The AirTAC Airtac SC50 Standard Cylinder SC50X650 is a genuine double-acting standard air cylinder with a Ø50mm bore and 650mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X650 is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa). Its 650 mm stroke suits medium-reach material transfer and clamping operations where a compact tie-rod body is preferred.
This model uses a 20 mm diameter piston rod with M16x1.5 male threads and a 21 mm adjustable air cushion at each end. The body length A is 150 mm, giving an extended length of approximately 800 mm. Ports are PT1/4, and the standard TPU seals provide an operating range of -20 to +70 °C.
| Model | Airtac SC50 Standard Cylinder SC50X650 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 650 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. |
| ×650 | 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 650 mm stroke moves components between conveyor lanes or workstations, providing 982 N of push force for reliable part shuttling.
Applies consistent clamping pressure in woodworking or welding jigs, with adjustable cushioning to reduce impact at the end of the 650 mm travel.
Delivers a controlled linear push for press-fit or alignment operations in automated assembly cells, operating on standard filtered plant air.
For higher force, the 63 mm bore SC63 series steps up to 1559 N at 0.5 MPa; for a lighter, more compact solution the 40 mm bore provides 628 N. At 650 mm stroke, the rod is long relative to its 20 mm diameter—avoid unguided side loads that can bend the rod or score the bearing. Use an external guide rail or a guided cylinder for off-axis loads.
When replacing an existing cylinder, match five points: 50 mm bore, 650 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and the absence of a magnet. This ensures dimensional and performance interchangeability with another AirTAC SC50 tie-rod unit.
Quick checklist
At 0.5 MPa the cylinder pushes with 982 N and pulls with 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
Only if the load is purely axial and well-aligned. A 20 mm rod extended to 650 mm is vulnerable to bending under side load. For any off-axis force, add an external linear guide or switch to a guided cylinder to protect the rod bearing and seals.
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