Steel backing plate: Weight Capacity 50-500 kg/m

Component Specifications

Definition

A steel backing plate is a precision-engineered flat or contoured metal component that serves as the foundational structural element in magnet track assemblies. It provides mechanical support, maintains alignment of magnetic elements, distributes operational loads, and offers secure mounting points for the entire track system. Typically manufactured through laser cutting, CNC machining, or stamping processes, it ensures dimensional stability under varying thermal and mechanical stresses.

Working Principle

The steel backing plate functions as a rigid substrate that anchors and aligns magnetic elements (permanent magnets or electromagnets) in a track configuration. It prevents deformation under magnetic attraction/repulsion forces and mechanical loads, maintains precise spacing between magnetic components, and transfers operational forces to the machine frame through its mounting points. Its high stiffness-to-weight ratio ensures minimal deflection during dynamic operations.

Materials

Low-carbon steel (AISI 1018/1020), medium-carbon steel (AISI 1045), or alloy steel (4140) with yield strength 250-550 MPa; thickness 3-20 mm; surface treatments: zinc plating, powder coating, or phosphate coating for corrosion resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hardness	HRB 70-90
Thickness	5-15 mm
Weight Capacity	50-500 kg/m
Surface Roughness	Ra 1.6-3.2 μm
Flatness Tolerance	±0.1 mm/m
Mounting Hole Pattern	Grid or custom

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 2768-m, DIN 7168

Parent Products

This component is used in the following industrial products

Magnet track

A linear array of permanent magnets that provides the magnetic field for linear motor propulsion.

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Engineering Analysis

Risks & Mitigation

Fatigue cracking at mounting points
Corrosion in humid environments
Dimensional instability under thermal cycling
Magnetic interference if ferromagnetic material is unsuitable

FMEA Triads

Trigger: Insufficient thickness or material strength
Failure: Plate deformation under load causing misalignment
Mitigation: Use FEA analysis during design, select appropriate steel grade, add reinforcing ribs

Trigger: Improper surface treatment
Failure: Corrosion leading to structural weakening
Mitigation: Apply zinc plating or powder coating, specify regular inspection intervals

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 2768-m: ±0.2 mm linear dimensions, ±0.1° angular dimensions

Test Method

Dimensional verification with CMM, flatness testing with optical comparator, load testing with hydraulic press to 150% design load

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

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Manufacturers of Steel backing plate

Manufacturer profiles associated with Steel backing 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 primary function of a steel backing plate in magnet tracks?

It provides rigid structural support, maintains magnetic element alignment, distributes operational loads, and offers secure mounting to prevent system deformation.

How do you select the appropriate material for a steel backing plate?

Consider load requirements (carbon steel for moderate loads, alloy steel for high stress), corrosion environment (coatings needed), and thermal stability requirements.

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.

Steel backing plate