
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX155-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 155mm 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 SAIJ160X155-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability eliminates the need to swap cylinders or bolt on external stops when fine-tuning end positions.
This SKU is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance, a PT tapered port thread, and an integrated magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the variable air cushions at both ends work alongside the rear mechanical stopper to decelerate the load smoothly.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX155-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 155 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. |
| ×155 | 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 115-155mm clamping reach on large machining fixtures without swapping out the entire cylinder or adding external shims.
Rapidly adapt automated press lines to different workpiece heights by adjusting the rear stopper to shift the end-of-stroke position.
Dial in the exact extended position during machine setup to prevent over-travel and ensure precise mechanical contact.
The rear adjuster acts purely as a travel stop and does not hold the load without live air, so for fail-safe load holding you should specify a SAIL pneumatic lock or BSAI clamp-lock cylinder instead. As a dimensionally interchangeable ISO 15552 profile cylinder, it matches standard mounting footprints using the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set (omitting FB, CA, CB, and CR). Because the 155mm stroke is relatively short for this large bore, side-load stress is minimal, but you should still ensure the M36x2 rod thread is properly aligned to avoid binding.
Quick checklist
The rear adjuster allows you to shorten the effective travel by up to 40mm, creating a 115-155mm usable stroke window. It acts as a mechanical stop to set the end position, but it is not a lock and will not hold the load without continuous air pressure.
At the maximum 1.0MPa pressure, the push force reaches 2050kgf.
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