
The AirTAC SAI50 Standard Cylinder SAI50AX270S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 270mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI50X270-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa across a 270 mm stroke. Its extruded aluminum barrel omits tie-rods, presenting a clean profile that drops directly into standardized ISO 15552 mounting interfaces without dimensional conflicts.
This specific configuration includes a SUS420J2 stainless steel rod (option A) for superior corrosion resistance compared to standard carbon steel. The integrated magnet (-S) enables direct mounting of CMSE or DMSE sensor switches along the dual grooves machined into both sides of the barrel.
| Model | Airtac SAI50 Standard Cylinder SAI50AX270S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×270 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Provides the 982 N force needed to actuate routing gates on high-speed sorting lines, with the 270 mm stroke offering ample travel for large cartons.
Ideal for pressing lightweight bearings or pins into housings, utilizing the SUS420J2 rod to resist moisture in washdown environments.
Acts as a robust stop mechanism for pallets accumulating on gravity conveyors, safely absorbing impact via the adjustable end cushions.
Selecting this 50 mm bore over the smaller 40 mm bore upgrades your thrust from 628 N to 982 N at 0.5 MPa, while stepping up to a 63 mm bore yields 1559 N. Because this 270 mm stroke exceeds 300 mm is not the case here, but it is getting close; always evaluate rod bearing bending under side loads. For heavy radial forces, utilize external guide rails or switch to a guided cylinder to prevent premature wear.
The PT tapered port threads ensure a robust, metal-to-metal seal. This model is dimensionally interchangeable with other ISO 15552 cylinders, utilizing standard FA/FB flanges or TC trunnion mounts. Remember that the adjustable air cushions only decelerate the piston near end-of-stroke; they do not hold a load. If pressure drops, the rod drifts, so deploy a SAIL variant for pneumatic locking needs.
Quick checklist
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. If you operate at 0.7 MPa, the push force increases to 1374 N.
No, the standard SAI cylinder drifts when pressure is removed. The adjustable cushions only slow the piston at stroke end. For true load holding, use the SAIL (air-released lock) variant or an external rod lock.
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