Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20S
The AirTAC SAIJ100X175-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 175 mm stroke that can be dialed back by up to 20 mm, creating a precise 155-175 mm usable travel window for product changeovers without swapping hardware. In the 100 mm bore class, it delivers substantial thrust, generating 7068 N of push force at 0.9 MPa and 5497 N at 0.7 MPa.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threading for its G1/2 connections. The extruded aluminum barrel includes sensor grooves on both sides, and because this SKU includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact end-position detection.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAIJ100AX175-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SAIJ100AX175-20S Is Used
Machine Changeover
Dial in the 155-175 mm retract position during product size changes on a packaging line without replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the stroke end during machine commissioning to absorb mechanical tolerances and set the exact resting position for high-force tooling.
Heavy Assembly Press
Leverage the 7068 N push force at 0.9 MPa to drive heavy pressing and seating operations while retaining the ability to trim the stroke by up to 20 mm.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-20S the Right Cylinder?
Select this 100 mm bore adjustable cylinder when an application requires high force alongside variable end-stop positioning at commissioning. If you need less thrust, stepping down to an 80 mm bore drops the push force to 4523 N at 0.9 MPa, whereas moving up to 125 mm increases it to 11045 N. Choose the SAIJ adjustable-stroke format over a fixed SAI model when you need to fine-tune the retract end position on the fly, rather than machining external stops or replacing the cylinder.
For an exact ISO 15552 dimensional replacement, match the 100 mm bore, 175 mm stroke, 20 mm adjustment range, G1/2 port, and -S magnet. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Remember that the rear adjuster acts purely as a travel stop and does not hold the load without live air; for true pneumatic locking without pressure, consider the SAIL or BSAI series.
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 SAIJ100AX175-20S FAQ
This 100 mm bore cylinder generates 5497 N of push force at 0.7 MPa and 7068 N at 0.9 MPa, with a pull force of 3681 N at 0.5 MPa. It operates at speeds between 30 and 800 mm/s.
The rear adjusting screw acts as an external stopper that lets you shorten the effective stroke by up to 20 mm from the nominal 175 mm, providing a usable travel window of 155-175 mm. The adjuster only sets the travel end and does not lock the load without live air pressure.
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