How the Cable Attaches
Machine Swage Terminal
Machine Swage (swaj): Fittings are attached to the cable by means of a cold forming press. The completed fitting has a smooth uniform appearance and will develop full cable strength. Swaging services can be performed by professional riggers and sling manufacturers.
Hand Crimp Terminal
Hand Crimp: Hand Crimp is available in 1/8” & 3/16” cable only. Fittings are attached to the cable using a simple hand tool (allows field installation). The completed fitting will provide approximately 65-70% of the 7×7 cable strength. We can provide the necessary tool.
Mechanical Terminal
Mechanical: Fittings are available for all cable sizes and are attached with simple hand tools. Mechanical fittings are more expensive than other means of attachment but develop full cable strength.
Cable Selection
Description of Wire Construction:
Generally 1/8”, 3/16”, or 1/4”, 1×19 stainless steel cable is chosen for most railing applications. 3/16” cable is the most popular size for general applications. 1/4” cable is for high traffic applications.
1 x 19 – Semi-rigid…used for straight runs
7 x 7 – Semi-flexible…used for short runs and decorative corners
7 x 19 – Flexible…used for decorative purposes
Stainless Steel Wire Rope
Breaking Strength
Suggested Railing Framework
Framework:
End posts and corners need to be made from the following minimums:
• Round Pipe 1-1/2” ID Schedule 80
• Square Tube 2” X 2” X 1/4” Wall
• Angle Iron 2” X 2” X 1/2”
• Flat Bar 2” X 1” (widest dimension should be inline with cable tension)
• Wood Post 6” X 6”
Please Note: Johnson Architectural Hardware does not make framework. Framework needs to be made by a steel fabricator.