Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 325mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke325 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S
The AirTAC SAIJ100X325-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a generous 225 to 325 mm usable travel window, allowing you to dial back the 325 mm nominal stroke by up to 100 mm during commissioning. In this configuration, it delivers 5497 N of push force and 3681 N of pull force at 0.7 MPa. The barrel is extruded aluminum with sensor grooves on both sides, and the rod is SUS304 stainless steel.
This specific SKU is equipped with a magnetic piston for position sensing with AirTAC CMSE reed or DMSE electronic switches. It uses a PT G1/2 port and relies on a robust 25 mm rod with an M20x1.5 thread. The rear adjuster acts purely as a mechanical stop to fine-tune the end position; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 325 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX325-100S Is Used
Machine Changeover
Dial in the 100 mm adjustment window to quickly set new end positions when switching machinery to handle a different product size.
Variable End Stops
Fine-tune the retract position on the fly without adding external mechanical stops, perfect for sorting diverter arms on packaging lines.
Assembly Pressing
Leverage the 5497 N push force at 0.7 MPa to seat components, using the rear screw to precisely limit travel and prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-100S the Right Cylinder?
Choose this 100 mm bore when your application requires higher mid-range thrust, such as 5497 N at 0.7 MPa. If you need less force, stepping down to an 80 mm bore yields 3518 N of push force at 0.5 MPa. The 100 mm adjustment range here is ideal for product-size changeovers on a line, eliminating the need to physically swap cylinders or bolt on external stops. For load-holding without continuous air pressure, you would need a SAIL or BSAI variant, as this adjuster is not a locking brake.
Because this cylinder has a 325 mm stroke, the 25 mm rod and M20x1.5 thread provide strong resistance to side loads, but long unsupported strokes still require an external guide to prevent rod binding. It is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ100 Adjustable Cylinder SAIJ100BX325-100S FAQ
At 0.7 MPa, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At 0.5 MPa, it provides 3927 N push and 3681 N pull.
The rear adjuster screw lets you shorten the 325 mm nominal stroke by up to 100 mm, creating a 225 to 325 mm usable travel window. It functions as a mechanical stop to tune end positions and is not a locking mechanism.
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