Optical emission spectrometers for metals analysis

Seamless quality control is essential for any metalworking, starting with tramp element analysis for scrap, inspection of in-coming materials, QA / QC in the foundry process, melt control and goods issue.

Optical Emission Spectroscopy, or OES, is a well trusted and widely used analytical technique used to determine the elemental composition of a broad range of metals.

Our stationary optical emission spectrometers offer the highest levels of accuracy and precision of the analytical results, with state-of-the-art CMOS and CCD technology. A powerful yet easy-to-use software package covers almost every application.

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Why Hitachi High-Tech´s stationary OES analyzers?

Low detection limits for a wide range of elements

  • Analyze the majority of metals and their alloys, even critical, residual, trace, tramp and inoculating elements
  • Widest spectral range covering nearly all interesting elements, including Nitrogen in steel
  • Integrated grade database
  • Results at your fingertips: wide range of result forms, automatic storage

High analytical performance using robust yet reliable technology

  • Very short start-up and measurement time
  • Sample stand accessible from three sides
  • High resolution CMOS and CCD technology for best spectral line separation
  • Extensive result, report and result processing options
  • Excellent long-term stability, ensured by peak position alignment (PPA)
  • Continuous use, even in rugged conditions

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Extension of calibration possible
Ultra low carbon steel analysis
Identification of duplex steel grades via nitrogen content
Determination of nitrogen in low alloy steels
High sample throughput
Analysis of difficult sample shapes (wires, small parts, curved surfaces…)
Manufacturing QC/QA
Melt process control ★☆☆ ★★☆ ★★★ ★★★
Low detection limits for trace and tramp element analysis ★☆☆ ★☆☆ ★★☆ ★★★
Determination of soluble and insoluble aluminum content in low alloy steel
Benchtop analyzer
Floor standing laboratory system
Optical transparency by Argon purge Argon purge Middle pressure system (vacuum/argon purge combi)

Middle pressure system (vacuum/argon purge combi)

Watch videos about our newest next level OES


OE750 features




Master every melt

GRADE Database included

The largest metals database for fast and easy grade identification is already installed on all our optical emission spectrometers: More than 15 million records for over 350,000 materials from 74 countries and standards. Update your instrument’s grade database with a few clicks, no time consuming research in norms and grade catalogues.

FREE 60 day trial

Charge Correction

This optional software automatically calculates the right quantity of material to add to a melt to bring it into spec. You no longer have to rely on human expertise and it greatly speeds up the charge correction process. The software also calculates the most cost-effective way to correct the melt by considering your available source material and furnace capacity.

If you are interested in more information, please read our blogs Automated charge correction with OES analysis and Software solution ensures charge correctioin without the complication.

Statistical Process Control

The optional SPC allows you to easily monitor your processes and notifies you if your melt, process or instrument is out of spec. You can set an upper and lower control limit for each element and see a visual representation of each element within those limits over time. This means you can reduce scrap and rework by spotting trends before they impact the final specification. On top of this, traceability functionality makes it easy to provide information
for customer or regulatory audits.

Our customer stories 

Köster und Co. GmbH uses spark spectrometer FM EXPERT for cost effective solution to analyze nitrogen at low detection limits. "We chose the FM EXPERT to have a cost-effective solution to analyze nitrogen."



Case Studies

Download our Guide: The Search for True Values

How to evaluate accuracy and calculate the error margin of spectroscopy measurements.

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Download our Guide: Cast Iron Melt Control with OES

How to achieve optimal melt control in cast iron with OES analysis

Download the Guide