Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-30
The AirTAC SAIJ100X80-30 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. It features a SUS304 stainless steel rod and PT tapered port threads. The built-in rear stopper allows you to dial back the 80mm nominal stroke by up to 30mm, creating a precise 50-80mm usable travel window for product changeovers.
This adjustable design eliminates the need to swap cylinders or bolt on external stops during machine setup. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB and CA styles found on some fixed-stroke variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAIJ100BX80-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SAIJ100BX80-30 Is Used
Product Changeover
Dial in the exact end-stop position on the fly when switching between product sizes on a packaging line, using the 30mm adjustment range to avoid mechanical rebuilds.
Press Fit Tuning
Fine-tune the pressing depth of bearings or pins during commissioning, relying on the 5497N output at 0.7 MPa to seat components accurately.
Variable End Stops
Set precise retract positions for actuators in modular assembly machinery where the exact stroke endpoint must be tweaked without replacing the entire cylinder.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-30 the Right Cylinder?
Choose this 100mm bore when an 80mm standard SAI cylinder lacks the end-position flexibility your application requires. If you need less force, stepping down to an 80mm bore yields 3518N at 0.7 MPa, while a 125mm bore provides 8590N for heavier loads. The 25mm rod and M20x1.5 thread handle high side loads, but because the stroke is short, external guides are less critical here than on longer travels.
For load-holding without continuous air pressure, this cylinder is insufficient; the rear adjuster is a stop, not a lock. You would need an external pilot-operated check valve or a related AirTAC type like SAIL or BSAI. To replace an ISO 15552 cylinder, match the 100mm bore, 80mm stroke, PT port, and 30mm adjustment code. Note that without the -S magnet option, this SKU cannot host CMSE or DMSE sensors.
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 SAIJ100BX80-30 FAQ
The rear adjuster acts as an external mechanical stop that shortens the effective travel. For this model, you can trim the 80mm stroke back by up to 30mm, providing a usable travel window of 50-80mm to fine-tune the end position without adding external stops.
Based on the 100mm bore, the cylinder provides 3927N of push force and 3681N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 5497N, and at 0.9 MPa it reaches 7068N.
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