Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-20 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 SAIJ100BX260-20
The AirTAC SAIJ100X260-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 5497N of push force at 0.7 MPa and features a 260mm nominal stroke that can be fine-tuned down by 20mm, providing a usable travel window of 240-260mm. This built-in adjustability allows you to dial in exact end positions at commissioning without swapping out the cylinder or adding external stops.
This model features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-20 |
|---|---|
| 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 SAIJ100BX260-20
| 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 SAIJ100BX260-20 Is Used
Product Changeovers
Dial in the 240-260mm travel window during line changeovers to accommodate varying product lengths without replacing the cylinder.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to perfect seating pressure without adding external physical stops.
Heavy Assembly Press
Leverage the 5497N push force at 0.7 MPa to seat heavy components, using the adjuster to prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-20 the Right Cylinder?
Choose this 100mm bore cylinder when your application requires substantial force (5497N push at 0.7 MPa) and on-the-fly end-position tuning. If your force requirements are lower, stepping down to an 80mm bore yields 3518N push at 0.7 MPa. The adjustable rear screw is ideal for product-size changeovers on a line, whereas a fixed SAI cylinder is better for set-and-forget repetitive strokes.
To replace this ISO 15552 cylinder, match the 100mm bore, 260mm stroke, 20mm adjustment, PT port threads, SUS304 (B) rod material, and standard non-magnet configuration. Since the stroke is 260mm, ensure proper external guiding to prevent excessive side-loading on the 25mm rod. The SAIJ mounting set includes 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 SAIJ100BX260-20 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. It can reach up to 7068N push at 0.9 MPa.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the 260mm nominal stroke by up to 20mm. This creates a usable travel window of 240-260mm for fine-tuning end positions. It is a stop, not a lock, and will not hold the load without live air pressure.
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