Self-Stacking Belt by YIYI Mesh Belt
Self-Stacking Belt top viewSelf-Stacking Belt angle viewSelf-Stacking Belt mesh surfaceSelf-Stacking Belt stack guard rowSelf-Stacking Belt edge link detailSelf-Stacking Belt stack plate, frontSelf-Stacking Belt side guard and rod endSelf-Stacking Belt stack plate close-upSelf-Stacking Belt full module
02 · SPIRAL & STACKING

Self-Stacking Belt

An engineered belt for self-supporting, self-stacking conveyor systems. Because each tier rests on the one below, stack geometry, guard height and the rod-to-stack-plate gap decide whether the stack runs true — so we confirm all three on your drawing.

Since 1998ISO 9001:2015In-house wire drawingRobotic welding100% final inspection
Quote This Belt Download Spec (PDF)

QUICK FACTS

  • Manufacturer: YIYI Mesh Belt (Ningjin Yiyi Mesh Belt Co., Ltd.), Shandong, China — manufacturing experience since 1998
  • Material: SUS304 / SUS316
  • Width: 420 / 580 / 640 / 660 / 760 mm (16.54 / 22.83 / 25.20 / 25.98 / 29.92 in)
  • Built to: your approved drawing, first article confirmed before production
Guard height
60–120mm
Turn ratio
1.6 / 1.7
Rod–plate gap
1–2mm
Final inspection
100%
every belt, before packing
02
SPECIFICATIONS

Let’s get into the numbers

Reference ranges in mm and inch, not free combinations. The approved drawing sets the final values.

Standard configuration

ParameterMetric (mm)Inch (in)
MaterialSUS304 / SUS316—
Spiral pitch6 / 9 / 13 mm0.236 / 0.354 / 0.512 in
Rod pitch30 mm1.181 in
Rod diameter5 mm0.197 in
Side-guard thickness1.5 mm0.059 in
Guard height60 / 80 / 90 / 100 / 120 mm2.362 / 3.150 / 3.543 / 3.937 / 4.724 in
Belt width420 / 580 / 640 / 660 / 760 mm16.54 / 22.83 / 25.20 / 25.98 / 29.92 in
Turn ratio1.6 / 1.7—
Rod-to-stack-plate gap1–2 mm0.039–0.079 in
SurfacePickling / Electropolishing—

Heavy-duty configuration

For heavier loads and wider belts: larger rods, taller guards up to 150 mm, widths up to 1069 mm, and a reinforced version with 4 × 15 mm reinforcement pieces.

ParameterMetric (mm)Inch (in)
MaterialSUS304 / SUS316—
Spiral pitch6 / 9 / 13 mm0.236 / 0.354 / 0.512 in
Rod pitch30 mm1.181 in
Rod diameter6 / 7 mm0.236 / 0.276 in
Side-guard thickness1.5 mm0.059 in
Guard height80 / 100 / 150 mm3.150 / 3.937 / 5.906 in
Reinforcement piece4 × 15 mm (reinforced heavy duty, 7 mm rod)0.157 × 0.591 in
Belt width660 / 760 / 1069 mm25.98 / 29.92 / 42.09 in
SurfacePickling / Electropolishing—
Self-Stacking Belt dimensional drawing
Self-Stacking Belt dimensional drawing

WHAT TO SEND FOR A QUOTE

Width and length · material · spiral pitch · rod pitch · guard height · turn ratio · equipment information · drawing, or the current belt or a sample
03
CONFIGURATION

Options we build, shown on real belts

Every option is confirmed on the approved drawing before production.

  • Guard height: 60, 80, 90, 100 or 120 mm
  • Width: 420, 580, 640, 660 or 760 mm
  • Turn ratio: 1.6 or 1.7
  • Surface: pickling or electropolishing
  • Accessories: side / stack guard; sprockets and rod spares per project

Construction, side guard and turn ratio

Self-Stacking Belt Standard
Standard
Self-Stacking Belt Heavy Duty
Heavy Duty
Self-Stacking Belt Reinforced Heavy Duty
Reinforced Heavy Duty
Self-Stacking Belt 60 mm / 2.362 in
60 mm / 2.362 in
Self-Stacking Belt 80 mm / 3.150 in
80 mm / 3.150 in
Self-Stacking Belt 90 mm / 3.543 in
90 mm / 3.543 in
Self-Stacking Belt 100 mm / 3.937 in
100 mm / 3.937 in
Self-Stacking Belt 120 mm / 4.724 in
120 mm / 4.724 in
04
VERIFIED BEFORE SHIPMENT

Tested before it ships

Real checks on finished self-stacking belts in our Ningjin factory, recorded before packing.

Stacking and turn radius checks

Self-Stacking Belt test – Tier-to-tier stacking engagement
Tier-to-tier stacking engagement
Self-Stacking Belt test – Belt formed to its turn radius
Belt formed to its turn radius

QA inspection on video — before it ships

Pitch, wire diameter and belt width measured on the finished belt, then checked against your approved drawing.

Pitch and wire diameter measured
Finished belt checked against drawing
05
APPLICATIONS

Where our self-stacking belts run

Suitability depends on belt specification, temperature and equipment design. We confirm it during specification review. See all 15 applications →

01

Freezing

Freezing lines, with the belt configured to the freezer design.

02

Cooling

Product cooling after baking or cooking.

03

Proofing

Proofing lines with spiral or straight conveyors.

06
HOW WE MAKE AND CHECK IT

From wire coil to export crate

Real photos from our Ningjin factory. Every formal belt passes final inspection against your drawing before packing.

Raw Material Inspection Equipment – Self-Stacking Belt
Raw Material Inspection EquipmentSpectral and hardness testing of incoming material
Stainless Steel Wire Drawing Equipment – Self-Stacking Belt
Stainless Steel Wire Drawing EquipmentWe draw our own stainless wire
Spiral Wire Forming – Self-Stacking Belt
Spiral Wire FormingSpirals formed on automatic machines
Spiral Wire Trial Inspection – Self-Stacking Belt
Spiral Wire Trial InspectionSpiral wire checked before production
Trial Production Sample Inspection – Self-Stacking Belt
Trial Production Sample InspectionFirst article confirmed before mass production
Upper and Lower Stacking Engagement Test – Self-Stacking Belt
Upper and Lower Stacking Engagement TestTier engagement tested
Edge Finish Inspection – Self-Stacking Belt
Edge Finish InspectionEdge finish checked
Wooden Crate Packing – Self-Stacking Belt
Wooden Crate PackingPacked in export wooden crates
Don’t take our word for it — inspect it. Third-party inspection and factory audits are supported on request, and customer factory visits are welcome.
Plan a Visit
07
YOUR CONCERNS

Your concerns, and how we handle them

“The stack geometry is off and tiers don't sit correctly.”

Stack geometry and guard structure are reviewed on your drawing, and geometry is checked at final inspection.

“Guard height or gap doesn't match the system.”

Guard height and the 1–2 mm rod-to-stack-plate gap are confirmed on drawing and checked before packing.

“The rods don't line up with the guards.”

Rod relationship is part of the engineering check and the dimension check.

“The next order won't match.”

Repeat orders are built from the same approved drawing and order records.

Field failures we review against

Failure points reported by customers on self-stacking belts in service. We review weld positions, stack-plate fit and guard structure on your drawing before production.

Self-stacking belt field failure – Corrosion at a cage weld
Corrosion at a cage weld
Self-stacking belt field failure – Burn-through at a link weld
Burn-through at a link weld
Self-stacking belt field failure – Crack at a link weld
Crack at a link weld
Self-stacking belt field failure – Rust at a stack-plate weld
Rust at a stack-plate weld
Self-stacking belt field failure – Deformed stack guards
Deformed stack guards
08
FAQ

What questions do you have for us?

Q01

What is a self-stacking belt?

A self-stacking belt carries its own tiers: side guards on each tier support the tier above, so the belt forms a self-supporting stack in a spiral system.

Q02

Which guard heights and widths do you make?

Guard heights of 60, 80, 90, 100 and 120 mm, and belt widths of 420, 580, 640, 660 and 760 mm, with a 30 mm rod pitch.

Q03

What turn ratios are available?

Our self-stacking belts are built for turn ratios of 1.6 or 1.7.

Q04

What gap do you hold between the rod and the stack plate?

We build to a 1–2 mm rod-to-stack-plate gap, confirmed on the approved drawing and checked before packing.

Q05

Can you build a belt for an existing self-stacking system?

Yes, after we review the equipment information, drawing and the current belt or a sample. We confirm stack geometry and guard height before quoting.

Q06

Can I inspect the belt or visit the factory?

Yes. Third-party inspection is supported on request, and customer factory visits are welcome.

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Still have a question? Ask our engineers.

Send your drawing, a photo or a worn sample. An engineer reviews it before we quote.

Manufacturing Experience Since 1998

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Only the first line is required. Built to your approved drawing or sample.

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