Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 260mm 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
- Stroke260 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-75
The AirTAC SAIJ100X260-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 3927N push force at 0.5 MPa. It features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered ports. The integrated rear stopper allows you to dial back the 260mm nominal stroke by up to 75mm, creating a precise 185-260mm usable travel window without swapping out the entire actuator.
Because this is an extruded aluminum profile cylinder rather than a tie-rod design, it provides sensor grooves on both sides for easy switch placement. The rear adjuster acts purely as a mechanical travel stop to fine-tune the end position during commissioning or product changeovers. It does not lock the load or hold position without live air pressure, meaning load-holding requires an external pilot-operated check valve or a related locking type like SAIL or BSAI.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 260 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 SAIJ100BX260-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×260 | 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 SAIJ100BX260-75 Is Used
Product Changeover
Dial in the 185-260mm travel window rapidly during format size changes on a packaging line without disassembling the actuator.
Variable End Stops
Use the rear mechanical stopper to set precise lower limit positions for pressing or forming tasks that require exact end-position tuning.
Machine Setup
Fine-tune the retract stroke during initial commissioning to clear obstructions or align tooling perfectly before locking down the sequence.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-75 the Right Cylinder?
Choose this 100mm bore actuator when an application demands high thrust (3927N push at 0.5 MPa) alongside flexible end-position tuning. If you need slightly less force, stepping down to an 80mm bore yields 2513N push force, while moving up to a 125mm bore provides 6136N. The adjustable stroke is ideal for variable end stops and machine setup where a fixed-stroke SAI cylinder would require external shims. To match this ISO 15552 replacement exactly, specify the 100mm bore, 260mm stroke, 75mm adjustment, PT port thread, and SUS304 rod material.
With a 260mm stroke, the 25mm rod diameter and M20x1.5 rod thread provide substantial rigidity, but an external guide is still recommended to prevent excessive side-loading on long unsupported travels. This model supports a speed range of 30-800 mm/s and uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ100BX260-75 FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw lets you mechanically shorten the 260mm nominal stroke by up to 75mm, providing an effective 185-260mm travel window. It functions as a travel stop for end-position tuning and does not hold the load without live air pressure.
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