Wire Rope

Lake Cable & Rigging Hardware Co.,Ltd.

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Steel Wire Rope, Wire Rope, Steel Cable

	Aircraft Wire Rope, Aircraft Cabl...
	Stainless Steel Wire Rope, Stainl...
	Galvanized & Ungalvanized Round S...
	Nylon & PVC Covered Wire Rope
	Compound Rope For Fishing
	Steel Strand
	Torsion Proof Braided Wire Rope

Wire Rope Fitting, Rigging Hardware

	Shackle
	Turnbuckle
	Thimble
	Wire Rope Clips
	Eye bolt,Eye nut
	Hook

Steel Cable Assemblies

Chain( carton steel & stainless steel)

Clamp( carton steel & stainless steel)

GENERAL INFORMATION OF WIRE ROPE

1. WHAT IS A WIRE ROPE

2. TYPE OF LAY
A. RIGHT HAND REGULAR LAY(RHRL)
B. LEFT HAND REGULAR LAY(LHRL)
C. RIGHT HAND LANG’S LAY(RHLL)
D. LEFT HAND LANG’S LAY(LHLL)

Right Hand Regular Lay

Left Hand Regular Lay

Right Hand Lang's Lay

left Hand Lang's Lay

3. HOW TO DETERMINE THE PRACTICAL DIAMETER
Measurements are taken at two points at least one meter apart and two diameters are measured at 90° one from the other. The average of the four values thus obtained is the practical diameter. Usually the practical diameter is taken from a sample of straight rope not subjected to traction. In special cases when the tolerance is less than 5% of the nominal diameter, the practical diameter is taken from a sample of rope subjected to a stress equal to 5% of the minimum guaranteed breaking strength.
The correct diameter is the greatest diameter of the rope or strand.

Method of measuring diameter

Always measure the larger dimension between the outer limits of the strands	Do not measure the smaller dimension across the “flats” of the strands

4. LUBRICATION
Wire ropes are lubricated as a protection against oxidization and to reduce friction between wires and strands. Fiber cores are impregnated for preservation purposes. During the stranding and roping operations, all wires forming the strand and all strands forming the rope are lubricated. The type of lubrication varies according to the application for the rope and the type of plant for which it is intended. During the working life of the rope, lubrication should be carried out periodically with good quality products compatible with those used during manufacture and which we shall be pleased to indicate upon request.
For protection of wire rope against corrosion and frictional wear, wire ropes have various kinds of lubrications as below.

Type of Lubrication	Lubricating Method		Suitable On wire rope	Appearance (Type of Grease)	Note
No-lube	No Lubrication		Galv Strand Galv W/R Stainless A/C		No Grease
Dry	Closing	No Lubrication	Galv A/C Brake Strand Galv W/R	Transparent (Dry)	A rust inhibiting Oil is used to prevent corrosion during transit and storage. Non-tacky to hand touch
	Stranding	Min. possible application Very tight wipe as possible
	Core	Little heavier than on strand. Loose wipe
A-2	Closing	No Lubrication	Galv/Ungalv Wire Rope	Yellowish-Brown (Petro-Chem grease)	For general application of Galvanized Wire Rope. Slightly oily to the touch
	Stranding	Light application by dropping method. Internal lubrication is accomplished. Loose wipe
	Core	Heavier than on Strand No wipe
A-3	Closing	No Lubrication	Galv/Ungalv Wire Rope	Yellowish-Brown (Petro-Chem grease)	For general application of Ungalvanized Wire Rope. Lightly tacky to hand touch
	Stranding	Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant
	Core	Heavy application No wipe
B	Closing	No Lubrication	Ungalv Wire Rope	Black (Asphaltum grease)	For special usage and long term storage where maximum protection against corrosion
	Stranding	Light application by dropping method. Internal lubrication is accomplished Loose wipe
	Core	Heavier than on Strand Loose wipe
C	Closing	No Lubrication	Ungalv Wire Rope	Black (Asphaltum grease)	Lubrication sets up to a medium hard consistency. Ideal for oilfield, construction equipment and logging use. Lightly tacky to hand touch
	Stranding	Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant
	Core	Heavy application No wipe
D	Closing	Heavy application No wipe after the “bath” application	Ungalv Wire Rope	Black (Asphaltum grease)	Wire rope valley is filled with lubrication. For special purpose lubrication of Ungalv Wire rope where maximum protection against corrosion is desired.
	Stranding	Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant
	Core	Heavy application No wipe
Non-Tacky C & D	A special Non-Tacky grease is applied by the same method as in the above C and D type		Ungalv Wire Rope	Balck (Solid Asphaltum grease)	For special purpose lubrication to meet very hard consistency under tropical climate. No wet. No drips. Dry to hand touch

5. WIRE ROPE CORES
A. Independent Wire Rope Cores: IWRC
This is separate wire rope used as a core in the main wire rope.
B. Independent Wire Strand Core: IWSC
A single strand can be used as the core in a wire rope. The wire strand core may be of the same construction as the outer strands, or of different construction. A 6-strand rope with a wire strand core of a different construction from that of the main strands is call a 6-strand rope with WSC. If the core is of the same construction, the rope is usually called a 7-strand rope-for example, 7x7 or 7x19. Wire strand cores are limited to standing ropes, and small diameter running ropes.
C. Fiber Core: FC
These cores are fiber ropes, made from either natural fibers such as manila, sisal, jute, or cotton, or synthetic fibers such as polypropylene or polyethylene.

6. SAFETY FACTORS
Type of Service Safety Factor
Miscellaneous Hoisting Equipment------------------------------- 5.0
Haulage Ropes---------------------------------------------------------6.0
Overhead and Gantry Cranes--------------------------------------6.0
Jib and Pillar Cranes--------------------------------------------------6.0
Derricks-------------------------------------------------------------------6.0
Small Electric and Air Hoists----------------------------------------7.0
Hot Ladle Cranes-------------------------------------------------------8.0
Track Cables-------------------------------------------------------------3.2
Guys------------------------------------------------------------------------3.5
Mine Shafts---------------------------------------------------------------8.0 for depths to 500ft.
7.0 for depths 500-1000ft.
6.0 for depths 1000-2000ft.
5.0 for depths 2000-3000ft.
4.0 for depths 3000ft.and more

7. HOW TO ORDER WIRE ROPE
If the required rope has not been ordered before, please state the following data:
A. Construction and type of core:( ex.6x37+IWRC)
B. Ungalvanized or galvanized:( ex.Galvanized)
C. Diameter or circumference:( ex.25mm)
D. Preformed or non-preformed.:( ex.Preformed)
E. Lubrication:( ex.A-3 type)
F. Tensile strength:( ex.180Kgs/mm2)
G. Specification:( ex.DIN,BS……)
H. Packing:( ex.Coil, Wooden reel……)
I. Usage:( ex.Fishing,Haul-back line……)