If you run a Sweco or Rotex screener, chances are there's a corrugated boot keeping product moving between your machine and the equipment around it. These accordion-style rubber connectors have been a fixture on vibratory and gyratory screeners for decades—and for many maintenance teams, they're still the trusted fix that keeps a line running. At Siftex, we manufacture and stock corrugated boots and sleeves in a range of proven materials, custom-fit to your equipment and shipped fast from South Windsor, CT.

What Are Corrugated Boots?

Corrugated boots—also called corrugated sleeves—are flexible rubber connectors with molded, accordion-like convolutions. Those ridges are what make them work: they absorb the constant vibration and gyration of screening machinery while maintaining a sealed connection between the screener's inlet or discharge and the equipment above or below it. That flexibility protects rigid piping and spouting from fatigue, contains dust and product, and keeps material flowing where it should. They're part of our broader family of corrugated sleeves and bellows, engineered for connections in vibratory and gyratory machinery.

Sweco vs. Rotex: Which Style Fits Your Screener?

The two most common corrugated boot styles are named for the machines they typically fit, and the easiest way to tell them apart is the neck:

• Longer-neck boots (Sweco-style): Designed for round vibratory separators, where the extended neck accommodates the machine's motion and connection geometry.
• Shorter-neck boots (Rotex-style): Designed for gyratory screeners, where a shorter, more compact neck provides the right fit and clearance.

If you're not sure which style your machine takes, our team can identify it from a photo, a part measurement, or even a worn-out boot you send our way.

Material Options for Corrugated Boots

Not every material behaves the same way on a screener deck. Siftex corrugated boots are available in a range of compounds so you can match the boot to your product, temperature, and sanitation requirements:

• EPDM: Excellent resistance to heat, weathering, and a wide range of chemicals—a versatile all-around performer.
• Red silicone: High-temperature capability with lasting flexibility for demanding processing environments.
• Translucent silicone: The same high-temperature performance with the added benefit of visible product flow.
• White neoprene: A durable, general-purpose option where a lighter color is preferred.
• Black neoprene: A rugged, economical workhorse with good oil and abrasion resistance.
• Natural gum rubber: Outstanding elasticity and abrasion resistance for high-flex, high-wear applications.

How to Choose the Right Material

Start with what the boot touches and where it lives: product type, operating temperature, washdown or sanitation practices, and exposure to oils or chemicals. Food, dairy, pharmaceutical, chemical, plastics, and metal processors all screen differently—which is exactly why we don't believe in one-size-fits-all. Tell us your application and we'll recommend the compound that will last.

Why Maintenance Teams Still Trust Corrugated Boots

Corrugated boots are one of the longest-serving connector designs in the screening industry, and that longevity is the point. They're simple, proven, and familiar—when a boot wears out, an experienced maintenance tech knows exactly what to order and how to install it. Siftex keeps that simplicity working for you by stocking common configurations and custom-manufacturing anything we don't have on the shelf, whether you need one boot or ten thousand.

Thinking About Upgrading?

If you're modernizing a line, it's also worth knowing your options. Many facilities are pairing legacy screeners with newer connection systems like BFM® fittings, which snap in and out without tools. Either way, Siftex supports both paths—we'll keep your existing corrugated boots supplied, and we'll walk you through alternatives when the time is right.

Ordering Tip: Getting the Fit Right

To get an exact fit, have your machine make and model handy, along with the boot's diameter and neck length. Better yet, send us the old boot or a few photos—our team will take it from there.

Get Better Connected

Since 1983, Siftex Equipment Company has helped processors keep their screening equipment sealed, safe, and running. Whether you need a Sweco-style or Rotex-style corrugated boot in EPDM, silicone, neoprene, or natural gum rubber, our bilingual team is ready to help you spec it right the first time. Request a quote or contact us today—and Get Better Connected.