Description
Elevator Door Knife ID 10019550 Brief Introduction
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Product Name |
Elevator Door Knife |
| Model Number | ID 10019550 |
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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 ID 10019550: Core Linkage Component from Nanjing Zhuye Elevatorparts
The elevator door knife is a critical linkage component in the elevator door system, responsible for driving the landing door to open and close synchronously with the car door. It acts as a “bridge” between the car door and landing door, and its structural stability and action accuracy directly determine the safety and reliability of the entire door system. The Elevator Door Knife ID 10019550, exclusively supplied by Nanjing Zhuye Elevatorparts, is meticulously designed for modern passenger and freight elevators. Compliant with international standards such as IEC/EN 60947 and GB 7588, this door knife is made of high-strength carbon steel through precision forging and heat treatment, featuring excellent mechanical strength, wear resistance, and corrosion resistance. It boasts wide compatibility with mainstream elevator brands including Schindler, OTIS, KONE, and domestic well-known brands, widely used in residential buildings, commercial complexes, airports, subway stations, and other scenarios, providing reliable linkage support for elevator door systems.
Nanjing Zhuye Elevatorparts adheres to stringent quality control standards, and the Elevator Door Knife ID 10019550 is a testament to this commitment. Each door knife undergoes rigorous pre-delivery testing, including mechanical strength testing, wear resistance testing, dimensional accuracy verification, and fatigue resistance testing (withstand over 2 million cycles of door opening and closing without deformation). The key contact surfaces of the door knife are precision-ground to ensure smooth contact with the landing door lock, reducing friction and wear during operation. The surface is treated with electrophoresis or galvanization, which can effectively resist the erosion of dust, moisture, and oil stains in the elevator hoistway. In addition, the door knife is equipped with an anti-loosening structure for key fasteners, avoiding component displacement caused by long-term vibration, and further enhancing the operational safety of the door system.
Usage Guide for Elevator Door Knife ID 10019550
Proper installation, adjustment, and daily maintenance are vital to maximizing the service life and operational safety of the Door Knife ID 10019550. Nanjing Zhuye Elevatorparts strongly recommends that only certified elevator maintenance technicians perform these operations to avoid door system jamming, landing door misalignment, or other safety hazards. Before installation, verify that the door knife model, dimensions, and installation hole positions are completely consistent with the elevator door system. For detailed installation steps and adjustment standards, 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 elevator’s main power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the entrance and machine room to prevent accidental startup. Operate the elevator car to the middle floor and secure it with safety supports, then enter the car top to access the door system. Prepare professional tools: torque wrenches, screwdrivers, calipers, level gauges, wire brushes, and anti-rust lubricants. Clean the installation position of the door knife (on the car door hanging plate) to remove dust, rust, and debris—impurities that can affect installation accuracy. Carefully inspect the Door Knife ID 10019550 for external damage (e.g., cracks, deformation, or wear on contact surfaces) and confirm that all fasteners (bolts, nuts) are complete and intact. Check the matching landing door lock components to ensure they are free of faults that may affect the door knife’s operation.
2. Installation & Adjustment
Align the Door Knife ID 10019550 with the mounting holes on the car door hanging plate, fix it with high-strength bolts, and tighten the bolts according to the torque specifications provided by Nanjing Zhuye Elevatorparts (usually 25-35 N·m) to avoid loosening. Adjust the door knife’s position: ensure the gap between the door knife and the landing door lock roller is 3-5mm—too small will cause friction, while too large will affect the synchronous opening of the landing door. Use a level gauge to check that the door knife is installed horizontally and vertically, ensuring no tilt during operation. After adjustment, manually push the car door to simulate opening and closing, checking whether the door knife can smoothly engage with the landing door lock roller and drive the landing door to open/close without jamming or abnormal noise. If there is deviation, fine-tune the door knife’s position until it meets the requirements. Finally, apply a thin layer of anti-rust lubricant to the door knife’s rotating and contact parts to reduce wear.
3. Daily Maintenance & Use
Follow TSG T5002—2017 and local elevator maintenance regulations: inspect the Door Knife ID 10019550 monthly for wear, deformation, or loose fasteners; clean the door knife surface and contact parts with a wire brush to remove rust and debris. Reapply anti-rust lubricant quarterly to ensure smooth operation. For high-traffic elevators (e.g., malls, airports), increase the inspection frequency to twice a month. During use, if abnormal phenomena such as harsh noise, slow door opening/closing, or landing door failure to open occur, immediately stop using the elevator and arrange maintenance—these may be caused by door knife wear or misalignment. It is strictly prohibited to modify the door knife’s structure, grind its contact surface without authorization, or replace it with non-genuine products, as this will seriously affect the safety of the door system.
Replacement Cycle of Elevator Door Knife ID 10019550
The replacement cycle of the Door Knife ID 10019550 depends on usage frequency, operating environment, and maintenance quality. Under normal conditions—12-24 hours of daily operation, clean/dry hoistway environment, and regular maintenance—Nanjing Zhuye Elevatorparts recommends a replacement cycle of 6-8 years. This cycle is 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 contact surface, deformation of the knife body, aging of the surface anti-corrosion layer, and fatigue of fasteners.
For elevators in high-traffic areas such as shopping malls, airports, and subway stations, where the daily number of door openings/closing exceeds 3000 times, or in harsh environments with high humidity, heavy dust, or large temperature fluctuations (e.g., outdoor elevators), the replacement cycle should be shortened to 4-6 years. High-frequency operation accelerates the wear of the door knife’s contact surface, and harsh environments easily cause corrosion and deformation of the knife body. For elevators with low usage frequency, such as villa elevators and small office buildings with daily operation time less than 8 hours, proper maintenance can extend the cycle to 8-10 years. However, Nanjing Zhuye Elevatorparts’ technicians should conduct semi-annual comprehensive inspections on door knives over 7 years old to ensure their structural integrity and operational performance meet requirements.
Regardless of the service life, the Door Knife ID 10019550 should be replaced immediately if any of the following problems occur: the contact surface is severely worn (wear depth exceeding 2mm) or the knife body is cracked/deformed, affecting engagement with the landing door lock; the door knife cannot drive the landing door to open/close synchronously, leading to landing door jamming or failure to open; key fasteners are loose and cannot be fixed, posing safety hazards; the surface anti-corrosion layer is severely damaged, resulting in obvious rust that cannot be removed; the door knife fails to pass the annual safety inspection. Timely replacement of the door knife is critical to avoiding door system breakdowns and ensuring passenger safety.
The Elevator Door Knife ID 10019550 from Nanjing Zhuye Elevatorparts combines structural stability, wear resistance, and wide compatibility, making it an ideal choice for elevator maintenance and renovation. Backed by strict quality control, advanced forging technology, and comprehensive after-sales service, it has earned trust from maintenance firms and property managers worldwide. Adhering to proper usage, maintenance, and replacement guidelines minimizes door system failures and enhances the overall operational safety of the elevator. Nanjing Zhuye Elevatorparts provides 100% genuine ID 10019550 door knives, plus professional support including model matching, on-site installation guidance, and fault diagnosis. Choose Nanjing Zhuye Elevatorparts for reliable core components and attentive service tailored to your elevator needs.
