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◆ TRAPEZOIDAL MESH BELT  ·  FLAT FLEX  ·  CURVED CONVEYING

Trapezoidal Mesh Belt
Lateral Flexibility.
Tight Turns. Flat Surface.

Trapezoidal spiral wire design with alternating wide-narrow pitch. Designed specifically for curved, turning, and spiral conveying systems where standard rectangular mesh cannot navigate bends. Smooth flat surface, small minimum turning radius, excellent hygiene.

Trapezoidal Spiral Curved & Spiral Conveyors SUS304 / 316 / 316L Food Processing ISO 9001
Request a Quote → View Specifications
Curved
Conveying
Flat
Product Surface
SUS304
Standard Grade
ISO 9001
Certified
Trapezoidal mesh belt close-up with flat wire surface
Trapezoidal mesh belt structure for curved conveying
Product & Drive Matching Proof

Clear Structure, Matched Drive, and Process Visibility

For curved conveying and replacement projects, buyers need to confirm belt geometry, edge treatment, and drive compatibility before order release. These reference views help engineering teams review the structure faster.

Product video for curve radius and lateral flexibility review
Trapezoidal mesh belt edge and wire connection detail
Edge and wire connection detail
Trapezoidal mesh belt matched with drive sprocket
Belt and sprocket matching proof
Trapezoidal mesh belt production equipment for forming process review
Automated forming equipment for trapezoidal mesh belt production
Trapezoidal mesh belt wide surface and lateral flexibility detail
Wide surface and lateral flexibility detail
Structure & Engineering Logic

Trapezoidal Spiral — Built for Turning

A standard balanced weave or compound weave belt has equal pitch across its full width. This prevents it from navigating curves without bunching or stretching. Trapezoidal mesh belt uses wider pitch on the outer edge and narrower pitch toward the centre — creating natural lateral flexibility that allows tight radius turns without distortion.

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Tight Turning Radius
Trapezoidal spiral geometry allows the belt to navigate curves with small turning radii that standard rectangular mesh cannot handle.
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Flat Product Surface
Despite lateral flexibility, the belt surface remains flat. Products do not tip, slide, or displace during curved conveying at normal speeds.
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Spiral System Compatible
Designed for spiral freezer and proofing tower systems where the belt must travel a helical path. Standard spiral freezer belt alternative.
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Hygienic Design
Open mesh allows full drainage and air circulation. SUS304/316 stainless throughout. CIP washdown compatible. Hygiene-sensitive approved grades available.
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Low Maintenance
No fabric, no plastic components. All-metal stainless construction. Long service life in cold, wet, and high-wash environments.
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In-House Production
Trapezoidal spiral wound in-house on dedicated equipment. Wire drawn at YIYI Mesh Belt. Full belt produced and tested under ISO 9001.
OEM Engineering Confirmation

Before Production, the Turning Geometry Must Be Confirmed

For a trapezoidal mesh belt, the key risk is not only wire diameter or belt width. The belt must match the conveyor curve radius, sprocket or drum contact, edge format, and product support requirement. YIYI reviews these points before production so the belt can turn smoothly without binding, bunching, or edge overload.

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Curve Radius Review
Inner radius, outer radius, belt width, and conveyor path are checked together. If the radius is too tight for the requested width, we adjust pitch logic before release.
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Drive Contact Matching
Sprocket, drum, or guide rail contact must match the belt pitch and edge format. This helps prevent jumping, edge rubbing, and uneven pull during curved conveying.
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Width and Pitch Control
Overall width, inner pitch, outer pitch, wire diameter, and edge straightness are checked against the drawing or sample before the belt moves to final inspection.
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Food-Line Surface Check
Weld points, burr condition, open area, and cleanability are reviewed for freezing, cooling, proofing, washing, and curved food conveyor applications.
Information Needed for Engineering Review Drawing or sample preferred
Belt geometryBelt width, belt length, inner pitch, outer pitch, wire diameter, and edge format.
Conveyor pathTurning radius, straight section length, guide rail position, spiral or curve direction.
Drive systemSprocket, drum, friction drive, or guide drive details with photos when available.
Application conditionProduct weight, line speed, temperature, cleaning method, and hygiene-sensitive requirement.
For replacement projects without drawings, send clear photos with a ruler, a short video of the belt path, and the worn belt sample dimensions. YIYI can identify which parameters still need confirmation before quoting.
Technical Specifications

Trapezoidal Mesh Belt — Parameter Table

Trapezoidal Mesh Belt — Standard Specification Flat Flex / Trapezoidal Spiral
Wire & Structure
StructureTrapezoidal spiral wire
Wide outer / narrow inner pitch for lateral flex
Wire Diameter1.0mm – 3.0mm
Wire GradeSUS304 standard
SUS316 / SUS316L available
Tensile Strength1,200 MPa — in-house drawn
Surface ProfileFlat — suitable for product contact
Lateral FlexDesigned for curved conveying systems
Dimensions & Delivery
Belt WidthCustom — to conveyor drawing
Belt LengthCustom per system circumference
Turning RadiusSpecified per system requirement
Edge TreatmentWelded rod / reinforced edge
QAWire IQC → in-process → final inspection
ISO 9001
Sample Lead Time10–20 working days
Production Lead Time20–35 working days
Note: Turning radius is critical for trapezoidal belt design. Send your conveyor curve radius, belt width, and system drawing. YIYI Mesh Belt designs the spiral geometry to match your specific turning requirement.
Applications

Where Trapezoidal Mesh Belt Runs

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Spiral Freezers
Helical path in spiral freezing systems — lateral flex essential
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Proofing Towers
Spiral proofing for bread — gentle product handling on curved path
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Curved Conveyors
90° and 180° turns — continuous product flow without transfer
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Chilling Tunnels
Cold and wet conditions — all-stainless, CIP compatible
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Baking & Cooling
Spiral oven or cooling drum systems requiring lateral flex belt
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Meat & Poultry
SUS316L grade — spiral conveyors in meat processing plants
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Seafood Processing
Curved transfer lines — salt water resistant SUS316 grade
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Food & Snack Lines
Any curved section where standard rectangular belt cannot turn
FAQ

Frequently Asked Questions

Standard balanced weave has equal pitch across the full width — it cannot navigate curves without distortion. Trapezoidal mesh belt uses alternating wide-narrow pitch that creates natural lateral flexibility. It is specifically designed for curved conveying, spiral systems, and any application requiring the belt to turn in the horizontal plane.
Minimum turning radius depends on belt width, wire diameter, and pitch configuration. Send your conveyor drawing with the required curve radius and belt width. YIYI Mesh Belt engineers the spiral geometry to match. For very tight radii, we may recommend a specific wire diameter and pitch combination to ensure the belt tracks without binding.
Yes. Send us belt width, wire diameter, spiral pitch (inner and outer), belt length, and turning radius. Alternatively send photos of the existing belt with a ruler. We produce a sample section for approval before bulk order. If you have the conveyor make and model, we may already have the specification on file.
GET STARTED

Tell Us Your Curve Radius & Belt Width.
We Design the Belt.

Send conveyor drawing, turning radius, belt width, and product type. Sample review available before bulk order when required. Engineering review supports each custom specification.

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SUS304 / 316 / 316L In-House Wire Drawing ISO 9001 Certified Sample Review Available Engineering Response
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