The AirTAC Airtac SC40 Standard Cylinder SC40X340S is a genuine double-acting standard air cylinder with a Ø40mm bore and 340mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X340S is a double-acting single-rod tie-rod cylinder with a 40 mm bore and 340 mm stroke, pre-fitted with a magnet for direct mounting of CMSG/DMSG/EMSG sensors. At 0.5 MPa it provides 628 N push force and 528 N pull force, rising to 1130 N at the maximum operating pressure of 0.9 MPa, making it a capable mid-range actuator for automated handling and clamping.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion at each end has a 21 mm cushion length, and the tie-rod body length is 142 mm. With a 340 mm stroke the total extended length is approximately 482 mm. The built-in magnet allows position feedback via reed or solid-state sensors clamped directly to the barrel.
| Model | Airtac SC40 Standard Cylinder SC40X340S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 340 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. |
| ×340 | 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 340 mm stroke and 0.5 MPa push force of 628 N reliably actuates diverter gates on packaging and sortation conveyors, with the magnetic piston enabling end-of-stroke confirmation.
Provides consistent clamping force for medium-duty CNC fixtures and welding jigs. The built-in magnet allows interlocking signals to ensure the part is clamped before a cycle starts.
Ideal for ergonomic lift-assist arms in assembly cells, moving bins or tools through a 340 mm vertical stroke. The adjustable cushion reduces end-of-travel shock for smoother operation.
The SC40X340S suits applications needing a 340 mm stroke with sensor feedback. If you need more force, stepping up to the 50 mm bore provides 982 N push at 0.5 MPa; if a more compact body is preferred, the 32 mm bore delivers 402 N. For strokes of 300 mm or more, assess side loads carefully—an unsupported 16 mm rod at full extension can bend under lateral force. Use an external guide rail or a guided cylinder if the load is not perfectly axial. When replacing an existing cylinder, match bore, stroke, PT port thread, the built-in magnet, and the basic (no bracket) mounting configuration.
Quick checklist
At 0.5 MPa (5 bar) the push force is 628 N and the pull force is 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.
It is a direct replacement only for an AirTAC SC series cylinder of the same 40 mm bore, 340 mm stroke, PT1/4 ports, basic mount, and built-in magnet. The SC body is shorter than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable with ISO 15552 types.
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