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Class FS copper reeling

9 Min Read
Not every STS crane needs ETFE insulation, 56 cores, or integrated fiber optics. The vast majority of the world's operational STS crane fleet — thousands of cranes at hundreds of terminals — uses a simple, proven, 36-core control cable on the spreader reel. That cable is the Cordaflex® (N)SHTOEU (SMK)-V-S: a single-configuration workhorse with basic EPR insulation that every port electrician can strip and terminate using standard tools, a 36×2.5 + protective conductor core count that covers the circuit requirements of standard (non-automated) spreaders, and a construction that shares the premium vertical-rated architecture (Class FS, aramide, PCP rubber, ±50°/m torsion) of its more exotic siblings.
Technical Department
on03/04/2026

Cordaflex® (N)SHTOEU (SMK)-V-S

Not every STS crane needs ETFE insulation, 56 cores, or integrated fiber optics. The vast majority of the world’s operational STS crane fleet — thousands of cranes at hundreds of terminals — uses a simple, proven, 36-core control cable on the spreader reel. That cable is the Cordaflex® (N)SHTOEU (SMK)-V-S: a single-configuration workhorse with basic EPR insulation that every port electrician can strip and terminate using standard tools, a 36×2.5 + protective conductor core count that covers the circuit requirements of standard (non-automated) spreaders, and a construction that shares the premium vertical-rated architecture (Class FS, aramide, PCP rubber, ±50°/m torsion) of its more exotic siblings.
9 Min Read
SPREADERFLEX REEL XPRT (N)SHTOEU is the copper-only counterpart of the Cordaflex (SMK)-V-FO — sharing the same Class FS conductors, aramide self-supporting element, PCP rubber sheath, and 240 m/min vertical reeling capability, but without integrated fiber optics. It is designed for the large installed base of STS crane spreaders that do not require fiber optic communication — spreaders using copper-only control signals, or cranes where fiber optic data is provided through a separate dedicated cable or wireless link.
Technical Department
on03/04/2026

SPREADERFLEX REEL XPRT (N)SHTOEU

SPREADERFLEX REEL XPRT (N)SHTOEU is the copper-only counterpart of the Cordaflex (SMK)-V-FO — sharing the same Class FS conductors, aramide self-supporting element, PCP rubber sheath, and 240 m/min vertical reeling capability, but without integrated fiber optics. It is designed for the large installed base of STS crane spreaders that do not require fiber optic communication — spreaders using copper-only control signals, or cranes where fiber optic data is provided through a separate dedicated cable or wireless link.