Wires are laid hellically above
a center to form a strand, which is further laid hellically
over a core to form a rope. The chief component parts of a
stranded wire rope are
1. The WIRES or WIRES & FIBER
forming the strand.
2. The STRANDS laid uniformly over the core to form the ROPE
3. The CORE which provides the foundation on which the ROPE
SIZE of Rope
It is the diameter of wire rope
measured over crowns of the strand. the above diameter is
the NOMINAL diameter of the circle enclosing all the outer
strands of the rope.
The actual diameter of the wire rope shall
be the nominal diameter associated with manufacturing tolerance
as specified in the relevant standards whereby the maximum
and the minimum diameters permissible are quoted with the
help of (+) & (-) percentage of the rope diameter.
Diameter is usually expressed in 'millimeters
(mm)' however some standards still follow 'inch' units.Examples
of the rope size- 10 mm dia.,1/2 inch dia, 1 inch circumference
Wire Rope Construction
The construction of the rope
indicates the method of arrangement of wires in a rope. The
reliable and efficient behavior of a wire rope, and its durability
under given set of conditions are largely governed by the
following constructional features of the rope
1. The grade of steel of the rope
2. The number and arrangement of the wires within the strands.
3. The number and arrangement of strands in the rope.
4. The type, direction and length of rope and strand lays.
5. The method of fabrication in the manufacture of rope.
The following groups can be referred during
the selection of wire rope.
6 X 7 Group (Coarse laid Group)
6 X 19 Group (Flexible Rope Group)
6 X 37 Group (Extra Flexible Group)
8 X 19 Group (Round Strand Rope Group)
Marine Group Rope Constructions
Flattened Strand Rope Group Construction
Non Rotating Rope Group
Endurance Dyform Special rope
CAC's Orion wire ropes conforming
to various specifications like -
|Indian Standard (BIS)
British Standard (BS)
German Standard (DIN)
|Russian Standard (Gost)
Japanese Standard (JIS)
American Petroleum Institute (API)
International Standard (ISO)
We are also supplying wire ropes certified by competent authority
as declared by -
SGS Yarsley International
Certification Services Ltd. , U.K. , to cover requirements
BIS to cover manufacture of Engineering ropes to IS 2266/89.
Directorate General Factory Advice Service and Labour Institutes
Directorate of Industrial Health And Safety.
Orion Ropes are licensed to
mark products with "ISI" mark granted by The Bureau
of Indian Standards.