Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50S 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 SAIJ100AX155-50S
The AirTAC SAIJ100X155-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial back the nominal 155 mm travel to any point within a 105-155 mm window. It delivers substantial thrust, pushing 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, making it robust enough for heavy-end positioning tasks.
This unit ships with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The rear screw acts purely as a mechanical stop to fine-tune the retract position during commissioning; it does not lock the load without live air pressure. Mounting options cover the SAIJ subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50S |
|---|---|
| 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 SAIJ100AX155-50S
| 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 SAIJ100AX155-50S Is Used
Product Changeover
Quickly reconfigure the 105-155 mm travel window for different product sizes on a single line without swapping out the entire actuator.
Commissioning Calibration
Dial in the exact retract end-position during machine setup to perfect timing and avoid mechanical crashes.
Heavy-Duty Positioning
Leverage the 7068 N push force at 0.9 MPa to move and position heavy pallets or tooling carts accurately.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50S the Right Cylinder?
Choose this 100 mm bore when your application requires more force than a 63 mm cylinder (which provides 2182 N push at 0.5 MPa) but you want to avoid the bulk of a 125 mm unit. The adjustable 50 mm travel window is ideal for product changeovers, allowing you to reposition the end-stop without physically swapping the cylinder or adding external stops. For load-holding without continuous air pressure, skip this standard SAIJ and look at the SAIL or BSAI locking cylinders. When matching ISO 15552 replacements, verify the 100 mm bore, 155 mm stroke, 50 mm adjuster, PT tapered port threads, and the -S magnet option.
Because the 155 mm stroke is relatively short, side-load stress is minimal, but you should still ensure the M20x1.5 rod thread is cleanly aligned with your mating fixture to prevent binding. The integrated air cushions at both ends handle end-of-stroke deceleration, but remember they only soften the stop—they do not brake or hold the load mechanically.
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 SAIJ100AX155-50S FAQ
At 0.7 MPa it provides 5497 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you mechanically shorten the 155 mm nominal stroke down to a minimum of 105 mm. It functions as a travel stop for fine-tuning end positions, but it does not lock or hold the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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