The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX220-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 220mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ50X220-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 190-220 mm usable travel window. Delivering 982 N of push force at 0.5 MPa, it handles mid-range automation tasks with precision. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model uses a SUS420J2 stainless steel rod for superior corrosion resistance compared to standard carbon steel. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without adding external shims, while the PT tapered port threads ensure a reliable, sealed connection.
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX220-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 220 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. |
| ×220 | 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.
Dial in the exact 190-220 mm end position during commissioning to perfect a pressing operation without machining external spacers.
Quickly shorten the stroke by up to 30 mm on a packaging line when switching to a smaller product size.
Adjust the retract stop on a transfer conveyor to accommodate different package lengths on the fly.
Choose this 50 mm bore when a 40 mm bore (628 N push at 0.5 MPa) lacks the necessary force, but an 80 mm bore (2513 N) would be excessive overkill. The 30 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end position without swapping the cylinder. For load-holding without live air pressure, note that this cylinder's adjuster is a stop, not a lock; you would need an SAIL or BSAI series cylinder instead. ISO 15552 replacement match: 50 mm bore, 220 mm stroke, 30 mm adjust, PT G1/4 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, no magnet.
Quick checklist
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back from the 220 mm nominal stroke down to 190 mm. It decelerates the end position but does not lock the load without live air.
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