How Does a Torque Multiplier Work

By Richard S. Clark | Last Updated: September 9, 2022

Torque multipliers are incredible tools that provide operators with the advantage of boosting gear ratio while decreasing input effort. The miracle tool is a must-have for both experts and DIY enthusiasts. However, it is critical to understand the many types of Torque Multipliers on the market and how to use them to their full potential. This how does a torque multiplier work guide will help ensure the bolts and nuts are tightened well.

how does a torque multiplier work

What is a Torque Multiplier?

A torque multiplier makes it easier for the user to loosen and tighten the nuts and bolts and other things that require torquing. Some of its benefits are safety, precision, efficiency, and an increase in productivity. To completely appreciate this tool, you must know how a torque multiplier works and its edge over other devices that provide torque.

The Various Types of Torque Multipliers and How Do They Work

Torque multipliers are classified into hydraulic torque multipliers, manual torque multipliers, and pneumatic torque multipliers. Before you choose one, you need to understand how they work to use it successfully. Hydraulic and pneumatic are electronic and require a power supply. Manual, as the name implies, can be operated manually anytime and anywhere.

Hydraulic Torque Multipliers

Microprocessors control the torque multiplication of hydraulic torque multipliers via an in-built controller. They work best in industrial settings where heavy-duty bolt fastening is a continual procedure. These tools keep their best usability after 1000 hours of usage or a yearly inspection, whichever comes first.

Pneumatic Torque Multipliers

Pneumatic Torque Multipliers employ pressurized air to provide the needed tightening or torque while unfastening bolts. They operate with a consistent and continuous circular action.

Manual Torque Multipliers

Manual torque multipliers are technical marvels utilized in both industrial and non-industrial settings. The hand-operated tool multiplies manual force to tighten or loosen industrial and non-industrial bolts. They are lightweight and portable, making them suitable for usage in any location. It is not enough to understand the functioning principles of the multipliers; it is also necessary to know how to work safely with each tool.

Steps on Using the Torque Multipliers

All three Torque Multipliers, regardless of kind, are intended to make the work of attaching and releasing nuts and bolts easier. Before operating any equipment, it is always a good idea to read the user’s manual thoroughly. Here’s a summary of how to use each Torque Multiplier.

How to Use a Hydraulic Torque Multiplier

  • Position the multiplier on a flat surface.
  • Place the reaction arm on the spline.
  • Fix the standard socket on the tool’s square drive.
  • Set the torque multiplier to the required level.
  • Attach the standard connector or socket to the nut or bolt.
  • When in use, the multiplier should be oriented vertically to avoid harm. As with the socket or connector, the support arm must be at the same level as both.
  • As soon as the pre-set torque is reached, the motor comes to a halt.

How to Use a Pneumatic Torque Multiplier

  • Attach the torque multiplier to the air supply
  • When in running mode, check the airflow using the tool.
  • Put together the socket, retaining pin, and the O ring.
  • Do not use the universal joint.
  • Avoid using extra-long socket extension.
  • Set torque checking specs based on nut size.
  • As the tool runs free, adjust the air pressure.
  • Maintain the tool’s stability with your hands, keeping it distant from the reaction point.
  • Secure the bolt/nut/screw until the tool stops completely. Make sure not to exceed the maximum air pressure as specified by the manufacturer.
  • Release air pressure until all of the air is gone.
  • Take out the air hose.

How to Use a Manual Torque Multiplier

  • Set the torque multiplier according to its model and manufacturer’s standards.
  • Put together the socket, retaining pin, and the O ring.
  • Never use an extra-long socket extension.
  • Make sure the wrench rotates in the proper direction before putting the multiplier.
  • Choose the right reaction point.
  • Tighten multiplier until it clicks, which indicates the tool is ready.
  • Do not use an anti-wind-up ratchet to strike.
  • Replace the wrench and load it to release the wind-up. Reverse the direction of travel and release the wind-up in a safe and controlled manner.

Torque multipliers are intended to reduce the labor load. However, it is always prudent to use caution when using any tool.

Why Should You Utilize Torque Multipliers?

Torque Multipliers have transformed how industrial operators and even do-it-yourself enthusiasts operate with heavy-duty or simple nuts and bolts. Torque is calculated as the product of applied force and applied distance. By extending the reach between the joint and the force, the Torque Multiplier minimizes the force load. Torque Multipliers play essential roles in lowering workload, whether they are used to secure or loosen bolts. While manual torque wrenches can save manual effort, hydraulic and pneumatic torque wrenches have the added benefit of completely automating the work.

Maintenance Tips of Torque Multiplier

Apply proper maintenance on your torque multiplier to ensure it will function well and provide the required effect. Follow the tips below on how you can keep your tool work at its best all the time:

  • Clean your tool regularly.
  • Check the tool for any damage or breakage so that you can attend to it right away. Inspect the gear ratio teeth for wear down. It is responsible for the output torque.
  • In storing your tool, do not forget to keep it in its original case, designed mainly to protect it from dirt buildup, rust, drop, or other damage.
  • Let your multiplier be calibrated by a professional provider annually. Some may prefer their multiplier to be calibrated frequently. This will ensure the tool’s tolerance to keep the operators safe when using the device.

Frequently Asked Questions – (FAQ)

a) How do you work out the multiplier of a decimal?

Step #1 Multiply the force applied on the first gear by the radius of the first gear. For example, if a force of 4,000 newtons applies on a gear with a radius of 0.15 meters, 4,000 x 0.15 = 600. The gear has a torque of 600-newton meters.

Step #2 Divide the radius of the second gear by the radius of the first gear. If the second gear, for example, has a radius of 0.3 meters: 0.3 / 0.15 = 2. The gear ratio of the system is 2-to-1.
Step #3 Multiply the gear ratio by the computed input torque in Step 1: 2 x 600 = 1,200

b) How do you explain the multiplier effect?

Torque multipliers boost speed and production since they are faster and less expensive than hydraulic wrenches. These torque multipliers are designed to provide smooth torque control with “continuous” spinning, eliminating the difficult setup time and lengthy ratcheting procedure of hydraulic wrenches.

c) What is torque multiplication?

Torque multiplication is the process of increasing engine torque in an automatic transmission by using a torque converter. Torque multiplication diminishes rapidly until it reaches a ratio of 1:1. The torque multiplication ratio of a typical torque converter will be around 2.5:1.

d) Is the multiplier effect good?

Yes, it makes the job easier and faster. Hand torque multipliers are extremely useful in field service applications. Manual torque multipliers can tighten bolts at sea, down mines, roads, up towers, and anywhere else. Service technicians need to travel because they don’t require an external power supply.

Final Thoughts

Torque multipliers are useful and essential tools in many heavy industries. The torque multiplier you need for your operation is determined by the nature of the products you’re servicing or constructing. Once you know what type of multiplier you require, you may compare specifications, reputation, cost, and other aspects to select the best provider. We hope this guide will help you in using the tool effectively. If you want to share your thoughts about torque multiplier, you can do by commenting below.

1 thought on “How Does a Torque Multiplier Work”

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