THE MEGADYNE GROUP
Conveyor Beltsfor Aluminum Extrusion
POWERING GLOBAL INDUSTRY
EUROPE • AMERICAS • AFRICA • ASIA • AUSTRALIAUSA +1 (888) 755-7450 | CANADA +1 (800) 847-5204 | WWW.SAMPLA.COM
Aluminum Extrusion LineStandard layout of an aluminum extrusion production line.
Aluminum Extrusion Process
After being extruded the profile falls into rollers that convey it further down the line. The first rollers have to hold the most amount of heat, so we use PBO; then we use Kevlar rollers as the profile cools down.
The profile goes to a cooling table where it moves back and forth to cool down. We normally use Kevlar for this table.
If there are 2 or 3 cooling tables, as the profile gets colder we can start using less costly materials like Nomex or polyester.
Normally at the end of the process there is a saw that cuts the profile. Here it is much cooler so we can use polyester.
An aluminum billet gets heated up and then pressed through a die to give it the desired shape.
InitialArea
First Cooling Table
Second Cooling Table
Sizing Table
Pickup Table
1050˚F
850˚F
580˚F
300˚F
750˚F
850˚F
Extruder
Extruder
PBOPBO stands for Polybenzobisoxazole, which is a synthetic polymer that was invented by
SRI International and is currently manufactured by Toyobo Corporation in Japan. The
trademark name for PBO is Zylon. Zylon is 1.6 times stronger than Kevlar and can also
withstand higher temperatures.
For aluminum extrusion, PBO normally can withstand temperatures up to 1200˚F / 600˚C.
KEVLARKevlar is the trademark name for an aramid fiber made by DuPont. An aramid fiber is a
synthetic (man-made) fiber that is very strong and heat resistant. Aramids are generally
prepared by the reaction between an amine group and a carboxylic acid halide group.
The most popular aramid fibers are: Kevlar, Twaron, Technora and Heracron. The one that
we and most of the market use is Kevlar. Kevlar is made by a solution of monomers 1,4
phenylene-diamine and terepththaloyl chloride in a condensation reaction.
For aluminum extrusion, Kevlar normally can withstand temperatures up to 950˚F / 500˚C.
NOMEXNomex is the trademark for a flame-resistant meta-aramid developed by DuPont. Nomex,
like Kevlar is an aramid but Nomex is a “meta” aramid, and Kevlar is a “para” aramid. The
variant “meta” just has a di�erent location for the di�erent compounds than the variant
“para”. This makes Nomex have an good thermal, chemical and radiation resistance for a
polymer material. For example the firefighters suits are made of Nomex because of its
resistance to fire and chemicals… But this also makes Nomex to have a poorer strength and
a lower resistance to heat than Kevlar. Nomex is made in USA and also Spain by Dupont.
For the aluminum extrusion process it can withstand 450˚F / 230˚C.
POLYESTERPolyester is a synthetic polymer made of purified terephthalic acid (PTA) or its dimethyl
esterdimethyl terephthalate (DMT) and monoethylene glycol. It doesn’t have high resistant to
heat, that is why is normally used at the very end of the process where the profile is cooler.
For the aluminum extrusion process it can withstand 300˚F / 150˚C.
Belting Materials UsedDi�erent synthetic fibers used for aluminum extrusion.
Material PBO + Kevlar Kevlar Polyester
Inner Diameter 40mm to 140mm 40mm to 140mm 40mm to 140mm
Length <1200mm <1200mm <1200mm
Thickness 5mm to 14mm 5mm to 14mm 5mm to 14mm
Working 1200˚F | 600˚C 950˚F | 500˚C 300˚F | 150˚C
Temperature
Additional Hard Type Available Hard Type Available Hard Type Available
PBO KEVLAR POLYESTER
Needled Rollers
Needled Pads
Material PBO + Kevlar Kevlar Nomex Polyester
Width 50mm to 3,000mm 50mm to 3,000mm 50mm to 3,000mm 50mm to 3,000mm
Length Per Customer Request Per Customer Request Per Customer Request Per Customer Request
Thickness 5mm to 14mm 5mm to 14mm 5mm to 14mm 5mm to 14mm
Working 1200˚F | 600˚C 950˚F | 500˚C 450˚F | 230˚C 300˚F | 150˚C
Temperature
Additional Adhesive Backing & Adhesive Backing & Adhesive Backing & Adhesive Backing & Hard Type Available Hard Type Available Hard Type Available Hard Type Available
PBO KEVLAR NOMEX POLYESTER
Material NOVA NOVA NOVA
Thickness 2mm 4mm 5.5mm
Max. Width 2,000mm 2,000mm 2,000mm
Working 248˚F | 120˚C 248˚F | 120˚C 248˚F | 120˚C
Temperature
Color Green, Black, White Green, Black, White Green, Black, White
NOVA 25 NOVA 40 NOVA 60
NOVA - Needled Polyester + Rubber Impregnated
Material PBO + Kevlar Kevlar Nomex Polyester
Width <3,000mm <3,000mm <3,000mm <3,000mm
Length <30,000mm <30,000mm <30,000mm <30,000mm
Thickness 5mm to 14mm 5mm to 14mm 5mm to 14mm 5mm to 14mm
Working 1200˚F | 600˚C 950˚F | 500˚C 450˚F | 230˚C 300˚F | 150˚C
Temperature
Additional Truly Endless & Laced. Truly Endless & Laced. Truly Endless & Laced. Truly Endless & Laced. Hard Type Available Hard Type Available Hard Type Available Hard Type Available
PBO KEVLAR NOMEX POLYESTER
Needled Belts
Woven Products
Material Nomex Nomex Nomex
Size Per Customer Request Per Customer Request Per Customer Request
Thickness 2mm 2mm to 10mm
Density 450 g/m2 N/A
Working 450˚F | 230˚C 450˚F | 230˚C 450˚F | 230˚C
Temperature
SPACER BARS & AGING FURNACE CRATES
NOMEX CRADLE LINER STRIPS
PROTECTIVE COVERING
Spacer Bars and Aging Furnace Crates
K-7 K-24K-7 K-24 K-26K-26
MATERIAL DESCRIPTION THICKNESS TEMPERATURE
K-7 4-Ply woven Kevlar w/wire construction to 5mm 950˚F | 500˚C help dissipate heat & lower the elongation.
K-24 4-Ply woven Kevlar. 5mm 950˚F | 500˚C
K-26 4-Ply woven Kevlar with pan fibers 5mm 950˚F | 500˚C to help dissipate heat.
Special FabricationWe love challenges. Test us!
Truly Endless Kevlar Cover on a Timing Belt
Kevlar on a Reinforced Base
V-Guides: PVC and Kevlar Ropeand NOVA with PVC Guide
Sampla Belting NA LLC
61 North Gates Ave.
Lackawanna, NY 14218
Tel. +1 (888) 755-7450
Fax +1 (888) 324-7428
Sampla Belting NA LLC
221 Westgate Dr.
Carol Stream, Illinois 60188
Tel. +1 (630) 752-0600
Fax +1 (630) 752-0680
United StatesSampla Belting Canada
927 Matheson Blvd. East
Mississauga, ON L4W 2R7
Tel. +1 (800) 847-5204
Fax +1 (905) 878-0107
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Viale delle Industrie, 10-12 20041
Agrate Brianza (MB)
Tel. +39 039 689 601
Fax +39 039 650 846
Across the pond:
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Call our customer service now with your problem application.
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