1.Product Description

Hongwang specializes in high-performance CRGO silicon steel laminations and cores. We provide low core loss, high permeability CRGO Lamination Cores for power, distribution, and special transformer manufacturers. Precision manufacturing ensures optimal transformer performance

2.Product Overview

CRGO Lamination Cores

Cold Rolled Grain Oriented (CRGO) silicon steel is the critical material for transformer cores, offering high magnetic permeability and low core loss in the rolling direction. Hongwang utilizes advanced technology and precision equipment to process premium CRGO steel into accurate laminations, ensuring maximum energy efficiency and optimal performance for your transformers.

3.Our Product Range & Core Strengths

Hongwang Holding Group provides truly integrated CRGO solutions, controlling the entire production process under one roof. This vertical integration allows us to guarantee exceptional quality, cost-effectiveness, and supply stability from the raw material to your finished  core.

The Hunan Hongwang Core Factory has integrated the entire production process through systems including CRM, APS, PDCS, Nesting System, MES, WMS, WCS, DCS, and SCADA, achieving comprehensive data connectivity from the equipment level (L1) to the management level (L3).

(1)Our End-to-End Manufacturing Excellence:

 •Advanced Material Preparatio

a. Precision cutting and slitting of CRGO steel

b. Surface coating application (C-3, C-5)

c. Stress relief annealing treatment

 • Automated Core Assembly

a. Robotic stacking systems for precision

b. Step-lap and multi-step lap technology

c. Computer-controlled assembly processes

 • Quality Assurance & Testing

a. Core loss measurement systems

b. No-load performance testing

c. Dimensional accuracy verification

d. Mechanical integrity testing

(2)CRGO Laminations        

• Material Grades: Various grades including M3, M4, M5, M6, and high-grade Hi-B steel.

• Surface Coating: C-3 inorganic coating, C-5 organic-inorganic hybrid coating.

• Available Thickness: 0.23mm, 0.27mm, 0.30mm, and other specifications.

• Core Types: UI&EI Cores, C&Three-Phase Cores, Toroidal Cores.

4.Core Advantages

• Superior Material Performance: Low core loss and high magnetic induction.

• Precision Manufacturing: Advanced CNC lines for tight tolerances and minimal burr.

• Technical Expertise: Professional support from material selection to design optimization.

• Stringent Quality Control: Comprehensive testing from raw material to finished product.

• Flexible Customization: Tailored solutions for standard and complex requirements.

5.Applications

• Power Transformers

• Distribution Transformers

• Reactors & Inductors

• Instrument Transformers

• Special Transformers (Rectifier, Arc Furnace, New Energy)

6.Q&A

Q1: What CRGO material grades and thicknesses do you offer?

We provide various CRGO silicon steel grades including M3, M4, M5, M6, and high-grade Hi-B materials. Available in thicknesses of 0.23mm, 0.27mm, 0.30mm, and other specifications to meet different transformer design requirements.

Q2: What types of core laminations can you produce?

We manufacture diverse core lamination types including EI Cores, UI Cores, C Cores, Three-Phase Three-Limb/Five-Limb Cores, Toroidal Cores, and custom-designed laminations according to your specific requirements.

Q3: Do you provide technical support for core design?

Yes, our engineering team offers comprehensive technical support throughout your design phase. We provide valuable insights and design optimization advice to enhance your transformer's performance and cost-effectiveness.

Q4: What is your production capacity for large orders?

With our advanced manufacturing facilities and efficient supply chain management, we have the capacity to handle large-volume orders while maintaining consistent quality and meeting delivery deadlines.