Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 280mm 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
- Stroke280 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30
The AirTAC SAIJ100X280-30 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a 250-280 mm usable travel window, allowing you to dial back the nominal 280 mm stroke by up to 30 mm during commissioning without adding external stops. Delivering 3927 N of push force at 0.5 MPa, it handles heavy actuation tasks with precision.
This 100 mm bore unit uses a G1/2 port and a 25 mm carbon steel rod with an M20x1.5 thread, providing robust resistance to side loads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. It supports a standard mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 280 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 SAIJ100X280-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×280 | 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 SAIJ100X280-30 Is Used
Machine Changeover
Dial in the exact retract position within the 250-280 mm window when switching production lines to accommodate different product lengths.
Heavy Pressing
Leverage the 3927 N push force at 0.5 MPa for assembly operations while trimming the final approach distance safely.
Commissioning Tuning
Fine-tune the end-stop at startup to perfect timing without physically swapping the cylinder or bolting on external stoppers.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your application requires variable end positions or frequent product-size changeovers. The rear screw acts purely as a travel stop to fine-tune the retract end; it does not hold the load without live air pressure. For secure load-holding, select a SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock.
When specifying an ISO 15552 replacement, match the 100 mm bore, 280 mm stroke, 30 mm adjustment, PT tapered port thread, and your required mounting style. Because the 280 mm stroke is substantial, ensure an external guide supports the load to prevent rod bending, as the 25 mm rod alone cannot absorb excessive deflection.
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 SAIJ100X280-30 FAQ
The rear adjuster screw lets you shorten the effective travel from the nominal 280 mm down to 250 mm. This stopper sets the retract end position but does not lock or hold the load without continuous air pressure.
It provides 3927 N of push force and 3681 N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 5497 N.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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