8872 Servohydraulic Fatigue Testing System Up to 25 kN The Instron® 8872 is a compact tabletop servohydraulic testing system that meets the challenging demands of various static and dynamic testing requirements. With the actuator in the upper crosshead and a lower t-slot table, the 8872 makes an ideal platform for a variety of medical devices, biomaterials, advanced materials, and other component testing. Features • Double-acting servohydraulic actuator with force capacity up to ±25 kN (±5620 lbf) • High-stiffness, precision-aligned load frame with twin columns and actuator in upper crosshead • 100 mm (4 in) of usable stroke • Designed for both dynamic and static testing on a variety of materials and components • Choice of hydraulic configuration and dynamic performance to suit application • Extra-height frame option for testing longer load strings • Adjustable upper crosshead with hydraulic lifts and manual locks fitted as standard for easy adjustment of daylight • Patented1 Dynacell™ load cell technology for faster testing and reduction of inertial errors • Compact tabletop servohydraulic fatigue testing system – frame requires less than 0.4 m² (4.3 ft²) of space • Optional hydrostatic bearing actuators for higher side-load resistance or material critical applications, such as low-cycle fatigue • Designed to be used with the 3520 Series of Hydraulic Power Units • Compatible with a large range of grips, fixtures, chambers, video extensometers, protective shields, and other accessories Controller and Software The Instron 8872 is supplied with a digital 8800 controller that provides full system control including features such as automatic loop tuning, amplitude control, specimen protect, 19-bit resolution across the full range of transducers, and adaptive control technology. It also allows access to WaveMatrix™ Dynamic Testing Software, Bluehill® Software for static tests and other application specific software, such as the Low Cycle Fatigue or Fracture Mechanics suite.

Typical Testing Applications A wide range of system options, grips, fixtures, and accessories allow the Instron® 8872 to be customized for specific applications. Whether your application demands low or high temperatures, fluid immersion, or complex specimen gripping geometry, Instron offers a complete tailored solution. Fatigue Testing Mechanical or hydraulic wedge-action or collet grips, compression platens, and dynamic extensometers allow for high-frequency fatigue testing of various specimens. Tests can be at ambient conditions or combined with environmental accessories for testing at higher...

Component Testing Components, such as an engine mount, can be tested to evaluate fatigue normally associated with vibration and cyclic loading during normal use. Medical Device Testing Environmental Testing Testing medical devices, such as orthopaedic implants for hips and knees, can be performed in air or submersed into a fluid bath and heated to body temperature. Environmental chambers provide the capability to study mechanical properties of materials and components at high or low temperatures.

8872 Servohydraulic Fatigue Testing System | Up to 25 kN Specifications Standard Height Frame Daylight Opening (Maximum Between Load Cell and Actuator at Mid-stroke) Extra Height Frame 100 3.9 Twin-Column High-Stiffness Load Frame with Actuator in Upper Crosshead and T-Slot Base Hydraulically-Powered Lifts and Manual Locks Configuration Lifts and Locks Patented1 Dynacell™ Fatigue-Rated Load Cell with Capacity to Suit Actuator Load Cell ±0.5% of Indicated Load or ±0.005% of Load Cell Capacity (1-100%), Whichever is Greater 207 3000 Single-Phase Mains 90-132 or 180-264 VAC 45/65 Hz Power Consumption:...