
The AirTAC SC50 Standard Cylinder SC50X550SH 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 SC50X550SH is a double-acting pneumatic cylinder with a 50 mm bore and a non-standard 550 mm stroke, built for hot-duty linear actuation. Its Viton (FKM) seals shift the operating temperature window to 0–150 °C, making it suitable for autoclaves, drying ovens, and foundry equipment where standard TPU seals would degrade.
At the industry-standard 0.5 MPa supply, this cylinder delivers 982 N pushing and 825 N pulling, while at the maximum operating pressure of 0.9 MPa it generates 1767 N of push thrust. The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end help manage end-of-stroke deceleration, and the built-in magnet (suffix S) lets you clamp CMSG/DMSG/EMSG sensors directly onto the tie-rod barrel for rod-position feedback.
| Model | Airtac SC50 Standard Cylinder SC50X550SH |
|---|---|
| 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.
Viton seals allow continuous operation at up to 150 °C, making this cylinder ideal for autoclave door actuation, drying-chamber pushers, and hot-melt glue stations where standard seals would fail.
The 550 mm stroke moves pallets or trays across wide conveyor gaps. The built-in magnet supports end-of-stroke and mid-position sensing with CMSG/DMSG sensors for reliable automation handshakes.
Rated for 1767 N of push force at 0.9 MPa, the SC50X550SH handles heavy mould-clamping and glass-pressing tasks in hot environments, with adjustable cushioning to protect tooling at each cycle end.
This 50 mm bore sits between the 40 mm (628 N push at 0.5 MPa) and the 63 mm (1559 N push at 0.5 MPa). If your load is below 800 N, stepping down to a 40 mm bore saves air and space; if you need more than 1400 N of continuous force, move up to a 63 mm bore. Because the stroke is 550 mm, side-load and rod-bearing bending must be considered — for unsupported or off-axis loads, add an external linear guide or switch to a guided-cylinder configuration.
For a direct replacement, match five points: 50 mm bore, 550 mm stroke, PT port thread, Viton (H) seal material, and the built-in magnet (-S). The SC is a tie-rod cylinder and is shorter than an ISO 15552 profile, so only another AirTAC SC50 with the same suffix will fit the existing mounting footprint and sensor setup.
Quick checklist
At 0.5 MPa the cylinder produces 982 N extending and 825 N retracting. At 0.7 MPa it delivers 1374 N push force, and at the maximum operating pressure of 0.9 MPa it reaches 1767 N push. The theoretical maximum at 1.0 MPa is 200 kgf (≈1961 N), but the recommended operating range is 0.15–1.0 MPa.
No — the SC50X550SH is a double-acting cylinder and will drift or drop if supply pressure is exhausted or the directional valve is centred. If the application requires position holding without live pressure, you must add an external rod lock, a pilot-operated check valve, or a mechanical brake.
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