INDUSTRY COMPONENT

Cushion Pins

Cushion pins are precision components in die cushion systems that absorb impact forces during metal stamping operations.

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Component Specifications

Definition
Cushion pins are cylindrical components installed in die cushion systems of mechanical and hydraulic presses. They function as force-transmitting elements that absorb and distribute impact energy during blanking, drawing, and forming operations. These pins maintain consistent pressure on the blank holder or pressure pad, ensuring uniform material flow and preventing wrinkles or tearing in stamped parts.
Working Principle
Cushion pins operate by transmitting hydraulic or pneumatic pressure from the cushion cylinder to the die surface. During the press stroke, the pins compress against the cushion system, creating controlled resistance that regulates material flow. The pins retract when pressure is released, allowing for part ejection and die clearance.
Materials
Typically made from alloy steels (AISI 4140, H13), tool steels (D2, A2), or case-hardened steels. Surface treatments include nitriding, chrome plating, or hard coating for wear resistance.
Technical Parameters
  • Length 50-500 mm
  • Diameter 10-100 mm
  • Hardness 58-62 HRC
  • Tolerance h6/h7
  • Load Capacity 5-200 kN
  • Surface Finish Ra 0.4-0.8 μm
Standards
ISO 286-2, DIN 7150, JIS B 0401

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cushion Pins.

cushion pins die cushion components stamping press parts metal forming tools press tooling blank holder pins Cushion Pins in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Die Cushion System

A hydraulic or pneumatic system integrated into stamping presses that provides controlled pressure and cushioning during the metal forming process

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Engineering Analysis

Risks & Mitigation
  • Wear and tear from cyclic loading
  • Misalignment causing uneven pressure
  • Material fatigue leading to fracture
  • Contamination affecting performance
FMEA Triads
Trigger: Insufficient lubrication
Failure: Increased friction and premature wear
Mitigation: Implement scheduled lubrication and use high-temperature grease
Trigger: Overloading beyond rated capacity
Failure: Bending or fracture of pins
Mitigation: Install pressure sensors and overload protection systems
Trigger: Misalignment during installation
Failure: Uneven pressure distribution and part defects
Mitigation: Use alignment tools and verify perpendicularity during setup

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.01 mm diameter, ±0.05 mm length
Test Method
Dimensional inspection with CMM, hardness testing with Rockwell scale, load testing with hydraulic press

Buyer Feedback

★★★★☆ 4.8 / 5.0 (17 reviews)

"The technical documentation for this Cushion Pins is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Cushion Pins so far."

"Testing the Cushion Pins now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

What is the primary function of cushion pins in die cushion systems?

Cushion pins transmit controlled pressure from the cushion system to the die, ensuring uniform material flow during stamping operations and preventing defects like wrinkles or tears.

How do I select the right cushion pin for my application?

Consider press tonnage, material thickness, die design, required pressure distribution, and operating environment. Consult manufacturer specifications for load capacity and dimensional compatibility.

What maintenance do cushion pins require?

Regular inspection for wear, lubrication of sliding surfaces, checking for bending or deformation, and replacement when surface damage exceeds tolerance limits.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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