Description
Elevator door knife CSK-POARCC400-1/2 Brief Introduction
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Product Name |
Elevator door knife |
| Model Number | CSK-POARCC400-1
CSK-POARCC400-2 |
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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 Knife CSK-POARCC400-1/2: Core Interlocking Component from Nanjing Zhuye Elevatorparts
The elevator door knife is a critical interlocking component between the car door and hall door, responsible for driving the hall door to open and close synchronously with the car door when the elevator arrives at the landing. Its precision and reliability directly determine the safety and smoothness of elevator door operation, and it is an indispensable part of the elevator door system’s safety protection mechanism. The Elevator Door Knife CSK-POARCC400-1/2, exclusively supplied by Nanjing Zhuye Elevatorparts, is meticulously designed for modern passenger and freight elevators. Fully compliant with international standards such as IEC/EN 60947 and GB 7588, this door knife features a precision-forged structure, wear-resistant roller components, and a scientific gap design. It is compatible with mainstream elevator brands including Schindler, OTIS, KONE, and domestic well-known brands, widely used in residential buildings, commercial complexes, airports, subway stations, and office buildings, providing reliable interlocking support for elevator door systems.
Nanjing Zhuye Elevatorparts adheres to strict quality control standards, and the CSK-POARCC400-1/2 Elevator Door Knife is a concentrated embodiment of this philosophy. Each door knife undergoes multiple rigorous tests before leaving the factory, including interlocking accuracy testing, wear resistance testing, high-temperature (up to 80℃) and low-temperature (down to -30℃) resistance tests, and impact resistance tests. The door knife body is made of high-strength alloy steel through precision forging and heat treatment, which has excellent rigidity and wear resistance, ensuring stable performance even after long-term frequent operation. The roller components adopt high-precision bearings, reducing friction during operation and ensuring smooth interaction with the hall door lock. The surface is treated with electrophoretic coating to effectively resist corrosion from dust, moisture, and other factors in the hoistway. In addition, the door knife is designed with a scientific gap to ensure that the car door knife and hall door sill maintain a safe distance of 5-10mm, complying with relevant safety regulations.
Usage Guide for Elevator Door Knife CSK-POARCC400-1/2
Correct installation, debugging, and daily maintenance are crucial to ensuring the interlocking performance of the CSK-POARCC400-1/2 Door Knife. Nanjing Zhuye Elevatorparts strongly recommends that only professional and certified elevator maintenance technicians perform installation and debugging operations, as the door knife involves core interlocking safety functions, and improper operation may lead to serious safety hazards such as asynchronous opening and closing of the car and hall doors. Before use, confirm that the model, installation dimensions, and interlocking parameters of the door knife are completely consistent with the elevator door system. For detailed installation steps, adjustment standards, and parameter requirements, refer to the product manual provided by Nanjing Zhuye Elevatorparts, or contact our technical support team for professional guidance.
1. Pre-Installation Preparation
First, cut off the main power supply of the elevator and the power supply of the door operator system, lock the power switch, and place a “Maintenance in Progress” warning sign at the elevator entrance and machine room to prevent accidental startup. Operate the elevator to the middle floor and enter the car top through the safety window to access the car door device. Prepare professional tools such as screwdrivers, torque wrenches, calipers, and wire brushes. Clean the installation position of the door knife (on the car door hanging plate) to remove dust, debris, and oil stains, as these impurities may affect the fitting accuracy. Carefully inspect the CSK-POARCC400-1/2 door knife for external damage, such as cracks on the knife body, damage to the roller, or deformation of the connecting parts. Check whether the accessories such as fixing bolts and adjusting gaskets are complete.
2. Installation & Wiring
Fix the CSK-POARCC400-1/2 Door Knife on the dedicated mounting position of the car door hanging plate, ensuring that the installation is firm and there is no shaking. Note that the tightening torque of the fixing bolts should be strictly in accordance with the specifications provided by Nanjing Zhuye Elevatorparts to avoid deformation of the knife body. Use a caliper to adjust the key gaps: the gap between the door knife and the hall door lock roller should be controlled at 3-5mm, and the distance between the door knife and the hall door sill should be maintained at 5-10mm . Adjust the parallelism between the door knife and the car door to ensure that the door knife can smoothly engage with the hall door lock during operation. After adjustment, manually open and close the car door several times to check whether the door knife can drive the hall door to open and close synchronously without jamming or collision. Confirm that the interlocking function is normal: when the car door is not fully closed, the hall door cannot be opened manually.
3. Debugging & Daily Use
After installation, restore the power supply and conduct systematic debugging. Operate the elevator to run to different landings, and check whether the CSK-POARCC400-1/2 door knife can reliably drive the hall door to open and close synchronously with the car door at each floor. Test the safety interlocking function: when the elevator is not at the landing, try to open the hall door manually to confirm that the door knife cannot be engaged and the hall door remains locked. During daily use, maintenance personnel should conduct regular inspections in accordance with TSG T5002-2017 regulations : clean the door knife and roller surface with a wire brush monthly to remove dust and rust; check the tightness of fixing bolts and the wear of rollers quarterly; lubricate the roller bearings annually with special lubricating oil as required. It is strictly prohibited to use hard objects to block the door knife or modify its structure, so as not to damage the interlocking function.
Replacement Cycle of Elevator Door Knife CSK-POARCC400-1/2
The replacement cycle of the CSK-POARCC400-1/2 Elevator Door Knife is affected by factors such as usage frequency, operating environment, and maintenance quality. Under normal use conditions—elevator operation time is 12-24 hours a day, the number of door opening and closing times per day is within 5000 times, and the hoistway environment is dry and well-ventilated—Nanjing Zhuye Elevatorparts recommends a replacement cycle of 8-10 years. This cycle is formulated based on a large number of field test data and GB/T31821—2015 “Technical Conditions for Scrap of Elevator Main Components” , fully considering the main factors affecting performance, such as wear of the door knife body and rollers, deformation of the structure, and corrosion of components.
For elevators in high-traffic areas such as shopping malls, airports, and subway stations, where the number of door opening and closing times per day exceeds 10000 times, or in harsh environments with high humidity, heavy dust, or large temperature fluctuations, the replacement cycle should be shortened to 6-8 years. High-frequency operation accelerates the wear of the door knife and rollers, while harsh environments easily cause corrosion of the knife body and damage to the bearings. For elevators with low usage frequency, such as villa elevators and small office buildings with daily operation time less than 8 hours, if maintained properly, the replacement cycle can be extended to 10-12 years. However, professional technicians from Nanjing Zhuye Elevatorparts should conduct annual inspections on door knives over 10 years old, focusing on testing interlocking accuracy, structural deformation, and roller wear.
Regardless of the service life, the CSK-POARCC400-1/2 Door Knife should be replaced immediately if any of the following problems occur: the door knife body is severely worn, deformed, or cracked, affecting interlocking with the hall door lock; the roller is damaged or stuck, leading to unsmooth door opening and closing; the door knife cannot drive the hall door to open and close synchronously, resulting in asynchronous door movement; the gap between the door knife and the hall door sill exceeds the safety range and cannot be adjusted; the door knife is corroded seriously and affects structural strength; the door knife fails the annual safety inspection. Timely replacement of the door knife is essential to avoid serious safety accidents such as hall door being opened abnormally or door clamping.
Door Knife CSK-POARCC400-1/2precise interlocking performance, highwide makingtAs a core interlocking component of the elevator door system, it plays a decisive role in ensuring the safe and smooth operation of elevators. his modelousdoorpassenger safetyCSK-POARCC400-1/2 Door Knives, and offeron-site debuggingsafety The Elevator Hall Door Lock Device DCAF3A from Nanjing Zhuye Elevatorparts combines reliable safety performance, stable mechanical structure, and wide compatibility, making it an ideal choice for elevator maintenance and renovation. As a core safety component of the elevator system, it plays a decisive role in ensuring the safe operation of elevators and protecting the lives of passengers. With strict quality assurance and perfect after-sales service, this model has won the trust of numerous elevator maintenance enterprises and property management companies. By following the correct usage methods and replacement cycles, you can effectively reduce the safety risks of the elevator system and ensure compliance with relevant regulatory requirements. Nanjing Zhuye Elevatorparts provides 100% genuine DCAF3A Hall Door Lock Devices, and offers professional technical support including model matching, installation guidance, and on-site debugging. Choose Nanjing Zhuye Elevatorparts to get reliable elevator safety components and intimate services.
