Piston seal COP

Description

The COP profile is a polyurethane pneumatic piston seal for cylinders, designed to provide low friction and effective dynamic sealing.

Assembly

Install the COP in a clean groove, free from sharp edges or damage. Lubricate lightly before assembly, avoid twisting the profile and periodically check wear, dirt or deformation to ensure proper sealing.

Advantages

Materials

The COP is manufactured exclusively in polyurethane PU, with a standard hardness range of 85-95 Shore A for pneumatic applications.

Technical data

NO	Ød	ØD	b	B	C	Ød1
U-16103 COP	10	16	3	3.5	4	15
U-24184 COP	18	24	4	4.5	4	23
U-25193.25 COP	19	25	3.25	3.75	4	24
U-32245.5 COP	24	32	5.5	6	5	30.5
U-40307 COP	30	40	7	7.5	6	38.5
U-423010 COP	30	42	10	11	6	40.5
U-50407 COP	40	50	7	7.5	6	48.5
U-50367 COP	36	50	7	7.5	6	48.5
U-60486.5 COP	48	60	6.5	7	6	58.5
U-63537 COP	53	63	7	7.5	6	61.5
U-80688.5 COP	68	80	8.5	9.5	6	78.5
U-100888.5 COP	88	100	8.5	9.5	6	98
U-12511010 COP	110	125	10	11	6.5	123
U-1251058.25 COP	105	125	8.25	9.25	8	123
U-16014014 COP	140	160	14	15	8	158
U-1601408.25 COP	140	160	8.25	9.25	8	158
U-16014510 COP	145	160	10	11	7	158
U-18016012 COP	160	180	12	13	8	178
U-20018014 COP	180	200	14	15	8	198
U-25022616 COP	226	250	16	17	8	248
U-25023014 COP	230	250	14	15	8	248
U-32029517 COP	295	320	17	18	11	317

Technical drawing and installation parameters of the COP piston seal

This technical drawing defines the dimensions and geometric variables that are essential for the correct selection and installation of the COP piston seal, a one-piece polyurethane profile with asymmetrical sealing lips fitted in the piston groove. It shows the critical dimensions linked to the size table, such as the inside diameter (Ød), the outside diameter (ØD), the profile width (b), the housing groove width (B) and the groove bottom diameter (Ød1), together with the housing dimension (C, shown as n on the drawing) and the 20° lead-in chamfer. The groove edges must be rounded and free from burrs. Complying with these dimensions ensures accurate positioning, installation without twisting the profile and stable sealing performance in diameters from 6 to 2000 mm.

Three-dimensional view and components of the COP piston seal

This 3D illustration shows the basic structure of the COP piston seal. As it is a one-piece profile, you will see a single sealing element made of polyurethane with a standard hardness of 85 to 95 Shore A, in which the asymmetrical sealing lips stand out. That asymmetry is what combines effective contact against the cylinder bore with reduced friction, helping the piston move smoothly and respond quickly to pressurised air. The polyurethane provides good wear resistance, and the absence of auxiliary parts simplifies installation in small fitting grooves.

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