{"id":1255,"date":"2026-07-09T05:41:39","date_gmt":"2026-07-09T05:41:39","guid":{"rendered":"https:\/\/lift-cylinders.com\/?p=1255"},"modified":"2026-07-09T05:41:39","modified_gmt":"2026-07-09T05:41:39","slug":"hydraulic-oil-fluid-compatibility-for-lift-cylinders","status":"publish","type":"post","link":"https:\/\/lift-cylinders.com\/zh\/application\/hydraulic-oil-fluid-compatibility-for-lift-cylinders\/","title":{"rendered":"Hydraulic Oil & Fluid Compatibility for Lift Cylinders"},"content":{"rendered":"
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FLUID ENGINEERING GUIDE \u00b7 OIL SELECTION \u00b7 LIFT CYLINDER COMPATIBILITY<\/span><\/p>\n

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Hydraulic Oil & Fluid Compatibility
\nfor Lift Cylinders
\nISO Grades \u00b7 Changeout Guide<\/span><\/h1>\n

The hydraulic fluid is not a passive filler in a lift cylinder system \u2014 it is the primary medium through which force is transmitted, heat is transferred, components are lubricated, and contamination is either controlled or spread. Selecting the wrong fluid grade, mixing incompatible fluids, or operating past the changeout interval destroys lift cylinder seals, scores rod surfaces, and corrodes internal components at rates that can compress a cylinder’s expected 5\u201310 year service life into months.<\/p>\n

ISO Viscosity Grades<\/span>
\nFluid Type Compatibility<\/span>
\nChangeout Intervals<\/span><\/div>\n

LIFT CYLINDERS \u00b7 FLUID COMPATIBILITY ENGINEERING \u00b7 JULY 2026<\/p>\n<\/div>\n<\/header>\n

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REFERENCE \u00b7 ISO VISCOSITY GRADE SELECTION BY OPERATING TEMPERATURE<\/p>\n

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COLD CLIMATE (<0\u00b0C)<\/p>\n

ISO 32<\/p>\n

Remains pumpable at low temp; adequate film strength in cold-start lift cylinder circuits<\/p>\n<\/div>\n

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TEMPERATE (5\u201335\u00b0C)<\/p>\n

ISO 46<\/p>\n

Standard grade for most industrial and mobile lift cylinder applications in moderate climates<\/p>\n<\/div>\n

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HOT CLIMATE (>35\u00b0C)<\/p>\n

ISO 68<\/p>\n

Maintains adequate viscosity at elevated operating temperature; prevents metal-to-metal contact at high ambient<\/p>\n<\/div>\n

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WIDE RANGE<\/p>\n

VG 46 HV<\/p>\n

High viscosity index fluid for equipment operating across a wide temperature range \u2014 one fluid year-round<\/p>\n<\/div>\n<\/div>\n<\/div>\n