6 x 7 Classification
6 x 7 Classification Wire Ropes give long service in operating conditions where ropes are dragged along the ground or over rollers. Larger sheaves and drums (than those used for more flexible constructions) are required to avoid breakage from fatigue. 6 x 7 Classification Ropes contain 6 strands with 3 through 14 wires, no more than 9 of which are outside wires.
In a 6 x 7 rope, the wires are larger than those of other constructions of the same diameter. Wires of a 6 x 7 are approximately twice the diameter of outer wires of a 6 x 25 FW rope. The large size of the outer wire gives the class excellent abrasion resistance—at great sacrifice of bendability and resistance to fatigue. The standard 6 x 7 rope construction is made with fiber core and right regular lay.
Characteristics 6 x 7 Rope
Excellent abrasion resistance; less bending fatigue resistance.
Dragging and haulage in mines, inclined planes and tramways, sand lines.
Any warranty, as to quality or performance of fitness for use of wire rope products, is always premised on the condition that the published strengths apply only to new, unused rope, that the mechanical equipment on which such products are used is properly designed and maintained, that such products are properly stored, handled, used and maintained, and properly inspected on a regular basis during the period of use.
Seller shall not be liable under any circumstances for consequential or incidental damages or secondary charges including but not limited to personal injury, labor costs, a loss of profits resulting from the use of said products or from said products being incorporated in or becoming a component of any other product.