CN - Primary Replacement Nut

The CN Series Stretch-to-Load ClampNut is the modern day replacement of Multi-Jack-Screw Nuts and Hydraulic Bolt Tensioners for a hands-free safe bolt load accuracy within 7%

CN Series Clamp Overview

CN Series Clamp

The CN series clamp line covers a wide range of sizes and applications. The CN Series clamp was originally specified to replace fasteners that were operated with hydraulic bolt tensioners. The through bolt design of the CN Series clamp makes them an appropriate choice for applications with high stud extensions. The outside diameter of a CN Series clamp is approximately the cross corner dimension of a standard heavy hex nut.

CN Series clamps are typically specified for applications with minimal radial constraints. The relatively thick outer sleeve of a CN Series clamp minimizes stresses and allows them to handle high loads at elevated temperatures.


CN Series Clamp DiagramThe CN Series clamp is composed of three components:

  • Outer sleeve
  • Inner sleeve
  • Washer

As the outer sleeve turns (blue arrow), the inner sleeve moves upwards (red arrow). The washer spline rotationally couples the inner sleeve with the washer preventing the inner sleeve from turning while providing a solid reaction point for turning the outer sleeve.


FEATURES

  • The CN Series ClampNut is used in conjunction with a coaxial action/reaction pneumatic or hydraulic torque tool.
  • Through bolt design allows fit on any stud projection
  • Robust outer sleeve minimizes stresses
  • Castellated outer sleeve - eliminates need for oversize socket drive
    CN Series Clamp
    CN Series clamp application powered by J-Gun tool.

  • Standard drives available for all applicable tools
  • Low, Standard, Medium & High temperature ratings available
  • All thread forms available