Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX120-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 120mm 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.
- BoreØ160 mm
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75
The AirTAC SAIJ160X120-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated rear stopper allows you to trim the nominal 120 mm stroke back by up to 75 mm, creating a highly flexible 45-120 mm usable travel window for precise end-position tuning during commissioning.
This heavy-duty actuator features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. It includes adjustable air cushions at both ends to manage high kinetic energy, though the rear adjuster acts only as a travel stop and does not hold the load without live air pressure. The extruded aluminum barrel includes dual sensor grooves, and the mounting set omits FB, CA, CB, and CR options, focusing on Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 120 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.
Theoretical Output Force (Ø160mm)
| 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.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×120 | 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.
Where the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75 Is Used
Heavy Press Changeover
Dial in the exact 45-120 mm travel window during product size changeovers on heavy presses without replacing the entire actuator.
Variable End-Stop Forming
Fine-tune the retraction end-position on metal forming lines to accommodate varying material thicknesses on the fly.
Machine Commissioning
Use the rear adjuster to perfectly set the stroke limit during initial machine setup, avoiding the need for external mechanical stops.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75 the Right Cylinder?
Select this 160 mm bore cylinder when your application requires extreme force—stepping down to a 125 mm bore drops the 0.5 MPa pull force to 5734N, whereas this 160 mm bore provides 9425N at the same pressure. The 75 mm adjustment range is ideal for machinery requiring frequent product-size changeovers, allowing operators to dial in the exact end-stop without swapping cylinders or adding external stops. For load-holding without continuous air pressure, this standard SAIJ is insufficient; you should consider an SAIL or BSAI locking cylinder instead.
Because the nominal stroke of 120 mm is relatively short for this large bore, side-load risks are minimal, but the substantial 40 mm rod diameter and M36x2 thread handle high mechanical stress well. When replacing an existing ISO 15552 cylinder, ensure you match the 160 mm bore, 120 mm stroke, 75 mm adjustment range, PT port threads, and the appropriate mounting accessory from the supported set.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-75 FAQ
It reaches a maximum of 2050 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 120 mm nominal stroke by up to 75 mm, providing a usable travel window of 45 to 120 mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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