Manufacturing electronic, semiconductor, biotech and medical devices demand care and precision. Often a controlled environment is needed during the production process to limit the amount of dust, particles and other contaminants in the manufacturing area. A clean room environment controls the level of contamination. Eliminating any sub-micron airborne contamination is a controlled process. Clean rooms are used in many industries where small particles can adversely affect the manufacturing process.
There are nine different levels of clean room classifications by ISO (International Standards Organization). The clean room classifications are rated according to how much particulate of specific sizes exist per cubic meter. The lower the ISO classification, the cleaner the environment. The “cleanest” clean room is a class 1. A clean room environment involves many different elements like clean room garments, clean room HVAC systems, modular clean rooms and other sophisticated equipment.
With the demand for clean room manufacturing increasing, the need for torque tools that meet stringent cleanliness requirements has increased. Responding to this industry need, Mountz offers a selection of clean room torque screwdrivers. The hand tools are manufactured to comply with Class 100 Clean Room standards (ISO 2) and are polished and sealed with a PTFE impregnated anodized coating that creates a tool nearly 40 times as clean as “off the shelf” torque tools.
The reliable clean room screwdrivers have corrosion resistant external components and specially developed smooth skin seals to prevent the transportation of any contaminants into the clean room. The seal also allows the screwdrivers to be cleaned with isopropyl alcohol or other recommended clean room cleaning agents. Specially prepared micro-filtered grease is used to lubricate the internal mechanism.
Cam-Over Torque Screwdriver Technology
Built with a cam-over design, the accurate clean room torque screwdriver prevents a fastener or bolt from being under and over tightened. The design action of the cam-over torque screwdriver is such that when the tool reaches its preset torque value the mechanism disengages from the drive thus limiting the torque applied. Also, the thrust bearings ensure that the torque setting is independent of any end load applied by the operator.
These clean room drivers are ideal for fastening applications where over-torque conditions are not tolerated. As a quality control tool, the torque screwdriver allows any user to deliver the correct torque with confidence regardless of task and operator skill level.
Preset Torque Screwdriver
A preset torque screwdriver is similar to a person setting an alarm clock to signal the achievement of a selected time. The clean room torque screwdriver is pre-set to the required torque value of the application and then the tool signals the operator when torque is achieved. A preset torque screwdriver does not feature an external adjustment scale. These tools have internal adjustment mechanism for setting the torque value and must be preset using a torque tester. Preset screwdrivers are ideal for production applications where there is one torque setting required and you need to prevent incidental or operator tampering of the torque setting. However, if the torque specification changes or a new project requires a different torque setting, the preset torque screwdriver is still flexible enough that a new torque setting can be set internally using a torque analyzer.
The radial cam design of the Mountz preset torque screwdriver allows for a smooth cam action with minimal wear on the tool. This provides precision torque control and extends the operating life cycle of the tool before necessary routine tool maintenance is required. Designed and manufactured to meet or exceed the accuracy and repeatability requirements of ISO6789: 2003, Mountz offers various clean room screwdriver models that range from 5.7 ozf.in to 120 lbf.in.
Using a quality clean room torque screwdriver makes a safer world through accuracy and precision. Controlling torque is essential for companies to ensure their product’s quality, safety and reliability isn’t compromised. The failure of a three-cent fastener that isn’t properly tightened can lead to catastrophic or latent failures. Fasteners that are insufficiently fastened can vibrate loose and excessive torque can strip threaded fasteners.
Numerous manufacturing applications now require clean room torque tools. Mountz clean room screwdrivers are the only torque solution. For those stringent clean room requirements, quality cannot be compromised. Find a solution today.
