Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-100S 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 SAIJ100X280-100S
The AirTAC SAIJ100X280-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 3927 N of push force at 0.5 MPa and features a generous 100 mm adjustment range, creating a usable travel window of 180 to 280 mm. This wide trim capability allows operators to dial in the exact retract end-position during commissioning without swapping out the entire unit.
Fitted with a carbon steel rod and a PT tapered port thread, this model includes a magnet (-S) for position sensing. The extruded aluminum barrel houses sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. As a profile cylinder, it maintains standard ISO 15552 mounting dimensions while omitting the FB, CA, CB, and CR bracket styles found on some fixed-stroke variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-100S |
|---|---|
| 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 SAIJ100X280-100S
| 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 SAIJ100X280-100S Is Used
Machine Changeover
Quickly reconfigure the retract distance by up to 100 mm when switching between different product sizes on a packaging line.
End-Position Tuning
Fine-tune the exact stopping point during initial commissioning without machining external stopper blocks.
Variable Diverter Stroke
Adjust the pusher travel window from 180 to 280 mm on the fly to accommodate varying pallet widths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-100S the Right Cylinder?
Selecting this 100 mm bore over a smaller 80 mm bore jumps the thrust from 2513 N to 3927 N at 0.5 MPa, providing robust push power for heavier fixtures. The 100 mm adjustment code is chosen when a machine requires significant product-size changeover flexibility, allowing the retract stroke to be trimmed by up to 100 mm rather than relying on a fixed SAI cylinder. Because the nominal stroke is 280 mm, an external guide should be used to support the load and mitigate side-loading on the rod.
For a seamless ISO 15552 replacement, match the 100 mm bore, 280 mm stroke, PT port thread, and -S magnet requirement. Remember that the rear adjuster functions strictly as a travel stop and works alongside the air cushion for deceleration; it does not hold the load without live air. For positive load-holding without pneumatic pressure, consider an AirTAC 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 SAIJ100X280-100S FAQ
At 0.5 MPa operating pressure, 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 acts as a mechanical stop that can trim the effective stroke by up to 100 mm. This creates a usable travel window of 180 to 280 mm, allowing you to set the exact retract position without changing the cylinder.
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