What is an electric torque wrench?

An electric torque wrench is a wrench powered by electricity and is a bolting tool used to tighten bolts. It is mainly used in the steel structure installation industry, especially high-strength bolts for installing steel structures. When high-strength bolts are used to connect the joints of the steel structure, bolt groups are usually used.

Advantages of electric torque wrenches

220V/380V 50Hz AC or high-capacity battery power supply. No need for an external pump station or pipelines.

The intelligent torque control system with a microcontroller as the core has a fault self-checking function and power-down memory function, with an accuracy of ±5%.

Precision planetary structure, high torque/weight ratio, low noise, strong and durable, no worries about leakage, and easy maintenance.

Two-speed design, the wrench can switch between high and low speeds. Two torque setting modes, directly set the torque value or the system recommends the torque value based on the bolt parameters.

The overall reaction arm has much higher strength and lifespan than castings and welding parts and can be adjusted 360 degrees.

Ergonomic pistol handle and rubber buffer reduce vibration by 50%.

The power handle is freely connected to the driving component and can rotate relative to each other.

It rotates continuously without impact and automatically stops when reaching the set torque value. The efficiency is much higher than that of intermittent drive hydraulic wrenches.

Double overload protection, electronic anti-over-torque system, and torque overload clutch effectively protect transmission components.

Human-machine interface, LCD screen directly displays the torque value, no need to check the “torque comparison table” for analog conversion.

What is a Pneumatic Torque Wrench?

A pneumatic torque wrench, also known as a ratchet wrench, is a tool that provides high torque output. It allows an object with a certain mass to rotate at an accelerated rate, and then hit the output shaft instantly, thereby obtaining a relatively large torque output. Compressed air is its main source of power.

Pneumatic wrenches are widely used in automobile maintenance, heavy equipment maintenance, product assembly (often referred to as “pulse tools”, designed for precise torque output), major construction projects, installation of wire threaded inserts, high torque output, etc.

Pneumatic wrenches are available in every standard ratchet socket drive size, from small 1/4″ drive tools for small assembly and disassembly to 3.5″. Pneumatic wrenches are generally not suitable for the fastening of ceramic or plastic mounting parts.

Advantages of pneumatic torque wrenches

The operation is very quiet, the noise is less than 85dB, and there is no impact at all. This reduces damage to the tool, socket and locked objects, making the person using the tool more comfortable, reducing fatigue and improving safety.

The maximum torque of the pneumatic torque wrench can reach 300,000Nm, providing precise torque control.

It is equipped with sensors and solenoid valve switches, and the repeatability can reach ±2%. This ensures accuracy and stability of work.

Pneumatic torque wrench has the characteristics of small size, light weight and high output power per unit weight, so it is very suitable for occasions requiring large torque output.

The reaction force of the pneumatic torque wrench is very small, the environmental pollution is also very small, and the cost is low.

Pneumatic wrench or electric wrench, which has a higher output torque?

When using a wrench, you need to consider the torque of the wrench. If the torque is insufficient, it cannot be used for some heavy equipment. So, the pneumatic wrench or the electric wrench, which has a larger output torque?

The torque of the pneumatic wrench is mainly related to the air intake and can be adjusted. The torque of the electric wrench is mainly related to its power. TorcStark’s electric torque wrenches have an output range between 100 – 12000 Nm and an accuracy of around ±5%. The torque output range of our pneumatic torque wrenches is between 300Nm – and 13500Nm. In theory, the maximum torque value of the pneumatic torque wrench can reach 300,000Nm. If you need a wrench with extra large torque, please contact us for customization.

What is the difference between an air wrench and an electric wrench?

Traditional wrenches are manual. With the development of technology, pneumatic wrenches and electric wrenches have gradually become available. Both pneumatic wrenches and electric wrenches are wrenches, but there are certain differences between the two. The main differences are:

1. Different power sources: the pneumatic wrench uses the compressed air provided by the air compressor as the power source, and the electric wrench uses the electricity as the power source.

2. There are also some differences in the principles of the two types of wrenches: in terms of reciprocating operation, the pneumatic wrench adopts piston motion, while the electric wrench is realized by cam conversion.

3. Different use: Compared with the electric wrench, the pneumatic wrench has no heating and overload faults, and is more suitable for long-term work without heating. Electric wrenches are relatively heavy and have requirements on the working environment, so they are not suitable for long-term work.

4. In terms of economy, the pneumatic torque wrench needs to be equipped with air pressure pipeline equipment during the initial investment, but if it is used for a long time, it will cost less in energy consumption and tool maintenance. The initial investment of the electric wrench is low, but if it is used for a long time, the energy consumption is high, and the cost of tool maintenance and replacement is also high.

5 An pneumatic wrench is primarily a tool that provides high torque output with minimal consumption. It accelerates the rotation of an object with a certain mass through a continuous power source, and then hits the output shaft instantly, so that a relatively large torque output can be obtained.

Pneumatic torque wrench or electric torque wrench, which one is more suitable for you?

Both the pneumatic torque wrench and the electric torque wrench have the advantages of high efficiency, time-saving and labor-saving, and are mainly used for auto repair, heavy equipment maintenance, product assembly, major construction projects, installation of wire threaded inserts, and any other projects that require high torque output.

Therefore, it is necessary to decide which type of wrench to use according to your needs and the actual situation.

1. The advantage of the pneumatic wrench is that the speed adjustment and output power adjustment are simple, and it can provide more choices in the speed range. It has large torque, no heating and overload failure, and can work in various bad or harsh environments.

2. The advantages of electric wrenches are high accuracy, long service life, safety and reliability, low price and low noise.

In addition, in the harsh working environment of flammable, explosive, dusty, wet and impact, the pneumatic torque wrench can well meet the demand. If there is a stable power supply, using an electric torque wrench is the best choice.

TorcStark’s latest PNX series pneumatic torque wrench and BM-S series rechargeable electric torque wrench have the advantages of high precision and high work efficiency. If you are looking for a stable and reliable torque wrench supplier, please contact us. TorcStark provides customized services for special working conditions and a one-year warranty.