The AirTAC SC50 Standard Cylinder SC50X550S is a genuine double-acting standard air cylinder with a Ø50mm bore and 550mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X550S delivers 982 N of push force at 0.5 MPa, placing it in the mid-range thrust class for general automation. With a 20 mm diameter piston rod and a 550 mm stroke, this non-standard length is ideal for longer transfer or lift motions that exceed the common 500 mm standard stroke limit.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the barrel for reliable end-of-stroke detection. The adjustable pneumatic cushion (21 mm length) decelerates the piston smoothly, and the PT1/4 port threads connect easily to standard pneumatic fittings.
| Model | Airtac SC50 Standard Cylinder SC50X550S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 550 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. |
| ×550 | 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 550 mm stroke pushes components between distant conveyor lanes or workstations, with the built-in magnet confirming full extension and retraction at each cycle.
Actuates a material diverter chute or safety gate with 1767 N of force at 0.9 MPa, while CMSG sensors verify the gate position for interlock logic.
Provides the extended reach needed to push a full layer of boxes onto a pallet stacker infeed, with adjustable cushioning softening the end-of-stroke impact.
Step up to a 63 mm bore if you need over 1559 N at 0.5 MPa; step down to a 40 mm bore for a more compact 628 N solution. At 550 mm stroke, the unsupported rod is extended significantly—consider an external linear guide or a guided cylinder if the load applies any side force, as long strokes increase the bending moment on the rod bearing.
For direct replacement, match five points: 50 mm bore, 550 mm stroke, PT port thread, basic mount (no accessory brackets), and the -S magnet for sensor compatibility. This is a tie-rod cylinder and will not drop into ISO 15552 mounting footprints.
Quick checklist
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No. The SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 cylinder. A direct replacement must match the AirTAC SC family dimensions, 50 mm bore, 550 mm stroke, PT ports, and the -S magnet option.
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