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HEAVY DUTY CONVEYOR BELT

Heavy Duty Conveyor Belt Heavy Duty Conveyor Belt

At Tampa Rubber & Gasket we stock Boston conveyor belt. Boston Industrial Products has been manufacturing high quality, high performance industrial rubber products since 1880. Long noted for innovations in the industry, Boston pioneered and developed the minimum ply concept in conveyor belting which is still the standard for the industry today. Other Boston innovations, such as the "Rotocure" continuous vulcanization process and "Balanced Belt Construction," have made Boston's name synonymous with reliability and quality. Boston manufacturers a wide range of both rubber cover compounds and reinforcing fabrics to solve the most demanding conveyor applications.

Belt Reinforcing Fabrics

Boston utilizes polyester and nylon textiles in the construction of their belt fabrics. Tough polyester filament yarns give BostRon belt high tensile strength. The longitudinal warp yarns carry the tension, and the traverse fill yarns hold the warp in place and retain the bolts or rivets of mechanical fasteners. The crimp in the fabric acts as a shock absorber. It permits the fabric to deflect and adjust itself during impact shock.
  • Low stretch and shrink characteristics reduce the take up and the time needed for drive adjustments.
  • Resistance to mildew and rot means that wet applications will not affect the belt.
  • Low moisture absorption means greater dimensional stability in wet or dry applications.
  • Excellent resistance to chemicals and acids allows a wide range of uses in a variety of environments.
  • High adhesion between plies and outstanding flexibility allow the use of smaller pulleys and give greater service life.
  • Excellent resistance to stretch and breakdown due to heat means consistent service in high temperature applications.

Belt Cover Compounds

General Purpose: Dulon

A durable and long lasting cover, Dulon is specially compounded to deliver long service life in abrasive applications. It is resistant to cut and gouges and generally recommended in rugged applications. A high quality RMA Grade II compound, it is flexible at low temperatures. Dulon covers are generally recommended for conveying sand and gravel, limestone, crushed rock, slag, coke, coal, cement rock, phosphate rock and the majority of material weighing between 50 and 120 lbs. per cubic foot.
Also available: Dulon 600 RMA Grade 1

Oil Resistant: VOR

An economical, static conductive, and moderately oil resistant compound, VOR has good abrasion resistance for handling grain, wood chips or other lightweight materials.
Also available: ROR for resistance to wood pitch and oily grains, and Nitrile for resistance to oils and sludge.

Heat Resistant: Heat King RA

This compound has proven economical and long lasting in service handling rough, abrasive materials up to 300ºF. Used in fertilizer, salt, cement, coke, slag and steel processing. Heat King RA can be used whenever high abrasion and heat resistant qualities are required.
Also available: Super Heat King BT for temperatures up to 400ºF.

Heat Resistant: EPDM Hot Service

Designed for high temperature service conditions with maximum resistance to the effects of hot abrasive loads. Recommended for hot fines to 400ºF or loads of coarse material to 450ºF, conveying materials such as clinker, calcined lime, carbon black and foundry sand.
Also available: Heat King OR for heat and oil resistance such as hot asphalt.
Other compounds available include Fire Resistant (Flameout-SBR) and Fire and Oil Resistant (Favor, Favor O.R. 2, Flameout O.R. 1, Flameout O.R. 2 and Flameout - Neoprene). Please call the Tampa Rubber Customer Service Department for full specifications.

Belt Selection Tables

The following tables have been simplified for ease of use in belt selection. In the interest of safe conveyor practice, conservative values for pulley diameters, load support and troughing minimums have been used. Adherence to these tables is suggested and the Tampa Rubber & Gasket Customer Service Department should be contacted if substantial deviation is required.


Belt Carcass Ratings
FabricCarcassPlyTension RatingCarcass ThicknessBelt ModulusWeight 1**Weight 2**
80 PIW/PlyCE160221603/32"10000.0475.0528
CE225332409/64"15000.0632.0699
110 PIW/PlyCE225222201/8"18000.0550.0603
CE325333303/16"27000.0845.0928
CE4204444017/64"36000.1216.1340
CE5255555011/32"45000.1587.1752
CE6306666027/64"54000.1957.2164
150 PIW/PlyCE3002230011/64"30000.0681.0748
CE4503345015/64"45000.0936.1197
CE6004460021/64"60000.1342.1473
CE7505575013/32"70000.1748.1748
200 PIW/PlyCE400224007/32"28000.0897.0980
CE6003360017/64"42000.1060.1139
CE800448003/8"56000.1498.1618
CE1000551000*15/32"70000.1937.2096
CE1200661200*17/32"84000.2376.2575
*Note: Carcasses CE10005 and CE12006 have a tension rating of 800 PIW with mechanical fasteners. Values shown above are for a vulcanized splice.
**Note: These weight values are carcass weight per lineal foot in pounds per inch of width.
"Weight 1" is for Dulon, Dulon 600, Heat Ding RA, OR and BT, EPDM, Nitrile, ROR and VOR.
"Weight 2" is for Favor, Favor OR 2 and Flameout OR 1, OR 2, SBR and Neoprene.

Cover Weights

Approximate weight in pounds per 1/32" cover gauge (per lineal foot per inch of width.)

Cover compoundWeight
Dulon, Dulon 600, VOR, HKRA, HKBT and EPDM Hot Service.0167
Favor, Favor OR 2, Flameout OR 1, OR 2, SBR and Neoprene.0197
HKOR, ROR and Nitrile.0180

Examples of Weight Calculations

Example #1: 24" wide CE3253 with 3/16" x 1/16" Dulon covers.

Example #2: 54" wide CE8004 with 3/8" x 1/4" Heat King OR covers.


Troughability and Load Support

Operating ConditionsMaterial Weighs Less than 50 PCFMaterial Weighs 51-75 PCFMaterial Weighs 76-115 PCFMaterial Weighs Over 115 PCFAny Condition; Loaded or Empty
CarcassMaximum Width Load SupportMaximum Width Load SupportMaximum Width Load SupportMaximum Width Load SupportMinimum Width Troughability
Idlers20º35º45º20º35º45º20º35º45º20º35º45º20-35º45º
16024242363636303630243024181418
22536054486048424242364236302030
22525448424242364236303630241824
32537260546054485448424842362430
42047272667266607260546054483036
52557272667266607260546054483036
63067272667266607260546654483642
30027272606054485448424842361824
45037272606660546054485448422430
60047272667266607260546054483036
75057272727272667272667260483642
40026666606060545454484848422430
60037272667266607260546054483036
80047272727272667272667266603642
100057272727272727272727272664248
120067272727272727272727272724854

Minimum Recommended Pulley Diameters

Carcass (PIW)Tandem or Dual DriveHead or Single DriveTail and Snubs
Over 80% of Rating60-80% of Rating40-60% of RatingUnder 40% of Rating
1602 (160)18"16"14"12"10"10"
2253 (240)20"18"16"14"12"12"
2252 (220)18"16"14"12"10"10"
3253 (330)20"18"16"14"12"12"
4204 (440)30"24"20"18"16"16"
5255 (550)36"30"24"20"18"18"
6306 (660)42"36"30"24"20"20"
3002 (300)24"18"16"14"12"12"
4503 (450)30"24"20"18"16"16"
6004 (600)36"30"24"20"18"18"
7505 (750)42"36"30"24"20"20"
4002 (400)24"20"18"16"14"14"
6003 (600)30"24"20"18"16"16"
8004 (800)36"30"24"20"18"18"
10005 (1000)42"36"30"24"20"20"
12006 (1200)48"42"36"30"24"24"

Additional tables on Impact Resistance and Cover Thickness Selection can be seen by clicking here.


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Tampa Rubber & Gasket Co., Inc.

215 North 20th Street
Tampa, FL, USA 33605
Ph-813-247-3647 Fax-813-247-3180
Toll Free-800-940-4673 E-Mail - The Post Office
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