The selection of a permanent magnetic iron removal filter needs to be comprehensively considered in terms of material characteristics, working conditions, and equipment parameters. The following is a systematic selection guide:

1. Main selection parameters

‌Magnetic field strength‌

Determined according to the particle size and content of iron impurities: micron-sized particles need to be ≥12,000 Gs (such as 1μm particles); strong magnetic models can reach more than 15,000 Gs;

NdFeB is preferred as the permanent magnet material to ensure magnetic stability at high temperatures.

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Processing capacity‌

Match the production line flow: For example, the chemical production line needs to be selected by tons/hour (t/h) or cubic meters/hour (m³/h);

The size of the magnetic rod is adapted to the pipeline space (diameter Φ25~50mm, length 100~1000mm).

‌Environmental resistance‌

Temperature range: mark the upper limit of the working temperature (such as 300℃ working conditions, select special models);

Anti-corrosion requirements: Teflon coating for acidic media (resistant to pH 1-14).

2. Key points for working condition adaptation

‌Material property analysis‌

Features of iron impurities: When the content is greater than 1%, select the unloading type (such as RCYD type), and when it is less than 0.5%, use the manual unloading type.

Fluid properties: High-viscosity liquids need to reduce the flow rate design to prevent magnetic adsorption failure.

‌Installation scenario optimization‌

Key interception points: conveyor belt outlet, packaging machine front section, or heat exchanger inlet.

Space restrictions: Modular magnetic groups are used in compact scenarios (such as the outlet of the saccharification tank in a food factory).

‌Intelligent operation and maintenance configuration‌

When the iron content fluctuates greatly, the metal detector is linked to achieve automatic start and stop.

High-risk environments (such as dusty areas) are equipped with an IP65 protection level.

3. Industry customized solutions

‌Power/Chemical System‌

For condensate treatment, select a model with a 95% iron removal rate and a dual-effect anti-corrosion system with magnetic adsorption area + magnetization area.

For corrosive fluids (such as hydrochloric acid), use a 316L stainless steel shell.

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Food/Pharmaceutical Field‌

Sanitary design: surface polishing Ra≤0.8μm, in compliance with HACCP certification;

The online cleaning (CIP) function is essential.

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Resource recovery scenario‌

For slag treatment, select a high-temperature model (300℃), with a metal recovery rate of more than 95%.

‌Selection process‌: clarify iron removal requirements → quantify material parameters (particle size/viscosity/iron content) → calculate processing volume → check environmental restrictions → select magnetic configuration → verify installation feasibility.

Note: High-value production lines recommend an integrated solution of "magnetic force + self-unloading + intelligent monitoring", which can reduce operating costs by 90%.

If you need to select and purchase permanent magnetic materials, you can contact us at any time. Our company will provide you with professional consulting services related to permanent magnetic materials!

Contact number: +8618419064914

Contact email: cocoslm2024@gmail.com

Company website: https://www.slmmagnet.com