
The AirTAC SC50 Standard Cylinder SC50X55 is a genuine double-acting standard air cylinder with a Ø50mm bore and 55mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X55 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a push force of 982 N at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa. Its 55 mm stroke and 20 mm diameter piston rod suit short linear actuation tasks where space is limited but robust force is required.
This model features a 150 mm body length, PT1/4 ports, and an M16x1.5 rod thread. The built-in adjustable air cushion on both ends decelerates the piston smoothly over a 21 mm cushion length, reducing end-of-stroke impact and noise without the need for external shock absorbers.
| Model | Airtac SC50 Standard Cylinder SC50X55 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×55 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The 55 mm stroke and 20 mm rod provide a compact, rigid stop for pallets or boxes on conveyors, with 982 N of force at standard line pressure to hold position firmly.
Ideal for short-stroke clamping in machining or welding jigs, where the adjustable cushion ensures quiet, vibration-free operation during high-cycle clamping sequences.
Delivers up to 1767 N at 0.9 MPa for light pressing, staking, or component insertion tasks in benchtop assembly cells, fitting easily into compact machine frames.
For applications needing slightly less force, the 40 mm bore SC40 series provides 628 N push at 0.5 MPa. If your load demands higher thrust, stepping up to the 63 mm bore SC63 delivers 1559 N at the same pressure. Always match the bore, 55 mm stroke, PT1/4 port thread, basic mounting, and the absence of a magnet when replacing an existing SC50X55.
At a 55 mm stroke, the rod is well-supported within the bearing and standard side-load limits apply. For applications with significant lateral forces, consider an external guide rail or a guided cylinder variant to protect the rod bearing from premature wear.
Quick checklist
At 0.5 MPa (5 bar) operating pressure, the SC50X55 produces 982 N of push force on the piston and 825 N of pull force on the retract stroke. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N.
Yes, provided the original is an AirTAC SC tie-rod cylinder with a 50 mm bore, 55 mm stroke, PT1/4 ports, basic mounting (no brackets), and no built-in magnet. This is not an ISO 15552 cylinder, so dimensional interchangeability with other brands is not guaranteed.
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