Torque measurement is utilized in three areas of assembly. Controlling torque is quintessential for companies to ensure their product’s quality, safety and reliability isn’t compromised.

Prior to Assembly
Torque testing equipment, like electronic torque tester and  torque sensors are used before assembly process for tool setup or conducting tool capability studies. For tool setup, the tool crib will want to set the torque tool according the torque specification required for the application. For tool capability studies, technicians need to ensure that the torque tool can provide the necessary torque and repeatability that’s required for a potential application.

The equipment used for this torque testing would be:
- Tabletop torque testers with built-in transducers
- Torque analyzer that connects with either stationary torque sensors or rotary torque sensors
- Joint simulators like run down adapters

During  Assembly
For air and electric assembly tools once the torque tool is being used in the production area, many manufacturers like to audit the tool and verify the actual torque being applied to the application or if the tool is starting to fall out of specification. The Rotary Torque Sensor is the ideal torque-auditing tool for testing the actual torque being applied on the assembly application. By connecting a rotary torque sensor between an electric or pneumatic tool and assembly application, you can monitor the torque being applied from the tool to fastener or bolt. This type of torque reading is called a dynamic torque reading. The rotary sensor is connected to torque analyzer, which records and stores the data.

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Designed for high production environments, the E-DRIV NF-Series feature a high performance brushless motor design that provides durability and reduces the standard maintenance costs for electric screwdrivers. Additionally, costly mechanical micro switches have been eliminated in the NF series in favor of non-contact magnetic sensors.

In addition to lower maintenance costs, the NF tool is ESD certified, ensuring less than 1 Ohm at the bit tip.  ESD management in power tools ensures product quality, cost savings and a reduction in overall ESD failures.  Manufacturing engineers involved with microelectronic products are aware of the importance of controlling Electrostatic Discharge (ESD) failures.  Lapses in preventing the occurrence of electrostatic discharge can affect production yields, manufacturing costs, product quality, product reliability, reputation and profitability.

Static damage to electronic components can be realized as catastrophic or latent failures. Catastrophic failures are easier to detect and resolve. With this type of failure the part is “dead” and will not function. It may be costly to repair but is easy to manage. With latent failures the problem is much worse as the failure may not be detected in testing but is a “time bomb” waiting to happen. Since this product will get into the field and cause intermittent problems or failure in the field, it can be a much more costly problem.

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Improper torque of high-pressure vessels can be attributed to safety incidents that cause financial loss, loss of property and even loss of life. The more volatile and dangerous the substance the more critical it is to take precautions to ensure flanges and bolts have been properly torqued and most importantly, properly audited.

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