Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-50 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 SAIJ100X80-50
The AirTAC SAIJ100X80-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down by up to 50 mm. With a nominal 80 mm stroke, this configuration yields a highly versatile 30-80 mm usable travel window, perfect for dialing in exact end positions during commissioning without swapping out components. It features a standard carbon steel piston rod and a PT tapered port thread.
Belonging to the 100 mm bore class, this cylinder generates a substantial 3927 N of push force at 0.5 MPa (reaching 7068 N at 0.9 MPa). The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily add CMSE reed or DMSE electronic sensors later if positioning feedback becomes necessary. The rear adjustment screw acts purely as a mechanical stop to set deceleration and end limits; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-50 |
|---|---|
| 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 SAIJ100X80-50
| 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 SAIJ100X80-50 Is Used
Variable End-Stop Tuning
Fine-tune the retraction point within the 30-80 mm window during machine commissioning to accommodate varying material thicknesses without adding external stopper blocks.
Product Changeover
Quickly adjust the stroke end-position on a packaging line when switching between different product sizes, using the rear screw to set the new limit without changing the cylinder.
Clamping Force Setup
Dial in the exact travel distance for a heavy-duty clamping station, ensuring the 3927 N of thrust at 0.5 MPa engages precisely without over-traveling.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-50 the Right Cylinder?
Choose this 100 mm bore SAIJ model when your application requires significant thrust but exact end-of-stroke positioning varies per job. If 3927 N at 0.5 MPa is excessive for your load, stepping down to an 80 mm bore yields 2513 N. Conversely, if you need more force, a 125 mm bore provides 6136 N. The adjustable 30-80 mm travel window is ideal for product-size changeovers on a line, saving the downtime of physically replacing a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 80 mm nominal stroke, 50 mm adjustment range, PT port thread, and the required mounting style. SAIJ supports a specific subset of mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 100 mm bore features a robust 25 mm rod and M20x1.5 thread, it handles high side loads well, though any long unsupported travel still requires an external guide. For applications that must hold a load mechanically without live air, pair this cylinder with an external rod lock or choose the SAIL or BSAI series instead.
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 SAIJ100X80-50 FAQ
This 100 mm bore cylinder provides a push force of 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force is 3681 N at 0.5 MPa due to the single 25 mm rod.
The rear adjuster screw lets you shorten the 80 mm nominal stroke by up to 50 mm, creating a 30-80 mm usable travel window. The adjuster acts as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
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