Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 325mm 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.
- BoreØ160 mm
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S
The AirTAC SAIJ160X325-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust thrust for heavy-duty automation. Featuring a 160mm bore, it generates 14074N of push force at 0.7 MPa. The integrated -75 adjustment code creates a usable travel window between 250 and 325mm, enabling precise end-position tuning without swapping out the entire actuator. This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a magnetic piston (-S) for position sensing.
Because the 325mm stroke is substantial, the 40mm diameter rod and M36x2 thread provide necessary rigidity, though an external guide is recommended to manage side loads on long extensions. The rear stopper allows you to dial in the exact retract distance during commissioning, which is far more efficient than machining custom spacers. Remember that this adjuster acts only as a travel stop and does not hold the load pneumatically; for dead-air load holding, consider an external pilot-operated check valve or the AirTAC SAIL lock variant.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 325 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 | 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.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×325 | 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 SAIJ160BX325-75S Is Used
Heavy Machinery Changeover
Dial in the 250-325mm travel window during product family changeovers on large presses, using the rear screw to set exact retract positions without external stops.
Variable End-Stop Positioning
Ideal for heavy-duty material handling where the exact end-of-stroke contact point must be fine-tuned on the machine to accommodate different workpiece lengths.
Corrosive Environment Actuation
The SUS304 stainless steel rod makes this adjustable cylinder suitable for testing equipment or washdown environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-75S the Right Cylinder?
Choose this 160mm bore actuator when your application requires substantial force, such as 10053N push at 0.5 MPa, and variable end-stops. If your setup demands less thrust, stepping down to a 125mm bore yields 8590N at 0.7 MPa, while moving up to a 200mm bore provides 21991N. The adjustable stroke is ideal for production lines that undergo frequent product changeovers, allowing operators to fine-tune the 250-325mm travel window on the fly instead of installing a fixed-stroke SAI cylinder.
This model is dimensionally interchangeable per ISO 15552, utilizing a PT tapered port and supporting mountings from the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The -S magnet pairs directly with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. Operating speed is rated at 30-500 mm/s.
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 SAIJ160BX325-75S FAQ
At 0.5 MPa, this 160mm bore cylinder provides 10053N of push force and 9425N of pull force. At 0.7 MPa, the push force increases to 14074N, with a maximum push force of 18095N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 325mm stroke by up to 75mm, providing an effective adjustable travel window of 250 to 325mm. This stopper only sets the end position and does not lock the load without live air pressure.
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