Editorial Technical Reference

Linkage/Magnet Assembly

This page explains how Linkage/Magnet Assembly is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical linkage system integrated with magnetic elements for precise positioning and movement control within a float chamber.

Linkage/Magnet Assembly in a manufacturing environment
Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Linkage/Magnet Assembly

Definition
The Linkage/Magnet Assembly is a critical sub-component of the Float Chamber system that combines mechanical linkage mechanisms with magnetic elements to enable controlled movement, positioning, and feedback functions. It typically connects the float mechanism to control valves or sensors, utilizing magnetic coupling for non-contact force transmission and position sensing. The assembly is designed for use in machinery and equipment manufacturing, particularly in applications requiring precise liquid level control. It is constructed from materials such as stainless steel, neodymium magnets, and aluminum alloy, ensuring durability and reliable performance. The assembly operates within specified parameters, including an operating pressure range of 1.0–1.6 MPa, an operating temperature range of -20 to 80 °C, a stroke length of 10–50 mm, positioning accuracy of ±0.05 mm, magnetic pull force of 5–20 N, electrical rating of 24 V DC ±10%, ingress protection rating of IP54–IP65 (per IEC 60529), material grade 304/316 (per ASTM A240), and weight of 0.5–2.0 kg. These values are reference ranges and must be confirmed for the specific model and application. The assembly is not a standalone product but a component that integrates into a larger system. It is essential to verify all specifications with the legal manufacturer or supplier before procurement. The working principle involves a mechanical linkage that translates float movement into controlled displacement, while integrated magnets provide magnetic coupling for position sensing or actuation. As the float moves with liquid level changes, the linkage transmits this motion, with magnetic elements enabling non-contact position detection or force transfer to adjacent components. This design minimizes wear and enhances reliability. The assembly is suitable for various industrial applications, including level control in tanks, boilers, and process equipment. It is important to consider the operating environment, such as temperature and pressure, to ensure optimal performance. Regular maintenance and inspection are recommended to prevent failures. The assembly's performance can be affected by factors such as magnetic degradation at extreme temperatures and mechanical wear over time. Therefore, it is crucial to adhere to the specified operating conditions and to consult the manufacturer for application-specific guidance.
Working Principle
The assembly operates through a mechanical linkage that translates float movement into controlled displacement, while integrated magnets provide magnetic coupling for position sensing or actuation. As the float moves with liquid level changes, the linkage transmits this motion, with magnetic elements enabling non-contact position detection or force transfer to adjacent components. This non-contact mechanism reduces mechanical wear and allows for reliable operation in sealed environments. The magnetic coupling can be used to actuate a switch or sensor, providing feedback on liquid level. The linkage ensures precise mechanical movement, while the magnets offer a contactless interface, enhancing durability and response time.
Common Materials
Stainless Steel, Neodymium Magnets, Aluminum Alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Temperature-20–80 °COutside this range, magnetic properties degrade
Stroke Length10–50 mmCustomizable per application
Positioning Accuracy±0.05 mmEnsures precise float level control
Magnetic Pull Force5–20 NSufficient for reliable switching
Electrical Rating24 ±10% V DCFor sensor/actuator interface
Ingress ProtectionIP54–IP65Protects against dust and water jetsIEC 60529
Material Grade304/316Corrosion-resistant stainless steelASTM A240
Weight0.5–2.0 kgAffects installation and handling

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

Components / BOM
  • Linkage Arm Part
    Transmits mechanical motion from float to control mechanism
    Material: Stainless Steel
  • Magnet Housing Part
    Secures and positions magnetic elements within the assembly
    Material: Aluminum Alloy
  • Pivot Joint
    Provides rotational movement point for the linkage
    Material: Bronze Alloy
  • Magnets
    The magnetic elements themselves — the housing row only holds them.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
other spec: Max slurry concentration: 30% solids by weight, Flow rate: 0-100 L/min
temperature: -40°C to 150°C
Media Compatibility
✓ Water-based fluids ✓ Hydraulic oils ✓ Non-corrosive gases
Unsuitable: Highly abrasive slurries with >30% solids or corrosive chemicals
Sizing Data Required
  • Chamber diameter (mm)
  • Required stroke length (mm)
  • Operating magnetic force (N)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Magnetic field degradation
Cause: Thermal demagnetization from excessive operating temperatures or exposure to strong external magnetic fields
Mechanical linkage wear
Cause: Fretting corrosion and fatigue at pivot points due to cyclic loading and insufficient lubrication
Maintenance Indicators
  • Audible clicking or grinding noises during operation indicating mechanical wear
  • Visible misalignment or wobble in linkage movement suggesting bearing wear or loose connections
Engineering Tips
  • Implement temperature monitoring and thermal management to prevent magnetic degradation
  • Establish regular lubrication schedules with appropriate high-temperature grease for pivot points

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASTM A977/A977M - Standard Specification for Permanent Magnet Assemblies CE Marking - EU conformity for safety and performance

Quoted from the published standard.

Manufacturing Precision
  • Magnet-to-bore clearance: +/-0.05mm
  • Assembly parallelism: 0.08mm across mating surfaces
Quality Inspection
  • Magnetic flux density test using gaussmeter
  • Pull force measurement per ASTM F963
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
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Supplier transparency
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Manufacturers of Linkage/Magnet Assembly

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Frequently Asked Questions

What is the operating pressure range for this assembly?

The operating pressure range is 1.0–1.6 MPa. Always verify the exact pressure rating for your specific model with the manufacturer.

Can the assembly be used in high-temperature environments?

The specified operating temperature range is -20 to 80 °C. Outside this range, magnetic properties may degrade. For applications beyond this range, consult the manufacturer for suitability and possible modifications.

What is the positioning accuracy of the assembly?

The positioning accuracy is ±0.05 mm, which ensures precise float level control. This value is a reference and should be confirmed for the specific configuration and installation.

What ingress protection rating does the assembly have?

The assembly has an ingress protection rating of IP54–IP65, per IEC 60529, protecting against dust and water jets. Verify the actual rating for your model, as it may vary based on enclosure and sealing.

Related equipment

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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.

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