
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 125mm 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 SAIJ160X125-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 50 to 125 mm, allowing you to dial back the nominal 125 mm stroke by up to 75 mm during commissioning. This bore size delivers massive thrust, pushing 14074 N and pulling 9425 N at 0.7 MPa.
The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches if needed later. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without adding external stops; it does not hold the load without live air pressure.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 125 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. |
| ×125 | 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 50 to 125 mm press end-position during setup without swapping out the entire cylinder or adding external mechanical stops.
Quickly adapt the stroke window on automated lines when product sizes change, using the 75 mm rear adjustment range to accommodate new travel limits.
Fine-tune the retract end-position at machine commissioning to absorb mechanical tolerances, ensuring precise heavy-load placement.
Choose this 160 mm bore cylinder when an application requires heavy thrust up to 14074 N (at 0.7 MPa) alongside variable end-position tuning. If you need less force, stepping down to a 125 mm bore provides 8590 N push at 0.7 MPa. The adjustable stroke is ideal for product changeovers, whereas a fixed-stroke SAI cylinder suits dedicated single-purpose stations.
For load-holding without continuous air pressure, select a SAIL pneumatic lock or BSAI clamp-lock cylinder instead, as the SAIJ adjuster is not a brake. This model uses PT tapered G3/4 ports and a carbon steel rod. With a 125 mm stroke, side-load is minimal, but always ensure rigid guiding for heavier attachments. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. It can deliver a maximum push of 18095 N at 0.9 MPa.
The rear adjusting screw acts as a mechanical stop that allows you to shorten the effective stroke by up to 75 mm. This creates a usable travel window of 50 to 125 mm, enabling fine-tuning of the end position without replacing the cylinder.
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