Airtac SC40 Standard Cylinder SC40X198
The AirTAC Airtac SC40 Standard Cylinder SC40X198 is a genuine double-acting standard air cylinder with a Ø40mm bore and 198mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke198 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X198
The SC40X198 is a genuine AirTAC tie-rod cylinder delivering 628 N of push force at 0.5 MPa, scaling to 1130 N at the maximum operating pressure of 0.9 MPa. Its 198 mm stroke suits medium-reach clamping, pressing, and material-transfer tasks where a compact body length is needed.
Built with a 16 mm diameter piston rod and M12x1.25 rod thread, this double-acting unit uses PT1/4 ports and an adjustable air cushion (21 mm length) to decelerate the piston smoothly. The body length A is 142 mm, keeping the total extended length to approximately 340 mm.
Airtac SC40 Standard Cylinder SC40X198 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X198 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 198 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 SC40X198
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×198 | 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 SC40X198 Is Used
Light Press-Fit Assembly
The 628 N push force at 0.5 MPa is ideal for pressing bushings, bearings, or pins into housings on small assembly stations.
Part Stops & Diverters
Use the 198 mm stroke to extend a stop blade or diverter gate on a packaging or sorting conveyor line.
Clamping Fixtures
Applies consistent clamping pressure for woodworking or light metal fabrication jigs, with the 21 mm cushion absorbing impact at end of stroke.
Is the Airtac SC40 Standard Cylinder SC40X198 the Right Cylinder?
For applications needing more force, stepping up to the 50 mm bore SC50 series provides 982 N push at 0.5 MPa. If space is tight and the load is lighter, the 32 mm bore SC32 offers 402 N at the same pressure. The 198 mm stroke is within the 1200 mm maximum standard stroke for the 40 mm bore.
When replacing an existing cylinder, match five points: 40 mm bore, 198 mm stroke, PT1/4 port thread, basic mounting (no bracket), and confirm whether a magnet is required. This model has no built-in magnet; order SC40X198-S if sensor mounting is needed.
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 SC40X198 FAQ
At 0.5 MPa air pressure, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 cylinder of the same bore and stroke. It is not dimensionally interchangeable with ISO 15552 profile cylinders. Only replace another AirTAC SC40 tie-rod cylinder with matching bore, stroke, port thread, and mounting.
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