Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50 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 SAIJ100AX155-50
The AirTAC SAIJ100X155-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 105 to 155 mm, allowing you to dial back the nominal 155 mm stroke by up to 50 mm during commissioning without adding external stops. In the 100 mm bore class, it delivers 3927 N of push force at 0.5 MPa and 5497 N at 0.7 MPa.
This variant is configured with a SUS420J2 stainless steel piston rod (material code A) for improved corrosion resistance. It uses PT tapered port threads (G1/2) and omits a magnet. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50 |
|---|---|
| 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 SAIJ100AX155-50
| 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 SAIJ100AX155-50 Is Used
Product Changeovers
Quickly modify the effective stroke from 105 to 155 mm to handle different part sizes on the same production line without swapping cylinders.
End-Position Tuning
Fine-tune the retract end-of-stroke during machine commissioning to perfect timing and avoid mechanical hard stops.
Heavy-Duty Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or fixtures while precisely controlling the travel distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX155-50 the Right Cylinder?
Select this 100 mm bore when your application requires substantial thrust (up to 801 kgf at 1.0 MPa) but still needs precise end-position tuning. If you need less force, stepping down to the 80 mm bore yields 2513 N at 0.5 MPa. Choose this adjustable-stroke model over a fixed SAI when you need a variable end-stop to accommodate product changeovers. Because the stroke is 155 mm, external guiding is recommended for optimal side-load management.
The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series. As a dimensionally interchangeable ISO 15552 cylinder, it matches standard bore, stroke, PT port, and mounting footprints.
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 SAIJ100AX155-50 FAQ
The rear adjusting screw allows you to shorten the effective stroke by up to 50 mm. This gives the 155 mm nominal stroke a usable travel window of 105 to 155 mm, which can be set at commissioning without changing the cylinder.
At 0.5 MPa operating pressure, it 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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Standard models usually ship in 3-4 days.
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