Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 135mm 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
- Stroke135 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-20S
The AirTAC SAIJ100X135-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 115 to 135 mm, allowing you to trim the effective stroke by up to 20 mm during commissioning without swapping the cylinder or adding external stops. Built with a SUS420J2 stainless steel rod (code A), it handles demanding environments while delivering 3927 N of push force at 0.5 MPa.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat neatly into the sensor grooves on both sides of the extruded aluminum barrel. The G1/2 port and 25 mm rod diameter provide a robust interface for high-flow pneumatic control. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 135 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 SAIJ100AX135-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×135 | 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 SAIJ100AX135-20S Is Used
Product Changeovers
Dial in the 115-135 mm travel window during format changes on packaging lines, avoiding the need to physically swap cylinders for different carton sizes.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to prevent crashes, using the rear screw to set the exact 20 mm trim without external stopper blocks.
Heavy Forming Presses
Leverage the 3927 N push force at 0.5 MPa for pressing and forming tasks while retaining the flexibility to adjust the stroke length for varying material thicknesses.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-20S the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust, such as the 3927 N push force at 0.5 MPa, but want to fine-tune the end position on the fly. If your application requires less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa. The adjustable 115-135 mm window is ideal for product changeovers, letting you dial in the exact retract stop without machining new hard stops.
Because the stroke is 135 mm, side-load risks are moderate, but always ensure external guiding for heavy loads. The rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. This SKU is dimensionally interchangeable per ISO 15552 and features PT tapered ports and a -S magnet.
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 SAIJ100AX135-20S FAQ
The rear adjuster screw allows you to shorten the nominal 135 mm stroke by up to 20 mm, providing an effective travel window of 115 to 135 mm. The adjuster acts as a mechanical stop to fine-tune the end position and is not a lock.
At a 0.5 MPa operating pressure, the SAIJ100X135-20-S provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
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