The AirTAC Airtac SC40 Standard Cylinder SC40X830 is a genuine double-acting standard air cylinder with a Ø40mm bore and 830mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X830 is a double-acting tie-rod cylinder with a 40 mm bore and an 830 mm stroke, delivering a push force of 628 N at 0.5 MPa (up to 1130 N at 0.9 MPa). Its 16 mm diameter piston rod and PT1/4 port provide a balanced combination of strength and flow for medium-length linear moves.
This model features an adjustable air cushion (21 mm length) to decelerate the piston smoothly at end-of-travel, reducing impact noise. The body length A is 142 mm, making the total extended length approximately 972 mm. As a genuine AirTAC SC series unit, it uses a TPU seal with a standard operating temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X830 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 830 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. |
| ×830 | 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 830 mm stroke and 628 N push force at 0.5 MPa are well-suited for raising and lowering stop gates on wide conveyor lines, controlling the flow of packages or pallets.
Ideal for transferring parts between distant stations in automated assembly. The adjustable cushion protects components from shock at the end of the 830 mm travel.
Provides reliable linear motion for opening and closing large ventilation dampers in agricultural or industrial buildings, operating efficiently on standard filtered compressed air.
The SC40X830 suits applications needing moderate force over a long reach. If higher force is required, consider stepping up to the 50 mm bore (SC50, 982 N at 0.5 MPa); for a lighter, more compact solution, the 32 mm bore (SC32, 402 N) may suffice. Always match the bore, 830 mm stroke, PT1/4 port thread, and basic mounting when replacing an existing cylinder.
For an 830 mm stroke, side loading on the 16 mm rod is a critical consideration. Long, unsupported rods are susceptible to bending and bearing wear under lateral forces. Use an external linear guide or a guided cylinder assembly to absorb side loads and protect the rod bearing, ensuring reliable service life.
Quick checklist
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
A stroke of 830 mm on a 16 mm rod creates a high risk of bending under side loads. You must guide the load externally with a linear rail system, or use a guided cylinder variant. The SC40X830's adjustable air cushion only decelerates the piston; it does not support side loads or hold a position.
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