Overview
This rectangular (elliptical) adjustable winding mandrel is specifically engineered for non-circular coil production. Unlike fixed-size tooling, this mandrel allows independent adjustment in both width and length directions, enabling one tool to produce a wide range of rectangular, square, or elliptical coils. It is the ideal solution for manufacturers handling multiple coil geometries without investing in dozens of dedicated mandrels.
Key Features
Multi-shape capable – Works for rectangular, square, and elliptical coils
Independent dual-axis adjustment – Width and length are adjusted separately for precise sizing
Positioning marks – Scale or index marks for repeatable setup
Rigid structure – Maintains shape and stability under winding tension
Durable construction – Built for long-term industrial use
Benefits
One mandrel replaces many fixed-size rectangular/elliptical mandrels
Eliminates waiting time for custom-made tooling
Quick changeover between different coil dimensions
Reduces tooling inventory and storage space
Lowers overall production costs for small to medium batches
Typical Applications
Rectangular transformer coils
Reactor coils
Square electromagnetic coils
Elliptical sensor coils
Custom-shaped inductors
Generator field coils (rectangular type)
Compatibility
Fits most standard horizontal winding machines. Custom shaft adapters and mounting plates available upon request.
Mr. LEE – Export Manager
Jinan Jiuyuan Machinery Co., Ltd.
118 meters from Jiahe South Bridge, Zhangxia Street, Changqing District, Jinan City, Shandong Province, China – 250308
Tel: +86-13421423282
Fax: +86-531-87591908
Email: STOJIUYUAN@163.COM, LIQIUBOYANG@gmail.com