Description
Elevator door lock contact ACK-2 Brief Introduction
|
Product Name |
Elevator door lock contact |
| Model Number | ACK-2 |
|
Quality
|
Original.Brand New
|
|
Payment
|
T/T. Paypal. Western Union
|
|
Delivery
|
3-5 Working Days
|
|
Packaging
|
Packed by carton
|
Elevator Door Lock Contact ACK-2 – 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 system’s safe operation relies on the close coordination of door machine pulleys (drive and driven wheels) and door lock components, among which the door lock contact is a critical safety switch that controls the elevator’s operation permission. The Elevator Door Lock Contact ACK-2 launched by Nanjing Zhuye Elevatorparts is a high-reliability safety component tailored for mainstream elevator door lock systems. It is widely compatible with renowned elevator brands such as Schindler, OTIS, and KONE, forming a safety interlock with the door machine pulley system—only when the contact is fully closed (indicating the door is tightly closed) can the door machine pulleys stop and the elevator start running. Crafted with silver alloy contacts, flame-retardant plastic shells, and precision spring structures, this contact meets international elevator safety standards (EN 81-20, GB/T 7025) and has 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 ACK-2 elevator door lock contact. Each unit undergoes rigorous testing, including contact resistance calibration, switching life verification, high-temperature resistance testing, and flame-retardant performance assessment. The silver alloy contacts have excellent electrical conductivity and wear resistance, with a switching life of ≥ 1 million times, ensuring stable connection during the frequent opening and closing of elevator doors driven by pulleys. The flame-retardant plastic shell reaches V0 level, effectively preventing fire risks caused by contact arcing. The contact’s precision spring design ensures reliable closing force, avoiding poor contact due to vibration during elevator operation, and it can work stably in a temperature range of -20℃ to 80℃, adapting to the operating environment of elevator door compartments.
Usage Guide for Elevator Door Lock Contact ACK-2
Correct installation, debugging, and maintenance of the ACK-2 door lock contact are crucial to ensuring the safe interlock between the elevator door lock and the door machine pulley system. Nanjing Zhuye Elevatorparts emphasizes that only certified elevator maintenance technicians are allowed to perform installation and replacement operations to avoid safety hazards such as elevator operation with doors not closed.
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 lock model matches the ACK-2 contact (check parameters such as installation dimensions, contact type, and rated voltage). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and door system 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 lock assembly and door machine pulleys. Finally, prepare professional tools such as a screwdriver, wrench, multimeter, and tweezers; clean the door lock installation area and check the door machine pulleys for wear (ensure pulleys run smoothly to avoid affecting door closing and contact triggering).
2. Installation & Wiring
Locate the original contact position in the door lock assembly and take photos to record the wiring direction and terminal connections for later reference. Disconnect the wires from the old contact according to the recorded labels and remove the old contact using a screwdriver. Take the new ACK-2 contact from Nanjing Zhuye Elevatorparts, install it into the door lock slot, and fasten it firmly with screws (ensure the contact’s trigger mechanism aligns with the door closing lever). Connect the wires to the corresponding terminals strictly following the photos and the wiring diagram provided by Nanjing Zhuye—distinguish between power wires and signal wires to avoid wrong connection. After wiring, manually close the elevator door to check if the contact is fully closed (the door machine pulleys should stop rotating when the contact closes); use a multimeter to measure the contact resistance, which should be close to 0Ω when closed and infinite when open.
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: when the door is fully closed, the ACK-2 contact should close, and the door machine pulleys stop; when the door is opened, the contact should open, and the elevator should not start. Observe the elevator’s display panel—there should be no door lock fault alarms. After 1 hour of stable operation, check the contact’s temperature (slightly warm is normal). For daily maintenance, inspect the contact during weekly door system patrols: check for loose wiring, oxidation on contact terminals, and damage to the shell; clean the contact surface with a dry cloth. At the same time, check the door machine pulleys’ operation status—abnormal pulley wear may cause incomplete door closing and affect the contact’s normal work. Every 3 months, use a multimeter to recheck the contact’s on-off performance; every 6 months, inspect the contact’s trigger mechanism and adjust if necessary.
Replacement Cycle of Elevator Door Lock Contact ACK-2
The replacement cycle of the ACK-2 door lock contact is closely related to the frequency of door opening and closing (i.e., the operating frequency of door machine pulleys) and the 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 2-3 years. This cycle is determined based on long-term field operation data and contact wear tests, fully considering the wear of silver alloy contacts and the aging of internal springs.
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, large temperature fluctuations), the replacement cycle should be shortened to 1-1.5 years. High-frequency door opening and closing accelerates contact wear, while harsh environments easily cause contact oxidation and shell damage. 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 3-4 years, but only after inspection and confirmation by Nanjing Zhuye’s technicians that the contact’s on-off performance and door machine pulley linkage meet standards.
Replace the contact immediately if any of the following issues occur, regardless of its service life: The contact fails to close or open normally (resulting in elevator failure to start or door not opening); the contact resistance exceeds 1Ω when closed (causing poor contact); the contact terminals are severely oxidized, loose, or burned; the shell is cracked, deformed, or burned; the contact cannot trigger normally due to wear, affecting the linkage with the door machine pulley system (e.g., door is closed but elevator still prompts door open).
The Elevator Door Lock Contact ACK-2 from Nanjing Zhuye Elevatorparts integrates reliability, durability, and strong compatibility, providing a critical safety guarantee for the linkage between the elevator door lock system and door machine pulley system. By following the correct usage, maintenance, and replacement guidelines, you can effectively ensure the safe operation of the elevator door system, prevent safety accidents caused by door lock failures, and improve elevator operation stability. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic ACK-2 door lock contacts, 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.
