Die-Cut vs. Formed Molded Pulp: Two Processes, Two Cost Curves

Both die-cut and formed pulp use the same fibers but different economics. Die-cut parts start from flat board and suit simple pads; formed parts need molds but create true 3D geometry.

The Scenario: A pad that had to become a pocket

A consumer electronics brand was using die-cut pulp pads as corner cushions. The pads worked, but a new product needed a recessed pocket to hold a charging cradle, which a flat pad could not provide.

Pain Points

• Flat die-cut pads could not create depth for the cradle;
• Stacking multiple pads was an option but doubled part count;
• The team needed to compare tooling cost against pad cost.

The Solution: Matching process to geometry

The team benchmarked both routes for 500,000 units a year. Die-cut pads cost a few thousand dollars in tooling but could not make the pocket; formed pulp added a mold but made the part in one piece:

1. Die-cut economics Low tooling (CAD-cut blades), ideal for flat pads, dividers, and low-to-mid volumes.

2. Formed economics Mold tooling amortizes over volume; one 3D part replaces stacked pads.

3. Hybrid approach Formed core with die-cut lid layers balances tooling cost and function.

The Result: One formed part wins

The formed route delivered the cradle pocket in one part, cutting assembly time by 60% versus stacked pads. The mold cost amortized to $0.04 per unit over the annual volume.