Replacement and repair business

Applicable scenarios: For situations where the main shaft is severely damaged and cannot be repaired on the tower, specifically including:

The main shaft is fractured, with cracks extending to the internal structure

The wear on the journal exceeds 0.5mm, and the precision cannot be restored through on-site repair

The bending deformation of the main shaft exceeds the standard (straightness deviation > 0.1mm/m)

The mating surface between the bearing seat and the main shaft is severely damaged

Service Process

Fault confirmation: Through on-site flaw detection and dimensional measurement, it is determined that the main shaft has no repair value on the tower

Quick replacement: Equip a spare main shaft for lifting and replacement, coordinate with gearbox and blade debugging, and restore wind turbine operation in as fast as 3 days

Return-to-factory repair: The faulty spindle is transported to a professional workshop for in-depth repairs such as straightening, welding, and heat treatment, or for replacement of core components

Delivery and acceptance: After undergoing dynamic balance testing and fatigue strength verification, the repaired spindle is sent back to the customer as a spare part once it passes the inspection

Core Advantages: Rapid restoration of wind farm power generation capacity, professional workshop equipped with large-scale shaft processing and repair capabilities, ensuring that the service life of the main shaft after maintenance is close to that of a new machine