Extrusion Dies
For any extrusion die manufacturer, good die design is a major factor in ensuring extrusion dies will always produce a quality final product. Balanced melt flow across the die ensures uniform exit velocity and output consistency. Expert die design achieves this uniformity in a continuous fashion with minimal pressure drop.
Die design also affects productivity since it impacts on the throughput of the extruder. These parameters directly relate to extruder back pressure and, in turn, product density and screw efficiency. Critical factors include:
- Open Area Size - the ratio of the die cross section to the screw cross section.
- Land Area Size – the portion of the die that forms the shape of the product.
- Die Material - specifically its coefficient of friction.
Quick RELEASE

All dies are manufactured using a smart, modular design to allow rapid fitting and removal. The special Diamond America swing bolt configuration means that changeover between runs, or disassembly for cleaning or maintenance takes only minutes.
Custom Extruder Dies
Diamond America engineers test the material to be extruded to ensure correct die design for its specific properties and rheology using computer flow analysis. They also assess and consider the client’s process, production and yield requirements. This thorough approach provides the critical information Diamond America needs to create and build a custom die, whether monolayer or multilayer, that will fulfill all material requirements and ensure a consistently excellent extruded product.
Whether it’s Flow Control Dies, Forming Extrusion Dies or Sheet and Film Dies, all Diamond America extrusion dies are backed by intimate knowledge of extrusion equipment and optimized for overall equipment efficiency.
Diamond America offers custom designed extrusion dies for any application.
- Highest grade materials
- Best die tooling in the industry
- Experts in metallurgy, heat treatment & coatings

Flow Control Dies
Multi-channel flow control dies are designed to deliver maximum flow performance to strand and strip dies.

Forming Extrusion Dies
Forming, coating and laminating extrusion dies are used to produce any shape, from solid slugs to multi-cell monolith.

Sheet and Film Dies
Process many types of sheet and film materials including plastic, rubber, silicone and food with superior performing dies.