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CALM offers conveyor roller covers for the aluminum extrusion industry. Each seamless felt roller is made-to-order to ensure the machine can run properly. 

We can produce different sizes of rollers according to customer requirements.


We also provide a wide range of materials for different temperature zones. The four high-performance fibers - PBO, Kevlar, Nomex, and Polyester, have different temperature resistance. In addition, resin treatment is available on request to improve durability.



SPECIFICATIONS                                                  Working Temp                                         

Inner diameter (ID): 41mm - 127mm                         PBO - 600℃

Thickness: 5mm - 14mm                                              Kevlar - 480℃

Length: Custom made                                                  Nomex - 280℃

                                                                                          Polyester - 180℃ 






               Conveyor Felt Roller

  PBO felt roller
                      Kevlar felt roller
                        Nomex felt roller
                      Polyester felt roller
  Type feltRoller_ico6
  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 Yes
  Techniques Needle punched
  Additional Treated with resin, hard type treatment



  • Q How many kinds of felt rollers do you offer?

    We have 4 heat resistant fibers to choose from - PBO, Kevlar, Nomex, and Polyester. Also, according to your needs, we can produce a blend structure with two different felts in a workable way.
  • Q What is the function of felt roller sleeve?

    As we all know, the aluminum profile fresh from the extruder is soft and hot. Therefore, in order to protect the surface of the extrusion, the conveyor roller cover made of heat resistant felt is necessary.
  • Q What is the superiority of your conveyor felt tube?

    Traditional materials such as graphite have low buffering and easy to damage the profile surface with scratch marks. Ordinary felt roller is low strength and has poor resistance to high temperatures. And it's easy to get moldy inside, which leads to a short service life. In contrast, Calm heat resistant conveyor roller cover is more durable and efficient.
  • Q What is the blend structure of felt roller?

    Take PBO + Kevlar felt tube as an example. Our production standard is 3mm PBO layer + 7mm Kevlar layer. However, you can also customize the fiber layer with 4mm, 5mm, or any other thickness you want. The thicker the PBO layer, the more durable it is, but the more it costs. All depends on your budgets and needs.


How to produce the PBO+Kevlar conveyor roller cover? The workers will put PBO and Kevlar fiber together into the needle machine. Then needles punch around the correct mould and make the precise size of the felt roller.



It shows the production process of the polyester conveyor roller sleeve. The needles punch the raw material around the roller mould. Finally, a heat resistant conveyor felt roller cover for the aluminum extrusion is completed.



This is the manufacturing of PBO+Kevlar felt tube that can resist 600℃ for the aluminum extrusion industry. PBO fiber goes around the roller mould, and needles punch to form a conveyor roller cover.


   For more details of heat resistant conveyor roller cover!





 Endless & Seamless: 
Calm-brand round needled conveyor roller cover features no joints and seams. It has no weak points with highly uniform thickness.

 Accurate dimension: 
With the complete forming equipment, our heat resistant felt tubes can install on existing conveyor rollers prefectly without any deviation.
Depending on your budget, you can choose the synthetic fibers you need. And we can process the felt roller sleeve into pure or blend in a reasonable ratio.
  Smooth felt surface:
With the mature needle punched technique, the surface of felt roller cover is smooth with no woven pattern, which provides excellent protection to aluminum.
 100% pure felt: 
With advanced inspection equipment, we can make sure that our conveyor roller cover has no residue of broken needles or hidden impurities. So it won’t leave any stains and dents on the aluminum extrusion.
 New-tech fiber: 
Compared to traditional material graphite, heat resistant felt roller sleeve has a soft touch with excellent abrasion-resistant.  It does not easily scratch or leaves marks on the surface of aluminum profiles as graphite does.
 Resin hardening:
Full resin or semi-resin treatments are available to improve the wear resistance and durability of the felt roller cover. It also prevents aluminum swarf or dirt from sticking to the felt, reducing damage to the surface of the aluminum profile.
 High strength: 
The high-quality felt tube sleeve has a thick fiber layer with high density. PBO conveyor roller cover can be made not only from pure PBO fibers but also from PBO+Kevlar to save costs. CALM can also customize fiber layer thickness according to customer requirements. 

   Ask a quick quote for conveyor felt roller sleeve!

Why choose us

Fast Delivery Time


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.

Materials Used


These four synthetic fibers with different functions are the main material of heat resistance conveyor felt tube / conveyor felt belt / spacer sleeves / felt pads / felt strip / timing belt, which can resist temperature at 180-600˚C for aluminum extrusion.



Calm-brand conveyor felt tubes are specially developed for the customers who have a high requirement for surface. Impossible to appear the material dust, unevenness, scaling, aluminum pollution, and other defects. With a smooth surface, the product adopts advanced new technology and is more durable and cost-effective. It is especially suitable for the production of high-quality aluminum products with an electrophoretic or polished surface.

   To know more about our services!


High quality, High density
High intensity
Optimal thermal 
insulation property
Wide selection for materials/products
Extremely smooth 
felt surface
Strict inspection procedure 
Professional using indication
Competitive price
Good after-sale service



Each PBO conveyor roller cover is packed 

with shrink film and put in a carton.


Calm-brand Kevlar tubes can withstand temperatures of up to 480℃.


Our industrial felt products are placed orderly 

in finished product warehouse.


Each finished Kevlar felt tube is shrink-wrapped and will be shipped in cartons.


Packing of Polyester felt tube sleeves

with 180℃ heat resistance.


A carton of Kevlar felt roller covers 
for conveyor system in aluminum extrusion.

    Any requirements for product packing?

Get In Touch With Our Team

Quick Links


Need some help?
Are you working on a project, and need to discuss a solution, Let us help you find the right product, Call us on 
telephone: +86-0757-85890918,  
 email us : toby@gdcalm.com

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