... tension tester is with double vertical pillar, it has good stability, wide application range, convenient usage,nonpolar timing, manual and automatic ... ; Stroke: 200mm;2.Pre-set the reciprocating test times;3.Testing speed: 30-240mm/min,nonpolar;4.Connecting SH/SP series ... , various clamps (purchase additionally). Electric Tension Tester; Tensile and Compressive Testing Equipment