Airtac SC40 Standard Cylinder SC40X185
The AirTAC Airtac SC40 Standard Cylinder SC40X185 is a genuine double-acting standard air cylinder with a Ø40mm bore and 185mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke185 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X185
The SC40X185 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod family, pairing a 40 mm bore with a 185 mm stroke. At 0.5 MPa it provides a push force of 628 N, making it a capable mid-range actuator for clamping, pressing, and diverting tasks. The 16 mm diameter piston rod and 21 mm adjustable air cushion at each end help manage end-of-stroke impact.
This model uses the standard PT1/4 port and M12x1.25 rod thread, with a compact body length A of 142 mm. The total extended length is approximately 327 mm. The SC series is a genuine tie-rod cylinder, shorter than an ISO 15552 profile, and is designed for filtered air service with a standard TPU seal rated for -20 to +70 °C.
Airtac SC40 Standard Cylinder SC40X185 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X185 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 185 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac SC40 Standard Cylinder SC40X185
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×185 | 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.
Where the Airtac SC40 Standard Cylinder SC40X185 Is Used
Package Diverting
The 628 N push force at 0.5 MPa reliably shifts cartons or totes on a conveyor line, with the 185 mm stroke providing enough reach for standard lane diverters.
Pneumatic Clamping
Ideal for jigs and fixtures requiring consistent clamping pressure. The adjustable cushion reduces noise and vibration as the clamp closes on the workpiece.
Material Stamping
Delivers a crisp 1130 N of force at the maximum 0.9 MPa operating pressure for light stamping, embossing, or forming operations in automated cells.
Is the Airtac SC40 Standard Cylinder SC40X185 the Right Cylinder?
For applications needing more force, stepping up to the 50 mm bore SC50 series increases push force to 982 N at the same 0.5 MPa pressure. If space is tight and less force is acceptable, the 32 mm bore SC32 provides 402 N. This 185 mm stroke is a standard length for the 40 mm bore, which supports strokes up to 1200 mm.
When replacing an existing cylinder, match five key points: 40 mm bore, 185 mm stroke, PT1/4 port thread, basic (no accessory) mounting, and no magnet. This ensures dimensional and port interchangeability with another AirTAC SC40 tie-rod unit.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC40 Standard Cylinder SC40X185 FAQ
At the standard 0.5 MPa operating pressure, the push force is 628 N and the pull force on the return stroke is 528 N. At 0.7 MPa, push force rises to 879 N, and at the maximum 0.9 MPa operating pressure, it reaches 1130 N.
No. The AirTAC SC series is a tie-rod cylinder that is physically shorter than an ISO 15552 profile cylinder. It will not drop into an ISO 15552 footprint. It is a direct dimensional match only for another AirTAC SC40 tie-rod cylinder with the same stroke and port configuration.
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