Extremely high accuracy

Iron Loss Tester

Our iron loss tester is a multifunctional AC magnetic property measuring instrument designed for soft magnetic materials. It delivers fast, accurate, and repeatable core loss measurements for transformer manufacturers, power utilities, and material suppliers.

Bm&Ps accuracy: <±0.5%

Accurate measurement of magnetic flux density and iron loss, outperforming other devices on the market.

Multi-functional

Test CRGO, CRNGO, permalloy, amorphous, and nanocrystalline; toroidal cores, E-shaped cores, and U-shaped cores and others.

User-friendly

Allows for direct online measurement of samples and displays all parameters and measurement curves.

Sorting function

Provides sorting capabilities for key parameters such as Bm, Hc, Br, Hm, Ps, and Ua.

iron loss tester

——Features of Iron Loss Testing Device

Precision AC magnetic measurement for soft magnetic materials · ARM-based · Fully automated

High‑Speed Processing & Advanced Sampling

32‑bit ARM embedded processor – powerful data processing.
Proprietary synchronous sampling – excellent accuracy & repeatability.

Flexible Test Modes

Standalone single‑/multi‑point testing (no PC).
Avg. test time: ~12 sec per point.
Lock‑B / Lock‑H / Lock‑frequency (f) modes.
Manual harmonic amplitude superposition + harmonic loss measurement.

Wide Material & Sample Compatibility

Materials: GO/NGO silicon steel, Permalloy, amorphous, nanocrystalline.
Samples: open‑circuit (strip/sheet) & closed‑circuit (toroidal, E‑core, U‑core).

User Interface & Connectivity

320×240 LCD display.
USB2.0 HOST (U‑disk) + RS232 interface.
PC connection for extended analysis (Windows software).

Data Storage & Sorting

Sorting: Bm, Hc, Br, Hm, Ps, μa.
U‑disk storage – ideal for field use.
Export to Excel / direct printing.
Auto‑save & file management.

Measured & Calculated Parameters

Direct: f, Ipk(primary), Vpk(secondary), P, S.
Reported: Bm, Hm, μa, δ, Ps.
Converted: μ', μ", μL, μR, Q, AL.
Bm Hm μa Ps μ' μL

Curves & Reports

I-V-B test waveform
B‑H hysteresis loop (family)
AC μ & B‑H permeability curve
Ps‑B specific total loss curve
Harmonic analysis (selectable order)

Automation & Calibration

Automatic data calculation after test.
Auto‑ranging coefficient calibration.
Full database (raw data, sample, instrument).
PC connection: export to text file for any device.

——Uncertainty / Repeatability of Main Parameters

Measurement Uncertainty of Test Results (k = 2)

Frequency

Bm(%)

Hm(%)

μa(%)

Ps(%)

δ(%)

50Hz、60Hz

1.0

1.0~2.0

2.0

1.0

2.0

Repeatability of Test Results (at constant temperature)

Frequency

Bm(%)

Hm(%)

μa(%)

Ps(%)

δ(%)

50Hz、60Hz

±0.5

±1.0

±1.0

±0.5

±1.0

——Optional Tooling of Iron Loss Measuring Instrument

Epstein Frame / Epstein Tester

Single Electrical Steel Sheet Iron Loss Tester

Stress Permeameter

——Test Interface of Iron Loss Tester

Sample Waveforms

Hysteresis Loop Clusters

Hysteresis Loops

Loss Curves

—— Operation of the Iron Loss Tester

  • Step-by-step tutorial videos to ensure a hassle-free experience.

We Follow Best Rules

This iron loss testing instrument is manufactured in accordance with high-standard production processes and quality control procedures, and is subject to rigorous inspection prior to dispatch.

—— Applicable Standards the Iron Loss Tester

– GB/T 3655-2022: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame

– GB/T 13789-2022: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester

– GB/T 3658-2022: Method of measurement of the magnetic properties of soft magnetic metallic materials and powder metallurgy materials at frequencies from 20 Hz to 100 kHz using ring test specimens

IEC 60404-2: Magnetic materials – Part 2: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame

IEC 60404-3: Magnetic materials – Part 3: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester

IEC 60404-6: Magnetic materials – Part 6: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens

——Export Packaging for Iron Loss Testers

Each iron loss tester is carefully packaged in multi-layered protective export packaging that is waterproof and moisture-resistant to ensure safe transport during long-distance sea shipping.

Advantage

Committed To 100% Customer Satisfaction

Thinking and solving problems from the customer’s point of view

Trust and Worth

Our Partners

Our Shows

SMART ENERGY

Tokyo, JP

POWER EXPO

Atakent, KZ

ENERGY NEXT

Sydney, AU

ELECTRIC & POWER

Ho Chi Minh, VN

What Our Clients Say

Testimonials

R&D Manager

Emma

"We needed a fast and accurate way to check core loss in prototype motor stators. This instrument delivers stable readings with minimal drift. The software export function is very handy for our internal reports. Customer support responded to our questions within 24 hours."

Production Supervisor

Carlos Mendez

"Our operators learned to use it in less than an hour. The calibration routine is straightforward, and the probe connection is robust. "

Quality Engineer

Sophia

"We’ve been using this iron loss tester for six months on our electrical steel production line. The measurement repeatability is excellent, and the setup is intuitive. The single-sheet tester option saved us a lot of time compared to the traditional Epstein frame. Highly recommended."

Procurement & QA

Anna Schmidt

"We test every batch of silicon steel sheets from our suppliers. This iron loss tester gives us confidence to accept or reject materials on the spot. The carrying case and well-packed accessories also made international shipping worry-free. A reliable tool we use daily."

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Frequently Asked Questions

Not necessarily. The user interface is designed for intuitive operation with on‑screen prompts. However, we provide a detailed user manual and video tutorial (available on YouTube). For bulk orders, we also offer free online training via Zoom/Teams.

Yes. You can freely set the test frequency to either 50 Hz or 60 Hz (as well as other custom frequencies) through the control panel. This makes it compatible with global industrial standards.

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