and conditions of use of the equipment. Managers of Grand Tool online store will give answers to any question, will help with service and purchase of repair kits. All you need is full information about conditions under which the nutrunner will work.