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Servo-hydraulic Testing Machines HA-model
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Servo-hydraulic Testing Machines HA-model - 1

Product Information Servo-­ ydraulic load frames – HA Series h HA 100 on air-springs with hydraulic wedge grips Drawing of HA load frame Application The frames feature extremely high-precision alignment. After installation of the testing actuator and load cell the alignment accuracy is +0.1 mm per meter; for distances less than 350 mm the offset is a constant 0.05 mm. Plane parallelism is equal to or better than 0.03 mm per 100 mm. With the testing actuator installed in the lower crosshead and the load cell on the upper crosshead, HA series load-frames represent the classical servo-hydraulic testing machine as used for determination of material characteristic values under dynamic loading, e.g. S-N test (fatigue test), fracture mechanics, LCF (low-cycle fatigue). Description of operation PI519 2.1112 These 2-column load frames are designed for materials testing under dynamic load in a closed load path. The frame is supported on anti-vibration leveling units, ensuring negligible force transmission to the floor during normal operation. Where tests or environmental conditions are of a critical nature it is advisable to use the optionally available air-springs, which have a natural frequency of approximately 3 – 6 Hz. HA load frames have particularly high axial and lateral stiffness, enhancing testing system performance and enabling higher frequencies and specimen deformations. In addition, high lateral forces which can occur during compression and flexure tests are easily absorbed, making the frames suitable for combined tensile or compression/torsion loads. PI519_HA_Serie.indd All fixtures are mounted via a flange with centering ring, eliminating the need for subsequent alignment of the load path. Features • 4 standard nominal capacities from 50 kN to 500 kN • actuator recessed into the lower crosshead to minimize piston rod length. • ergonomic working height • particularly suitable for integration of a high-temperature furnace or chamber • hard-chromed columns for precise guiding of upper crosshead • hydraulic clamping and adjustment for easy positioning of upper crosshead • integrated oil-drip tray for collecting minor leakage • safety guard to comply with EC Machinery Directive, depending on application

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Servo-hydraulic Testing Machines HA-model - 2

Zw/ck # Roell Materials Testing Product Information Servo-hydraulic load frames - HA Series Technical data Dynamic nominal force kN Crosshead clamping electrohydraulic Crosshead adjustment electro-hydraulic A - max. height of test frame [mm] 2720 (32201) 2720 (32201) 2980 (34801 AK - tilted height for erection [mm] 2850 (33301) 2850 (33301) 3150 (36201 B - max. width of test frame [mm] 1090 1090 1235 C - max.depth of test frame [mm] 780 780 1130 F - height top edge lower crosshead2 [mm] 1020 1020 1020 H - max. working test area height4 [mm] 1260 (17601) 1290 (17901) 1525(20251 J - crosshead...

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