Cushion Pins: Load Capacity 5-200 kN, Diameter 10-100 mm

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 286-2, DIN 7150, JIS B 0401

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.

View Product Details

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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Cushion Pins

Manufacturer profiles associated with Cushion Pins.

Sourcing Cushion Pins from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Chrome Plating

Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Cushion Pins