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Piston seals

Piston seals

Pneumatic piston seals are critical components designed to maintain airtight separation between the piston and the cylinder bore in pneumatic cylinders. Their main role is to prevent compressed air from bypassing the piston, ensuring efficient force transmission and stable cylinder operation.

Key Functions:

  • Maintain air pressure within the cylinder chambers

  • Prevent leakage between the piston and cylinder wall

  • Reduce friction and wear during reciprocating motion

  • Provide durability over high cycle rates typical of pneumatic systems

Materials and Properties:

Piston seals are commonly made from elastomers such as NBR (Nitrile Rubber), EPDM, or FKM (Viton), chosen based on the required resistance to temperature, pressure, and chemical exposure. Thermoplastic materials like PTFE are also used for their low friction and chemical inertness.

Design Features:

  • Flexible sealing lips or profiles adapted for low pressure and high-speed operation

  • Ability to withstand rapid reciprocation without loss of sealing integrity

  • Compatibility with lubricants commonly used in pneumatic systems

Pneumatic piston seals contribute significantly to the reliability, efficiency, and longevity of pneumatic actuators.

Filter
Pneumatic seals dimension
Bore Diameter D (mm)
Groove Diameter d (mm)
Width 1
Width 2
Details
Seal type
Manufacturers
Manufacturers
38
19
17
12
30
24
Photo Code Name Producer Stock
Pneumatic seal PSP 5x2,5x1,5 PU PSP 0050 0025 015 B0 Pneumatic seal PSP 5x2,5x1,5 PU Artic seals 6 weeks
Pneumatic seal 8x4,80x2,30 A807 NBR A807-008 Pneumatic seal 8x4,80x2,30 A807 NBR ALP 58
Pneumatic seal 8x4,80x2,30 A807 PU A807-008 PU Pneumatic seal 8x4,80x2,30 A807 PU ALP 100
Pneumatic seal 8x4x2,55 A807 NBR A807-008/1 Pneumatic seal 8x4x2,55 A807 NBR ALP 110
Pneumatic seal K59 8x4,8x2,3 NBR K59-008 NBR Pneumatic seal K59 8x4,8x2,3 NBR Kastas 10
Pneumatic seal PSP 8x4,8x2,3 PU PSP 0080 0048 023 B0 Pneumatic seal PSP 8x4,8x2,3 PU Artic seals 50
Pneumatic seal PSP 8x4,8x2,5 PU PSP 0080 0048 025 B0 Pneumatic seal PSP 8x4,8x2,5 PU Artic seals 6 weeks
Pneumatic seal PSP 8x4x2,5 PU PSP 0080 0040 025 B0 Pneumatic seal PSP 8x4x2,5 PU Artic seals 6 weeks
Piston seal MPC 10x3x4,2 N3 [2EMPC005] MPC 0100 0030 042 N3 Piston seal MPC 10x3x4,2 N3 [2EMPC005] Artic seals 24
Pneumatic seal 10x3x5 A805 NBR A805-010 Pneumatic seal 10x3x5 A805 NBR ALP 20
Pneumatic seal 10x6x2,55 A807 NBR A807-010 Pneumatic seal 10x6x2,55 A807 NBR ALP 16
Pneumatic seal 10x6x2,55 A807 PU A807-010 PU Pneumatic seal 10x6x2,55 A807 PU ALP 98
Pneumatic seal K57 10x3x5 K57-010 Pneumatic seal K57 10x3x5 Kastas 10
Pneumatic seal K59 10x6x2,55 NBR K59-010 NBR Pneumatic seal K59 10x6x2,55 NBR Kastas 22
Pneumatic seal PSP 10x6x2,5 PU PSP 0100 0060 025 B0 Pneumatic seal PSP 10x6x2,5 PU Artic seals 127
Pneumatic seal SPS 10x6,5x1,4 PU [2ESPS848] SPS 0100 0065 014 A0 Pneumatic seal SPS 10x6,5x1,4 PU [2ESPS848] Artic seals 57
Pneumatic seal 12x4,5x6 A805 NBR A805-012 Pneumatic seal 12x4,5x6 A805 NBR ALP 20
Pneumatic seal 12x7x2 A803 NBR A803-012 Pneumatic seal 12x7x2 A803 NBR ALP 88
Pneumatic seal 12x7x2,55 A807 NBR A807-012 Pneumatic seal 12x7x2,55 A807 NBR ALP 60
Pneumatic seal 12x7x2,55 A807 PU A807-012 PU Pneumatic seal 12x7x2,55 A807 PU ALP 90
Pneumatic seal K54 12x7x2 K54-012 Pneumatic seal K54 12x7x2 Kastas 33
Pneumatic seal K57 12x4,5x6 K57-012 Pneumatic seal K57 12x4,5x6 Kastas 15
Pneumatic seal K59 12x7x2,55 PU K59-012 PU Pneumatic seal K59 12x7x2,55 PU Kastas 15
Pneumatic seal K63 12x7,4x1,8 K63-012 Pneumatic seal K63 12x7,4x1,8 Kastas 10
Pneumatic seal PSP 12,7x8x3,2 PU PSP 0127 0080 032 B0 Pneumatic seal PSP 12,7x8x3,2 PU Artic seals 6 weeks
Pneumatic seal PSP 12x7x2,5 PU PSP 0120 0070 025 B0 Pneumatic seal PSP 12x7x2,5 PU Artic seals 6 weeks
Pneumatic seal PSP 12x9x2,1 PU PSP 0120 0090 021 B0 Pneumatic seal PSP 12x9x2,1 PU Artic seals 6 weeks
Pneumatic seal SPS 12x7x2,2 PU [2ESPS001] SPS 0120 0070 022 B0 Pneumatic seal SPS 12x7x2,2 PU [2ESPS001] Artic seals 65
Pneumatic seal PSP 13x8x2,5 PU PSP 0130 0080 025 B0 Pneumatic seal PSP 13x8x2,5 PU Artic seals 6 weeks
Pneumatic seal PSP 14x8x2,5 PU PSP 0140 0080 025 B0 Pneumatic seal PSP 14x8x2,5 PU Artic seals 99
Pneumatic seal PSP 15x9x2,5 PU PSP 0150 0090 025 B0 Pneumatic seal PSP 15x9x2,5 PU Artic seals 6 weeks
Piston seal 10MPZ 16x10x10,5 NBR 48004447 Piston seal 10MPZ 16x10x10,5 NBR OEM 28
Piston seal MPC 16x4,5x5,7 N3 [2EMPC009] MPC 0160 0450 057 N3 Piston seal MPC 16x4,5x5,7 N3 [2EMPC009] Artic seals 49
Pneumatic seal 16x10x2,55 A807 NBR A807-016 Pneumatic seal 16x10x2,55 A807 NBR ALP request
Pneumatic seal 16x10x2,55 A807 PU A807-016 PU Pneumatic seal 16x10x2,55 A807 PU ALP 148
Pneumatic seal 16x10x3 A802 PU A802-016 PU Pneumatic seal 16x10x3 A802 PU ALP 55
Pneumatic seal 16x4,5x6,5 A805 NBR A805-016 Pneumatic seal 16x4,5x6,5 A805 NBR ALP request
Pneumatic seal 16x9x2 A803 NBR A803-016 Pneumatic seal 16x9x2 A803 NBR ALP 45
Pneumatic seal K50 16x10x3 PU K50-016 PU Pneumatic seal K50 16x10x3 PU Kastas 21
Pneumatic seal K54 16x9x2,1 K54-016 Pneumatic seal K54 16x9x2,1 Kastas 13
Pneumatic seal K55 16x4,5x4,4 K55-016 Pneumatic seal K55 16x4,5x4,4 Kastas 20
Pneumatic seal K57 16x4,5x6,5 K57-016 Pneumatic seal K57 16x4,5x6,5 Kastas 10
Pneumatic seal K59 16x10x2,55 PU K59-016 PU Pneumatic seal K59 16x10x2,55 PU Kastas 10
Pneumatic seal K59-16x10x2,55 NBR K59-016 NBR Pneumatic seal K59-16x10x2,55 NBR Kastas 15
Pneumatic seal K63 16x11,4x1,8 K63-016 Pneumatic seal K63 16x11,4x1,8 Kastas 13
Pneumatic seal PSP 16x10x2,5 PU PSP 0160 0100 025 B0 Pneumatic seal PSP 16x10x2,5 PU Artic seals 6 weeks
Pneumatic seal PSP 16x11x2,5 PU PSP 0160 0110 025 B0 Pneumatic seal PSP 16x11x2,5 PU Artic seals 40
Pneumatic seal SPS 16x9x2,4 PU [2ESPS030] SPS 0160 0090 024 B0 Pneumatic seal SPS 16x9x2,4 PU [2ESPS030] Artic seals 50
Pneumatic seal PSP 17x11x2,5 PU PSP 0170 0110 025 B0 Pneumatic seal PSP 17x11x2,5 PU Artic seals 6 weeks
Pneumatic seal 18x12x2,55 A807 NBR A807-018 Pneumatic seal 18x12x2,55 A807 NBR ALP 49
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