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Electric Torque Wrench

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What Are Electric Torque Wrenches

An electric torque wrench is a type of wrench used to precisely apply a specific amount of torque to fasteners such as nuts and bolts. It sets and adjusts torque and drives the motor with electric energy to generate torque.

Electric torque wrenches are often seen in industries such as automobile maintenance, construction, manufacturing, aerospace, and steel structure installation. Because of its ability to precisely set the desired torque level, this helps maintain the structural integrity of the fastener and prevents the bolt from being over- or under-tightened. Therefore, it is very popular in these industries.

Benefits of Electric Torque Wrenches

Electric torque wrenches are newer advancements in torque wrench technology. They offer several advantages over manual torque wrenches, particularly in terms of efficiency and ease of use. Consider the following benefits of electric torque wrenches:

Power-assisted operation

Electric torque wrenches are powered by electricity, either through a corded or cordless design. This power assistance eliminates the need for manual exertion, reducing operator fatigue and increasing productivity.

Precise torque control

Electric torque wrenches provide precise torque control through electronic mechanisms. They often feature digital displays that allow users to set and monitor the desired torque levels accurately. Some models also offer programmable settings for different torque requirements.

Efficiency and speed

Electric torque wrenches offer faster and more efficient operation compared to manual wrenches. With their power-assisted mechanism, they can quickly tighten or loosen fasteners, reducing overall work time.

Data recording and analysis

Many electric torque wrenches come equipped with data recording capabilities. They can capture torque values, time stamps, and other relevant data, allowing for accurate documentation and analysis of tightening processes.

Electric Torque Wrenches and Their Common Sizes

When it comes to working with nuts and bolts, torque wrenches are an indispensable tool. These wrenches allow you to apply a precise amount of torque, which is important for ensuring that fasteners are tightened to the correct specifications.
Electric torque wrenches come in a range of sizes, from small and compact to large and heavy-duty. Some of the most common sizes include 1/4″, 3/8″, 1/2″, and 3/4″.

1/4-inch electric torque wrench

These are the smallest of all torque wrenches and feature a compact design, making them suitable for smaller nuts and bolts, such as those found in electronics or computers. The tool is relatively small and lightweight, allowing you to access tighter spaces with ease.

3/8-inch electric torque wrench

This size torque wrench is the second smallest and is the second most common torque due to its versatility. It provides a torque range of about 15 to 75 foot-pounds, making it ideal for multiple applications. The 3/8-inch torque wrench is widely used for socket sets and engine works, plug tightening.

1/2-inch electric torque wrench

This size of torque wrench is ideal for larger nuts and bolts, such as those used in heavy machinery or in engine mounts. With a torque range from 30 to 250 foot-pounds of torque, the tool provides enough power to securely lock the fasteners in place.

3/4 to 1-inch torque wrench

This final size is the largest of the common torque wrenches and is used in large applications. It is typically used in the automotive and industrial fields, providing more than 250 foot-pounds of torque.

Battery Life and Maintenance Tips for Electric Torque Wrenches

With proper care and maintenance, electric torque wrench can provide reliable and accurate results for years to come. Here are some tips for keeping your tool in good condition:

● Regularly check the batteries: Make sure that the batteries are clean and free from corrosion. If the batteries are old or corroded, they should be replaced.

● Keep the tool clean: Regularly clean and lubricate the tool to keep it in good working order.

● Monitor torque levels: Make sure that your torque wrench is set at the correct level for each application. Over-tightening can cause damage to both the tool and the nuts or bolts, so it's important to monitor the torque levels.

Why Is It Important to Use Electric Torque Wrench

Respecting the tightening torque is essential in all mechanical applications. Under tightening or over tightening can have serious consequences.

Take the example of tightening wheels in an automotive context.

Changing tires in a mechanical workshop is a common activity and it is important to do these operations quickly in order to increase profitability. Despite everything, the safety of motorists is paramount.

Over-tightening and under-tightening lug nuts can lead to potentially catastrophic wheel failure. Lug nuts that are too tight can be damaged, stretched and broken, especially when hitting potholes and bumps in the road. Lug nuts that are under-tightened can back out or come loose, causing premature wear and separation of the wheel from the hub. Uneven tightening of the nuts on the same wheel is also a problem: It can lead to broken nuts, movement, vibration and even the wheel coming off.

It is therefore essential to the tightness of the nuts using a electric torque wrench.

Specification of Electric Torque Wrench

Accuracy

This is a stall type tool with controlled torque capable of +/-5 percent accuracy and +/- 2 percent repeatability.

Power

Highest power-to-weight ratios of any pneumatic controlled bolting system.

Safety

This wrench features an economic pistol grip which reduces strain on operators and helps to prevent injury.

Why Use an Electric Torque Wrench

The electric torque wrench technology has created a crucial shift in torque tool application that continues to have a remarkable impact even today. The new electric torque wrench is characterized by increased run time and enhanced battery life.

Cordless
One of its crucial features is that it lacks a cord to the power source as it has a battery for power. This makes it ideal for usage in tight and narrow spaces, for instance, in pipeline plants. According to occupational health and safety administration, falls, slips, and trips account for more than one-third of injuries reported on job sites. One common culprit that triggers such falls is cords from torque tools. Therefore, electric torque wrenches free the workplace from slips and falls from torque tool cords.

Operational ease
Electric torque wrenches are easier to operate due to their lightweight nature and simple features. The tool's simplicity makes it ideal for all bolting solutions, whether at home or work. The tool's ease of use also reduces work-related fatigue that might arise from using the torque tool.

Enhanced safety
The electric torque wrench has enhanced safety due to features like the economic pistol grip, which helps reduce strain on operators and prevent injuries. Its lack of cords helps prevent slips and falls often witnessed on the job sites.

Less equipment
Unlike the corded torque tools, the electric torque wrench has less equipment for setup. You only need cartridges or batteries to power this particular torque wrench, meaning the workplace will not be packed with cords to a power source, and the work will be done equally fast.

Faster bolting
Electric torque wrenches are characterized by dual speed mode, making bolting incredibly easier and faster. Its torque mode allows you to tighten the bolts or nuts accurately as per the torque value, while its run-down mode offers speed in tightening the bolt.

What to Look for in an Electric Torque Wrench

When choosing your new electric torque wrench, it would be best to consider things. If you have other cordless tools, choose a electric torque wrench that uses the same battery pack and charger.

● Shapes and socket size
Electric torque wrenches come in two body styles. They are inline and pistol grip. The inline style of impact wrench looks like a large screwdriver. It has a grip behind the hammer and anvil. The pistol style is shaped like a handgun, and the grip rests underneath the motor. Electric torque wrenches also have a range of socket sizes. These sizes are designed to fit nuts and bolts of varied sizes. Use inline wrenches for tight spaces. If you plan to work on machinery, you must have an inline impact wrench.

Pistol impact wrenches are bulkier. But their grip is more ergonomic. It prevents strain on your hands and lets you work for a long time without fatigue. Some models have side handles. They allow you to use your weight for more leverage. They also help you keep a proper working angle. Suppose you do not need the excellent fit of an inline wrench. A pistol-style impact wrench is usually the best choice.

● Comfort
Jobs that need impact wrenches require using them for many tasks. They must be used for a long time. Ergonomic handle grips and anti-vibration measures help reduce strain. Also, pick a electric torque wrench with only the power needed for the job.

A smaller motor tends to mean fewer vibrations, lessening the physical strain.

● Durability
Look for design enhancements.

All-metal gear housing or high-strength plastic over molds. They help prevent damage from impacts or being dropped. Impact wrenches have brushless motors with fewer moving parts. So, their parts are less likely to break down, and maintenance is more straightforward.

● Torque
No matter the style or socket size, its torque is a critical feature to consider. When performing a electric torque wrench comparison, look at the maximum torque each one can create. Many top electric torque wrenches have multiple torque settings. This makes them much more versatile than ones with only one setting. Setting the torque down only to what is needed lets your battery work longer and prevents overtightening.
Compared to many other power tools, electric torque wrenches are quite specialized in what they do. Large nuts and bolts may not need to be removed or tightened as often as smaller screws. But when you need to adjust one, a electric torque wrench will save you time and energy. They can also loosen and tighten nuts and bolts more precisely than hand tools, such as sockets and ratchets. This is crucial when working with larger bolts or machinery.

Our Factory

Shandong Shengdingxin Precision Technology Co., Ltd. Isa professional fastening tool manufacturer in China with over 20 years experiences in this field. We have evolved from a small startup enterprise into a leader in China's fastening tool industry. With profound technical expertise, rigorous quality control, and professional service, we have earned widespread recognition in the market and customers' trust.

Our factory is located in the Jinan city, Shandong Province, occupying a vast area and equipped with modern production workshops and advanced manufacturing equipment. We have a strict production management system within the factory to ensure that every product meets the highest quality standards. Additionally, we have a team of highly skilled and experienced production team who could promise our quality and provide professional tech support.

Our factory has different product lines, such as electric& battery rebar connecting wrenches, right-angle torque wrenches, electric torque& shear wrenches, manual torque & shear wrenches, torque multipliers, and torque wrench calibrators. These products could meet the needs of different industries and customers.

FAQ

Q: Do electric torque wrenches need to be calibrated?

A: A torque wrench should be calibrated at least every 12 months or 5,000 usages – whichever takes place first. However, some users feel more confident with frequent calibrations, such as every 6 months or 2,000-3,000 usages.

Q: What voltage are electric torque wrenches?

A: Power tool batteries work using lithium-ion, nickel cadmium or nickel metal hydride technology. But all types of battery differ in terms of voltage (12, 14.4 or 18V) and capacity (1.2 or 3 Ah) which dictate the strength and life of your battery.

Q: What is the proper use of electric torque wrench?

A: Align the handle's top edge with the closest approximate torque marking. Hold the body of the wrench with your nondominant hand so it doesn't move around. Use your dominant hand to turn the handle clockwise to increase the torque or counterclockwise to lower it.

Q: What would I need electric torque wrench for?

A: It is the best tool if you are working with lug nuts or anywhere on the vehicle suspension. It is suitable for large bolts and nuts like those in engine mounts. Basically, any tightening task for both transmission and suspension, including motorcycles, would require a 1/2 -inch torque wrench.

Q: Do I need a 1/2 inch or 3/4 inch electric torque wrench?

A: The 1/2 inch will provide enough power and precision when working with regular-sized vehicles. The most powerful electric torque wrenches tend to be 3/4 or 1 inch, and are commonly used in industrial applications such as construction and large tyre applications.

Q: Is it worth getting an electric torque wrench?

A: Anytime you're dealing with tough nuts and bolts, like the 10mm bolt that's rusted out on a car, or the nuts on your tire, you'll want to bust out the electric torque wrench and use all that power, torque, and "impacts" of the tool to break it loose. Anytime you'd need a hand wrench can be a good time to use an electric torque wrench.

Q: Do mechanics use electric torque wrenches?

A: Cordless electric torque wrenches can withstand heavy-duty use, essential for mechanics working in demanding environments.

Q: How powerful of an electric torque wrench do I need?

A: For most automotive applications, an electric torque wrench with a torque of around 100 to 500 foot-pounds should suffice. However, you may need a tool with higher torque for heavy-duty tasks like removing rusted axle nut

Q: What is a good PSI for an electric torque wrench?

A: Most electric torque wrenches work well on a PSI of 90. This pressure level, however, in itself has a prerequisite of its own. To set your wrench to 90, first make sure that its compressor has a higher shut-off pressure, ideally 100 PSI. Remember, excessive pressure loss can result in faulty operation.

Q: What are the sizes of electric torque wrenches?

A: ● 1/4-inch electric torque wrench
These are the smallest of all torque wrenches and feature a compact design, making them suitable for smaller nuts and bolts, such as those found in electronics or computers. The tool is relatively small and lightweight, allowing you to access tighter spaces with ease.
● 3/8-inch electric torque wrench
This size torque wrench is the second smallest and is the second most common torque due to its versatility. It provides a torque range of about 15 to 75 foot-pounds, making it ideal for multiple applications. The 3/8-inch torque wrench is widely used for socket sets and engine works, plug tightening.
● 1/2-inch electric torque wrench
This size of torque wrench is ideal for larger nuts and bolts, such as those used in heavy machinery or in engine mounts. With a torque range from 30 to 250 foot-pounds of torque, the tool provides enough power to securely lock the fasteners in place.
● 3/4 to 1-inch torque wrench
This final size is the largest of the common torque wrenches and is used in large applications. It is typically used in the automotive and industrial fields, providing more than 250 foot-pounds of torque.

Q: What is the electric torque wrench used for?

A: Electric torque wrenches are made in various shapes and sizes and are used for gripping, fastening, turning, tightening and loosening things like pipes, pipe fittings, nuts and bolts. There are basically two major kinds of electric torque wrenches: Pipe wrenches used in plumbing for gripping round (cylindrical) things.

Q: What is the difference between an electric torque wrench and an air wrench?

A: Generally, cordless versions are better suited to lighter applications due to their lower maximum torques whereas air models provide higher levels of power and will be able to handle more demanding jobs such as loosening large bolts or other heavy-duty tasks.

Q: What does electric torque wrench do?

A: Power or electric torque wrenches are used for tightening or loosening nuts quickly. They are essentially small handheld electric or pneumatic motors that can rotate socket wrenches at high speed. They are equipped with a torque-limiting device that will stop the rotation of the socket wrench when a preset torque is reached.

Q: What is electric torque wrench?

A: An electric torque wrench is a type of wrench used to precisely apply a specific amount of torque to fasteners such as nuts and bolts. It sets and adjusts torque and drives the motor with electric energy to generate torque.
Electric torque wrenches are often seen in industries such as automobile maintenance, construction, manufacturing, aerospace, and steel structure installation. Because of its ability to precisely set the desired torque level, this helps maintain the structural integrity of the fastener and prevents the bolt from being over- or under-tightened. Therefore, it is very popular in these industries.

Q: Can an electric torque wrench ensure that bolts are tightened correctly?

A: The excellent accuracy of the electric torque wrench guarantees proper bolt tightening. By taking the necessary precautions, we can confidently avoid the risks associated with bolt joint failure, such as over-tightening or under-tightening. You won't have to waste time retightening bolts since you can be confident that you are applying the proper torque levels for each application the first time.

Q: What is the principle of electric torque wrench?

A: Leverage: The primary principle behind a wrench is leverage. It allows users to apply force at a distance from the fastener, thereby increasing the torque applied to the fastener and making it easier to turn. The longer the handle of the wrench, the greater the leverage and torque that can be applied.

Q: What is the application of electric torque wrench?

A: Electric torque wrenches are therefore used wherever strong rotational movements are required, such as: Tyre change: Loosening of wheel bolts and nuts. Metal construction: Screwing long threaded screws into metal. DIY projects: Screwing long screws into wood, e.g. in patio construction.

Q: What are the benefits of electric torque wrenches?

A: ● Power-assisted operation: Electric torque wrenches are powered by electricity, either through a corded or cordless design. This power assistance eliminates the need for manual exertion, reducing operator fatigue and increasing productivity.
● Precise torque control: Electric torque wrenches provide precise torque control through electronic mechanisms. They often feature digital displays that allow users to set and monitor the desired torque levels accurately. Some models also offer programmable settings for different torque requirements.
● Efficiency and speed: Electric torque wrenches offer faster and more efficient operation compared to manual wrenches. With their power-assisted mechanism, they can quickly tighten or loosen fasteners, reducing overall work time.
● Data recording and analysis: Many electric torque wrenches come equipped with data recording capabilities. They can capture torque values, time stamps, and other relevant data, allowing for accurate documentation and analysis of tightening processes.

Q: What is the most common electric torque wrench?

A: The most common size is 1/2 inch as it is suitable for most applications. The 1/2 inch will provide enough power and precision when working with regular-sized vehicles.

Q: How accurate are electric torque wrenches?

A: Most electric torque wrenches are with an accuracy of ±2-6%. If you dig a little deeper, the specs also provide a percentage called full-scale that is typically listed as 20-100% of full scale.

We're well-known as one of the leading electric torque wrench manufacturers and suppliers in China. Welcome to buy high quality electric torque wrench made in China here from our factory. For price consultation, contact us.

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