Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100S
The AirTAC SAIJ100X155-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 155 mm travel by up to 100 mm. This creates a highly flexible 55-155 mm usable window, perfect for dialing in exact end positions during machine commissioning without swapping hardware. It delivers 3927 N of push force at 0.5 MPa and utilizes a PT tapered port thread for secure pneumatic sealing.
This specific configuration features an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a built-in magnet (-S) for position detection. The extruded aluminum barrel integrates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. You can fine-tune the retract end-point precisely, though the rear screw acts only as a travel stop and does not hold the load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 155 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 SAIJ100AX155-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×155 | 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 SAIJ100AX155-100S Is Used
Product Changeover
Quickly modify the effective extension distance from 55 to 155 mm when switching between different packaging sizes on the same line.
Machine Setup
Fine-tune the exact retract end-position during commissioning without machining new hard stops or replacing the entire actuator.
Variable End Stops
Dial in the precise pressing force and travel distance for assembly stations requiring flexible material positioning.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-100S the Right Cylinder?
Choose this 100 mm bore when an application requires substantial thrust—delivering 5497 N at 0.7 MPa—over a variable distance. If your setup needs less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa; if you need more, a 125 mm bore provides 6136 N at 0.5 MPa. The adjustable stroke is ideal for product-size changeovers on a line, replacing the need to physically bolt on external stops. Because the nominal stroke is 155 mm, an external guide is recommended to manage side loads, as the 25 mm rod diameter handles moderate bending moments but cannot support heavy unsupported loads indefinitely.
When specifying a replacement, match the 100 mm bore, 155 mm stroke, 100 mm adjustment range, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, dimensionally interchangeable per ISO 15552, but notably omits FB, CA, CB, and CR mounts. Remember that the rear adjuster and air cushions only decelerate the travel end; for true load-holding without live air, explore an AirTAC SAIL lock or BSAI clamp-lock 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 SAIJ100AX155-100S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm. This transforms the nominal 155 mm stroke into a usable travel window of 55 to 155 mm, letting you set the exact retract position at commissioning.
At a 0.5 MPa operating pressure, it provides 3927 N of push force and 3681 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 5497 N.
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