Oz Seals re­vives the use of PK56 ro­bust hy­draulic seal for tough con­di­tions

DEMM Engineering & Manufacturing - - MAINTENANCE MATTERS -

An en­dur­ing ex­am­ple of a clas­sic seal de­sign for harsh con­di­tions where shock loads and pres­sure spikes present an is­sue is the PK56 pro­file (or PK58 with bear­ing/backup rings), which in re­cent times has been over­looked by seal sup­pli­ers and man­u­fac­tur­ers all over the world.

The ro­bust PK56 and PK58 hy­draulic pis­ton seals in su­per poly­mer, rather than the tra­di­tional rub­ber and fab­ric com­bi­na­tion, which can de­lam­i­nate. The su­per poly­mer makes it a long last­ing, wear re­sis­tant seal for a wide va­ri­ety of ap­pli­ca­tions with the bonus of su­pe­rior per­for­mance. These ap­pli­ca­tions in­clude hy­draulic cylin­ders for gen­eral hy­draulic sys­tems and presses, agri­cul­tural ma­chin­ery and mo­bile hy­draulic sys­tems. The ef­fi­ciency of this heavy duty seal ben­e­fits from the low fric­tion pro­vided by the triple lu­bri­cated prop­er­ties in Oz Su­per Poly­mer.

www.demm.co.nz/reader-en­quiry #150732.

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