The AirTAC Airtac SC40 Standard Cylinder SC40X620 is a genuine double-acting standard air cylinder with a Ø40mm bore and 620mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X620 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, pairing a 40 mm bore with a 620 mm stroke. It generates a push force of 628 N at 0.5 MPa and up to 1130 N at the maximum operating pressure of 0.9 MPa, driven by a 16 mm diameter piston rod.
This model includes PT1/4 port threads and an M12x1.25 rod thread for standard mounting. The cylinder body length A is 142 mm, giving a total extended length of approximately 762 mm. Adjustable air cushioning at both ends, with a 21 mm cushion length, decelerates the piston smoothly to protect end caps during high-speed operation.
| Model | Airtac SC40 Standard Cylinder SC40X620 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 620 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×620 | 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 620 mm stroke and 628 N push force at 0.5 MPa reliably actuates diverter gates on medium-width conveyor lines, directing packages or parts between lanes.
Provides the reach and force needed for long-travel clamping in woodworking or light metal fabrication jigs, securely holding workpieces during machining or assembly.
Powers the tilt mechanism on small to medium bin tippers, using its 620 mm stroke to achieve the necessary dump angle for emptying containers of granular or loose materials.
For applications requiring more force, stepping up to the 50 mm bore SC50 series provides 982 N of push force at 0.5 MPa. If a shorter, more compact cylinder is acceptable, the 32 mm bore SC32 offers 402 N at the same pressure. Always match the bore, 620 mm stroke, PT1/4 port thread, and basic mounting when replacing an existing SC40 cylinder.
At this 620 mm stroke length, the 16 mm rod is susceptible to bending under side loads. An external linear guide or a guided cylinder configuration is strongly recommended to prevent rod bearing damage and ensure consistent, reliable actuation over the full stroke.
Quick checklist
At the standard operating pressure of 0.5 MPa, the push force is 628 N and the pull force is 528 N. The maximum push force at 0.9 MPa is 1130 N. These values are based on the 40 mm bore and 16 mm rod diameter.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder. It is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC40 tie-rod cylinder with the same 620 mm stroke, PT1/4 ports, and basic mounting configuration.
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