X-ray Fluorescence (XRF)

S2 PUMA Series 2

Analyze. Everything. Fast

High-end EDXRF spectrometer

Elemental analysis from C – Am

Energy-Dispersive X-ray Fluorescence (EDXRF)

Next Generation SDD and 50 Watt Power
A high-power (50 W), long-life-time X-ray tube combined with closely coupled optics and the new HighSense™ detectors is the basis for unrivalled EDXRF performance.
Next generation software based on state-of-the-art programming combines functionality with ease-of-use for a smooth and worry-free operation.
Optimal Configuration for Every Need
Depending on sample type and desired throughput, the versions Single, XY Autochanger, Carousel, Automation, and Mapping-Stage cover all possible scenarios.

S2 PUMA Series 2 – Single

The S2 PUMA Series 2 with a single-position manual loading enjoys the same technical benefits as the S2 PUMA Series 2 XY Autochanger and S2 PUMA Series 2 Carousel.
It delivers a simple sample handling mechanism for low sample volumes and can be fitted with the fast HighSense™ detectors and the ergonomic TouchControl™.
Without the touchscreen it can be controlled remotely or via an external PC with the instrument control software SPECTRA.ELEMENTS.  

High Performance for Small Sample Batches

  • High power 50 Watt X-ray tube and 10-position automatic filter changer for optimal sample excitation
  • HighSense detectors: Bruker’s next generation silicon drift detectors (SDD) with super high count rates and excellent energy resolution for short measurement times
  • Convenient and fail-safe sample handling

Easy Operation and Shortest Training Time

  • Intuitive TouchControl software enables anybody to run the system after a short introduction (9 languages available)
  • Integrated glove-friendly touchscreen display allows routine operation without external PC 

Measure any sample in minutes: Solid, fused bead, pressed pellet, loose powder, liquid, bulk – simply load sample batches using the EasyLoadTM tray or place your bulk sample directly into the chamber. The S2 PUMA Series 2 offers the largest sample chamber with dimensions of 450 x 420 x 100 mm. Its carousel tray can hold mixed batches with up to 12 samples of 32, 40, or 51.5 mm in diameter or up to 18 samples of 40 mm in diameter.

The S2 PUMA Series 2 Carousel is the all-rounder among the benchtop EDXRF analyzers when it comes to sample versatility.

Any Sample Type

  • Solid, powder, liquid,
  • Bulk, one-piece, or prepared

Small-Spot Analysis

  • Collimator masks allow analysis of smallest particles within large samples
  • Spot size: 1 to 34 mm
  • HD camera for sample positioning and verification


  • Push-button standardless solution for elemental analysis
  • Powerful algorithms for quick and reliable results

S2 PUMA Series 2 – Mapping-Stage

The S2 PUMA Series 2 with mapping-stage makes multi-spot quality monitoring an easy task. It lets you quantify the elemental composition of your sample or even the thickness of a coating with high accuracy and spatial resolution (down to 1 mm). The linear motion-drive positions the sample precisely and reproducible. The actual position can be recorded with an integrated HD camera.

The mapping stage extends the application range of the S2 PUMA Series 2 into semiconductors and coatings, where spatial resolution is required.

Inserts for various sample sizes are available, ranging from 40 mm to 152 mm in diameter. Customized inserts are available on request. 

Key Benefits

  • Measure material homogeneity and/or coating thickness
  • Small and large samples – up to 152 mm in diameter
  • Collimator masks for spot sizes from 1 to 34 mm
  • High precision linear stage for accurate positioning
  • Integrated HD camera for automated image collection  

S2 PUMA Series 2 – XY Autochanger

WDXRF sample handling on a benchtop EDXRF unit – the S2 PUMA Series 2 XY Autochanger is equipped with a 20-position sample tray and sample grabber with liquid sample detection.

The instrument is ideal for larger sample volumes at a production line, where the S2 PUMA Series 2 can be operated with the integrated user-friendly TouchControl™ touchscreen. 

Sample Handling

  • Autonomous analysis of up to 20 samples
  • Sample type and order can be changed at any time, even during a measurement
  • Trays with other sample batches can be exchanged during an analysis

Power and Speed

  • The direct-excitation beam path makes full use of the 50 Watt power
  • New HighSense™ silicon drift detectors (SDD) with ultra-high count rates and excellent energy resolution

Instrument Protection

  • SampleCare™ ensures that vital instrument components are protected
  • Smart-UPS: In case of a power outage, delicate samples are retrieved from the sample chamber, before safely shutting down the system

S2 PUMA Series 2 – Automation

The only benchtop EDXRF which can professionally be integrated into fully automated laboratories. The S2 PUMA Series 2 Automation delivers results on elemental analysis 24/7. The instrument can be connected either via conveyer belt or robot arm link-up to the preparation module. The sample feed interface is at the instrument’s backside, so that the XY Autochanger capabilities remain fully available. Buffer positions inside the instrument in addition to the EasyLoadTM XY tray ensure smooth handling of automated and out-of-line samples at any time.

The HD camera can be used for sample verification: Samples in automation rings run overnight are often not available any more in the morning when staff returns. As a helpful validation tool, the pictures taken automatically by the camera can help to identify e.g. a failed sample surface and thus provide valuable information to clarify suspicious analysis results.

The LIMS-compatible instrument can communicate through Bruker’s dedicated AXSCOM software package with process control units and ensures full integration into existing or new laboratory environments.  

Key Benefits

24/7 Production Control

  • Conveyer belt or robot arm link-up
  • HD camera for sample verification
  • Fully LIMS-compatible with AXSCOM
  • Samples from tray can be analyzed in-between

Fast - Powerful - Accurate

  • The combination of a powerful (50 Watt) X-ray tube with Bruker’s fast HighSense™ silicon drift detectors of the newest generation results in short measurement times and excellent data quality.
  • Dedicated light element configuration for best analytical performance of elements such as sodium (Na)  

Short Measurement times with HighSense™ Technology

The HighSense detectors are equipped with a fast 8k multi-channel analyzer (MCA) for high count rates and excellent energy resolution. The new HighSenseTM XP detector is the latest addition to the HighSense Silicon Drift Detector (SDD) generation of the S2 PUMA Series 2.

Thanks to an ultra-high transmission graphene window, the HighSense XP offers best-in-class sensitivity for all elements detectable by EDXRF. In conjunction with the new state-of-the-art Detector Profiling feature, the HighSense XP sets new standards for benchtop EDXRF instruments.

HighSenseTM turns Power into Speed

The direct excitation beam path of the S2 PUMA Series 2 makes full use of the high-power 50 Watt X-ray tube. Optimal excitation of all elements in the sample is guaranteed with up to 50 kV voltage, up to 2 mA current, closely-coupled beam optics, and a 10-position primary beam filter-changer. In combination with the HighSenseTM detector technology this pays back immediately: Better detection limits, higher precision, shorter measurement times!

High Uptime with SampleCare™

SampleCare™ is a unique multi-layer system to protect vital instrument components from contamination. It protects the X-ray tube and the detector from spillage of liquid samples, from particles of solid samples, and from dust. The detector head is protected by DustShield™, an easy-to-replace cap with a high-transmission film. The tube is protected by the filter wheel. A sample type detection (XY Autochanger/Automation only) prevents the analysis of liquid samples, while the system is under vacuum.

SampleCare™ means high uptime and easy maintenance!

Intuitive operation with TouchControl™

TouchControl™ is the S2 PUMA Series 2’s integrated touch screen for easiest instrument operation. The TouchControl user interface enables users with only minimal training to run routine measurements. The tiles on main screen make important functions easily available while restricting access to instrument configuration and calibrations.

  • Island-mode: Routine analysis without external PC
  • Shortest training times sufficient to operate instrument
  • Glove-friendly touchscreen
  • Software available in nine different languages
    (English, German, French, Spanish, Portuguese, Italian, Russian, Chinese, Japanese)
  • Controlled access to spectrometer configuration ensures high instrument uptime and data integrity


SPECTRA.ELEMENTS is the powerful and intuitive spectrometer software for the S2 POLAR, the S2 PUMA Series 2 and the S6 JAGUAR. It provides a wide range of tools for full spectrometer control and was developed with the user in mind: Its integrated design avoids floating windows and its tab-based layout allows quick access to all functionality.

  • Dedicated User Levels for smooth operation, complaint with your data management strategy
  • Blanks, Duplicates, and Quality Checks can be setup for process and quality control
  • Evaluation Plug-In for re-evaluation of analysis results without re-measuring
  • Post-Processing tool for customized, automated data export
  • Full LIMS-compatible with all necessary connectivity included

Optional Add-Ons

  • 21 CFR Part 11-compliant version for product quality applications in FDA-regulated industries
  • SMART-QUANT FP for fast, convenient and reliable standardless analysis
  • TouchControlTM interface for easiest routine system operation
  • IQ/OQ procedures are offered with the installation of the instrument


SMART-QUANT FP is offered as fully integrated component of the S2 PUMA Series 2’s instrument software package SPECTRA.ELEMENTS, delivering reliable elemental compositions for solid, fused, pressed, powdered or liquid material, even with minimal user input.

  • Elemental Range: Sodium to Americium (Na – Am)
  • Concentration range: ppm to 100%
  • Atmospheric Modes: Air, Helium, Vacuum
  • Max. generator voltage: 30 and 50 kV

SMART-QUANT FP is set up to work in full Fundamental Parameter (FP) mode – this means no calibrations necessary!

  • Push-button solution for quick and reliable analysis of unknown samples
  • Adjustable standardless solutions to fit all applications’ needs
  • Powerful FP machine with optional empirical background for full operator flexibility
  • Intelligent algorithm with peak identification and overlap correction
  • Element ID for fast evaluations 
  • Evaluation Plug-In to optimize the algorithm and re-evaluate the measurements
  • Global drift correction

S2 PUMA Series 2 Specifications




Element Range

Sodium to americium (Na – Am)

Carbon to americium (C – Am) with light element detector

Covers most of the periodic table of elements

Concentration Range

From ppm to 100 %

Measures major and trace elements in one sample

X-ray Tube

Pd or Ag anode; 50 W, max. 2 mA, max. 50 kV (30 kV available)

High power combined with direct excitation and closely-couples beam optics for optimal analytical performance

Primary Beam Filters

10-position automatic filter changer

Optimized excitation for enhanced peak-to-background ratio. Protects the X-ray tube.


HighSense™ (Na – Am)

HighSense™ XP (C – Am)

Peltier cooled Silicon Drift Detector (no need for liquid nitrogen) protected DustShield™

Super-high count rates and excellent energy resolution.

Collimator Masks*

1, 3, 8, 12, 18, 23 and 28 mm (34 mm without mask)

For small spot analysis

Sample Observation*

Integrated HD video camera

For exact sample positioning and documenting the measurement position on a sample

Atmosphere Modes

Air mode

For heavier elements in all sample types

Vacuum mode*

Best light element performance for stable samples and lowest cost of operation

Helium mode*:

For best light element analysis in volatile liquids such as fuels

Helium mode with reduced pressure*

For best light element performance with non-volatile liquid and loose powder samples and lowest helium consumption

Nitrogen mode*

Cost saving analysis of liquid samples


Integrated 12.1” TFT touchscreen, adjustable, languages: English, German, French, Spanish, Portuguese, Italian, Russian, Chinese and Japanese (others on request)

Easy and Failsafe operation (only minimal training required)

Sample Types

Loose powders, granules, solids, pressed pellets, fused beads, and liquids

Analyze all sample types

Sample Rotation*

Spins all sample types and sizes

For better measurement statistics with inhomogeneous samples


Built-in Ethernet port RJ45, 3x USB ports for mouse, keyboard, printer

Easy to connect to your network

Power Requirements

100-240 V, 50/60 Hz, max. power consumption 600 VA

Standard wall plug

Quality & Safety

DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, 2006/42/EC (CE-certified Machinery directive), 2014/35/EC (Electrical equipment), 2014/30/EC (Electromagnetic Compatibility), German Type Approval and Vollschutz according to BfS RoV, fully radiation-protected system; radiation <1 μSv/h (H*), Compliant to ICRP, IAEA, EURATOM

*optional packages  

S2 PUMA Series 2


S2 PUMA Series 2


S2 PUMA Series 2


S2 PUMA Series 2

XY Autochanger

S2 PUMA Series 2


Single position,

Manual loading

EasyLoad™ Carousel sample

tray with 12 or 18 positions,

removable to make room for

large bulk samples

Single position,

Manual loading

EasyLoad™ XY sample tray

with 20 positions, removable;

Grabber with automatic liquid

sample detection

EasyLoad™ XY sample tray with 20 positions, removable;

Grabber with automatic liquid

sample detection;

Interface to conveyor belt or robot arm link-up to sample preparation

Up to 51.5 mm (2.03") Ø;

Liquid cups up to 50 ml

Up to 51.5 mm Ø; Liquid cups up to 50 ml; Bulk samples up to 450 x 420 x 106 mm (width x depth x height)

Up to 152 mm Ø; customized inserts available on request

Up to 40 mm Ø and

38 mm height in sample holders, or 51.5 mm Ø as sample ring; Liquid cups up to 20 ml

Up to 40 mm Ø and 38 mm height, or 51.5 mm Ø as sample ring; Liquid cups up to 20 ml

67 x 71 x 37 cm (width x depth x height); 87 kg


67 x 71 x 57 cm (width x depth x height); 130 kg


67 x 71 x 57 cm (width x depth x height); 132 kg


67 x 71 x 61 cm (width x depth x height); 108 kg


67 x 71 x 61 cm (width x depth x height); 110 kg


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S2 PUMA Series 2 Resources

Lab Reports & Product Sheets

Service & Support