Description
Elevator Door Operator Motor 140ST-33
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Product Name |
Elevator Door Operator Motor |
| Model Number |
140ST-33 |
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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 Motor 140ST-33: High-Efficiency PMSM from Nanjing Zhuye Elevatorparts
The Elevator Door Operator Motor 140ST-33 is a high-performance permanent magnet synchronous motor (PMSM), specially designed as the core drive component for modern elevator door systems. It delivers stable, quiet, and precise power to control the synchronous opening and closing of car doors and landing doors, directly determining the safety, comfort, and operational efficiency of the elevator door system. Exclusively supplied by Nanjing Zhuye Elevatorparts, this motor fully complies with international standards such as EN 81-1 and national standard GB/T 18488-2015, with a rated torque of 3.5Nm, wide speed regulation range (150-1500r/min), and energy efficiency over 92%. It is widely compatible with mainstream elevator brands including Otis, Schindler, Thyssen, and domestic well-known brands, applicable to residential buildings, commercial complexes, office towers, and public facilities, meeting diverse elevator door system configuration needs.
Nanjing Zhuye Elevatorparts adheres to stringent quality control standards, and the 140ST-33 door operator motor is a perfect embodiment of this commitment. Each motor undergoes rigorous pre-delivery testing, including high-low temperature (-25℃ to 85℃) resistance tests, noise level detection (≤55dB under no-load condition), insulation resistance verification (≥2MΩ with 500V megohmmeter), and torque performance calibration. It adopts a high-quality neodymium-iron-boron permanent magnet core and high-purity oxygen-free copper windings, eliminating the need for carbon brushes to reduce maintenance costs and avoid dust pollution. The cast aluminum alloy shell with integrated heat dissipation fins ensures excellent heat dissipation, while the sealed deep-groove ball bearing with high-temperature resistant lubricating grease supports long-term stable operation without abnormal noise. Built-in overcurrent, overheating, and undervoltage protection functions effectively prevent motor damage from abnormal working conditions, with a standard one-year warranty.
Usage Guide for Elevator Door Operator Motor 140ST-33
Proper installation, wiring, debugging, and daily maintenance are crucial to maximizing the service life and performance of the 140ST-33 motor. In line with elevator maintenance safety principles and GB 50254-2014 electrical installation specifications, Nanjing Zhuye Elevatorparts strongly recommends all operations be performed by certified elevator maintenance technicians. Before installation, confirm the 140ST-33 model matches the elevator door operator and control system. For detailed wiring diagrams, parameter settings, and installation dimensions, refer to Nanjing Zhuye Elevatorparts’ product manual or contact our technical support team. Note: Cut off the main power supply and lock the switch before operation, wear protective gear, and ensure a dry, well-ventilated, dust-free installation environment.
1. Pre-Installation Preparation
First, cut off the elevator’s main power supply and lock the switch to prevent accidental startup, then move the car to the middle floor for a safe operation space. Prepare professional tools: torque wrench, cross screwdriver, 500V megohmmeter, level ruler, wire strippers, and insulation tape. Clean the door operator bracket installation position thoroughly to remove dust, rust, and oil stains—key to ensuring installation accuracy. Carefully inspect the 140ST-33 motor for external damage (cracked shell, loose terminals, damaged encoder). Use a megohmmeter to test insulation resistance and winding continuity, ensuring no internal faults. Check matching components (transmission belts, pulleys, controllers) for wear or deformation, replacing damaged parts in advance for smooth coordination.
2. Installation & Wiring
Fix the 140ST-33 motor on the door operator bracket with high-strength hexagon bolts, using a level ruler to ensure horizontal installation (tolerance ≤±1mm) to avoid operation vibration. Tighten bolts according to specified torque (M8 thread: 8-10N·m) to prevent long-term vibration loosening. Follow Nanjing Zhuye Elevatorparts’ wiring diagram to connect three-phase power wires (U/V/W) and encoder signal wires to the controller, complying with electrical wiring principles—fire wire (brown/red), neutral wire (blue), ground wire (yellow-green double color) with standardized color identification. Control wire stripping length to 6-8mm, ensure firm terminal connections, and wrap with insulation tape to prevent short circuits. Separate power and signal wires (spacing ≥30cm) to reduce electromagnetic interference, organize wires neatly with cable ties, and install the protective cover after wiring to prevent dust entry.
3. Debugging & Daily Maintenance
After installation, restore power and start debugging. Use the door operator controller to set rated speed, acceleration/deceleration time, and torque limit to match the 140ST-33 motor, ensuring door opening/closing speed meets industry standards (3-5 seconds for center-opening, 4-6 seconds for side-opening). Run no-load for 5-10 minutes to check for abnormal noise, vibration, or overheating, then conduct load testing by running through all floors in maintenance mode to verify smooth door operation. For daily maintenance, follow TSG T5002—2017 regulations: Clean the motor shell monthly; inspect bolts, terminals, and belts. Every 6 months, test insulation resistance and replace bearing lubricating grease. For harsh environments, double inspection frequency and apply anti-rust agent to metal parts.
Replacement Cycle of Elevator Door Operator Motor 140ST-33
The 140ST-33’s replacement cycle depends on usage frequency, operating environment, and maintenance quality. Under normal conditions—12-24 hours daily operation, regular maintenance, dry environment—Nanjing Zhuye Elevatorparts recommends 6-8 years. This cycle is based on field test data and industry standards, considering permanent magnet aging, bearing wear, and insulation degradation.
For high-traffic areas (airports, subway stations) or harsh environments (high humidity, heavy dust), shorten the cycle to 4-6 years. High-frequency operation accelerates component wear, while harsh conditions cause corrosion and circuit faults. For low-usage elevators (villas, small offices), proper maintenance extends the cycle to 8-10 years. Motors over 7 years old require semi-annual professional inspections by Nanjing Zhuye Elevatorparts technicians.
Replace immediately if: Abnormal noise, severe vibration, or frequent overheating (surface temperature >85℃); insulation resistance <0.5MΩ; speed regulation failure; insufficient torque; severe shell corrosion; frequent door faults; failed annual safety inspection. Use 100% genuine 140ST-33 motors from Nanjing Zhuye Elevatorparts to ensure compatibility and safety.
The 140ST-33 from Nanjing Zhuye Elevatorparts integrates reliability, efficiency, and durability, ideal for elevator door system maintenance and new installations. Backed by strict quality control, mature technology, and comprehensive after-sales service, we provide genuine components and professional support. Choose Nanjing Zhuye Elevatorparts and the 140ST-33 to ensure long-term safe, stable elevator door operation.
