Description
Elevator wire rope U-shaped lock 8MM 6MM 10MM 12MM Brief Introduction
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Product Name |
Elevator wire rope U-shaped lock |
| Model Number | 8MM 6MM 10MM 12MM |
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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 Wire Rope U-Shaped Lock (6MM/8MM/10MM/12MM): Secure Fastening Core from Nanjing Zhuye Elevatorparts
Elevator Wire Rope U-Shaped Lock, available in 6MM, 8MM, 10MM, and 12MM specifications, is a critical fastening and anti-loosening component for elevator wire rope systems. Tailored to match wire ropes of corresponding diameters, it is widely used to fix wire ropes on elevator traction sheaves, counterweight frames, or car hanging points, ensuring reliable connection between the rope and mechanical components. The U-shaped lock integrates high-strength clamping and anti-loosening functions, preventing the wire rope from slipping or detaching during elevator operation—an issue that could lead to serious accidents such as car fall or counterweight imbalance. Compatible with mainstream elevator models (including Schindler, OTIS, and KONE), these multi-spec U-shaped locks are suitable for residential, commercial, and industrial elevators, serving as a core safety guarantee for elevator traction systems. Exclusively supplied by Nanjing Zhuye Elevatorparts, a professional provider of high-quality elevator mechanical components, theElevator Wire Rope U-Shaped Lock (6MM/8MM/10MM/12MM) fully complies with international elevator safety standards (EN 81-20, GB 7588) and mechanical fastening component specifications. Manufactured with premium carbon steel or stainless steel and precision forging technology, it features excellent tensile strength, wear resistance, and anti-corrosion performance, winning trust from global elevator maintenance teams and manufacturers.
Nanjing Zhuye Elevatorparts adheres to the core philosophy of “Secure Clamping, Stable Operation” and implements strict quality control for the multi-spec elevator wire rope U-shaped lock. Each batch undergoes multi-stage pre-delivery inspections, including tensile strength testing, clamping force verification, anti-loosening performance detection, and corrosion resistance evaluation. The U-shaped lock adopts advanced materials and technologies: the lock body is made of high-strength carbon steel (45# grade) or 304 stainless steel, with a tensile strength of ≥ 600MPa to withstand the high tension of elevator wire ropes; the inner side of the U-shaped groove is equipped with anti-slip serrations, increasing friction with the wire rope to prevent slipping; the matching nuts use nylon insert locknuts or double nuts for anti-loosening, avoiding nut loosening due to elevator vibration; the surface is treated with galvanization or electrophoresis, adapting to harsh environments inside the machine room and shaft (-30℃ to 80℃). The four specifications (6MM/8MM/10MM/12MM) cover most elevator wire rope diameters, enabling precise matching and simplifying selection for maintenance personnel.
Step-by-Step Usage Guide for Elevator Wire Rope U-Shaped Lock (6MM/8MM/10MM/12MM)
To maximize the safety performance, service life, and operational stability of the Elevator Wire Rope U-Shaped Lock, strictly follow the professional guidelines provided by Nanjing Zhuye Elevatorparts for selection, installation, and maintenance:
1. Professional Selection & Pre-Installation Preparation
Installation must be performed by certified elevator technicians. Prior to selection, measure the diameter of the elevator wire rope accurately to choose the matching U-shaped lock (e.g., 6MM lock for 6MM wire rope; do not use mismatched specifications). Consult Nanjing Zhuye Elevatorparts’ technical team if unsure about compatibility. Preparation steps: Cut off the elevator’s main power supply and lock the power switch; place a “Maintenance in Progress” warning sign at the elevator entrance; stabilize the elevator car and counterweight with mechanical supports to avoid accidental movement; clean the wire rope fastening position and surrounding area to remove dust, oil stains, and rust; prepare professional tools such as a torque wrench, wire brush, and rust remover.
2. Correct Installation & Clamping Calibration
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Lock Installation: Take the matching-spec U-shaped lock from Nanjing Zhuye Elevatorparts, place the U-shaped groove over the wire rope at the preset fastening position, and align the lock’s through holes with the mounting holes on the traction sheave or frame. Insert the bolt through the holes and screw on the anti-loosening nut by hand to ensure initial fixation.
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Clamping Force Adjustment: Use a torque wrench to tighten the nut according to Nanjing Zhuye Elevatorparts’ recommended torque (25–35N·m for 6MM/8MM locks; 35–45N·m for 10MM/12MM locks). Ensure uniform force during tightening to avoid damage to the wire rope or lock body. After tightening, check that the wire rope is firmly clamped without obvious displacement—pull the rope gently by hand to confirm no slipping.
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Anti-Loosening Treatment: For elevators in high-vibration environments, add a spring washer between the nut and lock body, or use a lock washer to enhance anti-loosening performance. Mark the nut position with a marker to facilitate subsequent inspection of whether the nut is loose.
3. Post-Installation Testing & Daily Maintenance
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Function Testing: Restore the elevator’s power supply and switch to inspection mode. Operate the elevator to run up and down slowly, observing the U-shaped lock’s state through the inspection window—ensure no loosening, deformation, or abnormal noise. Use a torque wrench to recheck the clamping torque after the first 100 hours of operation.
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Daily Inspection: Maintenance personnel should check the U-shaped lock during daily machine room and shaft patrols: Observe the lock body and nut for corrosion, deformation, or looseness (compare with the marker line); check the wire rope at the clamping position for wear or indentation (excessive indentation indicates improper clamping force); clean the lock surface with a wire brush regularly to remove rust and debris.
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Regular Maintenance: Every 3 months, recheck the clamping torque of the nut and adjust if there is any deviation. Every 6 months, apply a thin layer of anti-rust lubricant to the lock body and bolt (avoid applying lubricant to the contact surface between the lock and wire rope, as it may reduce friction). For elevators in high-humidity or corrosive environments, shorten the maintenance interval to 1 month.
Recommended Replacement Cycle for Elevator Wire Rope U-Shaped Lock (6MM/8MM/10MM/12MM)
As a core fastening component enduring long-term high tension, mechanical vibration, environmental erosion (humidity, dust, temperature changes), and friction with wire ropes, the elevator wire rope U-shaped lock has a specified service life. Timely replacement is crucial to avoiding faults such as lock body deformation, bolt fatigue, or anti-loosening failure—issues that may lead to wire rope slipping or detachment, posing catastrophic safety risks to the elevator system.
1. Standard Replacement Cycle
Under normal operating conditions (elevator daily operation time 12–24 hours, operating environment temperature -30℃ to 80℃, humidity 10%–95%), the recommended replacement cycle for the U-shaped lock (regardless of 6MM/8MM/10MM/12MM) is 2–3 years. This cycle is determined based on Nanjing Zhuye Elevatorparts’ long-term field operation data, material fatigue tests, and global user feedback on elevator fastening components.
2. Adjustments for Special Scenarios
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High-Load & Harsh Environments: For elevators with long-term full-load operation (load ≥ 1600kg) or in harsh environments (e.g., coastal areas with high salt spray, industrial sites with strong corrosion), the replacement cycle is shortened to 1–1.5 years. High load increases the tension on the lock, while harsh environments accelerate corrosion and material fatigue.
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Low-Frequency Use & Stable Environments: For elevators with low usage frequency (e.g., villa elevators, small office buildings with daily operation time < 8 hours) and stable operating environments (constant temperature and humidity), the replacement cycle can be extended to3–4 years—only after Nanjing Zhuye Elevatorparts’ technicians inspect and confirm that the lock’s tensile strength, clamping force, and anti-loosening performance meet factory standards.
3. Immediate Replacement Conditions
Replace the U-shaped lock immediately if any of the following issues occur, regardless of its service life or specification:
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The lock body or bolt is severely corroded, cracked, or deformed, reducing its tensile strength and clamping capacity.
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The nut is loose and cannot be tightened effectively, or the anti-loosening structure (nylon insert, lock washer) fails.
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The anti-slip serrations on the U-shaped groove are worn out, leading to obvious slipping between the lock and wire rope.
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Professional testing confirms that the lock’s tensile strength is reduced by more than 30% compared to the factory standard, failing to withstand the normal tension of the wire rope.
In conclusion, the Elevator Wire Rope U-Shaped Lock (6MM/8MM/10MM/12MM) from Nanjing Zhuye Elevatorparts is a high-quality, precision-matched fastening component tailored for multi-spec elevator wire rope systems. By following the correct selection, installation, maintenance, and replacement guidelines, elevator maintenance teams can effectively ensure the reliable operation of the elevator traction system, eliminate potential safety hazards, and safeguard passenger and equipment safety. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic multi-spec U-shaped locks, plus professional support—including specification matching, on-site installation guidance, and prompt after-sales service. Trust Nanjing Zhuye Elevatorparts for the secure fastening of your elevator wire rope system.
