Heavy Duty Rubber

Heavy Duty Rubber Conveyor Belts

Abrasion-resistant, heavy-gauge rubber conveyor belts engineered for the toughest industrial applications. Texas Belting and Supply stocks 150 PIW through 600+ PIW belting for mining, aggregate, recycling, grain elevators, and high-temperature environments. Available in standard, oil resistant, high temp, and hot asphalt compounds — cut to length and ready to ship from Houston, TX.

Industrial Rubber Conveyor Belting for Demanding Applications

When your operation handles abrasive bulk materials like sand, gravel, rock, ore, or hot asphalt, standard belting won't last. Our heavy-duty rubber conveyor belts feature high-tensile synthetic carcasses rated from 150 to 600+ PIW (pounds per inch of width) with thick, abrasion-resistant covers that resist mildew, rot, and stretching under continuous heavy loads.

We also carry specialty compounds including moderately oil resistant (MOR), high temperature (up to 700°F), hot asphalt (HA), fire retardant/MSHA-approved, and cross-rigid (CR) belts for sidewall fabrication. Plus cleated incline belts and rubber skirtboard for complete conveyor system support.

150 PIW — Light to Medium Duty

2-ply, 150 lbs/inch width carcass. Ideal for agriculture, airline baggage, recycling, and general conveying.

150 PIW 1/32 x Bare rubber conveyor belt
STD

150 1/32" x Bare

Light duty with abrasion-resistant cover. Popular in agriculture, airline industry, packaged goods, and rubber fabrication.

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150 PIW 1/32 x 1/32 STD rubber conveyor belt
STD

150 1/32" x 1/32" STD

Popular for potatoes, live roller, and general conveying. Very popular in agriculture.

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150 PIW 1/8 x Bare MOR oil resistant conveyor belt
MOR

150 1/8" x Bare MOR

Medium duty slider bed belt. Excellent for recycling, glass industry, wood chips, paper, and scrap. Moderately oil resistant.

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150 PIW 1/8 x 1/32 STD abrasion resistant belt
STD

150 1/8" x 1/32" STD

Moderately abrasive applications in sand, gravel, and lumber. Long wearing, mildew/rot resistant, low stretch.

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150 PIW 1/8 x 1/16 STD heavy cover belt
STD

150 1/8" x 1/16" STD

Moderate abrasion. Sand, gravel, lumber industries. Heavy cover with synthetic carcass — mildew/rot resistant, low stretch.

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220 PIW — Medium to Heavy Duty

2-ply, 220 lbs/inch width carcass. Standard, oil resistant, high temp, hot asphalt, and cross-rigid compounds for demanding operations.

220 PIW M-MOR-SC MSHA elevator belt
MOR / MSHA

220 1/16" x 1/16" M-MOR-SC

Bucket elevator belt. Static conductive, moderately oil resistant, fire retardant, MSHA approved for grain elevators. Custom bucket punching available.

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220 PIW CR-MOR cross rigid sidewall belt
CR-MOR

220 1/8" x 1/16" CR-MOR

Cross-rigid with monofilament plies — designed for sidewall fabrication. Oil resistant. Not for troughing applications.

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220 PIW 1/8 x 1/16 STD heavy industrial belt
STD

220 1/8" x 1/16" STD

High abrasion. Sand, gravel, rock, and heavy industrial. Long wearing, mildew/rot resistant, low stretch.

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220 PIW 3/16 x Bare MOR slider bed belt
MOR

220 3/16" x Bare MOR

Heavy-duty slider bed belt for recycling and glass industry. Abrasion-resistant top cover, bare bottom. Moderately oil resistant.

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220 PIW 3/16 x 1/16 STD abrasion resistant belt
STD

220 3/16" x 1/16" STD

High abrasion. Sand, gravel, rock industries. Heavy cover, synthetic fabric — long wearing, low stretch.

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220 PIW 1/8 x 1/16 MOR oil resistant belt
MOR

220 1/8" x 1/16" MOR

For oily grain, wood chips, and sewage treatment. Moderately oil resistant compound.

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220 PIW 3/16 x 1/16 high temp 350F belt
High Temp

220 3/16" x 1/16" HT

High heat + abrasion — foundry applications. Up to 350°F (fines) / 400°F (lumps). Resists hardening, cracking. Ozone resistant.

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220 PIW Maximum high temp 700F conveyor belt
Max HT / 700°F

220 3/16" x 1/16" Maximum HT

Extreme high temperature — up to 400°F (fines) / 700°F (lumps). Also known as the "700 Degree belt." Foundry grade.

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220 PIW 3/16 x 1/16 hot asphalt belt
Hot Asphalt

220 3/16" x 1/16" HA

Hot asphalt, oily grain, oil-treated coal, sewage treatment. Combined high temp + oil resistance. Flexible up to 350°F.

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330 PIW — Heavy Duty

3-ply, 330 lbs/inch width carcass. Standard, oil resistant, high temp, maximum high temp, and hot asphalt compounds for the most demanding bulk handling.

330 PIW M-MOR-SC MSHA grain elevator belt
MOR / MSHA

330 1/16" x 1/16" M-MOR-SC

Bucket elevator belt. Static conductive, MOR, fire retardant, MSHA approved. Custom bucket punching available.

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330 PIW 3/16 x 1/16 MOR oil resistant belt
MOR

330 3/16" x 1/16" MOR

Oily grain, wood chips, sewage treatment. Same as 330 STD but moderately oil resistant.

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330 PIW 3/16 x Bare MOR slider bed belt
MOR

330 3/16" x Bare MOR

Heavy-duty slider bed. Recycling, glass industry. Abrasion-resistant top, bare bottom. Moderately oil resistant.

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330 PIW 3/16 x 1/16 STD heavy duty belt
STD

330 3/16" x 1/16" STD

High abrasion. Sand, gravel, rock, heavy industrial. Long wearing, mildew/rot resistant, low stretch.

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330 PIW 3/16 x 1/16 high temp 350F belt
High Temp

330 3/16" x 1/16" HT

Foundry grade. Up to 350°F (fines) / 400°F (lumps). Resists hardening and cracking. Ozone resistant.

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330 PIW Maximum high temp 700F belt
Max HT / 700°F

330 3/16" x 1/16" Maximum HT

Extreme temps — up to 400°F (fines) / 700°F (lumps). "700 Degree belt." Resists hardening and cracking.

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330 PIW hot asphalt HA belt
Hot Asphalt

330 3/16" x 1/16" HA

Hot asphalt, oily grain, oil-treated coal. High temp + oil resistance combined. Flexible up to 350°F.

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330 PIW 1/4 x 1/16 STD extra heavy cover belt
STD

330 1/4" x 1/16" STD

Heavy-duty abrasive applications — gravel, rock, ore, limestone. Also used as elevator belt. Extra thick cover.

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440–600+ PIW & Specialty Belts

High-tensile 3-ply carcasses for the heaviest loads. Includes straight warp impact/rip resistant and open chevron belts.

3-ply 600 PIW 3/8 x Bare MOR heavy duty belt
600 PIW / MOR

3 Ply 600 3/8" x Bare MOR

Heavy-duty slider bed — especially suited for wood industry. Abrasion resistant top, bare bottom. Oil resistant.

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3-ply 600 PIW 3/8 x 1/8 STD belt for rock ore
600 PIW / STD

3 Ply 600 3/8" x 1/8" STD

Heavy duty, high weight. Gravel, rock, ore, limestone, elevator. Beefy 3/8" top cover. Low stretch.

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440 PIW 1/4 x 1/16 STD heavy duty belt
440 PIW / STD

440 1/4" x 1/16" STD

Heavy-duty abrasive — gravel, rock, ore, limestone. Also used as elevator belt. Long wearing, low stretch.

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M-Flex straight warp impact rip resistant belt
Straight Warp

1/440 1/4" x 1/8" M-Flex Straight Warp

Primary crusher, ore, large stone, log handling, recycling, scrap metal, quarries. Impact and rip resistant. Excellent lace retention and troughing.

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Open chevron 220 PIW screening belt
Chevron

Open Chevron 2 Ply 220 3/16" x 1/16"

Screening applications. Tough, durable chevron pattern. Available 26", 28", 31.5", 36", 42", and 48" wide.

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Cleated Incline Belts

Pre-molded chevron profile belts for bulk conveying on incline systems. Available in SBR and MOR compounds across 150, 220, and 330 PIW carcasses.

220 PIW cleated incline MOR chevron belt
220 / MOR

220 1/8" x Bare Cleated Incline MOR

Bulk conveying where oil is a concern. Popular on Diamond Z grinders and recycling. ¼" high, 6" wide staggered chevron profile.

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220 PIW cleated incline SBR chevron belt
220 / SBR

220 1/8" x 3/32" Cleated Incline SBR

Popular bulk conveying belt. ¼" high, 6" wide staggered chevron profile. Standard SBR compound.

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220 PIW cleated incline MOR grain gravel belt
220 / MOR

220 1/8" x 3/32" Cleated Incline MOR

Bulk grain, gravel, crushed stone, road planers. ¼" high, 6" wide staggered chevron. MOR compound.

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3-ply cleated incline MOR Diamond Z grinder belt
3-Ply / MOR

3 Ply 1/8" x Bare Cleated Incline MOR

Bulk conveying where oil is present. Popular on Diamond Z grinders. ¼" high, 6" wide staggered chevron.

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330 PIW cleated incline SBR bulk conveying belt
330 / SBR

330 1/8" x 1/16" Cleated Incline SBR

Popular heavy-duty bulk conveying belt. ¼" high, 6" wide staggered chevron profile. SBR compound.

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150 PIW mini-bite bucket profile cleated belt
150 / Mini-Bite

2 Ply 150 Mini-Bite 1/32" x Bare

Gravel, dirt, sand, recycling. 3/16" high × 1¾" wide bucket profile, staggered pattern. 2" centers across, 1" centers lengthwise.

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Rubber Skirtboard

Abrasion-resistant rubber skirting for conveyor containment and chute lining. 65 ±5 durometer. Available in 5 thicknesses.

1/4 inch rubber skirtboard conveyor skirting
1/4"

1/4" Skirtboard

Conveyor skirting and chute lining for sand and aggregate. Abrasion-resistant, 65 ±5 durometer.

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3/8 inch rubber skirtboard
3/8"

3/8" Skirtboard

Medium thickness skirting for conveyors, bins, and hoppers. Abrasion-resistant compound.

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1/2 inch rubber skirtboard
1/2"

1/2" Skirtboard

Heavy-duty skirting and chute lining. Sand, aggregate, and bulk terminal applications.

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3/4 inch rubber skirtboard
3/4"

3/4" Skirtboard

Extra thick skirting for high-abrasion conveyor containment and hopper lining.

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1 inch rubber skirtboard heavy duty
1"

1" Skirtboard

Maximum thickness for the most demanding conveyor skirting and bin/hopper lining applications.

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Heavy Duty Belt Compound Guide

Each belt compound is engineered for specific operating conditions. Use this guide to match the right compound to your environment.

STD

STD — Standard

General abrasion resistance for dry bulk materials: sand, gravel, rock, limestone, lumber. Best all-around compound for non-oily, ambient-temperature applications.

MOR

MOR — Moderately Oil Resistant

For oily grain, wood chips, sewage treatment, and any application where petroleum-based oils may contact the belt. Also available in static conductive (M-MOR-SC) for grain elevators.

HT

HT / Max HT — High Temperature

HT handles up to 350°F (fines) / 400°F (lumps). Maximum HT handles up to 400°F (fines) / 700°F (lumps) — also called the "700 Degree belt." Foundry and high-heat processing.

HA

HA — Hot Asphalt

Designed for the combination of high temperature AND oil exposure — hot asphalt, oily grain, oil-treated coal. Retains flexibility up to 350°F.

Frequently Asked Questions

What does PIW mean on a conveyor belt?▼

PIW stands for Pounds per Inch of Width — it measures the tensile strength of a conveyor belt's carcass. A 150 PIW belt can support 150 pounds of tension per inch of belt width. Higher PIW ratings (220, 330, 440, 600+) handle heavier loads and longer conveyor spans.

What's the difference between STD, MOR, and HT compounds?▼

STD (Standard) is best for dry, abrasive materials at ambient temperatures. MOR (Moderately Oil Resistant) handles environments with petroleum oil contact. HT (High Temperature) withstands up to 350–400°F, while Maximum HT handles up to 700°F. HA (Hot Asphalt) combines oil and heat resistance.

What cover thickness should I choose?▼

Cover thickness is listed as top × bottom (e.g., 3/16" × 1/16"). Thicker top covers (1/4", 3/8") provide longer wear life in highly abrasive applications. "Bare" bottom covers are for slider bed conveyors. Covered bottoms (1/32", 1/16", 1/8") are for troughing idler systems.

Do you offer MSHA-approved grain elevator belts?▼

Yes. Our M-MOR-SC belts (available in 220 and 330 PIW) are static conductive, moderately oil resistant, and fire retardant — MSHA approved for grain elevator applications. We can also punch custom bucket hole patterns for any configuration.

What is skirtboard rubber used for?▼

Skirtboard rubber is installed along conveyor loading zones and transfer points to contain material on the belt and prevent spillage. It's also used as chute lining in bins and hoppers. Available in 1/4", 3/8", 1/2", 3/4", and 1" thicknesses.

Need Help Specifying a Heavy Duty Belt?

Tell us your material, load, temperature, and system specs — we'll recommend the right PIW and compound.

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