1. Drawing and geometry
Provide the core drawing, key dimensions, step-lap arrangement, assembly requirements and dimensional tolerances.
A practical specification guide for transformer manufacturers, purchasing teams and engineering teams.
Chenfan Electric manufactures transformer core laminations and assemblies, with CRGO silicon steel cutting and processing. Our production focus is dimensional consistency, burr control and reliable assembly to the agreed drawing.
Material grade, coating, stacking requirements, inspection criteria and delivery arrangements are confirmed for each order.

Provide the core drawing, key dimensions, step-lap arrangement, assembly requirements and dimensional tolerances.
Specify the CRGO grade, sheet thickness, coating requirements and any agreed material acceptance criteria.
Agree the measurement method, burr limits, stacking requirements and the inspection records needed for the project.
State the order quantity, delivery schedule, destination requirements and preferred packaging for handling and transport.
The three-page guide covers core laminations, core assembly, CRGO processing and a drawing-based enquiry checklist.
Download the product capability guide (PDF)