Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX185-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 185mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke185 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-20
The AirTAC SAIJ100X185-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 165 to 185 mm, enabling precise end-position tuning during commissioning without swapping hardware.
This model utilizes a PT tapered port and omits the FB, CA, CB, and CR mounting options found on some standard cylinders, utilizing a focused set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. The extruded aluminum barrel includes dual-side sensor grooves, though this specific SKU lacks the magnet required for electronic or reed switch integration.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 185 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×185 | 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 SAIJ100AX185-20 Is Used
Press Tooling Alignment
Dial in the exact 165-185 mm end position during press setup to accommodate varying material thicknesses without re-engineering the fixture.
Machine Changeover
Rapidly adjust the retract stopper by up to 20 mm when switching a production line between different product sizes and profiles.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-20 the Right Cylinder?
Select this 100 mm bore actuator when an application demands high thrust (5497 N at 0.7 MPa) alongside variable end-stop positioning. If your setup requires less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590 N. The integrated rear stopper allows you to dial back the nominal 185 mm stroke by up to 20 mm, which is far more efficient than machining external physical stops.
Because the 185 mm stroke is under the 300 mm threshold, a separate external guide is less critical, though the robust 25 mm rod and M20x1.5 thread naturally handle higher side loads. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an external rod lock or the AirTAC SAIL series. This unit is dimensionally interchangeable per ISO 15552.
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 SAIJ100AX185-20 FAQ
The cylinder has a nominal 185 mm stroke, but the external rear adjusting screw allows you to shorten the effective travel by up to 20 mm. This creates a 165-185 mm adjustable window, letting you set the exact retract position during commissioning.
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