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Piston U-cup seal, K40, PU / POM, Kastas
Code: KAT_KASK40_000100
Fast delivery
Optimized Inventory
Guaranteed quality
We cooperate with renowned
manufacturers all over the world
Technical support available
We cooperate with manufacturers' engineers to solve technical problems
Typ: Piston U-cup seal 14 x 8 x 6 K40-014 PU/POM, Kastas
Stock
(18 pcs)
| KAT_KASK40_000100
Delivery to:
04/11/2026
€2,21
€1,83
excl. VAT
Typ: Piston U-cup seal 36 x 27 x 6 K40-036 PU/POM, Kastas
Stock
(34 pcs)
| KAT_KASK40_000200
Delivery to:
04/11/2026
€3,29
€2,72
excl. VAT
Typ: Piston U-cup seal 40 x 25 x 11 K40-040 PU/POM, Kastas
Stock
(18 pcs)
| KAT_KASK40_000300
Delivery to:
04/11/2026
€3,37
€2,79
excl. VAT
Typ: Piston U-cup seal 45 x 30 x 9.5 K40-045/1 PU/POM, Kastas
Stock
(5 pcs)
| KAT_KASK40_000400
Delivery to:
04/11/2026
€3,69
€3,05
excl. VAT
Typ: Piston U-cup seal 45 x 30 x 11 K40-045 PU/POM, Kastas
Stock
(1 pcs)
| KAT_KASK40_000500
Delivery to:
04/11/2026
€3,69
€3,05
excl. VAT
Typ: Piston U-cup seal 50 x 30 x 12 K40-050/2 PU/POM, Kastas
Not on stock
| KAT_KASK40_000600
€4,49
€3,71
excl. VAT
Typ: Piston U-cup seal 50 x 35 x 9.5 K40-050/1 PU/POM, Kastas
Stock
(9 pcs)
| KAT_KASK40_000700
Delivery to:
04/11/2026
€3,97
€3,28
excl. VAT
Typ: Piston U-cup seal 50 x 35 x 11 K40-050 PU/POM, Kastas
Stock
(3 pcs)
| KAT_KASK40_000800
Delivery to:
04/11/2026
€4,01
€3,31
excl. VAT
Typ: Piston U-cup seal 55 x 40 x 9.5 K40-055/1 PU/POM, Kastas
Stock
(23 pcs)
| KAT_KASK40_000900
Delivery to:
04/11/2026
€4,05
€3,35
excl. VAT
Typ: Piston U-cup seal 55 x 40 x 11 K40-055 PU/POM, Kastas
Stock
(10 pcs)
| KAT_KASK40_001000
Delivery to:
04/11/2026
€4,13
€3,41
excl. VAT
Typ: Piston U-cup seal 60 x 45 x 9.5 K40-060/1 PU/POM, Kastas
Not on stock
| KAT_KASK40_001100
€4,49
€3,71
excl. VAT
Typ: Piston U-cup seal 60 x 45 x 11 K40-060 PU/POM, Kastas
Not on stock
| KAT_KASK40_001200
€4,57
€3,78
excl. VAT
Typ: Piston U-cup seal 63 x 48 x 9.5 K40-063/2 PU/POM, Kastas
Stock
(14 pcs)
| KAT_KASK40_001300
Delivery to:
04/11/2026
€4,49
€3,71
excl. VAT
Typ: Piston U-cup seal 63 x 48 x 10 K40-063 PU/POM, Kastas
Stock
(6 pcs)
| KAT_KASK40_001400
Delivery to:
04/11/2026
€4,49
€3,71
excl. VAT
Typ: Piston U-cup seal 63 x 50 x 10 K40-063/1 PU/POM, Kastas
Stock
(4 pcs)
| KAT_KASK40_001500
Delivery to:
04/11/2026
€4,57
€3,78
excl. VAT
Typ: Piston U-cup seal 63.5 x 50.8 x 10.49 K40-063/3 PU/POM, Kastas
Not on stock
| KAT_KASK40_001600
€4,57
€3,78
excl. VAT
Typ: Piston U-cup seal 65 x 45 x 13 K40-065/1 PU/POM, Kastas
Not on stock
| KAT_KASK40_001700
€4,90
€4,05
excl. VAT
Typ: Piston U-cup seal 65 x 50 x 11 K40-065 PU/POM, Kastas
Stock
(5 pcs)
| KAT_KASK40_001800
Delivery to:
04/11/2026
€4,61
€3,81
excl. VAT
Typ: Piston U-cup seal 70 x 50 x 13 K40-070 PU/POM, Kastas
Stock
(8 pcs)
| KAT_KASK40_001900
Delivery to:
04/11/2026
€4,90
€4,05
excl. VAT
Typ: Piston U-cup seal 70 x 50 x 16.5 K40-070/3 PU/POM, Kastas
Stock
(12 pcs)
| KAT_KASK40_002000
Delivery to:
04/11/2026
€5,13
€4,24
excl. VAT
Typ: Piston U-cup seal 70 x 55 x 10 K40-070/2 PU/POM, Kastas
Stock
(16 pcs)
| KAT_KASK40_002100
Delivery to:
04/11/2026
€4,81
€3,98
excl. VAT
Typ: Piston U-cup seal 75 x 55 x 13 K40-075 PU/POM, Kastas
Stock
(14 pcs)
| KAT_KASK40_002200
Delivery to:
04/11/2026
€4,93
€4,07
excl. VAT
Typ: Piston U-cup seal 80 x 60 x 12.5 K40-080/1 PU/POM, Kastas
Not on stock
| KAT_KASK40_002300
€5,30
€4,38
excl. VAT
Typ: Piston U-cup seal 80 x 60 x 13 K40-080 PU/POM, Kastas
Stock
(24 pcs)
| KAT_KASK40_002400
Delivery to:
04/11/2026
€5,30
€4,38
excl. VAT
Typ: Piston U-cup seal 85 x 70 x 9.3 K40-085 PU/POM, Kastas
Stock
(12 pcs)
| KAT_KASK40_002500
Delivery to:
04/11/2026
€5,30
€4,38
excl. VAT
Typ: Piston U-cup seal 90 x 70 x 13 K40-090 PU/POM, Kastas
Stock
(2 pcs)
| KAT_KASK40_002600
Delivery to:
04/11/2026
€5,62
€4,64
excl. VAT
Typ: Piston U-cup seal 100 x 80 x 13 K40-100 PU/POM, Kastas
Not on stock
| KAT_KASK40_002700
€6,10
€5,04
excl. VAT
Typ: Piston U-cup seal 100 x 88 x 8.5 K40-100/1 PU/POM, Kastas
Not on stock
| KAT_KASK40_002800
€6,78
€5,60
excl. VAT
Typ: Piston U-cup seal 110 x 90 x 13 K40-110 PU/POM, Kastas
Stock
(4 pcs)
| KAT_KASK40_002900
Delivery to:
04/11/2026
€6,78
€5,60
excl. VAT
Typ: Piston U-cup seal 120 x 100 x 13 K40-120 PU/POM, Kastas
Not on stock
| KAT_KASK40_003000
€8,18
€6,76
excl. VAT
Typ: Piston U-cup seal 125 x 100 x 16.2 K40-125 PU/POM, Kastas
Stock
(4 pcs)
| KAT_KASK40_003100
Delivery to:
04/11/2026
€9,59
€7,93
excl. VAT
Typ: Piston U-cup seal 140 x 115 x 15 K40-140 PU/POM, Kastas
Stock
(2 pcs)
| KAT_KASK40_003200
Delivery to:
04/11/2026
€11,15
€9,21
excl. VAT
Typ: Piston U-cup seal 140 x 120 x 12.5 K40-140/1 PU/POM, Kastas
Not on stock
| KAT_KASK40_003300
€11,15
€9,21
excl. VAT
Typ: Piston U-cup seal 150 x 120 x 19 K40-150 PU/POM, Kastas
Stock
(7 pcs)
| KAT_KASK40_003400
Delivery to:
04/11/2026
€12,72
€10,51
excl. VAT
Typ: Piston U-cup seal 170 x 150 x 12.5 K40-170 PU/POM, Kastas
Stock
(2 pcs)
| KAT_KASK40_003500
Delivery to:
04/11/2026
€13,12
€10,84
excl. VAT
Typ: Piston U-cup seal 180 x 150 x 19 K40-180 PU/POM, Kastas
Stock
(4 pcs)
| KAT_KASK40_003600
Delivery to:
04/11/2026
€15,12
€12,50
excl. VAT
Typ: Piston U-cup seal 220 x 190 x 17 K40-220 PU/POM, Kastas
Stock
(4 pcs)
| KAT_KASK40_003700
Delivery to:
04/11/2026
€15,65
€12,93
excl. VAT
Typ: Piston U-cup seal 240 x 210 x 17 K40-240 PU/POM, Kastas
Not on stock
| KAT_KASK40_003800
€20,94
€17,31
excl. VAT
Product detailed description
The single-acting K40 piston U-cup seal consists of a polyurethane ring that prevents hydrodynamic pressure build-up thanks to its notched design, and a thermoplastic POM back-up ring.
Advantages
- Good dynamic and static sealing
- Relief grooves against dynamic pressure
- Long service life
- High extrusion resistance
- Thin oil film and very good locking
Applications
- Heavy-duty cylinders
- Mobile machinery
- Cylinders in scrapyards and metalworking
- Long-stroke cylinders
Also searched as: piston seal, piston U-cup, hydraulic seal, hydraulic cylinder seal, PU, polyurethane, POM, polyacetal, Kastas, K40, Kastas K40.
Additional parameters
| Category: | Piston seal |
|---|---|
| Úroveň kvality: | výkon |
| Vnitřní průměr: | 210mm |
| Vnější průměr: | 240mm |
| Výška: | 17mm |
