
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 270mm stroke, G3/4 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 SAIJ160X270-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 18095N at 0.9 MPa. With a nominal 270 mm stroke and a 100 mm adjustment range, it provides an exact 170-270 mm usable travel window for highly precise end-position tuning. This bore features a robust 40 mm piston rod, G3/4 porting, and operates at speeds of 30-500 mm/s.
This specific configuration includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and a built-in magnet (-S) for position sensing. The extruded aluminum barrel features sensor grooves on both sides, allowing you to easily mount AirTAC CMSE reed or DMSE electronic solid-state switches. The rear stopper screw allows you to dial in the retract position during commissioning without adding external stops, though it acts only as a travel stop and not a lock.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 270 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 | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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. |
|---|---|
| 160 | 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.
Dial in the 170-270 mm travel window during product size changes on large equipment without physically replacing the actuator.
Fine-tune the retract position of heavy pressing or clamping operations at commissioning using the rear stopper screw.
Leverage the SUS304 stainless steel rod for large-scale positioning tasks in washdown or mildly corrosive industrial settings.
Choose this 160 mm bore when an 80 mm bore (4523N push at 0.5 MPa) lacks the force for heavy loads, but a 200 mm bore is physically oversized. The 100 mm adjustment window is ideal for product changeovers on large machinery, letting you shift the end-stop from 170 to 270 mm on the fly instead of swapping the entire cylinder. For fixed-position tasks without variation, a standard SAI cylinder is simpler.
Because this is a 270 mm stroke, the 40 mm SUS304 rod handles high side loads well, but an external guide is still recommended for heavy off-center loads to prevent premature seal wear. To replace an ISO 15552 cylinder, match the 160 mm bore, 270 mm stroke, 100 mm adjust, PT tapered ports, and the -S magnet. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear adjuster and air cushions do not hold the load without live air; use a SAIL or BSAI lock cylinder for fail-safe holding.
Quick checklist
At 0.9 MPa operating pressure, this 160 mm bore cylinder generates a push force of 18095N and a pull force of 9425N. Its maximum thrust at 1.0 MPa is 2050 kgf.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 270 mm down to 170 mm. This provides a 170-270 mm travel window for setup flexibility, but it does not lock the load without live air pressure.
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