Cage Arms

This is the bubble’s first contact!

The first point of contact for your bubble is critical to ensuring film quality and stability. Traditional Teflon rollers often wear down, leading to marking, pinching, and even tearing of the bubble. Many operators back the bubble off from the rollers to avoid these issues, but this compromises the benefits you’ve invested in.

Pearl’s SM24 Roller-Less Cage Arms are the ultimate solution, offering unmatched durability, maintenance-free performance, and superior bubble stabilization. Designed as exact retrofits for most manufacturers, they’re the perfect upgrade for your existing cage.

Why Choose Pearl’s Cage Arms?

Pearl’s SM24 “Extreme Slip” surface technology revolutionizes bubble control by eliminating the common issues associated with Teflon rollers. With a focus on durability, precision, and ease of use, our cage arms deliver long-lasting performance and superior results. With Pearl, you get better film, faster!

Download Product Flyer

Engineered to Your Needs:

  • No Marks, No Damage: SM24 arms will not leave marks, even on the most sensitive or tacky films.
  • Maintenance-Free: Unlike Teflon rollers, SM24 arms require no maintenance, saving you time and costs.
  • Exact Retrofits: Designed to fit most manufacturers’ cages with no drilling or modifications needed.
  • Unmatched Durability: Pearl’s cage arms are built to last—since their introduction in 1998, we’ve never had to replace an arm.
  • Customizable Options: Custom bubble sensor mounts are available upon request to meet your specific needs.

Reifenhauser & W&H

Pearl’s SM24 arms are custom made to retrofit into your existing aluminum castings. No additional hardware is needed.

Sano & Custom Arms

Retrofit arms can be made in any shape or size. The arm shown below is 120” (3050 mm) long. Arms can be covered with our Ultra-Low COF blue plastic or utilize our SM24 extreme surface modified coating.

Doci Retrofits

SM24 arms are made to fit rare and unique cages.

Gammatec Retrofits

Hundreds of cages have been retrofitted with these arms. Complete with metric threads. Bolt on arm and have better film in less than an hour!

Kiefel & Reinhold Arms

Exact retrofits into all iris style cages. Designed to match metric threads and diameters.

Gloucester Retrofits

Simply slip off old troublesome roller arms and slip on one of Pearl’s exact retrofits for quick and easy installation. Experience immediate improvement on your film line.

Alpine & Reinhold Retrofits

Hundreds of cages have been retrofitted with our easy replacement arms. Arms can be installed quickly and easily.

No more rollers to replace

 Better stabilization through positive contact

Any size, shape, or design!

Upgrade Your Cage Today

Don’t let outdated Teflon rollers compromise your bubble control and film quality. Pearl’s SM24 Roller-Less Cage Arms are the ultimate solution for durable, maintenance-free, and mark-free performance.

Contact us today to learn more about how Pearl’s Cage Arms can transform your blown film production process.