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Double-acting piston seal, K518 / K518X, NBR / TPE / POM, Kastas
Code: KAT_KASK518_000100
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manufacturers all over the world
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Typ: Piston seal 25 x 16 x 13.5/2.1 K518 025-016 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000100
€4,09
€3,38
excl. VAT
Typ: Piston seal 30 x 21 x 13.5/2.1 K518 030-021 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000200
€4,27
€3,53
excl. VAT
Typ: Piston seal 32 x 22 x 16.4/6.35 K518 032-022 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000300
€4,34
€3,59
excl. VAT
Typ: Piston seal 32 x 24 x 15.5/3.1 K518 032-024 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000400
€4,30
€3,55
excl. VAT
Typ: Piston seal 35 x 25 x 16.4/6.35 K518 035-025 NBR / TPE / POM, Kastas
Stock
(10 pcs)
| KAT_KASK518_000500
Delivery to:
04/11/2026
€4,59
€3,79
excl. VAT
Typ: Piston seal 40 x 24 x 18.4/6.35 K518X 040-024 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000600
€4,99
€4,12
excl. VAT
Typ: Piston seal 40 x 30 x 12.5/4 K518 040-030/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000700
€4,81
€3,98
excl. VAT
Typ: Piston seal 40 x 30 x 16.4/6.35 K518X 040-030 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000800
€4,95
€4,09
excl. VAT
Typ: Piston seal 40 x 32 x 10/4 K518 040-032/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_000900
€4,81
€3,98
excl. VAT
Typ: Piston seal 40 x 32 x 15.5/3.2 K518 040-032 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001000
€4,81
€3,98
excl. VAT
Typ: Piston seal 44.45 x 28.57 x 19.05/6.35 K518 044, 45-028, 57 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001100
€5,49
€4,54
excl. VAT
Typ: Piston seal 45 x 29 x 18.4/6.35 K518 045-029 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001200
€5,56
€4,60
excl. VAT
Typ: Piston seal 45 x 35 x 16.4/6.35 K518X 045-035 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001300
€5,20
€4,30
excl. VAT
Typ: Piston seal 50 x 34 x 18.4/6.35 K518X 050-034/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001400
€5,42
€4,48
excl. VAT
Typ: Piston seal 50 x 34 x 20.5/3.1 K518X 050-034 NBR / TPE / POM, Kastas
Stock
(19 pcs)
| KAT_KASK518_001500
Delivery to:
04/11/2026
€5,42
€4,48
excl. VAT
Typ: Piston seal 50 x 38 x 20.5/4.2 K518 050-038 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001600
€5,42
€4,48
excl. VAT
Typ: Piston seal 50.8 x 34.92 x 19.05/6.35 K518 050, 8-034, 92 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001700
€5,49
€4,54
excl. VAT
Typ: Piston seal 55 x 39 x 18.4/6.35 K518X 055-039/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001800
€5,81
€4,80
excl. VAT
Typ: Piston seal 55 x 39 x 20.5/3.1 K518X 055-039 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_001900
€5,81
€4,80
excl. VAT
Typ: Piston seal 55 x 45 x 12.5/4 K518 055-045 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002000
€6,17
€5,10
excl. VAT
Typ: Piston seal 60 x 44 x 18.4/6.35 K518X 060-044/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002100
€6,46
€5,34
excl. VAT
Typ: Piston seal 60 x 44 x 20.5/3.1 K518X 060-044 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002200
€6,46
€5,34
excl. VAT
Typ: Piston seal 60 x 48 x 20.5/4.2 K518 060-048 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002300
€6,46
€5,34
excl. VAT
Typ: Piston seal 60.32 x 44.45 x 19.05/6.35 K518 060, 32-044, 45 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002400
€6,42
€5,31
excl. VAT
Typ: Piston seal 63 x 47 x 18.4/6.35 K518X 063-047/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002500
€6,57
€5,43
excl. VAT
Typ: Piston seal 63 x 47 x 19.4/6.35 K518 063-047/2 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002600
€6,57
€5,43
excl. VAT
Typ: Piston seal 63 x 47 x 20.5/3.1 K518X 063-047 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002700
€6,57
€5,43
excl. VAT
Typ: Piston seal 63 x 51 x 20.5/4.2 K518 063-051 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002800
€6,57
€5,43
excl. VAT
Typ: Piston seal 63 x 53 x 12.5/4 K518 063-053 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_002900
€6,60
€5,45
excl. VAT
Typ: Piston seal 65 x 49 x 20.5/3.1 K518X 065-049 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003000
€6,82
€5,64
excl. VAT
Typ: Piston seal 65 x 50 x 18.4/6.35 K518X 065-050 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003100
€6,82
€5,64
excl. VAT
Typ: Piston seal 66.67 x 50.8 x 19.05/6.35 K518 066, 67-050, 80 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003200
€6,85
€5,66
excl. VAT
Typ: Piston seal 70 x 50 x 22.4/6.35 K518X 070-050 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003300
€6,92
€5,72
excl. VAT
Typ: Piston seal 70 x 54 x 20.5/3.1 K518X 070-054 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003400
€6,92
€5,72
excl. VAT
Typ: Piston seal 70 x 58 x 20.5/4.2 K518 070-058 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003500
€6,92
€5,72
excl. VAT
Typ: Piston seal 75 x 55 x 22.4/6.35 K518X 075-055 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003600
€7,17
€5,93
excl. VAT
Typ: Piston seal 75 x 59 x 20.5/3.1 K518 075-059 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003700
€7,17
€5,93
excl. VAT
Typ: Piston seal 80 x 60 x 22.4/6.35 K518X 080-060 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_003800
€8,29
€6,85
excl. VAT
Typ: Piston seal 80 x 60 x 25/6.35 K518 080-060/2 NBR / TPE / POM, Kastas
Stock
(6 pcs)
| KAT_KASK518_003900
Delivery to:
04/11/2026
€8,36
€6,91
excl. VAT
Typ: Piston seal 80 x 62 x 22.5/3.6 K518X 080-062 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004000
€8,29
€6,85
excl. VAT
Typ: Piston seal 80 x 66 x 22.4/5.2 K518 080-066 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004100
€8,29
€6,85
excl. VAT
Typ: Piston seal 85 x 65 x 22.4/6.35 K518 085-065 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004200
€8,64
€7,14
excl. VAT
Typ: Piston seal 90 x 70 x 22.4/6.35 K518X 090-070 NBR / TPE / POM, Kastas
Stock
(5 pcs)
| KAT_KASK518_004300
Delivery to:
04/11/2026
€9,18
€7,59
excl. VAT
Typ: Piston seal 90 x 72 x 22.5/3.6 K518 090-072/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004400
€9,15
€7,56
excl. VAT
Typ: Piston seal 90 x 75 x 20/5 K518 090-075 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004500
€9,54
€7,88
excl. VAT
Typ: Piston seal 90 x 76 x 22.4/5.2 K518 090-076 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004600
€9,51
€7,86
excl. VAT
Typ: Piston seal 95 x 75 x 22.4/6.35 K518X 095-075 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004700
€9,51
€7,86
excl. VAT
Typ: Piston seal 95 x 81 x 22.4/5.2 K518 095-081 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_004800
€9,54
€7,88
excl. VAT
Typ: Piston seal 100 x 75 x 22.4/6.35 K518X 100-075 NBR / TPE / POM, Kastas
Stock
(1 pcs)
| KAT_KASK518_004900
Delivery to:
04/11/2026
€10,40
€8,60
excl. VAT
Typ: Piston seal 100 x 86 x 22.4/5.2 K518 100-086 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005000
€10,36
€8,56
excl. VAT
Typ: Piston seal 105 x 80 x 22.4/6.35 K518 105-080/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005100
€10,65
€8,80
excl. VAT
Typ: Piston seal 105 x 80 x 22.4/6.5 K518 105-080 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005200
€10,65
€8,80
excl. VAT
Typ: Piston seal 110 x 85 x 22.4/6.35 K518X 110-085 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005300
€10,90
€9,01
excl. VAT
Typ: Piston seal 110 x 85 x 25.4/6.35 K518 110-085/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005400
€10,94
€9,04
excl. VAT
Typ: Piston seal 110 x 92 x 22.5/3.6 K518 110-092 NBR / TPE / POM, Kastas
Stock
(8 pcs)
| KAT_KASK518_005500
Delivery to:
04/11/2026
€10,90
€9,01
excl. VAT
Typ: Piston seal 110 x 96 x 22.4/5.2 K518 110-096 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005600
€10,90
€9,01
excl. VAT
Typ: Piston seal 115 x 90 x 22.4/6.35 K518X 115-090 NBR / TPE / POM, Kastas
Stock
(6 pcs)
| KAT_KASK518_005700
Delivery to:
04/11/2026
€10,90
€9,01
excl. VAT
Typ: Piston seal 115 x 101 x 22.4/5.2 K518 115-101 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005800
€10,90
€9,01
excl. VAT
Typ: Piston seal 120 x 95 x 22.4/6.35 K518X 120-095 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_005900
€11,66
€9,64
excl. VAT
Typ: Piston seal 120 x 106 x 22.4/5.2 K518 120-106 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006000
€11,59
€9,58
excl. VAT
Typ: Piston seal 125 x 100 x 25.4/6.35 K518X 125-100 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006100
€11,80
€9,75
excl. VAT
Typ: Piston seal 125 x 108 x 26.5/7.2 K518 125-108 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006200
€11,73
€9,69
excl. VAT
Typ: Piston seal 130 x 105 x 25.4/6.35 K518 130-105 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006300
€13,24
€10,94
excl. VAT
Typ: Piston seal 130 x 105 x 25.4/9.52 K518 130-105/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006400
€13,24
€10,94
excl. VAT
Typ: Piston seal 130 x 105 x 25.4/9.52 K518X 130-105/2 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006500
€13,24
€10,94
excl. VAT
Typ: Piston seal 135 x 110 x 25.4/6.35 K518 135-110/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006600
€14,10
€11,65
excl. VAT
Typ: Piston seal 135 x 110 x 25.4/9.52 K518 135-110 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006700
€14,10
€11,65
excl. VAT
Typ: Piston seal 140 x 115 x 25.4/6.35 K518 140-115 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006800
€13,63
€11,26
excl. VAT
Typ: Piston seal 140 x 115 x 25.4/6.35 K518X 140-115/2 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_006900
€13,63
€11,26
excl. VAT
Typ: Piston seal 140 x 115 x 25.4/9.52 K518 140-115/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007000
€13,63
€11,26
excl. VAT
Typ: Piston seal 140 x 118 x 26.5/5.1 K518X 140-118 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007100
€13,63
€11,26
excl. VAT
Typ: Piston seal 140 x 123 x 26.5/7.2 K518 140-123 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007200
€13,63
€11,26
excl. VAT
Typ: Piston seal 150 x 125 x 25.4/9.5 K518 150-125 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007300
€16,07
€13,28
excl. VAT
Typ: Piston seal 150 x 128 x 26.5/5.1 K518X 150-128 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007400
€17,11
€14,14
excl. VAT
Typ: Piston seal 150 x 133 x 26.5/7.2 K518 150-133 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007500
€17,11
€14,14
excl. VAT
Typ: Piston seal 155 x 130 x 25.4/9.52 K518 155-130/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007600
€17,50
€14,46
excl. VAT
Typ: Piston seal 160 x 130 x 25.4/6.35 K518X 160-130 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007700
€17,83
€14,74
excl. VAT
Typ: Piston seal 160 x 130 x 25.4/9.52 K518 160-130/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007800
€17,83
€14,74
excl. VAT
Typ: Piston seal 160 x 135 x 25.4/9.52 K518 160-135 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_007900
€17,29
€14,29
excl. VAT
Typ: Piston seal 160 x 143 x 26.5/7.2 K518 160-143 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008000
€17,32
€14,31
excl. VAT
Typ: Piston seal 165 x 140 x 25.4/9.52 K518 165-140 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008100
€17,97
€14,85
excl. VAT
Typ: Piston seal 165 x 143 x 26.5/5.25 K518X 165-143 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008200
€17,97
€14,85
excl. VAT
Typ: Piston seal 170 x 145 x 25.4/12.7 K518 170-145 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008300
€18,54
€15,32
excl. VAT
Typ: Piston seal 170 x 148 x 26.5/5.1 K518 170-148 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008400
€18,54
€15,32
excl. VAT
Typ: Piston seal 180 x 150 x 35.4/6.35 K518 180-150 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008500
€21,23
€17,55
excl. VAT
Typ: Piston seal 180 x 155 x 25.4/12.7 K518X 180-155 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008600
€19,76
€16,33
excl. VAT
Typ: Piston seal 180 x 158 x 26.5/5.1 K518X 180-158 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008700
€19,76
€16,33
excl. VAT
Typ: Piston seal 180 x 163 x 26.5/7.2 K518 180-163 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008800
€19,76
€16,33
excl. VAT
Typ: Piston seal 190 x 165 x 25.4/12.7 K518X 190-165 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_008900
€22,24
€18,38
excl. VAT
Typ: Piston seal 200 x 170 x 35.4/6.35 K518 200-170 NBR / TPE / POM, Kastas
Stock
(3 pcs)
| KAT_KASK518_009000
Delivery to:
04/11/2026
€24,75
€20,45
excl. VAT
Typ: Piston seal 200 x 175 x 25.4/12.7 K518 200-175/1 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009100
€24,75
€20,45
excl. VAT
Typ: Piston seal 200 x 175 x 31.5/6.6 K518X 200-175 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009200
€23,05
€19,05
excl. VAT
Typ: Piston seal 200 x 180 x 31.5/9.2 K518 200-180 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009300
€24,71
€20,42
excl. VAT
Typ: Piston seal 210 x 185 x 25.4/12.7 K518X 210-185 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009400
€25,93
€21,43
excl. VAT
Typ: Piston seal 220 x 195 x 25.4/12.7 K518X 220-195 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009500
€26,93
€22,26
excl. VAT
Typ: Piston seal 220 x 200 x 31.5/9.2 K518 220-200 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009600
€27,18
€22,46
excl. VAT
Typ: Piston seal 230 x 205 x 25.4/12.7 K518X 230-205 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009700
€29,63
€24,49
excl. VAT
Typ: Piston seal 240 x 215 x 25.4/12.7 K518 240-215 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009800
€30,88
€25,52
excl. VAT
Typ: Piston seal 250 x 225 x 25.4/12.7 K518X 250-225 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_009900
€33,35
€27,56
excl. VAT
Typ: Piston seal 250 x 230 x 31.5/9.2 K518 250-230 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_010000
€34,57
€28,57
excl. VAT
Typ: Piston seal 260 x 235 x 35.4/12.7 K518 260-235 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_010100
€68,11
€56,29
excl. VAT
Typ: Piston seal 300 x 275 x 31.5/6.6 K518 300-275 NBR / TPE / POM, Kastas
Not on stock
| KAT_KASK518_010200
€78,54
€64,91
excl. VAT
Product detailed description
The double-acting K518 piston seal consists of one NBR profile ring, two thermoplastic elastomer back-up rings and two glass-reinforced POM guide rings. K518 is widely preferred in mobile machinery, where the glass-reinforced POM guide rings provide better load-bearing properties in longer-stroke cylinders.
Advantages
- Excellent sealing performance and low friction thanks to the special design
- Excellent load capacity thanks to the special reinforced guide ring material
- No additional guide ring required in low and medium-load applications thanks to the compact design
- Simple groove in a one-piece piston
- Long service life and easy installation
Applications
- Agricultural machinery
- Construction machinery
- Mobile machinery
- Loading platforms
- Forklift trucks
The double-acting K518X piston seal is a high-performance complete piston seal consisting of one NBR profile ring, two thermoplastic elastomer support rings and two glass-reinforced PA guide rings. Among similar double-acting piston seals, K518X introduces a new design of TPE back-up rings with special geometry that increases extrusion resistance under the variable pressures of mobile hydraulic applications, and glass-fibre-reinforced PA guide rings that provide higher load capacity at elevated temperatures.
Advantages
- Maximum extrusion resistance thanks to special TPE back-up rings
- Better resistance to high temperatures thanks to PA guide rings
- Advanced performance in long-stroke cylinders
Applications
- Agricultural machinery
- Construction machinery
- Mobile machinery
- Loading platforms
- Forklift trucks
Also searched as: piston seal, piston U-cup, hydraulic seal, hydraulic cylinder seal, NBR, nitrile, POM, polyacetal, TPE, Kastas, K518, Kastas K518, K518X, Kastas K518X.
Additional parameters
| Category: | Piston seal |
|---|---|
| Úroveň kvality: | výkon |
| Vnitřní průměr: | 275mm |
| Vnější průměr: | 300mm |
| Výška: | 31,5mm |
