The 8×19S/W/25F+PWRC Elevator Rope introduces an innovative hybrid solution for modern vertical transportation systems, combining the proven 8×19S/W strand configuration with a Polymer-Wrapped Wire Rope Core (PWRC).
| Quantity: | |
|---|---|
| Specification:DIN/EN/ISO/JISG/BS/GB/T 8x19S+PWRC,8x19W+PWRC,8x25F+PWRC | ||||||
| Nominal Diameter (mm) | Approx Weight(kg/100m) | Nominal Tensile Strength(MPa) | ||||
| 1370/1770 | 1570/1770 | 1570 | 1770 | 1960 | ||
| Minimum Breaking Strength(kn) | ||||||
| 6 | 16.5 | 22.9 | 24.3 | 22.9 | 25.8 | 28.6 |
| 8 | 29.2 | 40.7 | 43.3 | 40.7 | 45.9 | 50.8 |
| 9 | 37.0 | 51.5 | 54.8 | 51.5 | 58.1 | 64.3 |
| 9.5 | 41.2 | 57.4 | 61.0 | 57.4 | 64.7 | 71.6 |
| 10 | 45.7 | 63.6 | 67.6 | 63.6 | 71.7 | 79.4 |
| 11 | 55.3 | 76.9 | 81.8 | 76.9 | 86.7 | 96.0 |
| 12 | 65.8 | 91.6 | 97.4 | 91.6 | 103 | 114 |
| 12.7 | 73.7 | 103 | 109 | 103 | 116 | 128 |
| 13 | 77.2 | 107 | 114 | 107 | 121 | 134 |
| 14 | 89.6 | 125 | 133 | 125 | 141 | 156 |
| 15 | 103 | 143 | 152 | 143 | 161 | 179 |
| 16 | 117 | 163 | 173 | 163 | 184 | 203 |
| 18 | 148 | 206 | 219 | 206 | 232 | 257 |
| 19 | 165 | 230 | 244 | 230 | 259 | 287 |
| 20 | 183 | 254 | 271 | 254 | 287 | 318 |
| 22 | 221 | 308 | 327 | 308 | 347 | 384 |
| Note: Stainless Steel Wire Rope is available. | ||||||
This advanced core technology merges the best attributes of steel and fiber cores, featuring a steel wire rope core encapsulated in a high-performance polymer jacket. The result is a rope that delivers enhanced flexibility from the polymer component while maintaining the strength and stability benefits of a steel core. This design addresses key challenges in elevator applications, including vibration damping, corrosion resistance, and reduced maintenance requirements, making it an ideal choice for both new installations and modernization projects.
The PWRC (Polymer-Wrapped Wire Rope Core) consists of a 7×7 steel wire rope core encased in a durable polymer sheath, typically made from polyurethane or polyester. This construction provides 20% greater flexibility than traditional IWRC while maintaining 90% of the strength, creating an optimal balance for elevator applications requiring both durability and smooth operation.
The polymer layer in the core acts as a shock absorber, reducing vibration and noise during elevator operation by up to 25% compared to all-steel cores. This feature significantly enhances ride comfort in passenger elevators and reduces noise transmission between floors—a critical advantage in luxury residential and hospitality buildings.
The polymer jacket creates a barrier that protects the inner steel core from moisture, dust, and chemical contaminants common in elevator shafts. This protection extends core service life by preventing internal corrosion, a major cause of premature failure in traditional steel-core ropes. The outer strands can be further protected with galvanization for complete corrosion resistance.
The polymer core retains lubrication more effectively than traditional cores, extending lubrication intervals to 12 months under normal operating conditions. The smooth polymer surface also reduces friction between the core and outer strands, minimizing wear on both components and contributing to longer overall rope life.
Manufactured with high-tensile steel wires (1670 MPa to 1960 MPa), the 8×19S/W/25F+PWRC rope delivers impressive breaking loads. A 12mm diameter rope typically achieves a minimum breaking load of 150 kN, with larger diameters (up to 24mm) reaching 591 kN at 1960 MPa tensile strength.
This innovative elevator rope excels in diverse vertical transportation scenarios:
• Luxury residential elevators where ride comfort and quiet operation are prioritized
• Historic building modernizations requiring ropes that fit existing sheave configurations
• Hospital and healthcare facility elevators where vibration reduction benefits patient comfort
• Coastal region installations where high humidity demands enhanced corrosion resistance
• Mid-rise commercial buildings seeking extended maintenance intervals and reduced downtime
PWRC offers a middle ground between FC and IWRC, providing greater strength than fiber cores and enhanced flexibility than steel cores. It combines the corrosion resistance of FC with the load-bearing capacity of IWRC, making it suitable for applications where neither traditional core performs optimally.
The polymer component limits continuous operating temperature to 80°C (176°F), which is sufficient for most elevator applications. In high-rise installations with long travel distances, heat buildup should be monitored, and specialized high-temperature polymers are available for extreme conditions.
Yes, PWRC ropes are dimensionally compatible with IWRC designs of the same diameter. Their enhanced flexibility often improves performance in older systems with fixed sheave configurations, reducing wear on both the rope and existing components.
Splicing PWRC ropes requires specialized techniques to ensure proper sealing of the polymer jacket after core exposure. Factory-spliced ends are recommended, as they maintain the corrosion barrier and achieve 90% strength retention compared to the rope's full breaking load.
Under normal operating conditions, PWRC ropes typically provide 7-10 years of service, representing a 15-20% improvement over traditional IWRC ropes in equivalent applications. This extended life results from reduced internal corrosion and minimized strand wear.
