"Heavy-duty" isn't a single spec. It's a target: a box that carries a demanding weight, stacks without crushing, and survives industrial handling. Hitting it reliably is a matter of the right combination of ply, flute, and liner grade, backed by testing.
We engineer heavy-duty corrugated to the load rather than to a label, using stronger constructions and high-bursting-factor kraft where the numbers demand it.
5-ply and 7-ply constructions with the correct flute combination carry industrial loads that single-wall can't. We choose the construction from the weight, not a default.
Liner grade matters as much as ply. High bursting-factor virgin kraft raises compression and puncture strength per gram for heavy contents.
Heavy-duty claims need proof. We measure BCT and ECT on the dispatch dock and certify them, so the box meets the load and the buyer's spec.
Dense and sharp-edged goods stress corners and walls. Construction and, where needed, internal reinforcement protect against puncture and edge crush.
Heavy-duty 5-ply boxes for export, industrial, and palletised loads.
02Heavy 5-ply construction with internal partitions and reinforcement.
03Everyday transit and shipping cartons in B and E flute profiles.
Twenty-five years of presses, four production departments, and a team that picks up the phone. Dispatch to anywhere in India.