Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX280-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke280 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-20S
The AirTAC SAIJ100X280-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 260 to 280 mm, allowing you to dial back the nominal 280 mm stroke by up to 20 mm during machine setup without adding external stops.
This SKU is configured with a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for electronic DMSE or reed CMSE position sensing. The extruded aluminum barrel integrates sensor grooves on both sides. It uses a PT G1/2 port and relies on a variable air cushion at both ends to decelerate the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-20S |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-20S
| 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 SAIJ100AX280-20S Is Used
Product Changeover Tuning
Fine-tune the 260-280 mm travel window on packaging lines during format changes without physically swapping out the cylinder.
End-Stop Calibration
Precisely set the retract end-position during machine commissioning to dial in pressing or lifting operations perfectly.
Variable Transfer Stops
Adjust the physical stop position on a conveyor to handle different package sizes on the fly using the rear adjusting screw.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-20S the Right Cylinder?
An adjustable stroke is selected over a fixed SAI when a product line requires frequent end-position tuning or changeovers. Since the 280 mm stroke is over 300 mm, an external guide is recommended to prevent side-load damage to the M20x1.5 rod thread.
For a true ISO 15552 replacement, match the 100 mm bore, 280 mm stroke, 20 mm adjustment, PT G1/2 port, and -S magnet. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster is a travel stop, not a lock; it cannot hold a load without live air. For dead-load holding, use a SAIL or BSAI cylinder.
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 SAIJ100AX280-20S FAQ
At the maximum 1.0 MPa pressure, the push force reaches 7068 N.
The rear adjusting screw acts as a stopper that lets you shorten the effective travel from the 280 mm nominal stroke down to 260 mm. It is a travel stop for end-position tuning, not a load-holding lock.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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