
The AirTAC SAI50 Standard Cylinder SAI50X330S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 330mm 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 SAI50X330-S is a double-acting ISO 15552 profile cylinder engineered for automated machinery. It provides 982N of push force at 0.5 MPa and 825N of pull force, making it well-suited for mid-range actuation tasks over a 330mm travel distance. The extruded aluminum barrel omits tie-rods, presenting a clean exterior that simplifies machine integration.
This specific configuration includes a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. The dual sensor grooves on the barrel accept CMSE or DMSE switches, ensuring precise end-of-stroke detection. Fluid ports feature a PT tapered thread design, and adjustable air cushions at both ends protect the end caps from impact damage.
| Model | Airtac SAI50 Standard Cylinder SAI50X330S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 330 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. |
| ×330 | 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.
Actuates diverter arms along packaging lines to route boxes into specific lanes without stalling the main conveyor flow.
Pushes molded parts out of an injection mold cavity over a long stroke, clearing the machine bed for the next cycle.
Drives lifting mechanisms in low-profile pallet transfer stations, utilizing the 330mm stroke to clear adjacent rollers.
Choosing this 50mm bore over the smaller 40mm bore upgrades your thrust from 628N to 982N at 0.5 MPa, whereas stepping up to a 63mm bore yields 1559N. Because this model features a 330mm stroke, the extended carbon steel rod is highly susceptible to bending under side loads. To prevent premature seal wear and rod-bearing failure, pair this cylinder with an external linear guide or utilize a guided cylinder assembly to absorb lateral forces.
This unit is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other standard profile cylinders. It uses a G1/4 PT port, an M16x1.5 rod thread, and can be mounted using FA/FB flanges or TC trunnion brackets. Remember that the adjustable cushions only decelerate the piston; they do not hold a load vertically if air pressure is lost. For suspended loads requiring fail-safe holding, consider the SAIL variant with an air-released lock.
Quick checklist
At 0.5 MPa, this 50mm bore cylinder provides 982N of push force and 825N of pull force. If your system runs at 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X330-S is built to the ISO 15552 standard, making its mounting dimensions interchangeable with other ISO 15552 profile cylinders. Ensure your existing setup accommodates the G1/4 port and M16x1.5 rod thread.
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