China Erzhong, a subsidiary of China National Machinery Industry Corporation Ltd. (SINOMACH), is one of China’s largest R&D and manufacturing bases for major technical equipment. It plays a vital role in the development of the country’s foundational industries, including metallurgy, power generation, petrochemicals and shipbuilding. Its production equipment operates continuously under high loads year-round, placing extremely stringent requirements on the reliability and stability of its core power systems.
The hydraulic station system at the die-forging plant of China National Erzhong Group is the core power source for the operation of its large-scale forging equipment. The drive motors originally paired with this hydraulic pump unit were two 450 kW high-voltage motors from TECO-WESTINGHOUSE (TECO Motor brand). Since their installation and commissioning in 2010, these motors have been running reliably for over 15 years fully demonstrating their outstanding durability and dependability.
As the equipment enters an extended service period, to ensure production continuity and avoid major risks of full-line shutdown caused by unexpected failure of primary power equipment, China Erzhong decided to procure backup motors of the same brand and specifications for these two units. This enables quick replacement and minimizes potential downtime.
Key Requirements:
Component Consistency: The backup motors must be identical to the original onesin model (AEZK), power rating (450 kW), voltage, speed, installation dimensions and interfaceconfiguration, ensuring “plug-and-play” replacement without modifications tofoundations or piping.
Quality Reliability: The performance, materials and manufacturing standards ofthe backup motors must match the high level of the originals, capable ofwithstanding continuous load impacts from hydraulic pump operation.
Timely Delivery: As critical spare parts, the customer has clear deliveryexpectations, requiring suppliers to have efficient supply chain support.
Professional Service: The supplier must possess in-depth knowledge of TECOhigh-voltage motors and provide accurate technical coordination andongoing service support.
In response to China Erzhong’s precise needs, Weima Electric promptly developed a specialized “Genuine Parts, Efficient Support” solution:
Precise Matching andVerification:
Weima Electric’s technical team immediately retrieved historical model records for TECO motors and verified the nameplate parameters and installation drawings with the customer’s on-site technicians.
Confirmed that the required backup model is the TECO AEZK series 450 kW high-voltage three-phase induction motor, known for its robust construction, excellent insulation system, and effective cooling—particularly suitable for long-term pump load operation.
Genuine Factory SupplyEnsures Quality:
As a core partner of TECO Motor, Weima Electric placed the order directly with the TECO factory, ensuring genuine OEM products. The manufacturing processes and materials (Class F insulation, Class B temperature rise rating) are consistent with the original motors and incorporate the latest process improvements, delivering the same reliable quality.
Efficient Supply Chainand Delivery:
Activated a priority green channel for key accounts, coordinating TECO’s production scheduling and logistics resources, with full tracking of order status.
Within the agreed delivery period, two brand-new 450 kW TECO high-voltage motors were transported safely and intact to China Erzhong’s designated equipment warehouse, completing strategic spare parts stocking.
Through this cooperation, Weima Electric delivered multiple significant values for China Erzhong:
Ensures ProductionContinuity and Mitigates Major Risks: Theavailability of critical spare parts acts as a “safety fuse” for keyequipment operation, significantly reducing the risk of unplanned downtimedue to core power failures. This safeguards production schedules and orderfulfillment for national key projects, generating substantial potentialeconomic value.
Enables SeamlessReplacement and Saves Retrofit Costs: Fullyidentical “OEM-original” backup motors ensure zero-modification, rapidinstallation when replacement is needed, saving valuable maintenancewindows and avoiding extra installation or modification costs due todimensional or parameter mismatches.
Extends Trusted BrandPartnership and Simplifies Management: Theongoing commitment to the TECO Motor brand, backed by two decades ofproven performance, has eliminated the need for performance verificationand run‑in processes for new equipment, thereby reducing operationalrisks. This standardized brand approach also facilitates the unifiedmanagement of spare parts and maintenance expertise, ultimately loweringoverall maintenance complexity.
Weima Electric has delivered not only two high-quality motors, but also confidence and commitment to ensuring stable future production for the customer. We look forward to continuing to support China Erzhong and other leading industrial enterprises with professional products and services, driving the future forward with reliability.
