Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-50
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX280-50 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 SAIJ100AX280-50
The AirTAC SAIJ100X280-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 230 to 280 mm, allowing you to dial back the nominal 280 mm stroke by up to 50 mm during commissioning without swapping the barrel.
This variant uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and pairs with PT tapered port threads (G1/2). The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches. Remember that the rear adjuster acts only as a travel stop to fine-tune deceleration; it does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-50 |
|---|---|
| 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 SAIJ100AX280-50
| 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 SAIJ100AX280-50 Is Used
Product Changeovers
Quickly reposition the rear stopper to shift the 230-280 mm travel window, adapting assembly lines to new product lengths without changing hardware.
Machine Setup Tuning
Fine-tune the end-of-stroke position during commissioning to perfect a press fit or alignment, avoiding the need for external shims.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-50 the Right Cylinder?
Choose this 100 mm bore adjustable-stroke cylinder when your application requires high thrust (7068 N at 0.9 MPa) alongside flexible end-position tuning for product changeovers. If your setup only needs standard fixed travel, the base SAI cylinder is simpler, but the SAIJ rear screw stopper saves time by letting you trim the stroke by up to 50 mm on the fly.
Because the 280 mm stroke is substantial, ensure your mounting configuration handles potential side loads. The SAIJ series supports a reduced set of ISO 15552 mounting options: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). If the machine loses air, this cylinder will not hold its position; for true load-holding without live pressure, consider the BSAI clamp-lock or SAIL pneumatic lock variants 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 SAIJ100AX280-50 FAQ
It can reach a maximum of 801 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the effective travel from the nominal 280 mm down to 230 mm. It acts as a mechanical stop to set the end position, but it does not lock the load if air pressure is lost.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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