The AirTAC Airtac SC40 Standard Cylinder SC40X925S is a genuine double-acting standard air cylinder with a Ø40mm bore and 925mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X925S is a double-acting tie-rod cylinder with a 40 mm bore and a 925 mm stroke, pre-fitted with a built-in magnet for direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors. Operating on filtered air at 0.15–1.0 MPa, this cylinder generates a theoretical push force of 628 N at 0.5 MPa and reaches 1130 N at the maximum operating pressure of 0.9 MPa, making it a capable mid-range actuator.
This model uses a 16 mm diameter piston rod with an M12x1.25 male thread and PT1/4 ports. The adjustable pneumatic cushion at each end (21 mm cushion length) decelerates the piston to reduce end-of-stroke impact. With a body length A of 142 mm, the total extended length is approximately 1067 mm. The standard TPU seals provide an operating temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X925S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 925 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. |
| ×925 | 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 925 mm stroke and magnetic piston allow precise end-of-stroke sensing to control a tall diverter gate on a packaging conveyor, confirming the gate is fully open or closed.
Ideal for pushing parts across a wide staging table into a CNC machining envelope, where the 1130 N force at 0.9 MPa handles sliding friction over the extended 925 mm travel.
Used in a light-duty vertical lift assist for a 925 mm rise, where the built-in magnet sensor confirms the carriage has returned to the home position before the next cycle begins.
Choose the SC40X925S when the 40 mm bore's force envelope fits your load. If you need more thrust, stepping up to the SC50 series provides 982 N of push force at 0.5 MPa. For lower air consumption on lighter tasks, the SC32 bore delivers 402 N at the same pressure. At a 925 mm stroke, the slender 16 mm rod is susceptible to bending under side loads; always guide the load externally or consider a guided cylinder if radial forces are present.
For a direct replacement, match five key points: 40 mm bore, 925 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic (no bracket) mounting configuration. This cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
The theoretical push force is 628 N at 0.5 MPa and 1130 N at the maximum operating pressure of 0.9 MPa. The pull force on the retract stroke is 528 N at 0.5 MPa due to the area of the 16 mm rod. For dynamic applications, factor in a 30-50% load ratio for speed control.
Yes. The -S suffix in the model code indicates a built-in magnet is installed on the piston. This allows you to clamp AirTAC CMSG, DMSG, or EMSG sensors directly onto the barrel tie-rods to detect piston position without any additional brackets.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.