
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 185mm 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 SAIJ160X185-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This creates a highly flexible 110-185 mm usable stroke window, ideal for dialing in exact end positions during machine commissioning without swapping hardware. It delivers robust thrust, generating 10053 N of pull force at 0.5 MPa and 14074 N of push force at 0.7 MPa.
This large-bore unit uses a 40 mm carbon steel rod with an M36x2 thread, providing substantial rigidity against side loads, though external guidance is still recommended for heavy tooling. It features a PT G3/4 port and relies on a 50 mm variable air cushion at both ends to decelerate the load smoothly. The extruded aluminum barrel includes dual sensor grooves, and because no magnet is specified, position sensing requires adding one separately if needed.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 185 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. |
| ×185 | 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 110-185 mm stroke window during press setup to accommodate varying material thicknesses without machining custom spacers.
Rapidly adjust retract end positions via the rear stopper when switching the production line to a different product size.
Utilize the 14074 N push force at 0.7 MPa to secure large workpieces, while trimming the travel back to prevent over-travel damage.
Choose this 160 mm bore when your application demands high force that exceeds the 6136 N pull of the 125 mm bore at 0.5 MPa, but you want to avoid the massive 15708 N push of the 200 mm variant. The 75 mm adjustment range is particularly valuable for product changeovers, allowing operators to set new retract stops on the fly instead of fabricating external mechanical spacers. For any stroke at or above 300 mm, you must use external guide rails to prevent rod binding, but at 185 mm the robust 40 mm rod handles moderate eccentric loads well.
When specifying a replacement, match the 160 mm bore, 185 mm stroke, 75 mm adjustment, PT G3/4 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2, omitting FB, CA, CB, CR). Remember that the rear adjuster acts only as a travel stop and the air cushion provides deceleration; neither will hold a load without live air pressure. For true fail-safe load holding, select the SAIL pneumatic lock or BSAI clamp-lock series instead.
Quick checklist
At 0.5 MPa it provides 10053 N of pull force and 14074 N of push force at 0.7 MPa. The maximum push force is 18095 N at 0.9 MPa.
The rear adjuster screw lets you shorten the 185 mm nominal stroke by up to 75 mm, creating a 110-185 mm travel window. It acts as a mechanical stop for end-position tuning and does not lock the load without air pressure.
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