
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX220-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 220mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X220-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 180 to 220 mm, allowing you to dial back the nominal 220 mm stroke by up to 40 mm during commissioning.
This unit uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads (G3/8) and operates at speeds of 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is specified later. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX220-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 220 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
|---|---|
| 80 | 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 180-220 mm travel window during product size transitions to set new end stops rapidly without changing the cylinder.
Fine-tune the retract end position during commissioning to achieve exact placement of heavy 80 mm bore payloads.
Use the adjustable stop to precisely set the indexing distance on automated assembly lines handling varied component sizes.
Choose this 80 mm bore model when your application requires substantial force—stepping down to a 63 mm bore yields 2805 N at 0.9 MPa, which may be insufficient for heavier payloads. The adjustable stroke is selected over a fixed SAI cylinder when you need precise end-position tuning during machine setup or product changeover without adding external stops. Since the 220 mm stroke exceeds 300 mm, an external guide is recommended to prevent excessive side-loading on the rod.
When specifying an ISO 15552 replacement, match the 80 mm bore, 220 mm nominal stroke, 40 mm adjustment range, PT G3/8 ports, and the desired mounting kit. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, consider the SAIL or BSAI series.
Quick checklist
The maximum thrust is 513 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the effective travel from the 220 mm nominal stroke down to 180 mm. It functions as a mechanical stop to fine-tune the end position, not as a lock to hold the load.
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