Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-40S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX185-40S 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 SAIJ100AX185-40S
The AirTAC SAIJ100X185-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 145 to 185 mm. The integrated -S magnet enables precise position detection using AirTAC CMSE reed or DMSE electronic solid-state sensors housed in the dual-side barrel grooves.
This model features a SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered port threads for a secure pneumatic seal. The rear stopper screw allows you to fine-tune the end position during commissioning without adding external stops. Note that this adjuster acts solely as a travel stop to set deceleration alongside the air cushions, not as a lock to hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-40S |
|---|---|
| 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 SAIJ100AX185-40S
| 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 SAIJ100AX185-40S Is Used
Product Changeovers
Dial in the 145-185 mm travel window during format changes on packaging lines, using the rear adjuster to hit exact end positions without changing hardware.
Machine Setup
Set precise end-stops during initial machine build using the 40 mm adjustment range, paired with DMSE electronic sensors for repeatable positioning.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-40S the Right Cylinder?
The 40 mm adjustment range is ideal for product changeovers on a line, allowing you to dial in the exact 145-185 mm end position without swapping the cylinder for a fixed-stroke SAI variant. To match this ISO 15552 interchangeable unit, specify the 100 mm bore, 185 mm stroke, PT port thread, and your preferred mounting from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or TCM2.
Because the 185 mm stroke is relatively short for this bore size, side-load stress on the 25 mm rod is manageable, but an external guide remains recommended for heavy off-center loads. If your process requires the load to be held mechanically in place without continuous air pressure, a standard SAIJ will not suffice; you should explore the SAIL air-released lock or BSAI clamp-lock 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 SAIJ100AX185-40S FAQ
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back from the 185 mm nominal stroke down to 145 mm. It sets the end position but does not lock the load without live air pressure.
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