
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX140-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ160X140-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 120-140 mm usable travel window, allowing you to dial back the 140 mm nominal stroke by up to 20 mm during commissioning.
Equipped with a SUS304 stainless steel rod (option B) and PT tapered port threads, it handles demanding environments. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts strictly as a travel stop for end-position tuning, not a load-holding lock.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX140-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 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. |
|---|---|
| 160 | Bore size in mm. |
| ×140 | 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.
Fine-tune the rear stopper to dial in the exact 120-140 mm travel window for heavy press operations without changing the cylinder.
Adjust the end position on the fly during a production line changeover to accommodate different large product dimensions.
Use the 20 mm adjustment range at commissioning to perfectly set the retracted end position for large machinery setup.
The adjustable stroke is ideal for product changeovers, letting you fine-tune the end stop without swapping cylinders or adding external stops. To replace an ISO 15552 cylinder, match the 160 mm bore, 140 mm stroke, 20 mm adjustment, PT port thread, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface.
For holding loads without live air pressure, this plain SAIJ is insufficient—the rear adjuster only sets the travel end. You would need an external rod lock, a pilot-operated check valve, or AirTAC SAIL and BSAI locking cylinders. Although the 40 mm rod and M36x2 thread handle high side loads, long unsupported strokes still require an external guide.
Quick checklist
It can deliver a maximum of 2050 kgf at 1.0 MPa.
The rear adjusting screw acts as a stopper that lets you shorten the effective stroke by up to 20 mm. This creates a 120-140 mm usable travel window, allowing precise end-position tuning without replacing the cylinder.
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