YIYI Mesh Belt Raw Materials and Wire Drawing
Quality control on the official website →
Where the steel in a YIYI Mesh Belt conveyor belt comes from: two stocked raw materials, mill documents, spectral, hardness and tensile tests on incoming batches, in-house wire and rod drawing, and diameters measured again on the belt. Published by Ningjin Yiyi Mesh Belt Co., Ltd. (YIYI Mesh Belt), Ningjin, Shandong, China. 14 pages; read online or download the PDF.
- 5.0 mm wire rod and 12 mm bar
- Spectral and hardness tests
- In-house wire drawing
- In-house rod drawing
- Records to the finished belt














What this 14-page document covers
Each item links to the page in the flipbook above.
- Page 2 · From incoming steel to the wire in your belt
- Page 3 · Five questions buyers ask about material
- Page 4 · Two raw materials, stocked in the factory
- Page 5 · Every incoming batch is tested
- Page 6 · Tensile testing of wire and rod
- Page 7 · Stainless wire drawn in our own factory
- Page 8 · Cross rods drawn in our own factory
- Page 9 · Diameters measured again on the belt
- Page 10 · Materials by belt family
- Page 11 · Carbon steel belts: protected against rust
- Page 12 · Records from raw material to finished belt
- Page 13 · What our material testing does — and does not — mean
Text version of this document
Page 1. RAW MATERIALS FROM WIRE ROD TO YOUR BELT Where the steel comes from and how each batch is checked PROVEN · STABLE · VERIFIED YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 01 / 14
Page 2. MATERIAL IN 9 PHOTOS From incoming steel to the wire in your belt YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 02 / 14 1 Raw material 5.0 mm wire rod and 12 mm drawing stock, processed in-house. 2 Spectral test Every incoming batch. 3 Hardness test Every incoming batch. 4 Tensile test Strength of wire and rod. 5 Wire drawing In-house stainless wire drawing. 6 Rod drawing In-house round-bar drawing. 7 Wire diameter Measured against your drawing. 8 Rod diameter Measured against your drawing. 9 Traceability Batch code stamped on parts.
Page 3. WHAT BUYERS ASK Five questions buyers ask about material YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 03 / 14 Material is the hardest thing to check once the belt arrives — so we show how it is checked before. Your question What we show you Pages Where does the steel come from? Our two raw-material types, stocked in the factory. 4 Is every batch checked? Mill documents, spectral, hardness and tensile tests. 5–6 Who controls the wire and rod sizes? In-house wire and round-bar drawing, then measurement. 7–9 Which grades can you supply? Material options for each belt family. 10 Can I trace the material in my belt? Records from raw material to finished belt. 12 How you can check: ask for the mill documents of the material in your order.
Page 4. RAW MATERIAL Two raw materials, stocked in the factory YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 04 / 14 Your concern: a factory that buys whatever wire is available that week. What we stock 5.0 mm wire rod and 12 mm drawing stock, about 50 tons in regular inventory. These are inputs, not finished belt sizes: the final wire and rod sizes follow your drawing. Raw-material processing line How you can check: ask which raw material and route are used for your belt.
Page 5. INCOMING CHECKS Every incoming batch is tested YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 05 / 14 Your concern: a grade on paper that is not the grade in the belt. Each batch Steel mill documents, material confirmation, spectral analysis and hardness testing. Spectral analysis Hardness tester How you can check: ask for the mill documents of the batch used in your order.
Page 6. STRENGTH Tensile testing of wire and rod YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 06 / 14 Your concern: wire that looks right but is too weak or too hard. What we do Tensile tests on wire and round bar, alongside spectral and hardness tests. Which tests are reported for your order is agreed with you. Tensile tester How you can check: tell us at the enquiry if you need test records with the shipment.
Page 7. WIRE DRAWING Stainless wire drawn in our own factory YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 07 / 14 Your concern: wire sizes that drift from batch to batch. In-house One stainless steel wire drawing line supports all 12 belt families. Not every wire size for every order is drawn in-house; we tell you the route for your order. Wire drawing line Drawn wire How you can check: ask whether the wire in your belt is drawn in-house.
Page 8. ROUND-BAR DRAWING Cross rods drawn in our own factory YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 08 / 14 Your concern: cross rods that do not fit the links or sprockets. In-house One round-bar drawing line, mainly for spiral freezer, side driven, self-stacking, eye link, chain driven and plate link belts. Final route depends on your drawing. Round-bar drawing How you can check: ask for rod diameter photos of your order.
Page 9. DIMENSIONS Diameters measured again on the belt YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 09 / 14 Your concern: correct wire before forming, wrong size on the finished belt. Checked Wire and rod diameters are measured before forming and again on the first article of your belt. Wire before forming Rod before forming Rod on the first article How you can check: first-article photos are sent with the measured values.
Page 10. MATERIAL OPTIONS Materials by belt family YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 10 / 14 Your concern: being offered one grade for every application. Belt family Materials Spiral freezer, self-stacking, side driven SUS304 / SUS316 Eye link Mild steel / SUS304 / SUS316 Flat wire / honeycomb SUS304 / SUS316 / SUS316L / mild steel Chain driven SUS304 / SUS316 / carbon steel Plate link, balanced weave, compound weave SUS304 / SUS316 / mild steel Trapezoidal (flex) SUS304 / SUS316 Drive sprockets and components SUS304 / SUS316 / carbon steel / UHMW-PE / nylon / POM How you can check: the grade for your belt is confirmed on the drawing and PI for your operating conditions.
Page 11. CARBON STEEL Carbon steel belts: protected against rust YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 11 / 14 Your concern: a carbon steel belt that arrives rusty. How Carbon steel belts get a thin, even anti-rust oil film and are rolled on a tube core, wrapped in waterproof film and cased. Stainless belts are packed clean and dry. Carbon steel rolls, oiled and wrapped Rolled on a tube core How you can check: tell us how long the belt will be stored before installation.
Page 12. TRACEABILITY Records from raw material to finished belt YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 12 / 14 Your concern: a problem found later that no one can trace. Records Material records, processing and production records, inspection records and order identification. A batch code can be stamped on parts. Batch code on a tier plate The approved drawing kept for repeat orders How you can check: ask for a batch code on your belt when you order.
Page 13. HONEST LIMITS What our material testing does — and does not — mean YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 13 / 14 Your concern: a supplier who implies more testing than is done. It does not mean What it does mean Every order gets every test Incoming batches are tested; order records are agreed with you Every shipment includes all test documents You tell us which documents you need Every order is third-party tested Third-party inspection can be arranged when agreed Every wire size is drawn in-house We tell you the route for your order How you can check: agree the material documents for your order before production.
Page 14. PROVEN · STABLE · VERIFIED Metal Conveyor Belt Manufacturer Email: info@yiyimeshbelt.com Phone / WhatsApp: +86 134 5177 3742 Website: www.yiyimeshbelt.com www.yiyimeshbelts.com Company: Ningjin Yiyi Mesh Belt Co., Ltd. Tell us the grade and documents you need Belt type and application Required material grade Operating temperature and environment Material documents you need Drawing, old belt or photos Request a Drawing Review for OEMs & Professional Distributors YIYI MESH BELT www.yiyimeshbelt.com www.yiyimeshbelts.com 14 / 14 Document YIYI-PPT-N02 · Revision 2026-11-03 · Ask us for the latest revision