Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 170mm 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
- Stroke170 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20
The AirTAC SAIJ100X170-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 150-170 mm usable travel window, allowing you to dial back the nominal 170 mm stroke by up to 20 mm during commissioning. This bore size delivers a robust 3927 N push force at 0.5 MPa and 7068 N at 0.9 MPa, making it ideal for heavy-duty positioning tasks.
This unit uses a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads (G1/2) and includes variable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel includes dual sensor grooves, compatible with AirTAC CMSE reed and DMSE electronic sensors when a magnet is specified.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 170 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 SAIJ100AX170-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×170 | 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 SAIJ100AX170-20 Is Used
Machine Changeover
Quickly fine-tune the 150-170 mm travel window during product size changeovers on a packaging line without replacing the cylinder.
Heavy Duty Positioning
Leverage the 7068 N push force at 0.9 MPa to move heavy pallets or fixtures, using the rear stopper to set exact end positions.
Variable End Stops
Dial in the exact retraction point during machine commissioning to accommodate varying material thicknesses in an assembly process.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20 the Right Cylinder?
Choose this adjustable model over a fixed-stroke SAI when your machine setup requires fine end-position tuning or product-size changeovers without swapping cylinders or adding external stops. If your application needs less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa; for higher force demands, a 125 mm bore offers 6136 N. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure. For true load-holding, consider the SAIL or BSAI series.
To replace an ISO 15552 cylinder, match the 100 mm bore, 170 mm stroke, 20 mm adjustment range, PT G1/2 port, and your required mounting style. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR brackets. Because the 170 mm stroke is below the 300 mm side-load threshold, standard mounting is sufficient, though long unsupported loads still need an external guide.
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 SAIJ100AX170-20 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 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 acts as an external stopper, allowing you to shorten the effective stroke by up to 20 mm. This creates a 150-170 mm usable travel window for fine-tuning the end position at commissioning without swapping the cylinder.
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