Conti Polyrope

Polyrope replaces steel ropes in elevators

  • Alternative suspension means offers advantages in comparison to steel ropes
  • Reduced downtime & maintenance costs
  • Profiled back side allows narrower construction width
  • Available in 25 mm & 50 mm wide versions

Over 100 years, steel ropes were indispensable as suspension means for elevators. Around the turn of the millennium, first alternatives came up with robust polyurethane belts, which were much lighter than steel ropes, allowing more efficient drives and easier maintenance. Now, with the patented Conti Polyrope, the company ContiTech has further developed the flat belt technology. The Conti Polyrope is certified according to the Lift Directive 95/16/EC, available in two different widths, with or without profiled back side and available on the free market for elevator manufacturers worldwide.

suspension system of elevator

The back side of the new variants of the Conti Polyrope feature a profile. In a 2:1 elevator suspension, deflection pulleys can be provided with a corresponding profile, which enables a smaller and narrower construction width (Source: ContiTech)

Advantages in comparison to steel ropes

The rope features 2 mm thick steel ropes consisting of 49 individual strands, which are embedded in a polyurethane coating. They give the suspension means its high tensile and breaking strength. The coating is durable, resistant to hydrolysis and has very good traction properties, i.e. even at maximum load, a reliable power transmission is given. As a result, the product holds up to three times longer than comparable steel ropes and is 20 % lighter. It also does not need to be lubricated. This helps to reduce downtime and maintenance costs. The Conti Polyrope is available in 25 mm and 50 mm wide versions, and with a flat as well as with a profiled back side.

Main Picture: The composite rope Conti Polyrope consists of steel cables that are embedded in a coat made of polyurethane (Source: ContiTech)

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