The AirTAC Airtac SC40 Standard Cylinder SC40X708S is a genuine double-acting standard air cylinder with a Ø40mm bore and 708mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X708S is a double-acting single-rod pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 708 mm stroke suit mid-force applications requiring extended linear reach, while the built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for precise position feedback.
This tie-rod cylinder uses a 16 mm diameter piston rod with M12x1.25 threads and PT1/4 ports. The adjustable air cushion (21 mm length) decelerates the piston smoothly, reducing end-of-stroke impact. With a body length A of 142 mm, the total extended length is approximately 850 mm, making it a compact solution for long-stroke sensor-monitored actuation.
| Model | Airtac SC40 Standard Cylinder SC40X708S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 708 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. |
| ×708 | 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 built-in magnet and long 708 mm stroke enable multi-position sensing for automated pick-and-place or material transfer systems requiring intermediate stop confirmation.
Delivers 628 N at 0.5 MPa to reliably actuate divert gates or flippers on packaging and sorting conveyors, with magnetic sensors confirming gate position.
Provides extended reach for clamping or positioning fixtures in assembly cells, where the adjustable cushion protects delicate components during high-speed cycling.
For applications needing slightly more force, stepping up to the 50 mm bore SC50 series provides 982 N at 0.5 MPa. If a shorter stroke and lower force are acceptable, the 32 mm bore offers 402 N. At 708 mm stroke, the unsupported rod length is significant; external linear guides or a guided cylinder should be used to protect the rod bearing from side loads.
To guarantee a correct replacement, match five points: 40 mm bore, 708 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic (no bracket) mounting configuration. This cylinder is not dimensionally interchangeable with ISO 15552 profiles.
Quick checklist
At 0.5 MPa (5 bar) the cylinder pushes with 628 N. At 0.7 MPa it delivers 879 N, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N. The theoretical pull force at 0.5 MPa is 528 N.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 profile cylinder, so mounting dimensions and end-cap interfaces differ. It is a direct replacement only for another AirTAC SC40 cylinder with the same stroke, PT ports, and magnet option.
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