Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 230mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke230 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S
The AirTAC SAIJ40X230-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 220 to 230 mm usable travel window by allowing you to trim up to 10 mm off the 230 mm nominal stroke during commissioning. In the 40 mm bore class, it delivers 879 N of push force at 0.7 MPa, utilizing a G1/4 port and 30 mm cushions at both ends.
This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet (-S) for use with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop to fine-tune the end position; it does not hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 230 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×230 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX230-10S Is Used
Machine Changeover
Dial in the exact 220-230 mm end position during product size changes without swapping cylinders or bolting on external stops.
Variable End Stops
Set precise retract positions on the fly using the rear adjuster, perfect for testing and dialing in assembly depths.
Corrosive Setup
Leverage the SUS304 stainless steel rod and adjustable travel for manufacturing environments requiring repeatable, washdown-capable positioning.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX230-10S the Right Cylinder?
Choose this 40 mm bore adjustable cylinder when you need precise end-position tuning without swapping components or adding external stops. If your application requires less force, stepping down to a 32 mm bore yields 563 N at 0.7 MPa, whereas stepping up to a 50 mm bore provides 1374 N. Because the stroke is 230 mm, an external guide is recommended to prevent excessive side loads on the rod.
An adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers. For load-holding without continuous air pressure, this cylinder is insufficient; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead. To match this ISO 15552 replacement exactly, specify: 40 mm bore, 230 mm stroke, 10 mm adjustment, PT tapered ports, SUS304 rod, and the -S magnet option.
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 SAIJ40 Adjustable Cylinder SAIJ40BX230-10S FAQ
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke by up to 10 mm, creating a 220-230 mm usable travel window. It sets the end position but does not lock or hold the load without live air pressure.
At 0.7 MPa, the SAIJ40X230-10-S provides 879 N of push force and 738 N of pull force. It operates at speeds between 30 and 800 mm/s.
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