Stamping Die Trim Steel Blanks

Die Sets & Die Shoes

The die set (consisting of upper and lower die shoes) forms the structural foundation of every stamping die. Hebei Haoxinran Machinery manufactures precision die sets that provide rigid, stable support for die components and maintain accurate alignment through millions of press cycles.

Die Set Functions

The die shoe assembly serves several critical purposes:

• Structural Support: Rigid steel plates that hold all die components—punch holders, die buttons, trim steels, guides, and springs—in precise relationship to each other.

• Press Mounting: Mounting surfaces and bolt holes that secure the die to the press ram and bolster.

• Alignment System: Integrated guide pillars and bushings that maintain alignment between upper and lower halves.

• Waste and Part Flow: Openings and pass-through holes for slugs, scrap, and finished parts.

Die Set Types

We supply various die set configurations:

• Standard Back-Post: Guide posts at the rear of the die set, leaving front and sides accessible for material handling.

• Center-Post: Guide posts centered behind the working area, providing symmetric guidance.

• Four-Post: Four guide posts at the corners for maximum rigidity and alignment accuracy, used for large or precision dies.

• Two-Post Roll-Back: Hinged die set that allows the upper shoe to roll back for easy access to die components during maintenance.

• Progressive Die Sets: Custom-sized sets for progressive dies with additional features like stripper mounting and lifter holes.

Die Shoe Materials

Die shoes are typically made from:

• Cast Iron: Gray cast iron (e.g., ASTM Class 30) for standard die sets. Good vibration damping and easy to machine.

• Welded Steel Plate: Fabricated steel construction for large or custom-sized die sets.

• Cast Steel: Higher strength cast steel for heavy dies and high-tonnage applications.

• Aluminum: Lightweight aluminum shoes for low-tonnage and prototype dies where weight matters.

Precision Features

Our die sets include:

• Precision ground top and bottom surfaces for flatness and parallelism

• Bored guide post holes with accurate spacing and perpendicularity

• Mounting bolt holes and T-slot clearance holes

• Leveling pads and shim surfaces

• Integrated keyways for die location on the press

Haoxinran supplies standard and custom die sets. We can build to your die drawings or recommend a standard die set based on your die size and tonnage requirements.