96
GENERAL
x
ROPES
x Choosing a wire rope x What are the main characteristics to define ?
TYPE OF WIRE ROPE
Load in free rotation Guided load Lifting steel cable High strength steel rope Non rotating + swivel (hook) Standard steel rope Stainless steel rope Pulling Non applicable
DYNEEMA
Textile rope High strength steel rope Standard steel rope Stainless steel rope
ROPE DIAMETER
The diameter of the wire rope is defined according to its minimum breaking load : Minimum breaking load = Winch capacity
X
safety coefficient .
The safety coefficient is determined as follows : Non rotating rope Standard steel rope Lifting The Machines Directive The Machines Directive 2006/42 /
EC
2006/42 /
EC
imposes a (minimum)
RECOMMENDS
coefficient of 5 a coefficient of 5 Pulling Non applicable Without particular recommendation by the Machines Directive 2006/42 /
EC
Generally a coefficient of 3 FreinFrein FreinFrein FreinFrein FreinFrein
CORRECT INCORRECT INCORRECT CORRECT
Frein Frein Frein Frein Frein Frein Frein Frein x Rope diameter measurement x Rope handling Correct measurement by means of a caliper :
CORRECT INCORRECT
Core (steel or textile) Metallic wire Central Strand The choice of a cable can be complex because of the many parameters to examine : Lifting or pulling , Guided or free load , Frequency of use of the winch , Distance – winding length – lifting , Environment : indoor , outdoor , harsh,… Use or non-use of idler pulley and their quantity .
Direction of wire-rope winding , grooving of the drum , etc...
Safety coefficient wire-rope according to the application .
Our sales representatives are available for advice .
HUCHEZ
winches are engineered to be equipped with ropes corresponding to these safety coefficients .
Wire