Airtac SC40 Standard Cylinder SC40X75
The AirTAC Airtac SC40 Standard Cylinder SC40X75 is a genuine double-acting standard air cylinder with a Ø40mm bore and 75mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke75 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X75
The AirTAC SC40X75 is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa), making it a compact workhorse for medium-speed clamping and transfer tasks. Its 16 mm diameter piston rod and 21 mm air cushion at each end provide reliable deceleration without external shock absorbers.
With a body length of 142 mm and a 75 mm stroke, the total extended length reaches 217 mm, fitting neatly into fixtures where space is limited. The PT1/4 ports and M12×1.25 rod thread are standard across the 40 mm bore SC family, simplifying spare-part planning.
Airtac SC40 Standard Cylinder SC40X75 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X75 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 SC40X75
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SC40X75 Is Used
Small-Part Transfer
Pushes or diverts lightweight components on assembly conveyors where a 75 mm stroke provides enough reach without overhanging the line.
Clamping & Fixturing
Applies 628 N of holding force at standard shop air for jigs and test fixtures, with the adjustable cushion protecting delicate parts at end-of-stroke.
Packaging Gate Actuation
Operates a small gate or flap on a packaging machine, cycling reliably with filtered compressed air and the standard TPU seals rated from -20 to +70 °C.
Is the Airtac SC40 Standard Cylinder SC40X75 the Right Cylinder?
Choose the SC40X75 when 32 mm bore force (402 N at 0.5 MPa) is marginal but the larger 50 mm frame (982 N) would add unnecessary bulk. The 40 mm bore hits a sweet spot for many pick-and-place and light press applications.
For strokes of 75 mm, side-load risk is low, but always align the rod axis with the load to protect the bronze rod bearing. When replacing an existing cylinder, match all five key points: bore, stroke, PT1/4 port thread, basic mounting, and the absence of a magnet.
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 SC40X75 FAQ
At the standard operating pressure of 0.5 MPa, the push force is 628 N. At 0.7 MPa it rises to 879 N, and the maximum operating force at 0.9 MPa is 1130 N. The theoretical force at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder of the same bore and stroke, so mounting dimensions and body length differ. It is a direct replacement only for another AirTAC SC40 cylinder with matching stroke, port thread, and mounting configuration.
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