K518 Hydraulic piston seals

K518 is a piston seal consists of one NBR profile ring, thermoplastic elastomer support rings, and glass-reinforced POM guide rings. K518 is widely preffered in mobile machinery due to glass-reinforced POM guide rings which provides better load bearing propoerties in longer stroke cylinders.

Advantages

Superior sealing performance and low friction with its special design
Superior load bearing capability with special reinforced material for guide ring
No additional guide ring requirement at low and medium duty applications thanks to compact design
Simple groove design at one-piece piston
Long service life and easy installation

Area of Application

Agricultural machinery
Construction machinery
Mobile machinery
Loading platforms
Forklifts

In this catalog

102 K518 parts, bore 16–275 mm across 79 sizes. Most common section heights: 25.4 mm (25), 22.4 mm (20), 20.5 mm (11).

Same bore, other series

If a K518 size is not the right profile, these cover the same ID/OD combinations:

102 parts in catalog

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Technical table

Live column filters for code, category, ID, OD and H — same workflow as the store.

102 parts

Code (SKU)	Category	ID (d)	OD (D)	H (L)	Action
K518 025-016	K518	16	25	13.5	View
K518 030-021	K518	21	30	13.5	View
K518 032-022	K518	22	32	16.4	View
K518 032-024	K518	24	32	15.5	View
K518 035-025	K518	25	35	16.4	View
K518 040-024	K518	24	40	18.4	View
K518 040-030	K518	30	40	16.4	View
K518 040-030/1	K518	30	40	12.5	View
K518 040-032	K518	32	40	15.5	View
K518 040-032/1	K518	32	40	10	View
K518 044.45-028.57	K518	28.57	44.45	19.05	View
K518 045-029	K518	29	45	18.4	View
K518 045-035	K518	35	45	16.4	View
K518 050-034	K518	34	50	20.5	View
K518 050-034/1	K518	34	50	18.4	View
K518 050-038	K518	38	50	20.5	View
K518 050.8-034.92	K518	34.92	50.8	19.05	View
K518 055-039	K518	39	55	20.5	View
K518 055-039/1	K518	39	55	18.4	View
K518 055-045	K518	45	55	12.5	View
K518 060-044	K518	44	60	20.5	View
K518 060-044/1	K518	44	60	18.4	View
K518 060-048	K518	48	60	20.5	View
K518 060.32-044.45	K518	44.45	60.32	19.05	View
K518 063-047	K518	47	63	20.5	View
K518 063-047/1	K518	47	63	18.4	View
K518 063-047/2	K518	47	63	19.4	View
K518 063-051	K518	51	63	20.5	View
K518 063-053	K518	53	63	12.5	View
K518 065-049	K518	49	65	20.5	View
K518 065-050	K518	50	65	18.4	View
K518 066.67-050.80	K518	50.8	66.67	19.05	View
K518 070-050	K518	50	70	22.4	View
K518 070-054	K518	54	70	20.5	View
K518 070-058	K518	58	70	20.5	View
K518 075-055	K518	55	75	22.4	View
K518 075-059	K518	59	75	20.5	View
K518 080-060	K518	60	80	22.4	View
K518 080-060/2	K518	60	80	25	View
K518 080-062	K518	62	80	22.5	View
K518 080-066	K518	66	80	22.4	View
K518 085-065	K518	65	85	22.4	View
K518 090-070	K518	70	90	22.4	View
K518 090-072/1	K518	72	90	22.5	View
K518 090-075	K518	75	90	20	View
K518 090-076	K518	76	90	22.4	View
K518 095-075	K518	75	95	22.4	View
K518 095-081	K518	81	95	22.4	View
K518 100-075	K518	75	100	22.4	View
K518 100-086	K518	86	100	22.4	View

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