CALM has been supplying conveyor roller covers to the aluminum extrusion industry for many years. Each conveyor roller sleeve is made-to-order based on customer needs to ensure the machine can run properly.
We offer a wide range of industrial felt materials. PBO, Kevlar, Nomex, and Polyester are available for different temperature zones during extrusion. Besides, resin treatment can be applied on request to improve durability.
Available in various sizes and thicknesses, our covers can be custom ordered to fit your specific needs. Installation and removal are quick and easy for cleaning or replacement.
SPECIFICATIONS Working Temp
Inner diameter (ID): 41mm - 127mm PBO - 600℃
Thickness: 5mm - 14mm Kevlar - 480℃
Length: Custom made Nomex - 280℃
Polyester - 180℃
| PBO | Kevlar | Nomex | Polyester | |
| Type | Roller-PK | Roller-K | Roller-PE | Roller-PE |
| Material | PBO | Kevlar | Nomex | Polyester |
| Color | Brown | Yellow | Beige | White |
| Inner Diameter | 41 43 44 45 49 50 51 60 61 62 63 76 77 80 81 82 90 95 100 101 102 114 115 120 127 | |||
| Length | custom made as customer's request | |||
| Thickness | 5mm - 14mm | |||
| Working Temperature | 600℃ | 480℃ | 280℃ | 180℃ |
| Mostly Suitable for | before fly cut (ultra-high temp. zone) Effectively avoid scratch marks made by graphite. | after fly cut & run out table (high temp.zone) | the output table after straightening machine (middle temp. zone) | finished saw table & room-temperature area only (low temp. Zone) |
| Packing Way | packed with film and put in cartons | |||
| Shipping Way | express/air/ocean/railway | |||
| Lead Time | about one week | |||
| OEM | available | |||
| Techniques | needle punched | |||
| Additional | treated with resin, hard type treatment | |||
Ask a quick quote for conveyor roller sleeve!
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We can always finish the order about 3-7 days after receiving the payment. And we can send goods by courier/ocean/air/train as your demand.
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Four industrial felt materials are of high-quality with different heat resistances range from 180-600˚C for aluminum extrusion. These new-tech fibers are the primary material of conveyor roller cover / conveyor felt belt / spacer sleeves / felt pads / felt strip / heat resistant timing belt.
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Calm-brand conveyor felt rollers are specially developed for customers with high requirements for the surface. Defects such as material dust, unevenness, scaling, and aluminum pollution are not present. Industrial felt products adopt advanced new technology, making them more durable and cost-effective with a smooth surface. Particularly suitable for producing high-quality aluminum products with electrophoretic or polished surfaces.
The working principle of the carding machine is to open and comb the PBO fibers. Therefore, all the curly fiber lumps can become a straight single fiber. Meanwhile, it can remove the impurities and short lint in the fibers. In the final stage of carding, the needle machine will punch the pure PBO fibers to become the felt layer. You can click here to get some detailed information about carding.
You can clearly get across the needle-punched technique through this video. It shows how the needle machine works with PBO+Kevlar felt tube. PBO felt layer goes around the roller mold, and needles punch evenly on the felt. This step makes the felt roller more compact and stronger. As you can see, the felt roller's surface is smooth and clean without a woven pattern, which can provide great protection to the profile.
Here is a video that shows how to cut the PBO felt tube with an electric rotary fabric cutter. The skillful craft ensures a fast cutting with a burr-free edge. What's more, no matter in specification or quality, all Calm felt tubes are perfect satisfy with the requirement of our clients.
Even when production is over, it doesn't mean that our work is over. Our professional quality control staff will inspect all the finished products with various testing equipment. To ensure that no broken needles remain inside the felt and that all products are in spec. Calm always insists that only products that pass a series of rigorous tests are delivered to our customers.
On the one hand, full resin or semi-resin treatments are available to improve the wear resistance and durability. The service life of the hardened felt is nearly double that of the original. On the other hand, it prevents aluminum swarf or dirt from sticking to the felt, which can better protect the profile surface.
Calm offer OEM solution with abundant labors and a variety of advanced equipment. We supply both marking and non-marking industrial felt tube. This means you can customize with or without our logo, or even mark a specific logo as you want.
Calm is a top supplier of heat-resistant felt products in China with over 18 years of experience. We only use premium high-temp fiber to produce all our heat resistant felt products. And we offer various industrial felt products for aluminum extrusion, such as felt belts, felt pads, felt strips, and more. If you want to learn more information, please feel free to contact us at toby@gdcalm.com. We look forward to hearing from you!