UNP/UHP Rod Seal is a kind of lip seal which is used in the groove to fit the piston.The materials are imported CPU and TPU, with a hardness of 90-95Ashore and green color. UNP/UHP Rod Seal is used in hydraulic cylinders for fluid sealing and is designed to ensure that pressurized fluid does not leak across the cylinder head as the system pressure pushes the piston down the cylinder bore. Besides, The choice of piston seal is decided by the way in which the cylinder operates. For a cylinder which is exclusively single-acting, capable of sealing dynamic pressure from one side (unidirectional), it is always best to choose the type of seal designed to provide optimum sealing qualities for single-acting functions.

Standard Design			PU
special(on request			FKM

Specification	Groove size
	d		D+12	H	HA		HB	L		W
40-30-6.5	40		30	7	9		39	2		5
50-39-7.3	50		39	8	10		49	2		5.5
50-40-6.5	50		40	7	9		49	2		5
62-52-6.3	62		52	6.8	8.8		61	2		5.5
63-53-6.5	63		53	7	9		62	2		5
80-64-12	80		64	12.5	15.5		79	2		8
80-71-6.5	80		71	7	g		79	2		4.5
90-80-6.5	90		80	7	g		89	3		5
100-85-9.5	100		85	10	13		98	3		7.5
125-112-9	125		112	9.5	12.5		123	3		6.5
125-115-12	125		115	12.5	15.5		123	3		5
140-125-9.5	140		125	10	13		138	3		7.5
150-136-9	150		136	9.5	2.5		148	3		7
160-145-9	160		145	9.5	12.5		157	3		7.5
160-145-9.5	160		145	10	13		157	3		7.5
180-165-9.5	180		165	10	13		177	4		7.5
200-180-12.5	200		180	13	16		197	4		10
220-200-12.5	220		200	13	16		217	4		10
224-204-12.5	224		204	13	16		221	4		10
250-230-12.5	250		230	13	16		247	4		10

Standard and /or can fit the groove

JB/ZQ 4265

GY1

Pressure [MPa]

Temperature [℃]

Sliding speed[m/s]

Medium

Standard

40

35..+100

0.5

Hydraulic oils (mineral oil-based)

● Particularly strong wear resistance. ● Insensitivity to shock loads and pressure peaks. ● High crush resistance. ● It has an ideal sealing effect under no load and low-temperature conditions. ● Suitable for demanding working conditions. ● Easy to install.

Specification	Groove size
	d		D+12	H	HA	HB	L	W
16.2-10.5-4.4	16.2		10.5	4.9	6.9	15.7	1.5	2.85
125-105-15	125		105	16	19	123	3	10
150-130-15	150		130	16	19	148	3	10
180-155-16	180		155	17	20	177	5	12.5
190-165-16	190		165	17	20	187	5	12.5
195-170-15	195		170	16	19	192	5	12.5
200-175-16	200		175	17	20	197	5	12.5
205-180-16	205		180	17	20	202	5	12.5
212-187-16	212		187	17	20	209	5	12.5
215-190-16	215		190	17	20	212	5	12.5
224-199-16	224		199	17	20	221	5	12.5
237-212-19	237		212	20	23	234	5	12.5
250-225-19	250		225	20	23	247	5	12.5
261-236-19	261		236	20	23	257	5	12.5
265-235-19	265		235	20	23	261	5	15
275-250-19	275		250	20	23	271	5	12.5
280-255-19	280		255	20	24	276	5	12.5
295-265-19	295		265	20	24	291	6	15
300-270-19	300		270	20	24	296	6	15
310-280-19	310		280	20	24	306	6	15
314-285-19	314		285	20	24	310	6	14.5
330-300-19	330		300	20	24	326	6	15
360-330-24	360		330	25	29	256	6	15
450-410-30	450		410	31	35	446	6	20
450-420-26	450		420	27	31	446	6	15

The above specifications are not complete. Besides,  we can customize the non-standard parts for you. Please feel free to contact me if you are interested.