Ejector Arm/Plate: Force Capacity 500-5000 N

Component Specifications

Definition

The ejector arm/plate is a critical component in industrial coil ejection systems, designed to apply controlled linear or rotational force to dislodge finished metal, plastic, or paper coils from mandrels or production equipment. It ensures smooth material flow by preventing jams and maintaining production continuity in automated manufacturing environments.

Working Principle

Operates through pneumatic, hydraulic, or electromechanical actuation to extend and retract, applying direct force to the coil's surface. The arm/plate moves along a guided path to push coils onto conveyors or collection areas, with force and stroke length precisely controlled by the system's PLC.

Materials

Typically made from high-strength steel (e.g., AISI 4140) or aluminum alloys (e.g., 6061-T6) for durability; wear surfaces may include hardened steel inserts or polyurethane coatings to reduce friction and material damage.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Mounting Type	Flange or direct bolt-on
Repeatability	±0.1 mm
Stroke Length	50-300 mm
Actuation Type	Pneumatic/Hydraulic/Electromechanical
Force Capacity	500-5000 N
Operating Pressure	0.4-0.7 MPa (pneumatic), 10-20 MPa (hydraulic)

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 12100, ISO 13849-1, DIN 24537

Parent Products

This component is used in the following industrial products

Coil Ejection System

A mechanical system within a downcoiler that safely removes finished steel coils from the mandrel and transfers them to the next processing stage.

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Engineering Analysis

Risks & Mitigation

Mechanical failure due to wear
Misalignment causing coil damage
Overload leading to system downtime

FMEA Triads

Trigger: Wear on contact surfaces
Failure: Reduced ejection force or incomplete coil removal
Mitigation: Regular inspection and replacement of wear pads; use of hardened materials

Trigger: Actuator malfunction
Failure: Arm/plate fails to extend or retract
Mitigation: Implement preventive maintenance schedules; install backup sensors

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.2 mm for positioning, ±5% for force output

Test Method

ISO 12100 for safety, ISO 13849-1 for performance validation under load cycles

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.

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Manufacturers of Ejector Arm/Plate

Manufacturer profiles associated with Ejector Arm/Plate.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the main function of an ejector arm/plate?

To push finished coils off production equipment onto conveyors or collection points, preventing jams and ensuring continuous operation.

How is the force of an ejector arm controlled?

Through pneumatic, hydraulic, or electromechanical systems regulated by a PLC, with sensors providing feedback for precise force application.

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.

Ejector Arm/Plate