Description

Elevator counterweight guide shoe SG12/SG13 Brief Introduction

Product Name	Elevator counterweight guide shoe
Model Number	SG12 SG13
Quality	Original.Brand New
Payment	T/T. Paypal. Western Union
Delivery	3-5 Working Days
Packaging	Packed by carton

Elevator Counterweight Guide Shoe SG12/SG13 – Nanjing Zhuye Elevatorparts

The elevator counterweight system is a key component for balancing the car weight and ensuring smooth operation, and the guide shoe serves as the “stable guide” that keeps the counterweight running along the guide rail. The Elevator Counterweight Guide Shoe SG12/SG13 provided by Nanjing Zhuye Elevatorparts is a high-performance guiding component tailored for elevator counterweight systems, covering two models (SG12 and SG13) to match different guide rail specifications. It is widely compatible with mainstream elevator brands such as Schindler, OTIS, and KONE, providing reliable guiding, shock absorption, and wear resistance for the counterweight’s up and down movement. Crafted with high-strength cast iron bases, wear-resistant polyurethane liners, and precision-adjustable structures, this guide shoe meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.

Nanjing Zhuye Elevatorparts adheres to the core philosophy of “Stable Guidance, Durable Operation” and implements strict quality control throughout the production process of the SG12/SG13 counterweight guide shoe. Each unit undergoes rigorous testing, including load-bearing capacity verification, wear resistance testing, shock absorption performance detection, and dimensional accuracy calibration. The guide shoe’s cast iron base has excellent structural strength, supporting a maximum load of 500kg per pair, and can withstand the long-term impact of the counterweight. The polyurethane liner has a low friction coefficient (≤ 0.15) and excellent wear resistance, with a service life 3 times longer than ordinary rubber liners. The precision-adjustable bolt structure allows technicians to fine-tune the gap between the liner and the guide rail, ensuring the counterweight runs smoothly without shaking. The integrated oil injection hole design facilitates regular lubrication, further enhancing wear resistance and extending service life.

Usage Guide for Elevator Counterweight Guide Shoe SG12/SG13

Correct installation, adjustment, and maintenance are crucial to maximizing the performance of the SG12/SG13 elevator counterweight guide shoe. Nanjing Zhuye Elevatorparts recommends that only certified elevator maintenance technicians perform related operations to avoid counterweight jamming or elevator operation failures.

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 counterweight model and guide rail specification match the SG12/SG13 guide shoe (select SG12 or SG13 according to the guide rail width). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the landing doors and machine room entrance. Use a hoist to stabilize the counterweight to prevent accidental movement during operation. Finally, prepare professional tools such as a socket wrench, screwdriver, feeler gauge, and lubricating oil, and clean the counterweight’s guide shoe installation position and guide rail surface to remove dust, debris, and old lubricant.

2. Installation & Adjustment

2. Installation & Wiring

If replacing the old guide shoe, first remove the fixing bolts of the old guide shoe and take it down from the counterweight. Inspect the counterweight’s installation base for wear or deformation (repair or replace if necessary). Take the new SG12/SG13 guide shoe from Nanjing Zhuye Elevatorparts, install it on the counterweight base, and temporarily fix it with bolts. Use a feeler gauge to adjust the gap between the guide shoe liner and the guide rail (recommended gap: 0.5-1mm) by turning the adjustable bolts. After adjustment, tighten the fixing bolts to ensure the guide shoe is firmly fixed without looseness. Apply an appropriate amount of special elevator lubricating oil to the contact surface between the liner and the guide rail to reduce friction during operation.

Debugg3. Operation & Daily Maintenance

Remove the counterweight hoist, restore the power supply, and switch the elevator to inspection mode. Operate the elevator to run up and down slowly, and observe the counterweight’s operation: there should be no abnormal noise, shaking, or deviation. After 1 hour of stable operation, stop the elevator and check the guide shoe’s temperature (slightly warm is normal; abnormal heat indicates excessive friction). For daily maintenance, inspect the guide shoe during monthly shaft patrols: Check if the liner has obvious wear (wear depth exceeding 3mm indicates the need for attention); confirm the fixing bolts are tight and the adjustable structure is intact; clean the guide rail surface and reapply lubricating oil every 3 months. For elevators in high-traffic areas or harsh environments, increase the inspection frequency to biweekly.

Replacement Cycle of Elevator Counterweight Guide Shoe SG12/SG13

The replacement cycle of the SG12/SG13 counterweight guide shoe is closely related to operating conditions and usage frequency. Under normal circumstances (elevator daily operation 12-24 hours, shaft temperature -10℃ to 60℃, low dust, regular lubrication), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 2-3 years. This cycle is determined based on long-term field operation data, liner wear tests, and base fatigue tests, fully considering the wear of the polyurethane liner and the structural stability of the cast iron base.

For elevators in high-traffic areas (e.g., large shopping malls, airports with daily operation ≥ 20 hours) or harsh environments (e.g., industrial sites with heavy dust, coastal areas with high humidity), the replacement cycle should be shortened to 1-1.5 years. High-frequency operation accelerates liner wear, while harsh environments cause corrosion of the cast iron base and reduce lubrication effectiveness. 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 liner wear and base condition meet safe operation standards.

Replace the guide shoe immediately if any of the following issues occur, regardless of its service life: The polyurethane liner is severely worn, cracked, or falls off; the cast iron base is deformed, cracked, or has obvious corrosion; the counterweight runs with abnormal noise, shaking, or deviation, and the fault is confirmed to be caused by the guide shoe; the adjustable bolts fail, making it impossible to adjust the gap between the liner and the guide rail; the guide shoe causes excessive wear on the guide rail (wear depth exceeding 0.5mm).

The Elevator Counterweight Guide Shoe SG12/SG13 from Nanjing Zhuye Elevatorparts integrates stability, durability, and compatibility, providing reliable guiding support for elevator counterweight systems. By following the correct usage, maintenance, and replacement guidelines, you can effectively ensure the smooth operation of the counterweight system, reduce wear on guide rails and other components, and improve the overall safety and service life of the elevator. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic SG12/SG13 guide shoes, as well as professional services including model matching, on-site installation guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the stable operation of your elevator counterweight system.

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