Reliable, long-lasting belting is critical to ensure aluminum extrusions are moved safely, efficiently and defect free throughout the production process.
Use of subpar belting in the aluminum industry will result in high material scrap rates and frequent belt changes all leading to additional labor requirements, increased costs, and excessive downtime. At Megadyne, we offer a wide range of belting products designed for use in the aluminum extrusion industry.
In addition to providing needle tubes, pads, and woven synchronous and non-synchronous belts — available in polyester, Kevlar, PBO, or Nomex — we offer full fabrication services; we can apply specialty resins for improved belt wear and temperature characteristics, stitch cleats and guides, and create truly endless belt designs.
Our belting products are used in a wide range of applications to ensure materials are transported successfully throughout each stage of aluminum production. Megadyne offers tailored solutions to meet specific application needs.
Below are a few of the most common applications for our belting products and accessories:
- Needled rollers
- Needled pads
- Needled belts
- NOVA-needled polyester and rubber-impregnated belts
- Woven products
- Spacer bars and aging furnace crates
- Special fabrication
Various belting materials are available to meet unique application needs. In the aluminum industry, the closer a belt is to the extruder, the higher the temperature.
Megadyne belting and rollers are designed to be heat-resistant, but ideal materials will differ depending on the specific application temperature.
We can construct belting products from the following materials:
- PBO — Currently manufactured by the Toyobo Corp. in Japan, the synthetic polymer polybenzobisoxazole, or PBO, is 1.6 times stronger than Kevlar. Able to withstand temperatures up to 1,200 °F, PBO offers the highest heat resistance available for aluminum extrusion. (Zylon is the trademarked name for PBO.)
- Kevlar — The trademarked name for an aramid fiber manufactured by DuPont, this synthetic material offers high strength and heat resistance. Kevlar is made from a solution of monomers 1,4 phenylenediamine, and terephthaloyl chloride through a condensation reaction. Kevlar can typically withstand temperatures up to 950 °F in aluminum extrusion applications.
- Nomex — The trademarked name for a flame-resistant aramid developed by DuPont, Nomex is similar to Kevlar but is a meta-aramid, whereas Kevlar is a para-aramid; as a meta-aramid, Nomex features different locations for different compounds. These differing locations allow for good thermal, chemical, and radiation resistance. However, Nomex has lower strength and heat resistance than Kevlar. In aluminum extrusion processes, Nomex can only withstand temperatures up to 450 °
- Polyester — A synthetic polymer made of monoethylene glycol and purified terephthalic acid (PTA), or its dimethyl ester dimethyl terephthalate (DMT), polyester does not have high heat resistance. Therefore, it’s typically used at the end of the extrusion process, where the profile is cooler. Polyester can withstand temperatures up to 300 °F in aluminum extrusion applications. There’s also a huge demand for polyester timing belts outfitted with Kevlar coating, which allows for higher heat resistance.