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Reference ranges in mm and inch, not free combinations. The approved drawing sets the final values.
| Parameter | Metric (mm) | Inch (in) |
|---|---|---|
| Material | SUS304 / SUS316 | — |
| Spiral pitch | 6 / 9 / 13 mm | 0.236 / 0.354 / 0.512 in |
| Rod pitch | 30 mm | 1.181 in |
| Rod diameter | 5 mm | 0.197 in |
| Side-guard thickness | 1.5 mm | 0.059 in |
| Guard height | 60 / 80 / 90 / 100 / 120 mm | 2.362 / 3.150 / 3.543 / 3.937 / 4.724 in |
| Belt width | 420 / 580 / 640 / 660 / 760 mm | 16.54 / 22.83 / 25.20 / 25.98 / 29.92 in |
| Turn ratio | 1.6 / 1.7 | — |
| Rod-to-stack-plate gap | 1–2 mm | 0.039–0.079 in |
| Surface | Pickling / Electropolishing | — |
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.
| Parameter | Metric (mm) | Inch (in) |
|---|---|---|
| Material | SUS304 / SUS316 | — |
| Spiral pitch | 6 / 9 / 13 mm | 0.236 / 0.354 / 0.512 in |
| Rod pitch | 30 mm | 1.181 in |
| Rod diameter | 6 / 7 mm | 0.236 / 0.276 in |
| Side-guard thickness | 1.5 mm | 0.059 in |
| Guard height | 80 / 100 / 150 mm | 3.150 / 3.937 / 5.906 in |
| Reinforcement piece | 4 × 15 mm (reinforced heavy duty, 7 mm rod) | 0.157 × 0.591 in |
| Belt width | 660 / 760 / 1069 mm | 25.98 / 29.92 / 42.09 in |
| Surface | Pickling / Electropolishing | — |


Every option is confirmed on the approved drawing before production.








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


Pitch, wire diameter and belt width measured on the finished belt, then checked against your approved drawing.
Suitability depends on belt specification, temperature and equipment design. We confirm it during specification review. See all 15 applications →
Real photos from our Ningjin factory. Every formal belt passes final inspection against your drawing before packing.








Stack geometry and guard structure are reviewed on your drawing, and geometry is checked at final inspection.
Guard height and the 1–2 mm rod-to-stack-plate gap are confirmed on drawing and checked before packing.
Rod relationship is part of the engineering check and the dimension check.
Repeat orders are built from the same approved drawing and order records.
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.





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.
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.
Our self-stacking belts are built for turn ratios of 1.6 or 1.7.
We build to a 1–2 mm rod-to-stack-plate gap, confirmed on the approved drawing and checked before packing.
Yes, after we review the equipment information, drawing and the current belt or a sample. We confirm stack geometry and guard height before quoting.
Yes. Third-party inspection is supported on request, and customer factory visits are welcome.
Send your drawing, a photo or a worn sample. An engineer reviews it before we quote.
Manufacturing Experience Since 1998
Only the first line is required. Built to your approved drawing or sample.
We review your details and reply with what we need to quote.
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