Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-40 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 SAIJ100X80-40
The AirTAC SAIJ100X80-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to shorten the effective travel. With a nominal 80 mm stroke and a 40 mm adjustment screw, you gain a usable travel window of 40 to 80 mm. This enables fine end-position tuning at commissioning without swapping the cylinder or adding external stops. It delivers a robust 3927 N push force at 0.5 MPa and uses a G1/2 port.
The 25 mm carbon steel piston rod and M20x1.5 rod thread provide strong resistance to side loads, though any long unsupported travel still requires an external guide. This model uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some standard variants. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches, though this specific SKU does not include a magnet.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-40 |
|---|---|
| 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 SAIJ100X80-40
| 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 SAIJ100X80-40 Is Used
Product Changeover
Dial in the 40 to 80 mm travel window during product size transitions on a packaging line without physically replacing the cylinder.
Machine Setup
Fine-tune the exact retract end position during initial commissioning to perfect a pressing or holding operation.
Variable End Stops
Create flexible end-stops for automated assembly machinery where multiple stroke lengths are tested on a single station.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-40 the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust, such as the 3927 N push force at 0.5 MPa, which is a significant step up from the 63 mm bore offering 1559 N. If your application requires less force, stepping down to an 80 mm bore yields 2513 N while saving space. The adjustable stroke is ideal for machine setups requiring variable end stops or frequent product-size changeovers, giving you flexibility that a fixed SAI cylinder cannot. Remember that the rear adjuster acts as a travel stop and deceleration aid, not a lock; it will not hold a load without live air. For load-holding, consider an external rod lock, a pilot-operated check valve, or the AirTAC SAIL and BSAI series. To match this ISO 15552 dimensionally interchangeable replacement, confirm the 100 mm bore, 80 mm stroke, 40 mm adjustment, PT tapered port, and mounting style.
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 SAIJ100X80-40 FAQ
At an operating pressure of 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw lets you trim the 80 mm nominal stroke back by up to 40 mm, creating a usable travel window of 40 to 80 mm. This mechanism acts as a physical stop to set the end position and is not a locking device.
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