The AirTAC Airtac SC Standard Cylinders SC80X275G is a genuine double-acting standard air cylinder with a Ø80mm bore and 275mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC80X275G is a double-acting tie-rod cylinder with G3/8 BSPP parallel ports. Because the G thread is straight rather than tapered, it seals on a bonded face washer instead of the thread crest, so no tape or paste is wound onto the port. At 0.5 MPa it pushes with about 2513 N and pulls with 2268 N, placing it in the mid-heavy force class where many plants switch from compact extruded profiles to a rugged tie-rod body. The 275 mm stroke is a standard figure for the 80 mm bore (which runs to 1500 mm), and it gives roughly 457 mm overall when extended, since the 182 mm body length A adds to the stroke. A 25 mm hardened rod, M20x1.5 knuckle thread and 28 mm adjustable cushions per end let this cylinder cycle hard in 275 mm-wide work envelopes at speeds up to 800 mm/s.
| Model | Airtac SC Standard Cylinders SC80X275G |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (approx.) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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.
Pushes stacked carton layers off a forming plate onto a roller conveyor. The 275 mm stroke clears a standard layer footprint, and 2513 N at 0.5 MPa moves loads that stall smaller 63 mm pushers.
Clamps aluminum tube blanks before the bend head cycles. Near 4523 N at 0.9 MPa holds the workpiece against bending reaction forces, while G3/8 BSPP ports drop straight into European machine plumbing.
Slides a swarf drawer out for emptying on a 275 mm travel. The tie-rod body and 28 mm adjustable cushions absorb the repeated slam of a heavily loaded drawer at end of stroke.
Size both ways before committing: step down to the SC63 if 1559 N at 0.5 MPa is enough for the job, or step up to the SC100 when you need the 3927 N class. The SC80 sits between them with 2513 N at 0.5 MPa and 4523 N at the 0.9 MPa maximum, which covers most 275 mm-stroke pushing and clamping duties without a larger envelope. Because this SKU carries the G suffix, verify your plumbing first: G3/8 is a parallel BSPP port meant to seal on a bonded washer, so match it to existing BSPP fittings or an EU/Asia-style OEM manifold rather than tapered NPT hardware. The PT3/8 version exists if your manifold is tapered. For the replacement checklist, match all five points: 80 mm bore, 275 mm stroke, G3/8 port thread, mounting accessory (LB, FA, FB, CA, CB, TC or TCM1) and the -S magnet code if reed sensors are fitted. At 275 mm stroke the rod is well supported, but if side load is present add an external guide rather than letting the 25 mm rod carry it.
Quick checklist
At 0.5 MPa supply the 80 mm bore delivers 2513 N on extension and 2268 N on retraction (the 25 mm rod reduces the annulus). At 0.9 MPa, the top of the operating range, extension force reaches 4523 N. The theoretical maximum is about 513 kgf at 1.0 MPa. The 28 mm adjustable cushions decelerate the piston at each end but do not lock or hold the load when air is lost, so a mechanical lock or pilot-operated check valve is needed for position holding.
Only if the old cylinder also has G (BSPP parallel) ports. G3/8 is a straight thread that seals on a bonded washer on the port face, so it needs BSPP fittings or a bonded-seal stud, and it must not be swapped into a manifold drilled for tapered PT3/8 or NPT threads. Confirm the other four match points as well: 80 mm bore, 275 mm stroke, the same mounting accessory, and the -S magnet suffix if your original used magnetic sensors. The SC is a tie-rod cylinder, not ISO 15552, so it is not dimensionally interchangeable with profile cylinders of other brands.
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