/EIN News/ With the growing trend of clean room manufacturing, the need for torque tools that meet stringent cleanliness requirements has increased. Responding to this industry need, Mountz Inc., offers its CRS Series of Clean Room Torque Screwdrivers. The hand tools are manufactured to comply with Class 100 Clean Room standards 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.
Built with a cam-over design, the accurate Clean Room Screwdrivers prevent a fastener or bolt from being over-torqued. The design action of the cam-over screwdrivers is such that when the tool reaches its pre-set torque value the mechanism disengages from the drive thus limiting the torque applied. Inside the screwdriver, a precision radial ball clutch “slips-free” when the preset torque is reached preventing over-torquing. Also, the thrust bearings insure that the torque setting is independent of any end load applied by the operator.
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 0.7 ozf.in to 120 lbf.in. Featuring a tamper-proof internal adjustment, the screwdrivers have no external adjustment scale and must be preset using a torque analyzer.
Controlling torque is quintessential 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. The cam-over philosophy of each Mountz torque screwdriver prevents operators from influencing the torque output when tightening fasteners.