Conveyor Belt Repair: How to Fix Rips, Tears, and Holes

Originally published: December 2018

Last updated: October 2026

Key takeaways

• Most lengthwise rips, edge tears, punctures, and holes in a rubber conveyor belt can be repaired in place by the site crew with mechanical fasteners or a screw-in rubber repair strip.
• A transverse tear that runs in from the belt edge 25% or more of the belt width should be cut out and respliced rather than repaired.
• The right repair method depends on the type and direction of the damage, the belt thickness, the smallest pulley on the conveyor, and whether the repair has to last until the next outage or stay in service.

A rip opening along the belt, a flap of cover hanging off the edge, a hole punched through by a lump that didn't clear the chute: the decision is the same every time. Run it, shut it down, or wait for a vulcanizing crew?

For most rips, edge tears, punctures, and holes, conveyor belt repair can be done in place by the site crew with mechanical fasteners or a screw-in rubber repair strip. The exception is a transverse tear reaching 25% or more of the belt width. That section gets cut out and respliced.

What happens to a belt after it rips?

A rip cuts through cover and carcass, so the belt carries its tension around the damaged area, and every pass over a pulley flexes the cut edges, causing further damage. Conveyor belt repair is the act of closing that damage so the belt can carry load and tension again without being replaced.

Rips usually start where something sharp meets a moving belt: a broken or seized idler roll, a worn roller with an exposed edge, or a jagged piece of stone, coal, or salt wedged against the structure. Once the carcass is open, fines and water work into the plies, and a loose flap can catch on structure and tear further. A weakened area that hasn't split yet, the soft spot a crew notices on a walkthrough, is the same problem one step earlier.

Direction matters. A lengthwise rip runs with the tension path, so fasteners installed across it can close it and hold it closed. A transverse tear runs across the tension path and removes belt strength directly. That is why the guidance for crosswise damage is conservative: once a tear runs in from the edge 25% or more of the belt width, the section needs to come out.

Which conveyor belt repair solutions work, and where do they fall short?

Five approaches cover most rips: mechanical plate fasteners, screw-in rubber repair strips, hot vulcanized repair, cold-bond repair, and cutting out the damage to resplice. Each one trades off downtime, the crew and equipment it needs, and how the finished repair runs.

How do rip repair methods compare on downtime, crew, and inspection?

For rubber conveyor belt repair, the first two rows are the ones a site crew can handle on its own. Mechanical repair puts the fix in the hands of the people already at the belt. A tech can inspect it by looking at it, and if it needs attention later, it can be pulled and redone without heat or cure time.

Vulcanized repair leaves a fastener-free surface, but it ties the repair to a press, a trained crew, and a cure, which usually means scheduling around someone else. A mechanical repair is done when the last fastener is seated, and a screw-in rubber repair strip is designed to stay in service as the finished repair.

How do you fix a ripped conveyor belt in place?

Lock out the conveyor, block the belt against motion, identify the type and direction of the damage, then close it with fasteners or a repair strip installed in order from one end of the damage to the other.

Lockout comes first. Mine operators work under MSHA's requirement for repairs and maintenance (30 CFR 56.14105), which calls for the power to be off and the equipment blocked against hazardous motion. Other operations follow OSHA's lockout/tagout standard (29 CFR 1910.147). A belt under tension can still move with the drive locked out, so blocking or clamping the belt belongs in the procedure.

Next, analyze the damage. Measure belt thickness, since repair fasteners are selected by it. Note whether the damage runs lengthwise, crosswise, or at the edge, whether it's clean or jagged, and how far it runs. If a crosswise tear has reached 25% of the belt width, stop and plan a resplice.

Fasteners go in from one end of the damage to the other, spaced closely enough that no material seeps through. On a jagged tear, two of the three bolts on each three-bolt fastener go on the weak, flap side of the tear for stability. Three-bolt fasteners always run crosswise on the belt so they travel smoothly over pulleys.

Which repair pattern fits each type of damage?

A screw-in rubber repair strip is an alternative for lengthwise, crosswise, and edge rips and for holes, where the operation prefers a rubber surface over metal plates.

What should you look for in a conveyor belt repair method?

Look for a method rated for your belt thickness and damage type that runs over your smallest pulley, works with your belt cleaners, and can be installed and inspected by your own crew with tools already on site.

• Belt thickness range: fasteners and repair strips are sized by belt thickness, so measure before ordering and check the published range.
• Damage coverage: a method that handles lengthwise, crosswise, and edge rips and holes covers more of what the belt will actually see.
• Minimum pulley diameter: the repair has to flex over the smallest pulley on the conveyor every revolution.
• Belt cleaner compatibility: any belt conveyor repair passes under the primary and secondary cleaners each trip, so check how the blades handle it.
• Cover compound and service conditions: hot material calls for a heat-resistant repair, and wet or corrosive service calls for stainless hardware.
• Tools and crew: a repair that needs a press, heat, or a cure needs an outside crew or a planned outage, while one that needs a hammer, impact tool, or drill can be done by the people on site.
• Inspection: a tech should be able to judge the condition of the repair on a walkthrough and know when it needs attention.

Flexco options for conveyor belt rip repair

Flexco^® Bolt Solid Plate Fasteners handle punctures, holes, clean lengthwise rips, and edge tears. For jagged lengthwise tears, they combine with three-bolt Flexco^® Rip Repair Fasteners. The fasteners use piloted bolts with tapered tips, install with a hammer or power tool, and are listed for belts 3/8 to 1-3/16 in (10 to 30 mm) thick in widths from 12 to 72 in (300 to 1800 mm), in steel or stainless. Each plate stays visible on the belt surface, so a tech can check for loose bolts or lifted plates on a walkthrough.

Where the repair needs a rubber surface, the Fix'N Go^® Belt Repair System is a flexible rubber repair strip fastened with self-drilling, self-tapping screws that pass between the carcass threads without cutting them. It covers longitudinal, crosswise, and edge rips, holes, and tears, runs over pulleys as small as 8 in (200 mm), is compatible with belt cleaners, and installs with a drill. It comes in abrasion-resistant and heat-resistant versions, with the heat-resistant version rated to 340°F (170°C), in 2 m and 20 m lengths.

When the damage calls for cutting out a section, the Super-Screw^® Flexible Rubber Fastening System makes the new splice with the same screw design and ships with assembly spacers in place so the top and bottom covers align. Belt clamps from Flexco's Belt Maintenance Tools line hold the belt in position while the crew works.

Please note: The Super-Screw^® Flexible Rubber Fastening System and Fix’N Go^® Belt Repair System are available from Flexco only in the U.S., Canada, and Mexico.

Conveyor belt repair FAQ

Can you repair a conveyor belt without removing it from the conveyor?

Yes. Most rips, edge tears, and holes are repaired with the belt in place. After lockout, the crew clamps the belt to hold it steady at the work area, then installs fasteners or a repair strip from the top or bottom of the belt, whichever side gives better access to the damage.

Can you repair a rip at the troughing junction?

Yes, with the right fastener. Three-bolt rip repair fasteners should not be used when the repair falls in the troughing junction. Standard two-bolt plate fasteners or a flexible rubber repair strip are the usual choices there. Size the fastener to the belt thickness and check that the repair flexes through the trough transition.

Can rip repair fasteners be used to splice belt ends together?

No. Three-bolt rip repair fasteners are built to close damage within a continuous belt, and they should never be used to join two belt ends. A belt-end joint needs a complete splice rated for the belt's tension and thickness, made with a mechanical splicing system or by vulcanizing.

How do you keep a soft spot from turning into a rip?

Bridge it before it splits. A soft spot is a weakened area of carcass that flexes more than the belt around it, which makes it a likely starting point for the next rip. Flexco^® Rip Repair Fasteners can be installed across a soft spot to reinforce it. Continually check the area on every walkthrough.

Talk to a Flexco representative

If conveyor repair needs keep landing on the same belt, or you're deciding which repair method to keep on the shelf, a Flexco representative can look at the damage history, the belt, and the tools your crew already has and recommend a repair approach. Contact a Flexco representative.