Opticell Flexible Inner Ducts

Flexible sub duct

Opticell Flexible Inner Duct

OptiCell is a flexible fabric inner duct system designed to increase cable deployment efficiency, enabling installation of up to 30% more cables than rigid HDPE inner duct in conduit based network infrastructure. The only patented fabric inner duct, OptiCell’s unique textile construction allows it to conform to the shape of cables placed within. Hence greatly reducing the wasted space associated with rigid inner ducts, thus increasing conduit capacity.


The Opticell flexible duct is an innovation from Milliken, a textile technology company, who have the world’s largest private textile research facility. Opticell is one of Milliken’s world leading cable management solutions.

Space Saving

OptiCell flexible duct saves its users significant project costs by increasing cable density in network infrastructure. Therefore greenfield applications require smaller trenches, smaller vaults, and less conduit while still providing channels for future network expansions. By being able to override existing cables in conduits previously thought to be full, OptiCell offers a NO DIG solution in today’s network expansion projects.

Opticell Installation Tips see:

Features & Benefits

OptiCell cable management solutions:

  • Future proof networks
  • Increase conduit capacity
  • Reduce wasted space
  • Provide dedicated conduit pathways
  • Allow for easier cable identification
  • Flexible & light weight
  • Place 30% more cables
  • Install OptiCell 2x faster
  • Use 30% less manpower
  • Configurations in 1, 2 and 3 cells
  • Standard, Detectable, and Fire Resistant versions
  • Pre-installed color-coded pulling tapes standard
  • Pre-lubricated for lower pulling tensions
  • Resistant to ground chemicals and petroleum products

Opticell Inner Duct Specifications

Material Fabric Warp Polyester Monofilament
Filling Nylon/Polyester
Material Pull Tape High Tenacity Multifilament Polyester 565kg (5.54kN) / Optional 1135kg (11.13kN)
Sewing Line High Tensile Polyester
Temperature range -30°C to 100°C
Lubricate 100% Silicon Oil
Friction ~75% Lower Resistance
Breaking Tensile# 1 Cell >445kgs, 2 Cell >807kgs , 3 Cell >1169kgs
% Elongation @ 50kgs <5%
Melting Point >215°C
Thermal Expansion 8.4mm/100m/5°C
Detectable Wire Optional AWG 18Ga. (0.75mm2) Solid Core Copper with Vinyl and Nylon Insulation
Reel Length 2500m (Standard) Min 150m/ Max 6300m (3 cell)

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