Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20S 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 SAIJ100BX170-20S
The AirTAC SAIJ100X170-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. It provides a 150 to 170 mm usable travel window, allowing you to dial back the nominal 170 mm stroke by up to 20 mm during machine commissioning. In the 100 mm bore class, it generates 3927 N of push force and 3681 N of pull force at 0.5 MPa.
This SKU features a SUS304 stainless steel rod for corrosion resistance and includes a built-in magnet (-S) for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some standard mounts.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20S |
|---|---|
| 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 SAIJ100BX170-20S
| 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 SAIJ100BX170-20S Is Used
Machine Setup Tuning
Dial in the exact 150 to 170 mm end-stop during initial commissioning to perfect the pressing position without swapping out the entire cylinder.
Product Changeover
Quickly adapt the retract end-position on a packaging line when product sizes change, using the 20 mm adjustment range to accommodate new formats.
Variable End Stops
Fine-tune the stroke on automated assembly machinery to compensate for mechanical wear or tooling variations, ensuring precise repeatability.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20S the Right Cylinder?
Select this 100 mm bore when an 80 mm bore (2513 N push at 0.5 MPa) is insufficient, but a 125 mm bore (6136 N) would be excessive. The adjustable stroke is chosen over a fixed SAI cylinder when you need precise end-position tuning at setup or during product changeover without adding external stops. At 170 mm stroke, the 25 mm rod and M20x1.5 thread handle side loads well, but any stroke of 300 mm or more on larger cylinders still requires an external guide to prevent binding.
To match this ISO 15552 cylinder for a replacement, verify the 100 mm bore, 170 mm stroke, 20 mm adjustment range, PT tapered port, and the -S magnet. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For true load-holding without pressure, consider the SAIL or BSAI series instead.
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 SAIJ100BX170-20S 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 the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
A rear adjusting screw lets you shorten the effective travel from the 170 mm nominal stroke by up to 20 mm, creating a 150 to 170 mm usable window. This stopper fine-tunes the end position but does not lock or hold the load without live air pressure.
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