Coated Heavy-Duty Circular PP Woven Core / Micro-Perforated Air Escape System
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Parameter |
Details |
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Target SEO Keywords |
Heavy Duty Block Bottom Valve Bags, Cement Valve Bags, Dry Mortar Packaging Sacks |
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Material Composition |
Heavy-Duty tubular PP woven fabric with thick inner lamination barrier |
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Joint Assembly |
Hot-air welded top and bottom patches (Zero stitching thread weak points) |
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Air Ventilation |
Micro-perforations (Laser or needle patterns) custom-scaled for powder venting |
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Capacities |
25kg, 40kg, 50kg (Standard cement packaging capacities) |
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Tensile Strength |
Ultra-high mechanical strength to pass rigorous 1.5-meter drop testing |
Designed to directly interface with high-output automatic rotary packer lines, sustaining maximum filling pressure without bursting or blowing out.
Maintains absolute dry storage, protecting moisture-sensitive cement-based compounds and additive polymers from humidity during maritime shipping.
Engineered for high-speed automated filling on rotary impeller packers. The box-shaped filled bag creates highly stable, square-shaped pallet stacks that prevent shifting during rough transport and logistics.
We stand behind the quality of our industrial packaging with strict testing standards. Our multi-wall kraft paper bags undergo rigorous drop tests and moisture-resistance evaluations to protect your materials in all weather conditions.
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