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Symmetrical Torsion Antivibration Hammer

    The Symmetrical Torsion Antivibration Hammer, also known as the FD-type anti-vibration hammer, is a device used to suppress vibrations in transmission lines. It’s designed to perform optimally under different operating conditions.


  • Product Details
Cataiog No.Weight
(kg)
Suitable Conductor
Steel cored
aluminium
stranded wire
aluminium
wire
Galvanizeds
teel strand
Aluminium CI
steel wire
FDN-1/G1.7LGJ-35/6LJ-35GJ-35GLB-35
FDN-2/G1.7LGJ-50/8LJ-50GJ-50GLB-50
GJ-55GLB-55
LGJ-50/30LJ-70GJ-70GLB-70
LGJ-70/10GJ-80GLB-80
FDN-3/G2LGJ-70/40LJ-95GJ-95
GJ-100
GLB-95
GLB-100
LGJ-95/15
LGJ-95/20
FDN-1/22.5LGJ-95/55LJ-120
LJ-150
GJ-120
GJ-150
GLB-120
GLB-150
LGJ-120/7
LGJ-120/20
LGJ-120/25
LGJ-150/8
FDN-2/33.4LGJ-120/70LJ-185GJ-185GLB-185
LGJ-150/20
LGJ-150/25
LGJ-150/35
LGJ-185/10
FDN-3/44.2LGJ-185/25LJ-210
LJ-240


LGJ-185/30
LGJ-185/45
LGJ-210/10
LGJ-210/25
LGJ-210/35LJ-300

LGJ-210/50
LGJ-240/30
LGJ-240/40
LGJ-240/55
FDN-4/55.1LGJ-300/15


LGJ-300/20
LGJ-300/25
LGJ-300/40
LGJ-300/50
LGJ-300/70
LGJ-400/20LJ-400

LGJ-400/25
LGJ-400/35
LGJ-400/50
LGJ-400/65
FDN-4/65.4LGJ-400/95LJ-500

LGJ-500/35
LGJ-500/45
LGJ-500/65
LGJ-630/45LJ-630

LGJ-630/55
LGJ-630/80


1.Structure:The structure of the anti-vibration hammer is usually divided into three parts: the hammer head, the steel strand, and the wire clamp. When the transmission line vibrates, the wire clamp vibrates with it, driving the vibration of the hammer head. This causes the steel strand to bend, absorbing the energy of vibration through the material energy loss of the steel strand and the friction between the wire strands.


2.Advantages:The FD-type anti-vibration hammer, with its parameter optimization, has an inherent frequency nearly identical to the desired value and has better anti-vibration performance for specific working conditions. The model has nine important parameters supporting the modelling, with the center of the wire clamp as the axis of symmetry.


3.Application:This device is particularly useful in regions where transmission lines are subject to wind-induced vibrations, which can cause damage to fixtures, broken strands of the wire, and even broken wires. The anti-vibration hammer has proven its good suppression effect on breeze vibration over decades of operating experience.



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