Description
Elevator door operator belt O 1250LI 1275LW Brief Introduction
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Product Name |
Elevator door operator belt |
| Model Number | O 1250LI 1275LW
Z 1250LI |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Elevator Door Operator Belt O 1250LI 1275LW – Nanjing Zhuye Elevatorparts
The elevator car top emergency power supply is a critical safety component that ensures the elevator’s emergency systems (such as lighting, communication, and door opening) operate normally when the main power supply fails. The Elevator Car Top Emergency Power Supply DJW12-4.5/7.0 provided byNanjing Zhuye Elevatorparts is a high-reliability power supply device tailored for mainstream elevator systems. It supports two capacity specifications (4.5Ah and 7.0Ah) to meet the needs of different elevator models, widely compatible with brands such as Schindler, OTIS, and KONE. Crafted with high-performance lithium-ion batteries, intelligent charging management modules, and flame-retardant casings, this emergency power supply meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator leveling system is a key component that ensures the elevator car aligns accurately with the floor, providing safe and comfortable access for passengers. The elevator leveling sensor serves as the “eye” of this system, detecting the car’s position in real time. The Elevator Leveling Sensor TNC-121 provided by Nanjing Zhuye Elevatorparts is a high-precision position-sensing component tailored for mainstream elevator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This sensor adopts advanced photoelectric sensing technology, featuring high detection accuracy, fast response speed, and strong anti-interference ability, ensuring the elevator stops stably and accurately at each floor. Crafted with high-quality optical components, sealed metal shells, and precision electronic circuits, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator lock is a core safety component that ensures the elevator car door and landing door remain locked during operation, preventing accidental opening and ensuring passenger safety. The Elevator Lock CV50 180 JK406-001 provided by Nanjing Zhuye Elevatorparts is a high-reliability safety lock tailored for mainstream elevator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This elevator lock integrates precise mechanical structure and stable electrical control, achieving reliable locking when the elevator is running and smooth unlocking when it reaches the floor. Crafted with high-strength alloy steel, flame-retardant plastic, and precision electronic components, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator’s electrical control system is prone to arc generation during switch-on and switch-off of contacts, which may cause damage to electrical components or even fire hazards. The elevator arc extinguisher serves as a “safety barrier” to suppress and eliminate arcs. The Elevator Arc Extinguisher HD1.211 provided by Nanjing Zhuye Elevatorparts is a high-performance arc suppression component tailored for elevator electrical systems. It is widely compatible with mainstream elevator brands such as Schindler, OTIS, and KONE, suitable for arc suppression of elevator contactors, relays, and other electrical contacts. Crafted with high-quality arc-extinguishing materials, flame-retardant shells, and precision structural design, this arc extinguisher meets international electrical safety standards (IEC 60947, GB/T 14048) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator door operator is the “power core” of elevator door opening and closing, and the door operator belt serves as a critical transmission component that connects the motor and door pulley system. The Elevator Door Operator Belt L075 provided by Nanjing Zhuye Elevatorparts is a high-performance transmission belt tailored for mainstream elevator door operator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, playing a vital role in ensuring smooth, quiet, and stable operation of elevator doors. Crafted with high-strength polyurethane (PU) material and embedded with high-tensile polyester cords, this belt features excellent wear resistance, tensile strength, and flexibility, meeting international elevator safety standards (EN 81-20, GB 7588) and becoming a trusted choice for global elevator maintenance teams and manufacturers.
The elevator door operator system relies on the close cooperation of driving pulleys (drive wheels) and driven pulleys to achieve smooth door opening and closing, and the door operator belt serves as the core transmission component connecting these two pulleys. The Elevator Door Operator Belt O 1250LI and O 1275LW launched byNanjing Zhuye Elevatorparts are high-performance transmission belts tailored for mainstream elevator door operator systems. They are widely compatible with renowned elevator brands such as Schindler, OTIS, and KONE, ensuring stable power transmission between the drive and driven pulleys. Crafted with high-strength chloroprene rubber, high-tensile polyester cords, and anti-slip surface design, these belts meet international elevator accessory standards (EN 81-1, GB/T 7025) and have become a trusted choice for global elevator maintenance teams and manufacturers.
Nanjing Zhuye Elevatorparts has always adhered to the concept of “quality first, safety-oriented,” implementing strict quality control throughout the production process of the O 1250LI/1275LW elevator door operator belts. Each belt undergoes rigorous testing, including tensile strength verification, wear resistance testing, elongation rate calibration, and high-low temperature resistance assessment. The O-type cross-section design ensures a tight fit with the pulley grooves, enhancing transmission efficiency and avoiding slipping between the belt and pulleys. The high-tensile polyester cords inside provide excellent load-bearing capacity, with an elongation rate of less than 2% after long-term use. The belts can work stably in a temperature range of -20℃ to 80℃, adapting to the operating environment of elevator door operator compartments, and have excellent resistance to oil, dust, and aging.
Usage Guide for Elevator Door Operator Belt O 1250LI 1275LW
Correct installation, tension adjustment, and maintenance are crucial to ensuring the transmission efficiency between the door operator’s drive and driven pulleys and extending the belt’s service life. Nanjing Zhuye Elevatorparts emphasizes that only certified elevator maintenance technicians are allowed to perform installation and replacement operations.
1. Pre-Installation Preparation
1. Pre-Installation Preparation
First, confirm that the elevator’s MAC car lighting controller model matches the POWCV24181MH power supply (check parameters such as input voltage, output voltage, output current, and installation dimensions). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and the secondary power supply for the car lighting system, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator landing doors and machine room entrance. Locate the power supply installation position (usually on the car top or in the car control cabinet) and clean the area to remove dust, debris, and oil stains. Finally, prepare professional tools such as a screwdriver, wire stripper, multimeter, and insulation tester, and check that the new POWCV24181MH power supply from Nanjing Zhuye Elevatorparts is intact (no damage to the shell, no loose pins).
First, confirm that the elevator door operator model matches the O 1250LI/1275LW belt (check parameters such as belt type, length, and width). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and door operator power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the landing. Fix the elevator door in a half-open state with wooden wedges to expose the door operator’s drive and driven pulleys. Finally, prepare professional tools such as a screwdriver, wrench, tension gauge, and pulley cleaner, and clean the surface of the drive and driven pulleys to remove dust, oil stains, and debris (avoid damaging the pulley grooves).
2. Installation & Tension Adjustment
If replacing the old belt, first loosen the tension adjustment bolt of the door operator to separate the drive and driven pulleys, then take down the old belt from the pulley grooves. Check the pulley grooves for wear (replace pulleys if grooves are severely worn to avoid belt slipping). Take the new O 1250LI/1275LW belt from Nanjing Zhuye Elevatorparts, and install it into the grooves of the drive and driven pulleys in sequence (ensure the belt is fully fitted into the grooves without deviation). Adjust the tension bolt to tighten the belt—use a tension gauge to confirm the tension is 8-12 N (appropriate tension ensures transmission efficiency and avoids belt damage). After adjustment, manually rotate the drive pulley to check if the belt runs smoothly without jamming or deviation, and ensure there is no abnormal friction between the belt and other components.
Debugg3. Operation & Daily Maintenance
Remove the wooden wedges fixing the door, restore the power supply, and switch the elevator to inspection mode. Operate the elevator door to open and close repeatedly, observing whether the door runs smoothly without abnormal noise (slipping or rubbing sounds indicate belt problems). Check the belt’s operation state—ensure it does not deviate from the pulley grooves and the door opening/closing speed is uniform. For daily maintenance, inspect the belt during weekly door operator patrols: Check for cracks, aging, or wear on the belt surface; confirm the belt tension is normal (re-adjust if loose); clean the belt and pulleys with a dry cloth regularly. Every 3 months, recheck the belt tension and pulley condition; every 6 months, apply a small amount of special belt lubricant to the pulley grooves (avoid contaminating the belt surface).
Replacement Cycle of Elevator Door Operator Belt O 1250LI 1275LW
The replacement cycle of the O 1250LI/1275LW door operator belt is closely related to the frequency of door opening and closing and operating environment. Under normal circumstances (elevator daily operation 12-24 hours, daily door opening and closing times ≤ 1500, dry and low-dust environment), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 1.5-2 years. This cycle is determined based on long-term field operation data and material aging tests, fully considering the wear of the belt surface and the attenuation of internal cord strength.
For elevators in high-traffic areas (e.g., large shopping malls, airports with daily door opening and closing times ≥ 2000) or harsh environments (high humidity, heavy dust, oil pollution), the replacement cycle should be shortened to 8-12 months. High-frequency transmission accelerates belt wear and aging, while harsh environments easily cause belt corrosion and pulley slipping. For low-usage elevators (e.g., villa elevators, small office buildings with daily operation time < 8 hours) in stable environments, the cycle can be extended to 2-3 years, but only after inspection and confirmation by Nanjing Zhuye’s technicians that the belt’s tension and wear condition meet standards.
Replace the belt immediately if any of the following issues occur, regardless of its service life: The belt has obvious cracks, cuts, or aging (brittle texture); the belt surface is severely worn, exposing internal cords; the belt is loose and cannot be tightened, causing slipping between the belt and drive/driven pulleys (resulting in slow door opening/closing or incomplete door closure); the belt deviates from the pulley grooves during operation, causing abnormal friction or noise; the belt’s elongation rate exceeds 5% (affecting transmission accuracy).
The Elevator Door Operator Belt O 1250LI and 1275LW from Nanjing Zhuye Elevatorparts integrate durability, stability, and strong compatibility, providing reliable transmission guarantee for the cooperation between elevator door operator’s drive and driven pulleys. By following the correct usage, maintenance, and replacement guidelines, you can effectively ensure the smooth operation of elevator doors, improve passenger experience, and reduce faults caused by belt abnormalities. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic O 1250LI/1275LW door operator belts, as well as professional services including model matching, on-site installation guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the stable and safe operation of your elevator.
