Hy­draulics over­heat­ing?

DEMM Engineering & Manufacturing - - PNEUMATICS & HYDRAULICS -

As sum­mer ap­proaches, the ex­tra heat in the at­mos­phere puts more pres­sure on hy­draulic sys­tems. Hyspecs rec­om­mends an oil op­er­at­ing tem­per­a­ture of 60°C, and says there are two op­tions to con­trol the sit­u­a­tion. • Build a large oil tank to dis­si­pate

the heat. • In­stall a hy­draulic oil cooler that’s ca­pa­ble of cool­ing ap­prox­i­mately 30 per cent of the sys­tem in­put power. Oil cool­ers typ­i­cally come as ei­ther air/oil or wa­ter/oil va­ri­ety. The air/oil cool­ers have an elec­tric or hy­draulic fan blow­ing over the fins to cool the oil f low­ing inside the ra­di­a­tor.

Oil/wa­ter cool­ers are de­signed to have oil run­ning through a large outer tube with a sep­a­rate se­ries of smaller tubes run­ning inside this, con­tain­ing f low­ing fresh or salt wa­ter. Call HYSPECS 0800 497 732 or email us on hyspecs@hyspecs.co.nz

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