
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 400mm 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 SAIJ160X400-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 380-400 mm window. Delivering 18095 N of pull force at 0.9 MPa, it handles heavy-duty positioning tasks with precision.
Equipped with a SUS304 stainless steel rod and PT tapered port threads, this unit omits the FB, CA, CB, and CR mounting options, supporting only the Basic, FA, LB, TC, FTC, TCM1, and TCM2 interface set. The rear adjuster acts strictly as a travel stop for commissioning, not a load lock.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX400-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 400 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. |
| ×400 | 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 380-400 mm end position during heavy press commissioning without adding external mechanical stops.
Adapt the retract end-stop on the fly when changing product sizes on a high-thrust packaging line.
Fine-tune the stroke window during format changeovers on large machinery to avoid recalculating fixed cylinder lengths.
Choose this 160 mm bore when the 100 mm class (offering 7068 N push at 0.9 MPa) is insufficient for your dynamic load. The 20 mm adjustment range is ideal for dialing in exact end positions during machine setup or product changeover without swapping cylinders. For strokes of 400 mm, the 40 mm diameter rod handles high side loads, but an external guide is still recommended to prevent binding.
If your application requires the load to be held in place without live air pressure, note that this adjuster only sets the travel end. You would need to step up to an AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) cylinder for true load-holding capability. This model is dimensionally interchangeable with ISO 15552 cylinders, matching the 160 mm bore, 400 mm stroke, PT G3/4 port, and standard mounting footprint.
Quick checklist
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides 18095 N of pull force and 14074 N of push force. The maximum force at 1.0 MPa is 2050 kgf.
The rear adjuster screw lets you shorten the nominal 400 mm stroke by up to 20 mm, creating a usable travel window of 380-400 mm. It functions as a travel stop for end-position tuning and does not lock the load without live air.
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