Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-20S
The AirTAC SAIJ100X115-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 95 to 115 mm. Delivering 3927 N of push force at 0.5 MPa, it handles substantial loads while allowing precise end-position tuning during commissioning without swapping out the unit.
This variant features a SUS420J2 stainless steel rod for enhanced durability against moisture and includes a built-in magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel design integrates sensor grooves on both sides, and the PT tapered port threads ensure a tight, reliable pneumatic connection.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 115 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 SAIJ100AX115-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×115 | 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 SAIJ100AX115-20S Is Used
Product Changeover Tuning
Quickly dial in the 95-115 mm stroke window during production line changeovers to accommodate different package sizes without repositioning the cylinder.
Variable End-Stop Diverter
Adjust the retract position on the fly for conveyor sorting arms, ensuring precise product routing as line speeds and item dimensions vary.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial machine commissioning to achieve exact mechanical alignment without adding external stopper blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-20S the Right Cylinder?
Choose this adjustable-stroke model when an application requires fine-tuning the retract end-position on the fly, such as accommodating varying product sizes on a conveyor line. If you need less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa. For higher force demands, a 125 mm bore provides 6133 N at the same pressure.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 115 mm stroke, 20 mm adjustment range, PT port threads, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Remember that the rear adjuster acts only as a travel stop; for load-holding without live air pressure, select a SAIL or BSAI cylinder 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 SAIJ100AX115-20S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. It can deliver up to 7068 N of push force at 0.9 MPa.
The rear adjusting screw allows you to shorten the effective stroke by up to 20 mm, providing a usable travel window of 95 to 115 mm. This stopper only sets the travel end and does not lock the load without continuous air pressure.
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Standard models usually ship in 3-4 days.
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