Free Newsletter
Register for our Free Newsletters
Airport, Border and Port Safety and Security
Left Nav Sep
Left Nav Sep
Civil Aircraft
Left Nav Sep
Civil Airlines, Airports and Services
Left Nav Sep
Communications and Navigation
Left Nav Sep
Education, Training and Professional Services
Left Nav Sep
Manufacturing and Materials
Left Nav Sep
Military and Defence Facilities
Left Nav Sep
Military Aviation
Left Nav Sep
Military Vehicles
Left Nav Sep
Naval Systems
Left Nav Sep
Personal Equipment
Left Nav Sep
Software and IT Services
Left Nav Sep
Space and Satellite
Left Nav Sep
Weapons, Ammunition and Explosives
Left Nav Sep
View All
Other Carouselweb publications
Carousel Web
Defense File Logo
New Material Logo
Pro Health Service Zone
Pro Manufacturing Zone
Prosecurity Zone
Web Lec Logo
Pro Engineering Zone

Crane Electronics - Prowrench Opta Range with Angle Measurement

Crane Electronics : 29 June, 2007  (Company News)
New sizes of Crane Electronics' ProWrench Opta digital torque wrenches have been introduced. In addition to the 25, 75 and 180Nm, the high end tools are now available in 300, 340, 750 and 1500 Nm versions. This is in direct response to the growing need by quality departments for accurate torque/angle measurement and paperless documentation. With three measurement modes peak torque, move-on torque and yield, ProWrench Opta has an optional angle measurement function.
The angle function is 'critical' as it is not sufficient to look at the peak torque value to ensure the correct fastening of joints. The clamp load of the fastening process can be influenced by the individual operator, contamination of the thread and friction of the joint. Hence the torque reading on its own is not enough to determine the integrity of the joint. For critical joints additional information of the joint such as angle measurement is essential.

The same applies for auditing already bolted joints by 'move-on' or 'break-away' tests. The 'move-on' or audit test works by setting an audit angle, for example, two degrees. When the digital wrench detects that the joint has moved these two degrees, it records and displays that audit value. To aid the operator, the wrench also gives a visual and audible indication when this audit angle has been reached. To check the operator's performance in measuring the 'move-on' torque, the wrench will also display for comparison the final torque achieved. A small difference between the audit and final torque value indicates that the operator has not over-torqued the joint.

Operator acceptance and correct tightening is ensured by the clean user interface. Torque and angle status, e.g. high, ok, low, is clearly indicated by selectable and audible alarms. An extremely useful feature is the graphical representation of applied torque and angle in 'real-time'. With the help of a bar graph, the operator can see how much torque or angle he is applying and whether the correct level of torque or angle has been reached. Again, upper and lower limits can be set for this feature. It is also possible to display the bar graphs of either torque or angle at the same time as the numerical values.

Crane's digital wrenches are point of load insensitive. This means that the tightening process can be done in a time efficient manner without worrying how the operator is holding the wrench. In particular with the angle function correct measurement is assured even if the operator has to reposition the wrench or use it in ratchet mode. The electronic wrench can be supplied either as a dovetail (Sturtevant Richmont) or DIN standard version.

Setting the torque parameters can be done from a PC or directly on the wrench. Through password protection there is no danger of operator interference or manipulation. The wrench has a large enough memory function to cover most shifts and data load to a PC or network is easy.

Bookmark and Share
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
   © 2012
Netgains Logo