Corrugated Steel Tape Cables For Mining Duct Direct Burial

GYFA/S/Y unitube loose tube comes with corrugated steel tape armoring, which is suitable for mining, duct and direct burial application. The outer sheath can be produced with PE, LSZH or flame-retardant materials for specific applications. The loose tube armoured fiber optic cable is using a corrugated steel tape strength member and water-blocking fiberglass yarn around the central uni-tube. This kind of reinforcement makes GYFA/S/Y fibre cable excellent performance on crush, tensile resistance, as well as rodent resistance. Therefore, it is usually used in the most demanding and harsh environments.


  • Corrugated steel tape as cable armouring
  • FRP as a central strength member
  • Water blocking materials and hydrolysis resistant high strength loose tube
  • Excellent crush and tensile pressure resistance
  • Good mechanical and temperature characteristics
  • Long delivery length
  • Perfect for indoor and outdoor harsh environments
  • Customize on cable sheath materials PE, LSZH, Flame-Retardant


Duct, Direct burial, Backbone communication cabling, Underground mining communications

Cable Cores


Fiber in Cable


Cable Sheath


Dielectric Strength Member


Additional Strength Member

PE Coated Steel Tape

Loose Tube Diameter


Drum length

500m,1000m & 2000m(±3%)

Installation Temperature Range

-40℃ to 70℃ (-40°F to 158°F )

Operation Temperature Range

-30℃ to 70℃ (-22°F to 158°F )

Storage/Transport Temperature Range

-40℃ to 70℃ (-40°F to 158°F )

Crush Resistance

Short Term (1000 N/100mm); Long Term (2000 N/100mm)

Min. bending radius

Without Tension (10.0×ODmm); Under Max Tension (20.0×ODmm)

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