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Filament Winding

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Filament winding contains a variety of variables; speed changes, material travel distances (outside vs. inside tows), stops, take up, etc. Effective, consistent, and precise tension control of individual strands of material ensures a uniform final product from start to finish. Without precise, consistent tension control of each strand at the same tension, weak spots like voids and delamination can occur.

Montalvo Filament Winding composites tension control solutions gives composites manufacturers the peace of mind that every strand/tow/filament is at the precise tension setpoint required for high quality end product from start to finish ensuring less waste and more product.

Filament Winding Process with Tension Control Zones

Closed Loop Unwind Zone
Precise tension control on each individual tow as it enters the resin bath and ultimately the winding process ensure consistent and uniform resin application, quality and consistency of the tows as they form the end product, and ultimately higher quality end product as all tows are being wound at a uniform tension specific to the properties/requirements of the material you are utilizing.

For filament winding applications in the unwind zone we utilize:


Driven Nip Zone
As a final position to set consistency, uniformity, and quality before beginning the winding process, the driven nip zone creates a final tension isolation point for all the tows maximizing end product results.

Filament winding tension control in the driven nip zone utilizes: