SHD508D、SHD660D、SHDN916D。

Model

Outside diameter
of sheave (mm)


Sheave number

SHD508D

φ508×75

1

SHS508 D

3

SHW508 D

5

SHD660D

φ660×100

1

SHS660D

3

SHW660D

5

SHDN916D

φ916×110

1

SHSQN916D

3

SHWQN916D

5

uses :to lead induced current of into earth in conductor stringing construction .
the other parameter see “Large diameter string block ”.

if you purchase the large diameter stringing block with grounding roller , the model of block onlypostfix “D”.