Cryogenic Ball Bearing Rail Systems for 400-Ton Arctic Mining...

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2025-09-10 02:37:02 - Translate

Cryogenic Ball Bearing Rail Systems for 400-Ton Arctic Mining Haulers: 600 mm Strokes at −45 °C

Two hundred kilometres north of the Arctic Circle, autonomous haulers dump 400 tons of iron ore every ten minutes. The hydraulic lift cylinder that tilts the 80 m³ bed is guided by ball bearing rail systems that must survive −45 °C cold starts, 6 g vibration, and 30-year salt-spray exposure without a single defrost cycle. Cryogenic metallurgyStandard 52100 steel becomes brittle...

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