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BHT Standard bolt tensioners
Read moreHydraulic bolt tensioners for bolts from M20 to M130 & from 3/4 "to 5". Gravity return, end stroke indicator, guided piston. Maximum reliability and extra lifetime
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BWT Wind tensioners multistage
Read moreMultistage hydraulic spring return bolt tensioners. Ideal for use on wind towers, suitable for various bolt sizes. Operating pressure 1350 bar, safety valve, limit switch indicator, interchangeable nut bridge, spring…
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Special hydraulic bolt tensioners
Read moreBlackiron designs and manufactures special custom tensioners for all needs, suitable for bolts up to 7" and more.
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Threaded load cell bolt tensioners
Read moreThis Blackiron bolt tensioners series is ideal to be used in tight space applications