The AirTAC Airtac SC40 Standard Cylinder SC40X30S is a genuine double-acting standard air cylinder with a Ø40mm bore and 30mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X30S is a compact-stroke double-acting cylinder delivering 628 N of push force at 0.5 MPa from a 40 mm bore. With a 30 mm stroke and a 16 mm diameter piston rod, it suits short linear movements in clamping, ejecting, and sorting fixtures where space is tight.
This model carries the -S magnet suffix, embedding a magnetic ring on the piston so CMSG, DMSG, or EMSG reed and solid-state sensors can mount directly on the tie-rod barrel for non-contact position feedback. The adjustable air cushion at each end absorbs impact energy over a 21 mm cushion length, and the PT1/4 ports keep flow paths compact for the 30-800 mm/s speed range.
| Model | Airtac SC40 Standard Cylinder SC40X30S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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. |
| ×30 | 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 30 mm stroke and 628 N push force are well matched to pneumatic toggle clamps and work-holding fixtures on CNC machining centres, where the built-in magnet confirms jaw position before the spindle starts.
Delivers a crisp 30 mm push to divert small components off a conveyor. The -S magnet lets a DMSG sensor verify full extension on every cycle, preventing jams in high-speed sorting lines.
The clean, oil-free air operation and compact 142 mm body length suit benchtop liquid-handling and vial-capping stations. Non-contact EMSG sensors give cycle counts without adding mechanical switches.
Choose the SC40X30S when 628 N at 0.5 MPa covers the load and the 30 mm stroke fits the tooling. If the application needs more force, stepping up to the 50 mm bore delivers 982 N push at the same pressure, though the body length grows from 142 mm to 150 mm. For longer strokes on the same bore, the SC40 series extends to a 1200 mm standard maximum.
When replacing an existing cylinder, match five points: 40 mm bore, 30 mm stroke, PT1/4 ports, the built-in magnet (-S), and the basic (no-bracket) mounting. The SC is a tie-rod design and will not drop into an ISO 15552 profile footprint—verify the shorter body length A of 142 mm against the mounting hole centres.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N and pulls with 528 N. At 0.7 MPa push rises to 879 N, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf, though the rated operating range is 0.15–1.0 MPa.
Yes. The -S suffix means the piston carries a factory-installed magnetic ring. You can clamp AirTAC CMSG or DMSG reed switches, or EMSG solid-state sensors, directly onto the tie-rod barrel—no brackets or adapter kits are needed.
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