NEW Bench-Top Four Ball Tester

• Conforms to ASTM D2266, D4172, D5183, D2596, and D2783

• Compact benchtop design (62.5 × 50 × 90 cm) for efficient lab use

• 15-inch multi-touch control panel for intuitive operation and data visualization

• Integrated pneumatic loading system up to 1000 kg for accurate load control

• Predefined standard test protocols and customizable user-defined methods

• Built-in pneumatic moisture control ensures test stability and reproducibility

• Measures coefficient of friction, wear scar diameter, and load-carrying capacity

• Precision speed, temperature, and load control for exact test conditions

• Ideal for lubricant development, performance validation, and quality assurance

• Comprehensive data logging and report generation via advanced onboard software

Compact Precision. Powerful Performance.
The Koehler K93170 Benchtop Four Ball Wear and EP Tester delivers exceptional control, repeatability, and accuracy for evaluating lubricants under extreme mechanical stress.
With its touchscreen automation, pneumatic loading, and moisture control, it stands as the benchmark for modern tribological testing — ideal for QA labs, lubricant formulators, and R&D environments seeking compact yet comprehensive testing capability.

• Evaluation of wear preventive and extreme pressure performance of lubricants

• Determination of coefficient of friction and load-carrying capacity

• Comparative testing of industrial, automotive, and synthetic oils

• Quality control in lubricant blending and formulation laboratories

• Research and development in tribology and materials science

• Compliance testing for ASTM, IP, and ISO lubricant standards