Application
Cement & Dry Mortar Packaging
How to specify FIBCs for cement and dry mortar: moisture control, dust at the fill point, and the construction that keeps a pallet square in transit.
Cement and dry mortar are heavy, dusty and moisture-sensitive. A 1,000 kg bag of cement that takes on water in a humid yard is not a slow-moving product, it is a solid block. Most of the specification work for this application is about keeping water out and dust in, long before it is about fabric strength.
The fill is usually fast and dusty: the bag hangs on a filling frame under a packing head, and fine cement finds any weak seam. Coated fabric, a filling spout with a skirt and a liner are the three levers that control this. Which of them you need depends on how long the bag sits in storage and where.
Stacking matters on site delivery. A tubular bag bulges and stacks poorly; a U-panel or baffle construction holds a squarer footprint and is usually what a distributor receiving pallets actually wants.
Tell us the fill weight, the bulk density, the filling head and the storage conditions, and we can confirm the construction and liner for your line.
Application Summary
Bagging cement and dry mortar at a batching plant or a dry-mix line: the bag has to survive a dusty, abrasive fill, hold 1,000-1,500 kg on a pallet, and keep moisture out until the bag is opened on site.
Typical Customers & Materials
Dry-mix mortar producers, cement packing terminals, building-material distributors and their contract packers, typically running 25 kg valve bags for retail and 1,000-1,500 kg FIBCs for site delivery. The buyer is usually a plant or packaging manager, not a purchasing clerk.
Primary Job
Move a tonne of cement or mortar from the packing line to the site without moisture ingress, without dust escaping at the fill point, and without the bag collapsing on the pallet during road transport.
Operating Process
- Filling
- Lifting
- Storage & Transport
- Discharge
Operating Process Notes
Filling is usually through a spout at the packing head, with the bag hanging on a filling frame; the fill is fast and dusty. Lifting is by forklift or crane with four corner loops, and the filled bag often goes straight onto a pallet or into a curtain-sided trailer. Storage can be a covered yard for weeks. Discharge on site is normally by cutting the base or opening a discharge spout over a mixer.
Key Risks
- Moisture
- Leakage
- Abrasion
- Overload
- UV Exposure
Key Risks - Additional Notes
Moisture is the first risk: cement sets hard, so an uncoated, unlined bag in a humid yard will ruin the load before it is used. Fine cement dust finds any weak seam, so seam quality and coating matter more than raw fabric strength. Abrasion at the filling spout and on rough pallets shortens bag life. Overload is usually a documentation risk rather than an engineering one - the SWL on the bag has to match the fill weight the plant actually runs. Outdoor storage for weeks makes UV stabilisation a real specification item, not a default.
Selection Notes
For site delivery on pallets where the bag must stay square and stack two high, a U-panel or baffle construction is the usual answer; a tubular bag is cheaper but bulges and stacks badly. For a dusty fill, choose a filling spout with a skirt and a coated fabric. If the customer stores in a humid yard, a loose or glued-in PE liner is worth more than a heavier fabric.
Scope & Limitations
This page covers bagging cement and factory-made dry mortar. It does not cover bulk tanker or silo delivery, and it does not set the customer's own storage rules. Requirements driven by a specific market regulation, or by a customer's own procurement standard, are confirmed per project.
Information Required
Fill weight and required SWL Required
The weight the plant actually fills, not the nominal bag size.
Bulk density of the cement or mortar Required
Determines the fill volume, and therefore whether the bag size on the line still works.
Filling method and spout size Required
Packing head type, spout diameter and whether the bag hangs on a frame.
Storage conditions and duration Required
Covered warehouse, covered yard or open yard, and for how many weeks.
Liner requirement
Loose PE liner, glued-in liner or none, and the gauge if already specified.
Printing and artwork
Colours, artwork file and the date the print-ready file must be approved.