How to Choose an OTIS Elevator Traction Belt?
As the core component of an elevator traction system, elevator traction belt compatibility directly determines the safety, comfort, and cost-efficiency of elevator operations. OTIS elevator traction belt—featuring a core structure of 588 high-tensile steel wires, a lubricant-free design, and an ultra-long service life—has become the preferred choice for both modernization and new construction projects. To scientifically select the appropriate OTIS elevator steel belt for varying operational conditions and requirements, one must conduct a comprehensive evaluation across multiple dimensions, including core parameters, environmental conditions, and safety standards.
The elevator’s rated load, operating speed, and rise (travel height) serve as the primary benchmarks for elevator steel belt selection, requiring strict adherence to parameter-matching principles:
Matching Rated Load with Belt Specifications: The OTIS elevator traction belt is available in width specifications such as 30mm and 60mm. (e.g., the AAA717X1 series is 30mm wide for a 1,000kg rated load; the AAA717AD1 series is 60mm wide, designed for heavy-duty 1,600kg requirements). During selection, ensure the elevator steel belt's rated breaking tension maintains a safety factor of ≥ 8 relative to the elevator's rated load. For instance, for a 1,350kg capacity elevator, a 60mm wide elevator belt is recommended, as its single-belt breaking tension can exceed 150kN, far surpassing safety standard requirements.
Alignment of Operating Speed and Traction Efficiency: Per the GB/T 24803 standard series, traction efficiency must be precisely matched to the elevator's rated speed. OTIS elevator traction belt covers a speed range of 0.5m/s to 2.5m/s. Specifically, OTIS GeN2 belts series, paired with permanent magnet synchronous gearless traction machines, maintains over 95% transmission efficiency at 2.5m/s—a 50% improvement over traditional steel wire ropes. For high-speed elevators (>2.0m/s), specialized models with higher steel wire density are required to ensure stability during high-speed operation.
Adapting Product Features to Rise (Travel Height): To dispel the industry misconception that "elevator steel belt is only suitable for elevators under 30 meters," OTIS has successfully implemented elevator belts in projects with a rise of 95.1 meters and a 1,600kg load, maintaining long-term stable operation without safety incidents. For low-to-mid-rise elevators (≤70m), a standard OTIS belt is sufficient; for high-rise projects (>70m), the Fire-Resistant Coating Series is recommended. Its jacket features high-fire-resistance materials to maintain structural integrity in high-temperature environments.
The synthetic rubber jacket of the OTIS elevator steel belt is engineered for specific environments. Selecting the correct model based on operating conditions is essential for maximizing longevity:
Ambient Temperature, Humidity, and Corrosion: For specialized environments like hospitals or laboratories exposed to acidic or alkaline gases, we recommend an anti-corrosion elevator steel belt. These features include acid-resistant jackets that have passed 480-hour salt spray tests without aging. In outdoor hoistways or areas with extreme temperature fluctuations, a low-temperature, high-toughness elevator belt is required to prevent jacket cracking. For standard enclosed hoistways—which are free from dust, direct sunlight, and extreme temperature shifts—the standard elevator traction belt offers a service life 2–3 times longer than traditional steel wire ropes.
Usage Frequency and Duty Cycles: In high-traffic locations such as malls and office buildings (averaging >800 runs per day), heavy-duty elevator steel belts with superior fatigue strength are necessary. These belts utilize galvanized steel wires and jackets infused with wear-resistant particles, capable of withstanding over 2 million bending fatigue cycles. For modernization projects (units over 10 years old), we verify the OTIS GEN2 belts' groove profile to ensure the perfect match.
The selection process must strictly adhere to national codes and product safety requirements, focusing on three core areas:
Safety Device Compatibility: The OTIS elevator traction belt must be paired with the RBI (Remote Belt Inspection) monitoring system. In the event of broken strands or wear exceeding safety limits, the system triggers an automatic alarm and brings the elevator to a halt, fulfilling the mandatory requirements of the latest inspection regulations. During selection, verify that the belt is compatible with the elevator's original safety system to ensure a governor-safety gear linkage response time of ≤ 0.1s.
Compliance Certification Verification: The OTIS elevator steel belt should possess a test report. Nameplates must clearly display critical data, including rated load, breaking tension, and production date.
Installation Technical Requirements: Installation must meet specifications such as "tensioning devices equipped with safety switches" and ensuring "no contact with hoistway components during operation." When selecting the OTIS GEN2 belts, determine the belt length based on hoistway dimensions, allowing for a tuning margin of ±50mm. For MRL (Machine Room-Less) elevators, a highly flexible flat OTIS belt is recommended to facilitate complex routing within the hoistway and reduce installation difficulty.
As elevator technology continues to evolve, the OTIS elevator traction belt has become an indispensable core component of modern elevator systems. Selecting the right OTIS belt based on the specific requirements significantly enhances safety, stability, and operational efficiency, ultimately reducing operating costs and extending the equipment's service life. If you have any questions or requirements regarding the OTIS elevator steel belt, please feel free to call us now at +86 17719527681 or email us at candice@nonaelevator.com. We are committed to providing you with the highest level of service.