A copied belt can never be better than the data behind it. Here is what our factory works from, and what we need to see in the measurements and photos.
To replace a metal wire belt, send the belt type, material, total width, length, pitch measured over several pitches, wire and rod diameters, edge type, drive type with sprocket details, and photos of the surface, both edges and any damage. A drawing or a sample of the old belt lets the supplier confirm the design.
We are YIYI Mesh Belt (Ningjin Yiyi Mesh Belt Co., Ltd.), a manufacturer of engineered metal conveyor belts for equipment manufacturers, professional distributors and industrial end users, based in Ningjin, Shandong, China. Our manufacturing experience dates back to 1998; the current company was established in 2008. I am Sunny Ye. Replacement inquiries make up a large part of my work. This is the list I send to buyers who ask what we need.
At a Glance
| Topic | Data needed to replace a metal wire conveyor belt |
|---|---|
| Always send | Belt type, material, width, length, pitch, wire and rod sizes, edge, drive, photos |
| Strongest evidence | A drawing or a physical sample of the old belt |
| Belt types covered | Spiral Freezer, Self-Stacking, Flat Wire / Honeycomb, Balanced Weave, Compound Weave, Trapezoidal, Chain Driven, Eye Link |
| Key rule | Photos support a preliminary quote; a worn dimension is not the original design |
Which Basic Data Does Every Replacement Need?
Every replacement needs the belt type, material, total width, length, pitch, wire and rod diameters, edge type and drive type, plus the machine and application. With these, a supplier can identify the belt family and prepare a preliminary quote. Without them, any quote is a guess that may not fit your machine.
| Data | How to get it |
|---|---|
| Belt type | A clear photo of the surface; the supplier can identify the family |
| Material | From the old order or drawing; if unknown, say so |
| Total width | Edge to edge, at several points along the belt |
| Length | From the machine data or the old order; measured lengths include stretch |
| Pitch | Over ten pitches, divided by ten |
| Wire and rod diameters | Caliper, at an unworn place |
| Edge type | Close-up photos of both edges |
| Drive type | Sprockets, drum, friction rollers or chain; photos |
| Machine and application | Freezer, oven, cooler, washer; product and load |
The older version of this article listed "mesh size in wires per inch" and "surface coating". For most metal conveyor belts, pitch, wire and rod sizes describe the mesh more reliably, and coatings are rarely used on stainless food belts. Surface treatments such as pickling or electropolishing are a separate question.
Sunny's view: If you do not know a value, leave it blank and tell me. A blank is easier to fix than a guess.
Which Extra Data Does Each Belt Type Need?
Each belt family has its own critical data. Spiral belts need turn ratio and drum geometry. Self-stacking belts need guard height and the rod-end gap. Trapezoidal belts need the number of spaces. Chain driven belts need chain and sprocket data. Send the extra items for your belt type with the basic list.
| Belt type | Extra data to send |
|---|---|
| Spiral Freezer Belt | Drum diameter, inside radius, turn ratio, turning direction, edge type |
| Self-Stacking Belt | Guard height, stack plate shape, width over plates and carrying width, turning direction |
| Flat Wire / Honeycomb Belt | Pitch, flat strip size, rod diameter, edge and sprocket details |
| Balanced Weave / Compound Weave Belt | Spiral pitch, rod pitch, wire and rod diameters, edge, drive |
| Trapezoidal Mesh Belt | Pitch, wire diameter, number of spaces, edge (SLE or DLE) |
| Chain Driven Belt | Chain type and pitch, attachment, sprocket details, mesh type |
| Eye Link Belt | Link pitch, rod diameter, link size, drive |
If you do not know the belt type, send a clear photo of the surface and both edges. Belt families look different enough that a good photo is usually enough to identify the family, even when the name on the old order is unclear or uses a local trade name.
For spiral belts, read why replacement spiral belts fail to fit. For self-stacking belts, read how to select a self-stacking belt.
Sunny's view: For a spiral belt, the drum diameter matters as much as the belt width. Send both.
How Do You Measure an Old Belt Correctly?
Measure pitch over ten or more pitches and divide, because one pitch hides wear and error. Measure wire and rod diameters at an unworn place. Measure width at several points. Photograph every measurement with the tool in view. Remember that a worn belt has stretched, so its dimensions are not the original design.
Measuring tips
- Pitch: lay a steel rule along the belt, count ten pitches, measure and divide by ten.
- Wire and rod: use a caliper at a place without wear marks.
- Width: measure edge to edge in three places; note any difference.
- Edges: photograph both edges straight on, with a ruler for scale.
- Damage: photograph broken, bent or worn areas and note where they are on the belt.
Rods wear, links stretch and edges polish. A dimension measured on a worn belt is evidence, not the original design. That is why formal replacement uses the physical old belt, available drawings and equipment information, and why we prepare a drawing for your approval before production.
Note the length carefully too. Length measured on an old belt includes stretch, so the machine data or the original order is a better source. If neither exists, tell us how the length was measured and where the take-up sits, so we can review it against the machine.
For photo guidance, see how to photograph an old belt for a replacement quote (yiyimeshbelts.com).
Sunny's view: Put a coin or a ruler in every close-up photo. Without scale, a photo cannot be measured.
Why Does the Supplier Need Machine and Drive Data?
A belt is part of a machine. The drive, the shaft and sprockets, the rails, the take-up and the transfer points all decide whether a new belt fits and runs. Sprocket photos are especially important, because worn sprockets can damage a new belt and a pitch mismatch causes noise, wear and jumping.
- Machine type and builder, if known
- Drive type: sprockets, drum, friction rollers, chain
- Sprocket tooth count, bore and photos of the teeth
- Shaft centres and take-up type
- Transfer points at infeed and outfeed
- Operating conditions you can share: product, load, cleaning
If the sprockets are worn, we say so before you order. Replacing a belt on hooked or polished teeth often shortens the life of the new belt. We supply Drive Sprockets and Related Conveyor Components matched to the belt on a project basis.
Read when to replace the belt and sprockets together (yiyimeshbelts.com).
Sunny's view: A photo of the sprocket teeth side-on tells me more than the sprocket drawing. Send both if you can.
What Happens After You Send the Data?
We identify the belt family, review the data and photos, and ask for anything missing. Photos and basic dimensions support a preliminary quote. For a formal order we prepare a drawing for your approval, then run trial production and a complete first article before mass production, and inspect every belt before packing.
- Review: data, photos and the machine.
- Questions: we list what is missing.
- Preliminary quote: based on photos and basic dimensions.
- Sample or drawing: a physical sample or drawing confirms the structure.
- Approval: you approve and sign the drawing.
- Trial and first article: checked before mass production.
- Production, final inspection and packing.
Every belt receives a 100% final inspection before packing: pitch, drive matching where applicable, flatness, cleanliness, welding, width, length, structural dimensions and appearance. Lead time is confirmed for each order, according to the belt, quantity and schedule.
If anything changes during the review, such as a different edge or a corrected pitch, the change is written on the drawing before you approve it. That way the drawing always matches the belt that is actually produced and delivered.
Keep the approved drawing. It makes your next replacement much faster. See a specification record for reorders (yiyimeshbelts.com).
Sunny's view: Once your drawing is approved, file it with the machine manual. The next replacement starts from there, not from scratch.
When This Is Not the Right Approach
A replacement based on width and length alone is not a safe approach for any engineered belt. It is especially risky for spiral, self-stacking and chain driven belts, where geometry and drive matching decide fit.
Also, a like-for-like copy is not always right. If the old belt failed early, its wear pattern may point to alignment, load or drive problems that a copy would repeat. Review the cause before ordering.
From Our Engineering Experience
In our replacement reviews, the most common missing items are drum data for spiral belts, guard height for self-stacking belts, and sprocket photos for everything. The most useful single item is a short section of the old belt with both edges.
We work through the same route for every formal replacement: evidence, drawing, approval, trial, first article, production and final inspection. It takes a little longer at the start and saves time at installation.
FAQ
What is the minimum data for a replacement quote?
Belt type, material, width, length, pitch, wire and rod sizes, edge, drive and photos. This supports a preliminary quote.
Can you make a replacement from photos?
Photos and basic dimensions support a preliminary identification and quote. A sample or drawing is used to confirm the design.
How do I measure pitch correctly?
Measure over ten or more pitches and divide by the number of pitches. One pitch hides wear and error.
Why do you ask for sprocket photos?
Worn or mismatched sprockets can damage a new belt and cause noise, wear and jumping.
Is the old belt the original design?
No. A worn belt has stretched and worn, so its dimensions are evidence to be reviewed, not the original design.
Conclusion
Send belt type, material, width, length, pitch, wire, edge, drive and photos, plus the extras for your belt type. A sample or drawing confirms the design.
Replacing a metal belt?
Send photos of the surface, both edges and the sprockets, with width, length and pitch. We identify the belt and tell you what else we need.
Start a replacement review →WhatsApp Sunny📄 Spiral Freezer Belt RFQ Application Sheet (PDF) · Email: info@yiyimeshbelt.com
Related reading: Why replacement spiral belts fail to fit · How to select a self-stacking belt · How to measure a metal belt for an enquiry (yiyimeshbelts.com) · Replacement without the original drawing (yiyimeshbelts.com)
Product pages: Custom wire mesh conveyor belts · Wire mesh conveyor belt types (specifications, photos and quote request)
Sunny Ye
Global Sales Director, YIYI Mesh Belt · 15 years in metal conveyor belt projects
I work with spiral freezer builders, distributors and plant teams on belt selection and replacement. Questions about this article? Send them to me directly.
Follow Sunny on LinkedIn · Last updated: 2026-10-15
