Pakistan Mining Laboratory Upgrades XRF Sample Preparation with Hench Automatic Hydraulic Press

As X-ray fluorescence (XRF) analysis continues to play a critical role in mining exploration, mineral testing, and construction material quality control, reliable sample preparation has become essential for obtaining accurate analytical results.

Recently, Hench successfully supplied an Automatic Hydraulic Press to a leading laboratory under Pakistan’s mining and mineral resources sector, helping improve XRF pellet preparation efficiency, consistency, and data reliability.

This project demonstrates how automated sample preparation technology can significantly enhance laboratory performance while supporting international testing standards.

The Challenge: Inconsistent XRF Pellet Preparation

XRF analysis requires highly uniform pellets with smooth surfaces, consistent density, and minimal defects. The quality of the pressed pellet directly affects the accuracy, repeatability, and reliability of analytical results.

Before adopting the Hench Automatic Hydraulic Press, the customer relied on manual pellet preparation methods for testing:

• Mineral ores
• Geological samples
• Rock powders
• Cement materials
• Construction aggregates

However, manual pressing created several operational challenges.

Unstable Pressure Control

Pressure application depended heavily on operator experience, resulting in inconsistent pellet density and thickness between batches.

Low Sample Throughput

Manual operation limited daily production capacity, making it difficult to meet growing testing demands.

Poor Data Repeatability

Variations in pellet quality introduced analytical errors and reduced confidence in XRF results.

Difficulty Meeting International Standards

Inconsistent sample preparation made it challenging to achieve the reproducibility required for accredited laboratory testing.

As sample volumes increased, the laboratory required a more efficient and standardized XRF sample preparation solution.

The Solution: Hench Automatic Hydraulic Press for XRF Pellet Preparation

After evaluating the customer’s testing procedures and sample characteristics, Hench provided a fully automated hydraulic press specifically designed for XRF pellet production.

The system combines high-precision pressure control with intelligent automation to ensure consistent pellet quality across every sample.

High-Precision Pressure Control

The hydraulic press is equipped with a precision pressure sensor and intelligent closed-loop control system.

Key specifications include:

• Pressure range: 10–40 tons
• Pressure accuracy: ±0.1 ton
• Suitable for XRF pellet preparation requirements of 150–200 MPa
• Stable and repeatable pressing cycles

This level of control ensures uniform pellet density and minimizes sample-to-sample variation.

Fully Automated Pressing Process

The system supports programmable operation for:

• Sample loading
• Pressure application
• Holding time
• Pressure release
• Demolding

Up to 30 programmable stages can be configured, reducing operator intervention and eliminating dependence on manual experience.

Flexible Mold Compatibility

The standard Φ40 mm die set supports multiple pellet preparation methods, including:

• Boric acid backing
• Steel ring pellets
• Powder sample compaction

This flexibility allows laboratories to prepare a wide variety of geological and construction material samples.

Results: Improved Efficiency and Reliable XRF Data

Since installation, the Hench Automatic Hydraulic Press has significantly improved laboratory productivity and analytical consistency.

More Than Three Times Higher Productivity

Automation has increased daily sample preparation capacity by more than three times compared with manual pressing methods.

This enables the laboratory to process larger testing volumes while reducing turnaround times.

Higher Pellet Quality

Pressed pellets exhibit:

• Smooth surfaces
• Uniform density
• Consistent thickness
• Minimal cracking

The qualified pellet rate remains above 98%, helping ensure reliable XRF measurements.

Better Analytical Repeatability

Consistent pellet quality minimizes particle-size effects and human-induced variability, resulting in significantly improved XRF data stability and repeatability.

The laboratory now meets stringent international testing requirements for mining and construction material analysis.

Simplified Operation and Maintenance

The press features a user-friendly 7-inch touchscreen interface, allowing technicians to quickly learn system operation.

Its robust hydraulic design and stable performance help reduce maintenance requirements and operational costs.

Full Data Traceability

Built-in data recording functions automatically store pressure and time curves for each pressing cycle.

Laboratories can export data for:

• ISO laboratory compliance
• Quality management documentation
• LIMS integration
• Process verification

Supporting Modern Mining and Materials Testing Laboratories

According to the customer’s technical team, the Hench Automatic Hydraulic Press has successfully addressed the laboratory’s most significant XRF sample preparation challenges.

By improving efficiency, repeatability, and process standardization, the system has become an important part of their mineral analysis workflow.

For laboratories involved in:

• Mining exploration
• Geological surveys
• Cement testing
• Construction material analysis
• Environmental sample testing

Automated hydraulic presses provide a reliable solution for producing high-quality XRF pellets and improving analytical performance.

Hench: Advanced Hydraulic Press Solutions for XRF Laboratories

Hench specializes in the development and manufacturing of precision hydraulic presses and sample preparation equipment for material analysis laboratories worldwide.

With a focus on innovation, reliability, and customer-specific solutions, Hench continues to support laboratories in improving sample preparation efficiency and analytical accuracy.

As global demand for reliable XRF testing continues to grow, Hench remains committed to delivering advanced hydraulic press technology that helps laboratories achieve consistent, accurate, and repeatable results.