The AirTAC Airtac SC40 Standard Cylinder SC40X45 is a genuine double-acting standard air cylinder with a Ø40mm bore and 45mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X45 is a compact-stroke pneumatic workhorse delivering 628 N of push force at a standard 0.5 MPa supply. Its 16 mm diameter piston rod and 21 mm air cushion at each end provide smooth deceleration in a short 45 mm stroke, making it ideal for clamping, ejecting, or sorting tasks where space is tight.
With a body length of just 142 mm, this genuine AirTAC tie-rod cylinder fits easily into sub-assemblies and fixtures. The double-acting design uses filtered air to power both the extend and retract strokes, and the PT1/4 ports are compatible with common pneumatic fittings for straightforward plumbing.
| Model | Airtac SC40 Standard Cylinder SC40X45 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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. |
| ×45 | 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.
Delivers 628 N of clamping force at 0.5 MPa, perfect for holding workpieces in CNC fixtures or assembly jigs where a short, firm stroke is needed.
The 45 mm stroke and compact 142 mm body length make it a reliable actuator for stopping or diverting small packages and components on conveyor lines.
Ideal for light press-fit operations, inserting bearings, pins, or bushings with controlled force and a cushioned end-of-stroke to protect parts.
For applications needing a bit more force in the same 40 mm bore class, stepping up to a 50 mm bore (SC50 series) raises push force to 982 N at 0.5 MPa. If your load is lighter and you need a smaller footprint, the SC32 offers 402 N. Always match replacement cylinders on all five key points: bore, stroke, port thread (PT), mounting style, and magnet option. The SC40X45 uses a basic mount with no magnet, so a direct replacement must share these exact specs to ensure drop-in fit and function.
Quick checklist
At 0.5 MPa (5 bar), the SC40X45 provides 628 N of push force on the extend stroke and 528 N of pull force on the retract stroke. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N.
Yes, provided the old cylinder is an AirTAC SC series tie-rod type with a 40 mm bore, 45 mm stroke, PT1/4 ports, basic mount (no brackets), and no magnet. This is not an ISO 15552 cylinder, so it will not directly interchange with profile-cylinder brands unless they share the SC tie-rod dimensions.
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