Enerpac hydraulic rams have a well-earned reputation for precision and build quality, but like every hydraulic component they eventually develop seal-related issues. When a RC151K or RC53K ram starts weeping fluid at the piston rod or losing hold pressure overnight, the solution is a fresh sigillum Kit — not a new ram. Getting the right aftermarket hydraulic seal kit, dimensioned correctly and made from the right compound, is the entire job.
Quid RC151K et RC53K revera sint
The RC series are single-acting general purpose hydraulic cylinders widely used in maintenance, fabrication, and MRO applications. The RC151K is a 15-ton unit with roughly 1-inch stroke; the RC53K is a 5-ton unit with 3-inch stroke. Both use a relatively simple internal seal arrangement — a piston seal, a sigillum virgae , a sigillum tergentium rod seal, and a backup ring — but the dimensions differ enough that mixing up the kits produces immediate failure.
Parameter |
RC151K |
RC53K |
Capacitas |
quindecim toni |
5 TON |
Strophaeus |
~25 mm |
~76 mm |
Diametros virgae |
44,4 mm |
28,6 mm |
Materies sigillorum (ordinaria) |
NBR |
NBR |
Emendatio Recommandata |
FKM |
FKM |
Cur Kitae Sigillorum Post-Venditionis Sunt Rationabiles
Kitae sigillorum OEM pro cylindris Enerpac habentur, sed pretium per distributionem officialem notabiliter altius est. Geometria sigillorum in his cilindris non est propria — dimensiones sunt communes et compositiones bene cognitae. Qualis kitus sigillorum hydraulicus post-venditionis ab suppeditatore qui congruentiam dimensionalem et originem materiae confirmare potest eandem praebet efficaciam sigillandi ad fractionem pretii OEM.
Emendatio quae consideranda est est electio compositionis. Kitae Enerpac vulgares cum sigillis NBR veniunt, quae ad liquida hydraulica petrolea idonea sunt. Si officina tua utitur liquidis igni-resistentibus aut glycolis aquosis, aut si cilindrus in altis temperaturis ambientibus operatur, sigilla ex compositione FKM (Viton) usum diuturniorem praebent. Haec est facilis mutatio specificandi, quam kitae OEM saepe non offerunt.

Instauratio: Duo Gradus Quibus Omnia Dependent
Purgāte cavitātem pistōnis et vītrem perpaulum antequam nova signa adponātis. Omnis grānulum immīsum ex praecedentī fīssūrae signī in paucīs prīmīs impulsiōnibus novum signum pistōnis secābit. Trahe āctē pannum mundum et sine pilīs per cavitātem, inspiciāte sub lūce bona, et tunc tantum ad instāllātiōnem procedite.
Unguīte nova signa liquōre hydraulico munda et adpōnite ea sine torsione. Signa labiālia pro positiōne vītris suum principāle labium versus intus, ad liquōrem, habēre dēbent. Si signum tergēns contrā rēctum adpōnātur — quod saepe accidit — adpōsitio quidem mundā et speciōsa appāret, sed contaminātiōnem in omnī extensiōne vītris admittit.
HOVOO / HOUFU in scrīniīs habet kitās signōrum compatibilia RC151K et RC53K cum plēnā verificātiōne dimensionum et optiōnibus prōgressiōnis ad materiam FKM. Kitae marcae HOUFU ad singulam operātiōnem iam parātae mittuntur. Ad specificātiōnēs et adfinitātem ad hovooseal.com accēdite.
Fons: www.hovooseal.com
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