Our "OPGW hydraulic puller-OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioners" are engineered with multiple safeguards to protect the optical fibers:

• Closed Hydraulic Circuit: Provides ultra-smooth, stepless speed and tension control, eliminating sudden jerks or tension spikes that could damage the fibers.

• Constant Tension Control: The machine automatically adjusts to maintain a pre-set, low tension, ensuring the OPGW is never overstressed.

• Large Diameter Bullwheels & Sheaves: Minimizes the bending radius of the OPGW, which is critical for preventing stress on the optical fibers.

• Non-Metallic, Lined Grooves: The bullwheels and all OHTLstringingequipment.com/Stringing-Blocks--Sheaves.html target='_blank'>Stringing Blocks feature grooves lined with soft, abrasion-resistant materials (e.g., specific polyurethanes, high-density nylon) to cushion and grip the OPGW gently, preventing surface damage or crushing.

• Advanced Over-Tension Protection: Integrated digital dynamometers with automatic shutdown features prevent the tension from exceeding the OPGW's safe working limit.