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 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 torque 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.

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To maintain consistent accuracy, torque wrenches must be checked periodically for wear or defective parts. A properly structured preventive maintenance program optimizes tool performance and reduces unexpected downtime, thereby saving time and money.

The more often a torque wrench is used the faster it will wear or go out of calibration. Monitoring the number of cycles per day or total hours that a tool is used is the most accurate way to establish proper maintenance intervals. It is accepted that torque wrenches should be serviced in line with manufacturers recommendations or no longer than 100,000 cycles, or when a visual inspection reveals old or dry grease, parts that show signs of excessive wear, loose or unstable components.

The ratchet of a wrench should be inspected for wear, cleaned and lubricated. Periodically verify that ratchet screws are tight and that the ratchet spins freely when turned. The wrench handle should not be loose and it should be free of corrosion or lubricants when used. Failure to inspect, lubricate, adjust, and replace worn parts on wrenches can lead to premature failure.

Protect your wrench from dust, grime, chemicals and other hazards by storing the wrench properly in a case or other storage device and keep it in dry and clean place. Clean your wrench on the outside with a dry cloth. External cleaning fluid or other chemical solvents can corrode the internal lubrication of the tool, causing premature failure. If it is necessary to disassemble the wrench follow properly documented instructions provided by the manufacturer or send to a competent technician.

For further information on torque wrench maintenance

The Weld Stud Test Tool by Mountz, Inc. is designed for testing the integrity of weld studs. For assembly applications that utilize sheet metal or other metal products during the manufacturing of metal enclosures, appliances and automotive parts, weld studs are a component that may be used. Unfortunately, manufacturers didn’t have a quality control tool that would allow them to test and verify if a weld stud was stable and could not simply break off. The failure of a weld stud that isn’t properly welded can lead to failures further along the assembly process or latent failures with a weld stud breaking in finished products, which costs manufacturers money and time with warranties and rework.

The Weld Stud Test Tool is designed for use during the production of sheet metal products to test the strength and integrity of welds used to attach threaded studs to the sheet metal. A simple mechanical test with the Weld Stud Test Tool provides manufacturers with easy test results. It’s a low cost tool that provides a successful solution to eliminate weld studs breaking in the field or along the assembly process.

A simple way to test the shear torque of weld studs is apply a straight pull of the Weld Stud Test Tool (no side load). When the wrench breaks-over and the weld stud is still attached then it passed. If the weld stud breaks off – then it failed.

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In nearly every heavy industrial application, turning threaded fasteners, nuts and bolts is generally viewed by two criteria: (1) The need to fasten tightly enough to prevent movement of parts and achieve a good seal without exceeding the fastener’s elasticity level. (2) Successful removal of fasteners after long periods of environmental exposure to harsh conditions.

Selecting the right heavy torque tool for the job is crucial. When it comes to turning nuts and bolts, especially stubborn corroded ones, what could be more basic than power?

You need controlled power. That is, “controlled torque,” which provides You need controlled power. That is, “controlled torque,” which provides smooth torque, with continuous rotation. Other wise, you could outdo yourself and strip threads, break bolt heads or even cause personal injury.

Technicians are finding that the best solution for applying high torque today is with a complete range of torque control products, including manual and powered torque wrenches and torque multipliers. Mountz torque multipliers provide precision torque control, making it easier and often safer to assemble and service-threaded fasteners while reducing application problems and tool costs.

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